TRYP by Wyndham Pulteney Street Adelaide, SA

Following the pandemic's challenges, South Australia has seen a resurgence in tourism activities, with a bustling events calendar, the reinstatement of cruise ship stops, and improved air travel links. There are promising signals of an increase in national and international visitors alike, building upon the pre-pandemic benchmark of attracting approximately 6.8 million travelers annually.

“Adelaide has been calling out for more accommodation because capacity is often exceeded when we have events. There's been a shortage of hotels here for some time, especially with major events like the Fringe coming up,” explained Daryl Crebbin, General Manager, Marshall & Brougham Constructions.

The construction of TRYP by Wyndham Pulteney Street Adelaide is timely, poised to cater to the increasing influx of visitors seeking to explore the region's cosmopolitan culture and rich history in arts and festivals.

TRYP by Wyndham marks a significant milestone as the introduction of the TRYP by Wyndham brand to Australia.  This 120-room property exemplifies contemporary design and urban energy, with architecture that echo the city's vibrant lifestyle. Its city location offers guests easy access to Adelaide's rich tapestry of multicultural restaurants, lively bars, decorated laneways, and the boutique shopping experience of Adelaide Central Markets and Rundle Mall. 

Central to its construction was the integration of Fielders' KingFlor® KF70® steel formwork system, a testament to the industry's shift towards more efficient, lightweight construction methodologies.

From the outset, the TRYP by Wyndham Pulteney Street Adelaide project was faced with site constraints, primarily due to the proximity of existing buildings that bordered the construction area.

“There were some challenges on site as there were existing structures at north and south where we need to ensure no damages due to the excavations or piling therefore, underpinning and temporary supports were applied,” said Samir Hanna, Principal Structural Engineer, MLEI. 

To circumvent these challenges, the project team decided on a different approach to traditional propping.

"One of the solutions was to not have propping for the formwork and that's why a steel frame structure with the steel formwork system was used," said Daryl Crebbin.

MLEI, the project design engineers, chose to use a known Fielders solution. “We designed the suspended slabs with KingFlor® KF70® formwork to avoid the requirement for propping” explained Samir Hanna.

This decision, alongside the use of eco-friendly materials and unique finishes, expedited the construction process, added to the building's distinctive aesthetic, while also reducing costs.

Fielders’ KingFlor® KF70® system has been recognised globally as a cost-effective composite steel formwork solution, preferred for its longer span capabilities and deeper profile compared to other formwork options

"A key advantage of using the KingFlor® KF70® system is its ability to reduce the weight of the building,” explained Ashesh Singh, BDM - Engineering of South and Western Australia, Fielders. 

“This is achieved through the unique profile of the decking, which displaces a certain amount of concrete. The KingFlor® KF70® system displaces 26 millimeters of concrete by volume compared to a standard concrete slab. Opting for the KingFlor® KF70® system results in a lighter slab, which in turn requires a lighter foundation. This reduction in weight and material use offers significant benefits, both financially and structurally, to builders and property owners alike during construction."

With features like SquashCut™ ends and availability in pre-cut lengths with a 600mm wide cover, KF70® significantly accelerates the installation process, making it an ideal choice for large-scale projects like TRYP by Wyndham Pulteney Street Adelaide.

"The good thing about KingFlor® is that you can get larger spans with it, needing to use a bit less concrete, and it’s a strong profile," said a representative of Structural Systems, an Adelaide-based consulting engineering company, who were involved in the substructure and undertook inspections to ensure compliance during construction.

The installation process of the KingFlor® KF70® system was smooth and efficient, leading to substantial savings in concrete, supporting framework, and foundation load costs. 

“We have a good relationship with Fielders and they always provide technical advice and support,” commented Samir Hanna.

“One thing I can say about Fielders and the formwork is that the deliveries were timely and always reliable in that regard,” Daryl Crebbin said.

The TRYP by Wyndham Pulteney Street Adelaide project has been distinguished by multiple awards that underscore its exceptional quality, innovative approaches, and positive contributions to the community. 

Among these accolades are the Building Excellence Award for Commercial/Industrial Building, with a project cost ranging from $20 million to $50 million, given by the Master Builders Association of South Australia. This award recognises the project's outstanding construction quality and its adherence to high industry standards. 

The project also received the Professional Excellence Award 2023 for Commercial Construction, for projects valued between $25 million and $60 million, from the Australian Institute of Building. This award was granted both at the state and national levels, highlighting the project's exemplary standards in construction and design.

By combining construction excellence with innovative design, the TRYP by Wyndham Pulteney Street Adelaide has set a new benchmark for hotels in the region, contributing significantly to the local community and the broader hospitality industry.

Conclusion

The TRYP by Wyndham project exemplifies the seamless integration of advanced construction technologies, notably Fielders' KingFlor® KF70® steel formwork system, to address the evolving demands of the global hospitality industry. 

This collaboration between engineers, architects, and Fielders has resulted in a development that elevates modern construction benchmarks, setting a new standard for hospitality facilities in Adelaide and further afield. 

The project, through its innovative approach and attention to detail, not only enhances Adelaide's accommodation landscape but also speaks to the potential for future developments to combine architectural innovation with practical and sustainable construction solutions.

Art Gallery of New South Wales, NSW

The number of innovative building products available to Australian architects, specifiers and builders these days is impressive, and continues to grow as manufacturers are constantly innovating to develop construction materials that look better, last longer and are easier and more economical to work with.

But what if the ideal product just doesn’t exist?

This was the case for Japanese architectural firm SANAA, who were tasked with designing the recently opened $344M AUD Sydney Gallery of Modern Art project.

It’s a complex development that takes a bespoke construction and design approach which includes green roofs planted with Australian native species, almost 1,500m² of solar panels and of course fully curated exhibition and museum spaces. The new building also features art research and education spaces, multipurpose spaces, a gallery shop, food and beverage facilities and visitor amenities.

The centrepiece structure was designed to complement the Art Gallery’s existing building – a 19-century structure with neoclassical façade – and presents a series of interlocking pavilions that step down towards Sydney Harbour. The buildings sit low and lightly on the land, tracing the natural topography of the land.

A key feature of the project is the use of Fielders KingFlor®, which is used as permanent formwork for concrete slabs on multiple levels of the structure. In most cases the metal decking has been left exposed to form interior ceilings and as soffits on the building’s substantial exterior overhangs.

When Pritzker prize-winning lead architects Kazuyo Sejima and Ryue Nichizawa, together with builders Richard Crookes Constructions evaluated the available steel decking options, they were attracted to the KingFlor® range but failed to find a profile that would meet the project’s architectural intent. So, they then approached the Fielders Design Solutions Group (DSG) for counsel.

The purpose of the DSG is to provide additional value to partners including architects, engineers, specifiers, builders and developers, by sharing expert advice and support to these partners throughout all stages of their projects, from early conceptualisation to completion.

The Sydney Gallery of Modern Art development is a prime example of how the DSG can assist. Upon discovering that the client wanted a bespoke, visually driven profile for their development, Fielders’ expert team began working towards a solution. Ultimately a unique decking product KingFlor® KF100, was created exclusively for this project, which drew on the fundamentals of the existing KF70® product, but with a revised profile that delivered the architects the cleaner, smoother lines they were seeking.

KingFlor® KF100 required a revised manufacturing process, but prior to reaching this stage, prototype products needed to be made and subjected to Fielders stringent testing program, before ultimately being trialed and verified in an independent NATA accredited laboratory.

The DSG also assisted in a trial installation to ensure the client was completely satisfied with the appearance and functionality of KingFlor® KF100. Along with meeting its visual goals, KingFlor® KF100 delivered the functionality and cost saving benefits – that can be found across the entire KingFlor® range – to the project.

Compared to conventional plywood formwork, the range-wide efficiencies of KingFlor® include achieving considerable time, labour and resource savings as there’s less set-up and back propping needed before pouring the slab and then removing the formwork once the concrete has cured.

Additionally, Permanent metal deck formwork like Fielders KingFlor® stays in place after the concrete has set and has superior unpropped spans, reducing the back propping requirements and labour on site.

The wide range of KingFlor® profiles deliver a range of benefits for end users in various building applications. The trapezoidal geometry of KF40®, KF70®, SlimDek 210® (and KF100) enable significant savings in reinforcement as well as concrete volume savings by displacing concrete where it’s not needed, reducing cost while satisfying the most stringent floor performance requirements. The cost efficiency and program advantages achieved by KingFlor® composite decking is unrivalled compared with traditional construction practices.

And if there’s not a decking profile to suit, the DSG may even be able to design one to meet customer requirements.

Art Gallery of New South Wales, NSW

But what if the ideal product just doesn’t exist?

This was the case for Japanese architectural firm SANAA, who were tasked with designing the recently opened $344M AUD Sydney Gallery of Modern Art project.

And if there’s not a decking profile to suit, the DSG may even be able to design one to meet customer requirements.

KingFlor® SlimDek 210®

SlimDek 210®, from the Fielders KingFlor® range, is a new deep deck composite floor system. As a result of the large depth and effective cross sectional area, SlimDek 210® is capable of achieving unprecedented unpropped spans of up to 7.0 metres and propped spans up to 10.0 metres. Additional benefits of this system are realised when implemented using SlimFlor® construction, achieved by combining the SlimDek 210® profile with universal beam or universal column, or similar, with a suitable bottom flange seating plate to result in a total structural floor zone as little as 300mm.

Feature	Benefit
Unique profile	Concrete savings of up to 60% when compared to alternative formwork products
Less concrete by volume	Lower overall dead load of flooring, and reduced frame and foundation loads
Large unpropped spans	Less propping congestion and easy access to the underside of the slab
ReLokTM Features	A strong mechanical interlock with the concrete slab resulting in stronger composite strength.
SlimFlor® construction	Floor system depths as low as 280mm

RF55® - Features and Benefits

Concrete Savings
SlimDek 210® effectively saves 160mm of concrete off the overall slab depth when compared to conventional concrete slabs. This represents significant savings in concrete costs, supporting framework and foundation loads.

Material Specifications
KingFlor® SlimDek 210® decking is manufactured as standard from either G550 (550MPa Yield Strength) 1.0mm Base Metal Thickness (BMT), G500 1.2mm BMT or G450 1.5mm steel. The galvanised coating thickness for all three is Z350 (minimum 350g/m2) in accordance with AS 1397-2011.

Edge Infill/End Diaphragms

Galvanised steel edge diaphragms for the SlimDek 210® profile are installed prior to laying the sheets when using the SlimFlor® system. The end diaphragm aligns with the edge of the lower flange of the beam and aids in achieving the beams fire rating including fixings.

Laying SlimDek 210®

Place the SlimDek 210® sheets on the asymmetric beam or beam fitted with an additional bottom flange seating plate ensuring minimum 50mm bearing is achieved. In the situation where SlimDek 210® is supported by a brick or masonry wall, a separating strip such as Malthoid is recommended.
Engage subsequent sheets of SlimDek 210® by locking the larger female rib over the male rib as shown.
Once engaged, the SlimDek 210® side laps are to be stitched at 500mm with 10-16 Tek screws.

Fasteners and Locations

The decking must be positively fixed to the supporting floor beam or wall, with a diaphragm, in order to avoid movement and excessive deflection during the pouring of concrete. When fixing to a steel support structure, shot fired pins or self drilling/tapping fasteners should be used with the diaphragm. Provide one fixing at each diaphragm at every sheet plus two fasteners in the top of the SlimDek 210® sheet to the diaphragm. In the case of other support systems, such as brickwork, blockwork and concrete, the SlimDek 210® must be fixed using pre drilled holes and self tapping fixings suitable for masonry or concrete. A diaphragm must be used at all supports for the Slimdek 210® sheeting to be supported on.

Temporary Propping

If temporary propping is required [refer to the quick reference tables on the back page], they should be placed at the correct centres prior to laying the SlimDek 210® sheets. Generally timber or steel bearers with a minimum dimension of 100mm x 100mm are used on vertical props. The props should be installed so as to prevent settlement during loading by wet concrete and other construction loads. Temporary props should only be removed after the slab has reached sufficient strength [at least 75% of the specified 28 day strength]. The full design load may only be applied once the slab has achieved its 28 day strength.

Reinforcement

Place all reinforcement in strict accordance with the Structural Engineers drawings and specification. The decking becomes part of the slab reinforcement with the remainder formed by a bar in each decking trough and a mesh placed near the slab top. Normally, circular plastic spacers position the bars 70mm from the base of the trough. This distance can increase to 90 or 120mm respectively when 90 or 120 minutes fire resistance is required.

Concrete Placement

The specified grade of concrete and any chemical admixtures must be in strict accordance with AS3600 and the Structural Engineers drawings and specification. The deck must be clear of any excess dirt, grease or debris as this inhibits bonding between the deck and concrete. Ensure that concrete is applied evenly over the decking surface, as mounding of the wet concrete will cause excessive local loading.

Single Slab Span (L) on Steel Support (mm) Formwork Deflection Limit L/130

Slab Depth (mm) D	1.00 BMT No. of props per span		1.20 BMT No. of props per span		1.50 BMT No. of props per span
Slab Depth (mm) D	0	1	0	1	0	1
280	5350	9400	6200	10520	7000	N/A
290	5200	9040	6050	10240	6800	N/A
300	5050	8760	5900	10000	6650	[111680]
310	4900	8440	5600	9760	6500	11440
320	4750	8160	5400	9520	6400	[11640]
330	4650	7880	5300	9320	6250	11400
340	4550	7640	5150	9120	6150	11160
350	4450	7400	5050	8920	6050	10960
360	4350	7200	4950	8760	5900	10760
370	4250	7000	4850	8560	5800	10560
380	4150	6800	4750	8400	5700	10400
390	4050	6640	4650	8240	5650	10240
400	4000	6520	4600	8080	5550	10080

SD SS FD 001 - SlimDek 210® - Table A1

Note: Span values that are equal in both tables are governed by strength

Single Slab Span (L) on Steel Support (mm) Formwork Deflection Limit L/240

Slab Depth (mm) D	1.00 BMT No. of props per span		1.20 BMT No. of props per span		1.50 BMT No. of props per span
Slab Depth (mm) D	0	1	0	1	0	1
280	5350	99400	5800	10520	6150	N/A
290	5200	9040	5650	10240	6000	N/A
300	5050	8760	5500	10000	5900	N/A
310	4900	8440	5400	99760	5750	N/A
320	4750	8160	5250	9520	5650	[11640]
330	4650	7880	5150	9320	5550	11400
340	4550	7640	5050	9120	5450	11160
350	4450	7400	4950	8920	5350	10960
360	4350	7200	4900	8760	5250	10760
370	4250	7000	4800	8560	5150	10560
380	4150	6800	4750	8400	5100	10400
390	4050	6640	4650	8240	5000	10240
400	4000	6520	4600	8080	4950	10080

SD SS FD 002 - SlimDek 210® - Table A2

Design Assumptions

Concrete density: 24kN/m3
SlimDek 210® strength and serviceability capacities are based on full scale test results.
An additional concrete weight due to ponding of (0.7x deflection limit) 24.0kN/m3 has been considered for strength and serviceability limit states.
The spans in the above table include a minimum bearing width of 50mm on each end support.
Supports shall be effectively rigid and strong to support construction loads.
Do not cantilever SlimDek 210® over end supports.
The information contained in this publication is intended for guidance only. This information should only be use by a qualified structural engineer.

The practical limit for span to slab depth ratio is considered to be 35 for single spans, values above these limits are listed in [ ] brackets.
Side laps of SlimDek 210® need to be stitched by metal screws at 500mm intervals.
The spans in the tables are based on the condition that SlimDek 210® sheets are fixed to the end diaphagms as per Fielder’s typical details.
Construction live loads used for the formwork span tables are in accordance with AS/NZS 2327:2017 Appendix A Stage 2: 1.0kPa Workmen and equipment and; 2.5kPa Stacked materials (to be clearly stated on construction drawings) Stage 3: 1.0kPa Workmen and equipment or; 2.0kPa Mounding of concrete over an area of 1.6 x 1.6m2
The values in the tables do not consider axial loading on the sheeting.

KingFlor® KF57®

Feature	Benefit
Permanent composite formwork system	Once laid, KF57® becomes a permanent part of the slab, eliminating formwork stripping
Unique profile	Wide pans allow for clear access for in-oor services
Minimal propping	Less propping congestion and easy access to the underside of the slab
Supplied pre-cut to length, with 300mm wide cover	Quick to install
Reinforcing mesh can be laid directly on to the ribs	In many applications there is no need for mesh support stools
Closed rib profile, fully embeddd in concrete slab	Major reduction in fire reinforcement

KF57® - Features and Benefits

Single Slab Span (L) on Steel support Formwork deflection limits L/130 and L/240

	L/130				L/130				L/240				L/240
Slab Depth (mm)	0.75 BMT Number of props per span				1.0 BMT Number of props per span				0.75 BMT Number of props per span				1.0 BMT Number of props per span
Slab Depth (mm)	0	1	2	3	0	1	2	3	0	1	2	3	0	1	2	3
90	2550	[5950]	[9000]	[12050]	3100	[7800]	[10900]	[14850]	2350	[6000]	[8350]	[11400]	2600	[6600]	[9200]	[12550]
100	2450	[5800]	[8750]	[11700]	3000	[7650]	[10650]	[14450]	2300	[5850]	[8100]	[11050]	2500	[6400]	[8900]	[12150]
110	2400	[5650]	[8550]	[11400]	2900	[7450]	[10350]	[14100]	2200	[5700]	[7900]	[10750]	2450	[6250]	[8650]	[11800]
120	2350	[5500]	[8350]	[11150]	2850	[7250]	[10100]	[13800]	2150	[5550]	[7700]	[10450]	2400	[6100]	[8450]	[11500]
130	2300	[5350]	[8150]	[10900]	2800	[7050]	[9900]	[13500]	2100	[5400]	[7500]	[10200]	2300	[5950]	[8250]	[11250]
140	2250	[5250]	[7950]	[10650]	2750	[6900]	[9700]	[13200]	2050	[5300]	[7350]	[10000]	2250	[5800]	[8050]	[11000]
150	2200	5100	[7750]	[10400]	2700	[6750]	[9550]	[12950]	2000	5150	[7200]	[9800]	2200	[5700]	[7900]	[10800]
160	2150	5000	[7600]	[10150]	2650	[6600]	[9350]	[12750]	2000	5050	[7050]	[9600]	2150	5600	[7750]	[10550]
170	2100	4900	[7450]	[9950]	2600	[6450]	[9200]	[12500]	1950	4950	[6900]	[9400]	2150	5500	[7600]	[10350]
180	2100	4850	[7300]	[9800]	2550	[6350]	[9000]	[12300]	1900	4900	[6800]	[9250]	2100	5400	[7450]	[10150]
190	2050	4750	[7200]	[9650]	2500	6250	[8900]	[12100]	1900	4800	[6700]	[9100]	2050	5300	[7350]	[10000]
200	2000	4650	[7100]	[9450]	2450	6100	[8750]	[11900]	1850	4700	6550	[8950]	2050	5200	[7250]	[9850]
210	2000	4600	6950	[9300]	2450	6000	[8600]	[11750]	1800	4650	6450	[8800]	2000	5150	7100	[9700]
220	1950	4500	6850	[9150]	2400	5900	[8500]	[11600]	1800	4550	6400	[8700]	1950	5050	7000	[9550]
230	1900	4450	6750	[9000]	2350	5800	[8400]	[11400]	1750	4500	6300	[8550]	1950	5000	6900	[9450]
240	1900	4350	6600	[8850]	2350	5700	8300	[11300]	1750	4400	6200	[8450]	1900	4900	6850	[9300]
250	1850	4300	6500	8700	2300	5650	8200	[11150]	1700	4350	6100	8350	1900	4850	6750	[9200]
260	1850	4250	6400	8550	2250	5550	8100	[11000]	1700	4300	6050	8250	1850	4800	6650	9050
280	1800	4150	6200	8300	2200	5400	7900	[10800]	1650	4150	5900	8050	1800	4700	6500	8850
300	1750	4000	6050	8050	2150	5250	7750	10500	1600	4050	5750	7850	1750	4600	6350	8650
320	1700	3900	5900	7850	2100	5100	7600	10200	1600	3950	5650	7700	1750	4500	6250	8500
340	1650	3800	5750	7650	2100	4950	7450	9950	1550	3850	5550	7550	1700	4400	6100	8300
360	3750	5600	7500	7500	2050	4850	7300	9700	1550	3750	5450	7400	1650	4300	6000	8150
380	1600	3650	5500	7350	2000	4750	7100	9500	1500	3650	5350	7300	1650	4250	5900	8000
400	1550	3600	5400	7200	2000	4650	6950	9300	1500	3600	5250	7200	1650	4150	5800	7900

Notes:
1. Concrete density: 24kN/m3.
2. KF57® strength and serviceability capacities are based on full scale test results.
3. An additional concrete weight due to ponding of (0.7x deflection limit) 24.0kN/m3 has been considered for Strength and serviceability limit states.
4. The spans in the above table include a minimum bearing width of 50mm on each end support.
5. Supports shall be effectively rigid and strong to support construction loads.
6. The information contained in this publication is intended for guidance only. This information should only be use by a qualified structural engineer.
7. The practical limit for span to slab depth ratio is considered to be 35 for single spans, 40 for continuous spans. Values above these limits are listed in [ ] brackets.
8. The spans in the tables are based on the condition that KF57® sheets are fully restrained in the direction perpendicular to the sheet span.
9. Tables are based on the following maximum construction loads:
− Workmen and equipment: 1kN/m2
− Mounting of concrete: 2kN/m2 over an area of 1.6m x 1.6m and zero on the rest of the area
− Stacking of material on KF57® before placement of concrete: 1kN/m2
− The table does not consider axial loads on the product
− Allowance for weight of reinforcement as well as the effect of ponding is included

Continuous: 3 spans (L) on steel support Formwork deflection limits L/130 and L/240

	L/130				L/130				L/240				L/240
Slab Depth (mm)	0.75 BMT Number of props per span				1.0 BMT Number of props per span				0.75 BMT Number of props per span				1.0 BMT Number of props per span
Slab Depth (mm)	0	1	2	3	0	1	2	3	0	1	2	3	0	1	2	3
90	3000	[6000]	[9000]	[12050]	3600	[7400]	[11100]	[14800]	2750	[5650]	[8500]	[11350]	3050	[6250]	[9350]	[12450]
100	2900	[5850]	[8750]	[11700]	3550	[7200]	[10800]	[14400]	2700	[5500]	[8250]	[11000]	2950	[6050]	[9050]	[12100]
110	2850	[5700]	[8550]	[11400]	3450	[7000]	[10550]	[14050]	2600	[5350]	[8050]	[10700]	2850	[5850]	[8800]	[11750]
120	2750	[5550]	[8350]	[11150]	3350	[6850]	[10300]	[13700]	2550	[5200]	[7800]	[10400]	2800	[5700]	[8600]	[11450]
130	2700	[5450]	[8150]	[10900]	3300	[6700]	[10050]	[13400]	2500	5100	[7600]	[10150]	2750	[5600]	[8400]	[11200]
140	2650	5300	[8000]	[10650]	3200	[6550]	[9850]	[13150]	2450	4950	[7450]	[9950]	2650	5450	[8200]	[10950]
150	2550	5200	[7750]	[10400]	3150	[6450]	[9700]	[12900]	2350	4850	[7300]	[9750]	2600	5350	[8050]	[10750]
160	2500	5050	[7600]	[10150]	3100	6350	[9500]	[12700]	2350	4750	[7150]	[9550]	2550	5250	[7850]	[10500]
170	2450	4950	[7450]	[9950]	3050	6200	[9350]	[12450]	2300	4650	[7000]	[9350]	2500	5150	[7700]	[10300]
180	2450	4900	[7350]	[9800]	3000	6100	[9200]	[12250]	2250	4600	6900	[9200]	2450	5050	[7600]	[10150]
190	2400	4800	7200	[9650]	2950	6000	[9050]	[12050]	2200	4500	6800	[9050]	2450	4950	7450	[9950]
200	2350	4700	7100	[9450]	2900	5900	[8900]	[11850]	2200	4450	6700	[8900]	2400	4900	7350	[9800]
210	2300	4650	6950	[9300]	2850	5850	[8750]	[11700]	2150	4400	6550	[8750]	2350	4800	7250	[9650]
220	2250	4550	6850	[9150]	2800	5750	8650	[11550]	2100	4300	6500	8650	2300	4750	7150	[9500]
230	2250	4500	6750	9000	2800	5700	8550	[11400]	2050	4250	6400	8500	2300	4700	7050	[9400]
240	2200	4400	6600	8850	2750	5600	8450	[11250]	2050	4200	6300	8400	2250	4600	6950	9250
250	2150	4350	6500	8700	2700	5550	8300	[11100]	2000	4150	6200	8300	2250	4550	6850	9150
260	2100	4250	6400	8550	2700	5500	8250	[11000]	2000	4100	6150	8200	2200	4500	6750	9050
280	2050	4150	6200	8300	2600	5350	8050	10750	1950	4000	6000	8000	2150	4400	6600	8800
300	2000	4000	6050	8050	2550	5250	7850	10500	1900	3900	5850	7800	2100	4300	6450	8650
320	1950	3900	5900	7850	2500	5100	7650	10200	1850	3800	5750	7650	2050	4200	6350	8450
340	1900	3800	5750	7650	2450	4950	7450	9950	1850	3750	5600	7500	2000	4150	6200	8300
360	3750	5600	7500	7500	2400	4850	7300	9700	1800	3650	5500	7350	2000	4050	6100	8150
380	1800	3650	5500	7350	2350	4750	7100	9500	1750	3600	5450	7250	1950	4000	6000	8000
400	1800	3600	5400	7200	2300	4650	6950	9300	1750	3550	5350	7150	1900	3900	5900	7850

KF57® Frame Propping - 1200mm Frame Size Maximum Spans (mm) for Deflection L/240

Dcs (mm)	1 Frame		2 Frame
Dcs (mm)	0.75 BMT	1.00 BMT	0.75 BMT	1.00 BMT
100	[5,300]	[5,700]	[8,550]	[9,150]
110	[5,200]	[5,600]	[8,400]	[9,000]
120	[5,100]	[5,500]	[8,250]	[8,850]
130	[5,000]	[5,400]	[8,100]	[8,700]
140	4900	[5,300]	[7,950]	[8,550]
150	4800	5200	[7,800]	[8,400]
160	4700	5100	[7,650]	[8,250]
170	4700	5000	[7,650]	[8,100]
180	4600	5000	[7,500]	[8,100]
190	4500	4900	[7,350]	[7,950]
200	4500	4800	[7,350]	[7,800]
210	4400	4800	7200	[7,800]
220	4400	4700	7200	7650
230	4300	4700	7050	7650
240	4300	4600	7050	7500
250	4300	4600	7050	7500

KF57® Frame Propping - 1500mm Frame Size Maximum Spans (mm) for Deflection L/240

Dcs (mm)	1 Frame		2 Frame
Dcs (mm)	0.75 BMT	1.00 BMT	0.75 BMT	1.00 BMT
100	[5,600]	[6,000]	[9,150]	[9,750]
110	[5,500]	[5,900]	[9,000]	[9,600]
120	[5,400]	[5,800]	[8,850]	[9,450]
130	[5,300]	[5,700]	[8,700]	[9,300]
140	[5,200]	[5,600]	[8,550]	[9,150]
150	5100	[5,500]	[8,400]	[9,000]
160	5000	5400	[8,250]	[8,850]
170	5000	5300	[8,250]	[8,700]
180	4900	5300	[8,100]	[8,700]
190	4800	5200	[7,950]	[8,550]
200	4800	5100	[7,950]	[8,400]
210	4700	5100	[7,800]	[8,400]
220	4700	5000	[7,800]	[8,250]
230	4600	5000	7650	[8,250]
240	4600	4900	7650	8100
250	4600	4900	7650	8100

Temporary Propping
If temporary propping is required (refer to the temporary propping tables), props should be placed at the correct centres prior to laying the KF57® sheets. Generally, timber or steel bearers with a minimum dimension of 75mm x 75mm are used on vertical props. The props should be installed so as to prevent settlement during loading by wet concrete and other construction loads. Wide ply strips, of 300mm wide, may be positioned above the header bearers to assist in dispersing the load and minimise any local deformation of the decking due to the headers. Temporary props should only be removed after the slab has reached sufficient strength (at least 75% of the specified 28-day strength). The full design load may only be applied once the slab has achieved 28-day strength.

Edge-form
Galvanised steel edge-forms can be used for the retention of wet concrete to the correct level at the decked floor perimeters. KF57® edge-form is usually shot-fired to the steel support structure or to the KF57® deck and the top of the edge-form is connected back to the decking with restraint straps at approximately 600mm centres using either pop-rivets or self-drilling screws.

Fasteners and Locations
The decking must be secured to the supporting structure in order to avoid movement and excessive deflection during the pouring of concrete. When fixing to a steel support structure, shot fired pins or self-drilling/tapping fasteners should be used. Provide one fastener in each pan at every support. In the case of other support systems, such as brickwork, block work and concrete, the KF57® sheets must be temporarily held in place against wind and other effects until the concrete is poured.

Reinforcement
Place all reinforcement in strict accordance with the structural engineer’s drawings and specification.

Concrete Placement
The specified grade of concrete and any chemical admixtures must be in strict accordance with AS 3600:2018 and the structural engineer’s drawings and specification. The deck must be clear of any excess dirt, grease or debris as this inhibits bonding between the deck and concrete. Ensure that concrete is applied evenly over the decking surface, as mounding of the wet concrete will cause excessive local loading.

Laying KF57®
1. Place the KF57® sheet over the supports ensuring a minimum end bearing of 50mm. If supporting on a brick or masonry wall, provide a separating strip such as malthoid.
2. Engage subsequent sheets of KF57® by locking the larger female rib over the male rib as shown in the diagram below.

KingFlor® KF57®

Feature	Benefit
Permanent composite formwork system	Once laid, KF57® becomes a permanent part of the slab, eliminating formwork stripping
Unique profile	Wide pans allow for clear access for in-oor services
Minimal propping	Less propping congestion and easy access to the underside of the slab
Supplied pre-cut to length, with 300mm wide cover	Quick to install
Reinforcing mesh can be laid directly on to the ribs	In many applications there is no need for mesh support stools
Closed rib profile, fully embeddd in concrete slab	Major reduction in fire reinforcement

KF57® - Features and Benefits

Single Slab Span (L) on Steel support Formwork deflection limits L/130 and L/240

	L/130				L/130				L/240				L/240
Slab Depth (mm)	0.75 BMT Number of props per span				1.0 BMT Number of props per span				0.75 BMT Number of props per span				1.0 BMT Number of props per span
Slab Depth (mm)	0	1	2	3	0	1	2	3	0	1	2	3	0	1	2	3
90	2550	[5950]	[9000]	[12050]	3100	[7800]	[10900]	[14850]	2350	[6000]	[8350]	[11400]	2600	[6600]	[9200]	[12550]
100	2450	[5800]	[8750]	[11700]	3000	[7650]	[10650]	[14450]	2300	[5850]	[8100]	[11050]	2500	[6400]	[8900]	[12150]
110	2400	[5650]	[8550]	[11400]	2900	[7450]	[10350]	[14100]	2200	[5700]	[7900]	[10750]	2450	[6250]	[8650]	[11800]
120	2350	[5500]	[8350]	[11150]	2850	[7250]	[10100]	[13800]	2150	[5550]	[7700]	[10450]	2400	[6100]	[8450]	[11500]
130	2300	[5350]	[8150]	[10900]	2800	[7050]	[9900]	[13500]	2100	[5400]	[7500]	[10200]	2300	[5950]	[8250]	[11250]
140	2250	[5250]	[7950]	[10650]	2750	[6900]	[9700]	[13200]	2050	[5300]	[7350]	[10000]	2250	[5800]	[8050]	[11000]
150	2200	5100	[7750]	[10400]	2700	[6750]	[9550]	[12950]	2000	5150	[7200]	[9800]	2200	[5700]	[7900]	[10800]
160	2150	5000	[7600]	[10150]	2650	[6600]	[9350]	[12750]	2000	5050	[7050]	[9600]	2150	5600	[7750]	[10550]
170	2100	4900	[7450]	[9950]	2600	[6450]	[9200]	[12500]	1950	4950	[6900]	[9400]	2150	5500	[7600]	[10350]
180	2100	4850	[7300]	[9800]	2550	[6350]	[9000]	[12300]	1900	4900	[6800]	[9250]	2100	5400	[7450]	[10150]
190	2050	4750	[7200]	[9650]	2500	6250	[8900]	[12100]	1900	4800	[6700]	[9100]	2050	5300	[7350]	[10000]
200	2000	4650	[7100]	[9450]	2450	6100	[8750]	[11900]	1850	4700	6550	[8950]	2050	5200	[7250]	[9850]
210	2000	4600	6950	[9300]	2450	6000	[8600]	[11750]	1800	4650	6450	[8800]	2000	5150	7100	[9700]
220	1950	4500	6850	[9150]	2400	5900	[8500]	[11600]	1800	4550	6400	[8700]	1950	5050	7000	[9550]
230	1900	4450	6750	[9000]	2350	5800	[8400]	[11400]	1750	4500	6300	[8550]	1950	5000	6900	[9450]
240	1900	4350	6600	[8850]	2350	5700	8300	[11300]	1750	4400	6200	[8450]	1900	4900	6850	[9300]
250	1850	4300	6500	8700	2300	5650	8200	[11150]	1700	4350	6100	8350	1900	4850	6750	[9200]
260	1850	4250	6400	8550	2250	5550	8100	[11000]	1700	4300	6050	8250	1850	4800	6650	9050
280	1800	4150	6200	8300	2200	5400	7900	[10800]	1650	4150	5900	8050	1800	4700	6500	8850
300	1750	4000	6050	8050	2150	5250	7750	10500	1600	4050	5750	7850	1750	4600	6350	8650
320	1700	3900	5900	7850	2100	5100	7600	10200	1600	3950	5650	7700	1750	4500	6250	8500
340	1650	3800	5750	7650	2100	4950	7450	9950	1550	3850	5550	7550	1700	4400	6100	8300
360	3750	5600	7500	7500	2050	4850	7300	9700	1550	3750	5450	7400	1650	4300	6000	8150
380	1600	3650	5500	7350	2000	4750	7100	9500	1500	3650	5350	7300	1650	4250	5900	8000
400	1550	3600	5400	7200	2000	4650	6950	9300	1500	3600	5250	7200	1650	4150	5800	7900

Continuous: 3 spans (L) on steel support Formwork deflection limits L/130 and L/240

	L/130				L/130				L/240				L/240
Slab Depth (mm)	0.75 BMT Number of props per span				1.0 BMT Number of props per span				0.75 BMT Number of props per span				1.0 BMT Number of props per span
Slab Depth (mm)	0	1	2	3	0	1	2	3	0	1	2	3	0	1	2	3
90	3000	[6000]	[9000]	[12050]	3600	[7400]	[11100]	[14800]	2750	[5650]	[8500]	[11350]	3050	[6250]	[9350]	[12450]
100	2900	[5850]	[8750]	[11700]	3550	[7200]	[10800]	[14400]	2700	[5500]	[8250]	[11000]	2950	[6050]	[9050]	[12100]
110	2850	[5700]	[8550]	[11400]	3450	[7000]	[10550]	[14050]	2600	[5350]	[8050]	[10700]	2850	[5850]	[8800]	[11750]
120	2750	[5550]	[8350]	[11150]	3350	[6850]	[10300]	[13700]	2550	[5200]	[7800]	[10400]	2800	[5700]	[8600]	[11450]
130	2700	[5450]	[8150]	[10900]	3300	[6700]	[10050]	[13400]	2500	5100	[7600]	[10150]	2750	[5600]	[8400]	[11200]
140	2650	5300	[8000]	[10650]	3200	[6550]	[9850]	[13150]	2450	4950	[7450]	[9950]	2650	5450	[8200]	[10950]
150	2550	5200	[7750]	[10400]	3150	[6450]	[9700]	[12900]	2350	4850	[7300]	[9750]	2600	5350	[8050]	[10750]
160	2500	5050	[7600]	[10150]	3100	6350	[9500]	[12700]	2350	4750	[7150]	[9550]	2550	5250	[7850]	[10500]
170	2450	4950	[7450]	[9950]	3050	6200	[9350]	[12450]	2300	4650	[7000]	[9350]	2500	5150	[7700]	[10300]
180	2450	4900	[7350]	[9800]	3000	6100	[9200]	[12250]	2250	4600	6900	[9200]	2450	5050	[7600]	[10150]
190	2400	4800	7200	[9650]	2950	6000	[9050]	[12050]	2200	4500	6800	[9050]	2450	4950	7450	[9950]
200	2350	4700	7100	[9450]	2900	5900	[8900]	[11850]	2200	4450	6700	[8900]	2400	4900	7350	[9800]
210	2300	4650	6950	[9300]	2850	5850	[8750]	[11700]	2150	4400	6550	[8750]	2350	4800	7250	[9650]
220	2250	4550	6850	[9150]	2800	5750	8650	[11550]	2100	4300	6500	8650	2300	4750	7150	[9500]
230	2250	4500	6750	9000	2800	5700	8550	[11400]	2050	4250	6400	8500	2300	4700	7050	[9400]
240	2200	4400	6600	8850	2750	5600	8450	[11250]	2050	4200	6300	8400	2250	4600	6950	9250
250	2150	4350	6500	8700	2700	5550	8300	[11100]	2000	4150	6200	8300	2250	4550	6850	9150
260	2100	4250	6400	8550	2700	5500	8250	[11000]	2000	4100	6150	8200	2200	4500	6750	9050
280	2050	4150	6200	8300	2600	5350	8050	10750	1950	4000	6000	8000	2150	4400	6600	8800
300	2000	4000	6050	8050	2550	5250	7850	10500	1900	3900	5850	7800	2100	4300	6450	8650
320	1950	3900	5900	7850	2500	5100	7650	10200	1850	3800	5750	7650	2050	4200	6350	8450
340	1900	3800	5750	7650	2450	4950	7450	9950	1850	3750	5600	7500	2000	4150	6200	8300
360	3750	5600	7500	7500	2400	4850	7300	9700	1800	3650	5500	7350	2000	4050	6100	8150
380	1800	3650	5500	7350	2350	4750	7100	9500	1750	3600	5450	7250	1950	4000	6000	8000
400	1800	3600	5400	7200	2300	4650	6950	9300	1750	3550	5350	7150	1900	3900	5900	7850

KF57® Frame Propping - 1200mm Frame Size Maximum Spans (mm) for Deflection L/240

Dcs (mm)	1 Frame		2 Frame
Dcs (mm)	0.75 BMT	1.00 BMT	0.75 BMT	1.00 BMT
100	[5,300]	[5,700]	[8,550]	[9,150]
110	[5,200]	[5,600]	[8,400]	[9,000]
120	[5,100]	[5,500]	[8,250]	[8,850]
130	[5,000]	[5,400]	[8,100]	[8,700]
140	4900	[5,300]	[7,950]	[8,550]
150	4800	5200	[7,800]	[8,400]
160	4700	5100	[7,650]	[8,250]
170	4700	5000	[7,650]	[8,100]
180	4600	5000	[7,500]	[8,100]
190	4500	4900	[7,350]	[7,950]
200	4500	4800	[7,350]	[7,800]
210	4400	4800	7200	[7,800]
220	4400	4700	7200	7650
230	4300	4700	7050	7650
240	4300	4600	7050	7500
250	4300	4600	7050	7500

KF57® Frame Propping - 1500mm Frame Size Maximum Spans (mm) for Deflection L/240

Dcs (mm)	1 Frame		2 Frame
Dcs (mm)	0.75 BMT	1.00 BMT	0.75 BMT	1.00 BMT
100	[5,600]	[6,000]	[9,150]	[9,750]
110	[5,500]	[5,900]	[9,000]	[9,600]
120	[5,400]	[5,800]	[8,850]	[9,450]
130	[5,300]	[5,700]	[8,700]	[9,300]
140	[5,200]	[5,600]	[8,550]	[9,150]
150	5100	[5,500]	[8,400]	[9,000]
160	5000	5400	[8,250]	[8,850]
170	5000	5300	[8,250]	[8,700]
180	4900	5300	[8,100]	[8,700]
190	4800	5200	[7,950]	[8,550]
200	4800	5100	[7,950]	[8,400]
210	4700	5100	[7,800]	[8,400]
220	4700	5000	[7,800]	[8,250]
230	4600	5000	7650	[8,250]
240	4600	4900	7650	8100
250	4600	4900	7650	8100

Reinforcement
Place all reinforcement in strict accordance with the structural engineer’s drawings and specification.

KingFlor® RF55®

Feature	Benefit
Unique profile	Concrete savings of up to 60% when compared to alternative formwork products
Less concrete by volume	Lower overall dead load of flooring, and reduced frame and foundation loads
Large unpropped spans	Less propping congestion and easy access to the underside of the slab
ReLokTM Features	A strong mechanical interlock with the concrete slab resulting in stronger composite strength.
SlimFlor® construction	Floor system depths as low as 280mm

RF55® - Features and Benefits

RF55® Material Specifications

RF55® is manufactured from G550 (550 MPa Yield Stress) steel with a Base Metal Thickness (BMT) of 0.60mm, 0.75mm, and 1.00mm. The thicknesses of 0.90mm and 1.20mm BMT are also available on request. The galvanised coating thickness is a Z350 (350 g/m2) in accordance with AS 1397:2001. RF55® is available in two sheet widths. The traditional 600mm wide cover, 3-PAN, and the easy to handle, 400mm wide cover, 2-PAN. The RF55®-2P is equivalent in all aspects technically to the RF55®-3P. Similarly, the recommendations for RF55® in construction also apply to both RF55®-3P and RF55®-2P. Please check with your local branch as to which version applies in your state.

RF55® Formwork/Slab Span Tables Continuous Span

Slab Depth (mm)	0.6 BMT Number of props per span				0.75 BMT Number of props per span				0.9 BMT Number of props per span				1.0 BMT Number of props per span
Slab Depth (mm)	0	1	2	3	0	1	2	3	0	1	2	3	0	1	2	3
90	2400	(5400)	(8150)	(10850)	3350	(6800)	(10200)	(13600)	(3700)	(7500)	(11300)	(15050)	(3800)	(7800)	(11700)	(15600)
100	2350	(5250)	(7900)	(10550)	3250	(6600)	(9900)	(13200)	3600	(7300)	(11000)	(14650)	3700	(7600)	(11400)	(15200)
110	2250	(5150)	(7700)	(10300)	3200	(6400)	(9650)	(12850)	3500	(7150)	(10700)	(14300)	3650	(7400)	(11100)	(14800)
120	2200	(5000)	(7500)	(10000)	3100	(6250)	(9350)	(12500)	3400	(6950)	(104500	(13950)	3550	(7200)	(10850)	(14450)
130	2150	(4900)	(7350)	(9800)	3000	(6100)	(9150)	(12200)	3350	(6800)	(10200)	(13600)	3450	(7050)	(10600)	(14150)
140	2100	4750	(7150)	(9550)	2950	(5950)	(8900)	(11900)	3250	(6650)	(10000)	(13350)	3400	(6900)	(10400)	(13850)
150	2050	4650	(7000)	(9350)	2900	5800	(8700)	(11650)	3200	(6500)	(9800)	(13050)	3300	(6800)	(10150)	(13550)
160	2050	4550	(6850)	(9150)	2850	5700	(8550)	(11400)	3150	6400	(9650)	(12850)	3250	(6650)	(10000)	(13300)
170	2000	4500	(6750)	(9000)	2750	5600	(8400)	(11200)	3100	6300	(9450)	(12600)	3200	6550	(9800)	(13100)
180	1950	4400	(6600)	(8800)	2700	5500	(8250)	(11000)	3050	6200	(9300)	(12400)	3150	6450	(9650)	(12900)
190	1900	4300	(6600)	(8800)	2650	5350	(8050)	(10750)	3000	6100	(9150)	(12200)	3100	6350	(9500)	(12700)
200	1900	4250	6350	(8500)	2600	5250	7900	(10550)	2950	6000	(9000)	(12000)	3050	6250	(9350)	(12500)
210	1850	4150	6250	(8350)	2550	5150	7750	(10350)	2900	5900	(8850)	(11800)	3000	6150	(9200)	(12300)
220	1800	4100	6150	(8200)	2500	5100	7650	(10200)	2850	5800	8750	(11650)	2950	6050	(9050)	(12100)
230	1800	4000	6050	(8050)	2500	5000	7500	(10000)	2800	5750	8600	(11500)	2900	5950	8950	(11950)
240	1750	3950	5950	7950	2450	4900	7400	(9850)	2750	5650	8500	(11350)	2900	5900	8850	(11800)
250	1750	3900	5850	7800	2400	4850	7250	9700	2750	5600	8400	(11200)	2850	5800	8700	(11650)
260	1700	3850	5800	7700	2350	4750	7150	9550	2700	5550	8300	(11100)	2800	5750	8600	(11500)
280	1650	3750	5600	7500	2300	4600	6950	9250	2650	5400	8100	10800	2750	5600	8450	(11250)
300	1650	3650	5500	7350	2250	4500	6750	9000	2550	5200	7850	10450	2650	5500	8250	11000
320	1600	3600	5400	7200	2150	4350	6550	8750	2500	5050	7600	10150	2600	5350	8000	10700
340	1550	3500	5250	7000	2100	4250	6400	8500	2450	4950	7400	9900	2550	5200	7800	10450
360	1500	3400	5150	6850	2050	4150	6200	8300	2400	4800	7250	9650	2500	5100	7650	10200
380	1550	3350	5000	6700	2000	4050	6050	8100	2350	4700	7050	9450	2400	4950	7450	9950
400	1450	3250	4900	6500	1950	3950	5950	7900	2300	4600	6900	9250	2350	4850	7300	9750

Notes:
1. Concrete density: 24kN/m3.
2. RF55® strength and serviceability capacities are based on full scale test results.
3. An additional concrete weight due to ponding of (0.7x deflection limit) 24.0kN/m3
has been considered for Strength and serviceability limit states.
4. The spans in the above table include a minimum bearing width of 50mm on each end support.
5. Supports shall be effectively rigid and strong to support construction loads.
6. The information contained in this publication is intended for guidance only.
This information should only be use by a qualified structural engineer.
7. The practical limit for span to slab depth ratio is considered to be 35 for single spans, 40 for continuous spans. Values above these limits are listed in [ ] brackets.
8. The spans in the tables are based on the condition that RF55® sheets are fully restrained
in the direction perpendicular to the sheet span.
9. Tables are based on the following maximum construction loads: − Workmen and equipment: 1kN/m2
− Mounting of concrete: 2kN/m2 over an area of 1.6m x 1.6m and zero on the rest of the area
− Stacking of material on RF55® before placement of concrete: 1kN/m2
− The table does not consider axial loads on the product
− Allowance for weight of reinforcement as well as the effect of ponding is included

Single Slab Span (L) on Steel support Formwork deflection limits L/130

Slab Depth (mm)	0.6 BMT Number of props per span				0.75 BMT Number of props per span				0.9 BMT Number of props per span				1.0 BMT Number of props per span
Slab Depth (mm)	0	1	2	3	0	1	2	3	0	1	2	3	0	1	2	3
90	2400	(5400)	(8150)	(10850)	2700	(6700)	(10200)	(13600)	2850	(7900)	(11100)	(15100)	2950	(8150)	(11550)	(15650)
100	2350	(5250)	(7900)	(10550)	2600	(6500)	(9900)	(13200)	2800	(7650)	(10800)	(14700)	2850	(8000)	(11200)	(15250)
110	2250	(5150)	(7700)	(10300)	2550	(6350)	(9600)	(12850)	2700	(7450)	(10550)	(14350)	2800	(7850)	(10900)	(14850)
120	2200	(5000)	(7500)	(10000)	2500	(6200)	(9350)	(12500)	2650	(7250)	(10300)	(14000)	2750	(7650)	(10700)	(14550)
130	2150	(4900)	(7350)	(9800)	2450	(6000)	(9150)	(12200)	2550	(7050)	(10050)	(13700)	2650	(7450)	(10450)	(14200)
140	2100	4750	(7150)	(9550)	2400	(5900)	(8900)	(11900)	2500	(6900)	(9850)	(13400)	2600	(7250)	(10200)	(13900)
150	2050	4650	(7000)	(9350)	2350	(5750)	(8700)	(11650)	2450	(6700)	(9650)	(13100)	2550	(7100)	(10000)	(13650)
160	2050	4550	(6850)	(9150)	2300	(5650)	(8500)	(11400)	2400	(6600)	(9450)	(12900)	2500	(6950)	(9800)	(13400)
170	2000	4500	(6750)	(9000)	2250	5550	(8400)	(11200)	2400	(6450)	(9300)	(12650)	2450	(6800)	(9650)	(13150)
180	1950	4400	(6600)	(8800)	2200	5400	(8200)	(11000)	2350	(6350)	(9150)	(12450)	2400	(6650)	(9500)	(12950)
190	1900	4300	6500	(8650)	2150	5300	(8050)	(10750)	2300	6200	(9000)	(12250)	2400	6650	(9350)	(12750)
200	1900	4250	6350	(8500)	2100	5200	(7900)	(10600)	2250	6100	(8850)	(12050)	2350	6450	(9200)	(12550)
210	1850	4150	6250	(8350)	2100	5100	(7750)	(10350)	2200	5950	(8700)	(11850)	2300	6300	(9050)	(12350)
220	1800	4100	6150	(8200)	2050	5050	7600	(10200)	2200	5850	(8600)	(11700)	2250	6200	(8950)	(12200)
230	1800	4000	6050	(8050)	2050	4950	7500	(10000)	2150	5750	(8500)	(11550)	2250	6100	(8800)	(12000)
240	1750	3950	5950	7950	2000	4850	7400	(9850)	2150	5700	8350	(11400)	2200	6000	(8700)	(11850)
250	1750	3900	5850	7800	2000	4800	7250	(9700)	2100	5600	8250	(11250)	2150	5900	8600	(11700)
260	1700	3850	5800	7700	1950	4750	7150	(9550)	2050	5550	8150	(11150)	2150	5800	8500	(11550)
280	1650	3750	5600	7500	1900	4600	6950	9250	2050	5350	8000	(10800)	2100	5650	8300	(11300)
300	1650	3650	5500	7350	1800	4500	6750	9000	2000	5200	7750	10450	2050	5500	8050	(11050)
320	1600	3600	5400	7200	1750	4350	6550	8750	1950	5050	7550	10150	2000	5350	7850	10750
340	1550	3500	5250	7000	1700	4250	6400	8500	1900	4950	7350	9900	2000	5250	7650	10500
360	1550	3400	5150	6850	1700	4150	6200	8300	1850	4800	7200	9650	1950	5100	7500	10200
380	1500	3350	5000	6700	1650	4050	6050	8100	1800	4700	7050	9450	1850	5000	7300	10000
400	1450	3250	4900	6500	1600	3950	5950	7900	1750	4600	6900	9250	1850	4850	7150	9750

Single Slab Span (L) on Steel support Formwork deflection limits L/130

Slab Depth (mm)	0.6 BMT Number of props per span				0.75 BMT Number of props per span				0.9 BMT Number of props per span				1.0 BMT Number of props per span
Slab Depth (mm)	0	1	2	3	0	1	2	3	0	1	2	3	0	1	2	3
90	2400	(5400)	(8150)	(10850)	2700	(6700)	(10200)	(13600)	2850	(7900)	(11100)	(15100)	2950	(8150)	(11550)	(15650)
100	2350	(5250)	(7900)	(10550)	2600	(6500)	(9900)	(13200)	2800	(7650)	(10800)	(14700)	2850	(8000)	(11200)	(15250)
110	2250	(5150)	(7700)	(10300)	2550	(6350)	(9600)	(12850)	2700	(7450)	(10550)	(14350)	2800	(7850)	(10900)	(14850)
120	2200	(5000)	(7500)	(10000)	2500	(6200)	(9350)	(12500)	2650	(7250)	(10300)	(14000)	2750	(7650)	(10700)	(14550)
130	2150	(4900)	(7350)	(9800)	2450	(6000)	(9150)	(12200)	2550	(7050)	(10050)	(13700)	2650	(7450)	(10450)	(14200)
140	2100	4750	(7150)	(9550)	2400	(5900)	(8900)	(11900)	2500	(6900)	(9850)	(13400)	2600	(7250)	(10200)	(13900)
150	2050	4650	(7000)	(9350)	2350	(5750)	(8700)	(11650)	2450	(6700)	(9650)	(13100)	2550	(7100)	(10000)	(13650)
160	2050	4550	(6850)	(9150)	2300	(5650)	(8500)	(11400)	2400	(6600)	(9450)	(12900)	2500	(6950)	(9800)	(13400)
170	2000	4500	(6750)	(9000)	2250	5550	(8400)	(11200)	2400	(6450)	(9300)	(12650)	2450	(6800)	(9650)	(13150)
180	1950	4400	(6600)	(8800)	2200	5400	(8200)	(11000)	2350	(6350)	(9150)	(12450)	2400	(6650)	(9500)	(12950)
190	1900	4300	6500	(8650)	2150	5300	(8050)	(10750)	2300	6200	(9000)	(12250)	2400	6650	(9350)	(12750)
200	1900	4250	6350	(8500)	2100	5200	(7900)	(10600)	2250	6100	(8850)	(12050)	2350	6450	(9200)	(12550)
210	1850	4150	6250	(8350)	2100	5100	(7750)	(10350)	2200	5950	(8700)	(11850)	2300	6300	(9050)	(12350)
220	1800	4100	6150	(8200)	2050	5050	7600	(10200)	2200	5850	(8600)	(11700)	2250	6200	(8950)	(12200)
230	1800	4000	6050	(8050)	2050	4950	7500	(10000)	2150	5750	(8500)	(11550)	2250	6100	(8800)	(12000)
240	1750	3950	5950	7950	2000	4850	7400	(9850)	2150	5700	8350	(11400)	2200	6000	(8700)	(11850)
250	1750	3900	5850	7800	2000	4800	7250	(9700)	2100	5600	8250	(11250)	2150	5900	8600	(11700)
260	1700	3850	5800	7700	1950	4750	7150	(9550)	2050	5550	8150	(11150)	2150	5800	8500	(11550)
280	1650	3750	5600	7500	1900	4600	6950	9250	2050	5350	8000	(10800)	2100	5650	8300	(11300)
300	1650	3650	5500	7350	1800	4500	6750	9000	2000	5200	7750	10450	2050	5500	8050	(11050)
320	1600	3600	5400	7200	1750	4350	6550	8750	1950	5050	7550	10150	2000	5350	7850	10750
340	1550	3500	5250	7000	1700	4250	6400	8500	1900	4950	7350	9900	2000	5250	7650	10500
360	1550	3400	5150	6850	1700	4150	6200	8300	1850	4800	7200	9650	1950	5100	7500	10200
380	1500	3350	5000	6700	1650	4050	6050	8100	1800	4700	7050	9450	1850	5000	7300	10000
400	1450	3250	4900	6500	1600	3950	5950	7900	1750	4600	6900	9250	1850	4850	7150	9750

Continuous : 3 Spans (L) on steel support - Formwork deflection limits L/240

Slab Depth (mm)	0.6 BMT Number of props per span				0.75 BMT Number of props per span				0.9 BMT Number of props per span				1.0 BMT Number of props per span
Slab Depth (mm)	0	1	2	3	0	1	2	3	0	1	2	3	0	1	2	3
90	2650	(5450)	(8200)	(10900)	2900	(5950)	[8950]	[11900]	3100	[6350]	[9550]	[12750]	3250	[6600]	[9900]	[13200]
100	2600	(5250)	(7900)	(10550)	2800	(5750)	[8650]	[11550]	3000	[6150]	[9250]	[12350]	3150	[6400]	[9600]	[12800]
110	2500	(5100)	(7650)	(10250)	2750	(5600)	[8400]	[11200]	2950	[5950]	[8950]	[11950]	3050	[6200]	[9350]	[12450]
120	2450	(4950)	(7450)	(9950)	2650	(5450)	[8200]	[10900]	2850	[5800]	[8750]	[11650]	2950	[6050]	[9050]	[12100]
130	2350	4850	(7250)	(9700)	2600	(5300)	[8000]	[10650]	2800	[5650]	[8500]	[11350]	2900	[5900]	[8850]	[11800]
140	2250	4650	(7000)	(9350)	2550	5200	[7800]	[10400]	2700	5550	[8350]	[11100]	2800	[5750]	[8650]	[11550]
150	2200	4500	(6800)	(9050)	2500	5050	[7600]	[10150]	2650	5450	[8150]	[10900]	2750	5650	[8500]	[11300]
160	2150	4400	(6600)	(8800)	2400	4950	[7450]	[9950]	2600	5300	[8000]	[10650]	2700	5500	[8300]	[11050]
170	2050	4250	6400	(8550)	2350	4850	[7300]	[9750]	2550	5200	[7800]	[10400]	2600	5400	[8100]	[10800]
180	2000	4150	6200	(8300)	2300	4750	7100	[9500]	2450	5050	[7600]	[10150]	2550	5250	[7900]	[10550]
190	1950	4050	6050	(8100)	2250	4650	6950	[9250]	2400	4950	7450	[9900]	2500	5150	[7750]	[10300]
200	1900	3950	5900	7900	2200	4500	6800	[9050]	2350	4850	7300	[9700]	2450	5050	7550	[10100]
210	1850	3850	5750	7700	2150	4450	6650	[8850]	2300	4750	7150	[9500]	2400	4950	7400	[9900]
220	1850	3750	5650	7550	2100	4350	6500	8700	2250	4650	7000	[9350]	2350	4850	7300	[9750]
230	1800	3700	5500	7400	2050	4250	6400	8500	2250	4600	6850	9150	2300	4750	7150	[9550]
240	1750	3600	5450	7250	2000	4150	6250	8350	2200	4500	6750	9000	2300	4700	7050	9400
250	1700	3550	5350	7100	2000	4100	6150	8200	2150	4400	6650	8850	2250	4600	6900	9250
260	1700	3500	5250	7100	1950	4000	6050	8050	2100	4350	6550	8700	2200	4550	6800	9100
280	1600	3350	5050	6750	1900	3900	5850	7800	2050	4200	6350	8450	2150	4400	6600	8850
300	1550	3250	4850	6500	1850	3750	5650	7550	2000	4100	6150	8200	2100	4300	6450	8600
320	1500	3150	4700	6300	1800	3650	5500	7350	1950	4000	6000	8000	2050	4150	6250	8350
340	1450	3050	4550	6100	1750	3600	5350	7200	1900	3900	5850	7800	2000	4050	6100	8150
360	1450	2950	4450	5950	1700	3500	5250	7000	1850	3800	5700	7600	1950	3950	5950	7950
380	1400	2900	4350	5800	1650	3400	5100	6800	1800	3700	5550	7450	1900	3900	5850	7800
400	1350	2850	4300	5750	1600	3300	5000	6650	1750	3650	5450	7300	1850	3800	5700	7650

Notes:
Concrete density: 24kN/m3.
2. RF55® strength and serviceability capacities are based on full scale test results.
3. An additional concrete weight due to ponding of (0.7x deflection limit) 24.0kN/m3
has been considered for Strength and serviceability limit states.
4. The spans in the above table include a minimum bearing width of 50mm on each end support.
5. Supports shall be effectively rigid and strong to support construction loads.
6. The information contained in this publication is intended for guidance only.
This information should only be use by a qualified structural engineer.
7. The practical limit for span to slab depth ratio is considered to be 35 for single spans, 40 for continuous spans. Values above these limits are listed in [ ] brackets.
8. The spans in the tables are based on the condition that RF55® sheets are fully restrained
in the direction perpendicular to the sheet span.
9. Tables are based on the following maximum construction loads: − Workmen and equipment: 1kN/m2
− Mounting of concrete: 2kN/m2 over an area of 1.6m x 1.6m and zero on the rest of the area
− Stacking of material on RF55® before placement of concrete: 1kN/m2
− The table does not consider axial loads on the product
− Allowance for weight of reinforcement as well as the effect of ponding is included

Temporary Propping
If temporary propping is required (refer to the temporary propping tables), props should be placed at the correct centres prior to laying the RF55® sheets. Generally, timber or steel bearers with a minimum dimension of 75mm x 75mm are used on vertical props. The props should be installed so as to prevent settlement during loading by wet concrete and other construction loads. 300mm wide ply strips, may be positioned above the header bearers to assist in dispersing the load and minimise any local deformation of the decking due to the headers. Temporary props should only be removed after the slab has reached sufficient strength (at least 75% of the specified 28-day strength). The full design load may only be applied once the slab has achieved 28-day strength.

Fasteners and Locations
The decking must be positively fixed to the supporting structure in order to avoid movement and excessive deflection during the pouring of concrete. When fixing to a steel support structure, shot fired pins or self- drilling/tapping fasteners should be used. Provide one fastener in each pan at every support. In the case of other support systems, such as brickwork, block work and concrete, the RF55® sheets must be temporarily held in place against wind and other effects until the concrete is poured.

Edge-form
Galvanised steel edge-forms can be used for the retention of wet concrete to the correct level at the decked floor perimeters. Edge-form is usually shot-fired to the steel support structure or to the RF55® deck and the top of the trim is connected back to the decking with restraint straps at approximately 600mm centres using either pop-rivets or self-drilling screws.

Reinforcement
Place all reinforcement in strict accordance with the structural engineer’s drawings and specification.

Concrete placement
The specified grade of concrete and any chemical admixtures must be in strict accordance with AS 3600:2018 and the structural engineer’s drawings and specification. The deck must be clear of any excess dirt, grease or debris as this inhibits bonding between the deck and concrete. Ensure that concrete is applied evenly over the decking surface, as mounding of the wet concrete will cause excessive local loading.

Laying RF55®
1. Place the RF55® sheet over the supports ensuring a minimum end bearing of 50mm. If supporting on a brick or masonry wall, provide a separating strip such as malthoid.

2. Tap the female rib with a hammer at a 45° angle to lock it into place.

KingFlor® Designer Suite

The KingFlor® Designer Suite software produces designs in accordance with the following versions of Australian Standards, as applicable at the time of the software’s development in 2017:

AS 3600:2009 - Concrete Structures
AS/NZS 2327:2017 - Composite Structures – Composite steel-concrete construction in buildings

Designs produced using the KingFlor® Designer Suite software do not comply with subsequent revisions to these Australian Standards (including AS/NZS 2327:2017 Amd 1: 2020 and AS 3600:2018 Amd 1 & 2: 2021) or any Australian Standards released after 2017.

To support engineers with checking their design’s compliance with current Australian Standards, Fielders has prepared the KingFlor® Formwork and Composite Slab Design Guide – Using RAPT Software, which outlines a practical workflow using relevant Fielders technical literature, together with a third-party analysis and design software known as “RAPT”. The guide is accessible here: [Fielders KingFlor formwork and Composite Slab Design Guide using RAPT Software].

To avoid doubt, KingFlor® flooring and decking products are manufactured and tested to comply with applicable laws, regulations and Australian Standards, as detailed in Fielders’ KingFlor® National Construction Code Compliance Bulletin (Jan 2024), accessible here: [Fielders NCC Compliance Bulletin Kingflor ].

Features to the KingSlab software include:

Ability to design continuous slabs with the entire range of Fielders KingFlor® range, including SlimDek 210® with the flexibility to suit your project needs.
Full 3D graphic display of the reinforced composite slab
Optimisation of reinforcement design by utilising the composite action of the steel decking profiles
Fire design assessment of composite slabs
Ability to design the formwork stage of construction

Features to the KingBeam software include:

Ability to design primary or secondary composite downstand beams including shear studs with any KingFlor® profile bearing on the top flange
Ability to design SlimFlor® using fully customisable 3 Plate Asymmetric Steel Beams (ASB) with SlimDek 210® bearing on the bottom flange
Design SlimFlor® beams using hot rolled UC sections with welded bottom plate

About KingFlor®

KingFlor® Designer Suite

The KingFlor® Designer Suite software produces designs in accordance with the following versions of Australian Standards, as applicable at the time of the software’s development in 2017:

AS 3600:2009 - Concrete Structures
AS/NZS 2327:2017 - Composite Structures – Composite steel-concrete construction in buildings

Access the software

KingFlor® Designer Suite is available for download now.

KingFlor® KF40®

Feature	Benefit
SquashCut™ ends	No end caps needed. Also provides rigid and secure platform during construction.
Unique off-set lap	Enables shear studs to be placed centrally in the pan in the most optimal position.
Unique profile	Concrete savings up to 40kg/m2 (16mm off slab depth).
Lower 40mm height	Suitable for post-tensioning ducts.
Wide 742mm cover	Economical deck.
Strong re-entrant features	KF40® has been specifically designed to provide a strong and reliable shear bond performance giving strong composite slabs.

Single Slab Span (L) on Steel support: Formwork deflection limits L/130

Slab Depth (mm)	0.75 BMT Number of props per span			1.0 BMT Number of props per span
Slab Depth (mm)	0	1	2	0	1	2
90	2250	[5900]	[8250]	2450	[6450]	[9000]
100	2150	[5700]	[8000]	2350	[6250]	[8700]
110	2100	[5550]	[7750]	2300	[6100]	[8500]
120	2050	[5400]	[7550]	2250	[5950]	[8250]
130	2000	[5300]	[7350]	2150	[5800]	[8050]
140	1950	[5150]	[7200]	2100	[5650]	[7850]
150	1900	5000	[7000]	2050	[5550]	[7700]
160	1850	4900	[6850]	2050	5450	[7550]
170	1800	4800	[6750]	2000	5300	[7400]
180	1750	4700	[6600]	1950	5200	[7250]
190	1700	4650	6500	1900	5150	[7150]
200	1650	4550	6400	1900	5050	7000
210	1650	4450	6300	1850	4950	6900
220	1600	4400	6200	1800	4900	6800
230	1600	4300	6100	1750	4850	6700
240	1550	4250	6000	1750	4800	6600
250	1550	4200	5950	1700	4700	6550

KF 40 SS A
Note:
Brackets indicate Span/Depth ratio greater than 35 for single spans and 40 for double spans

Single Slab Span (L) on Steel support: Formwork deflection limits L/240

Slab Depth (mm)	0.75 BMT Number of props per span			1.0 BMT Number of props per span
Slab Depth (mm)	0	1	2	0	1	2
90	1850	[5000]	[6900]	2050	[5450]	[7600]
100	1750	[4800]	[6700]	1950	[5250]	[7300]
110	1700	[4650]	[6450]	1900	[5100]	[7100]
120	1650	[4550]	[6300]	1800	[4950]	[6900]
130	1600	4400	[6100]	1750	[4850]	[6700]
140	1550	4300	[5950]	1700	4700	[6550]
150	1500	4200	[5800]	1650	4600	[6400]
160	1450	4100	[5700]	1650	4500	[6250]
170	1400	4000	5550	1600	4400	[6100]
180	1400	3950	5500	1550	4300	6000
190	1350	3850	5400	1500	4250	5900
200	1300	3800	5300	1500	4150	5800
210	1300	3750	5200	1450	4100	5700
220	1250	3700	5100	1400	4050	5600
230	1250	3600	5050	1400	4000	5500
240	1250	3550	4950	1350	3900	5450
250	1200	3500	4850	1350	3850	5400

KF 40 SS B
Note:
Brackets indicate Span/Depth ratio greater than 35 for single spans and 40 for double spans

Continuous-Two or more Spans (L) on steel support: Formwork deflection limits L/130

Slab Depth (mm)	0.75 BMT Number of props per span			1.0 BMT Number of props per span
Slab Depth (mm)	0	1	2	0	1	2
90	2950	[5600]	[8400]	3200	[6150]	[9150]
100	2850	[5450]	[8100]	3100	[5950]	[8850]
110	2750	[5250]	[7850]	3050	[5750]	[8600]
120	2700	[5100]	[7650]	2950	[5600]	[8400]
130	2600	5000	[7450]	2900	[5500]	[8200]
140	2550	4850	[7300]	2800	5350	[8000]
150	2500	4750	[7150]	2750	5250	[7800]
160	2450	4650	[7000]	2700	5100	[7650]
170	2400	4600	[6850]	2650	5000	[7500]
180	2350	4500	6750	2600	4950	[7350]
190	2300	4400	6600	2550	4850	7250
200	2250	4350	6500	2500	4750	7150
210	2200	4250	6400	2450	4700	7000
220	2200	4200	6300	2450	4600	6900
230	2150	4150	6200	2400	4550	6800
240	2100	4100	6100	2350	4500	6700
250	2100	4050	6050	2350	4450	6650

KF 40 CS A
Note:
Brackets indicate Span/Depth ratio greater than 35 for single spans and 40 for double spans

Temporary Propping Tables Notes:

The tables above denote maximum allowable centreline to centreline span in millimetres between permanent supports after temporary propping is removed.

The practical limit for span to slab depth ratio is considered to be 35 for single span slabs, or 40 for continuous slabs. Values above these limits have been listed in brackets "[ ]". The use of the results in brackets must be confirmed with the structural engineer or a Fielders representative as the long term serviceability and composite performance of the resulting concrete slab may not be suitable for the project application.

Allowance has been made for ponding of wet concrete due to decking deflection, density 2400kg/m3.

Loading is considered in accordance with AS 1170.0:2002, AS/NZS 2327:2017, AS 3610:1995 with a Stage III construction live load allowance of 1.0kPa in accordance with AS/NZS 2327:2017 Appendix A.

The requirements for Stage II & IV material staking loads in accordance with AS/NZS 2327:2017 Appendix A are assumed to be zero.

It is recommended that an experienced structural engineer design the composite slab to ensure sufficient capacity to meet strength and long term deflection requirements.

A span/130 deflection limit will result in a noticable sag in the soffit and should only be adopted when the soffit will not be exposed.

These tables are based upon effective section properties of the sheeting calculated in accordance to AS 4600:2005.

Care must be exercised when placing concrete to avoid mounding.

Wide ply strips, of 300mm wide, shall be provided to prevent any concentrated loads being applied to the sheeting, particularly for exposed soffits, to avoid direct point loading of the sheet overlap ribs and unsupported edges of the sheeting.

When using the table for two or more spans the adjacent spans should not differ in length by more than 5%.
A maximum sheet length of 12m has been considered.

A minimum bearing width on the permanent support has been considered to be 50mm.

Fielders recommend a gauge of 1.00 mm BMT for exposed soffits in propped applications to avoid creasing of steel decking. Please contact your local KingFlor® representative for further information.

Continuous-Two or more Spans (L) on steel support: Formwork deflection limits L/240

Slab Depth (mm)	0.75 BMT Number of props per span			1.0 BMT Number of props per span
Slab Depth (mm)	0	1	2	0	1	2
90	2500	[4700]	[7050]	2700	[5150]	[7700]
100	2400	[4550]	[6800]	2600	[4950]	[7450]
110	2300	4400	[6600]	2550	[4800]	[7200]
120	2250	4250	[6400]	2450	4700	[7000]
130	2200	4150	[6200]	2400	4550	[6800]
140	2150	4050	[6050]	2350	4450	[6650]
150	2100	3950	5900	2300	4350	[6500]
160	2050	3850	5800	2250	4250	6350
170	2000	3800	5650	2200	4150	6200
180	1950	3700	5550	2150	4050	6100
190	1900	3650	5450	2100	4000	6000
200	1900	3600	5350	2050	3950	5900
210	1850	3550	5300	2050	3850	5800
220	1850	3450	5200	2000	3800	5700
230	1800	3400	5100	1950	3750	5600
240	1750	3350	5050	1950	3700	5550
250	1750	3300	4950	1900	3650	5450

KF 40 CS B
Note:
Brackets indicate Span/Depth ratio greater than 35 for single spans and 40 for double spans

Temporary Propping Tables Notes:

The tables above denote maximum allowable centreline to centreline span in millimetres between permanent supports after temporary propping is removed.

The practical limit for span to slab depth ratio is considered to be 35 for single span slabs, or 40 for continuous slabs. Values above these limits have been listed in brackets "[ ]". The use of the results in brackets must be confirmed with the structural engineer or a Fielders representative as the long term serviceability and composite performance of the resulting concrete slab may not be suitable for the project application.

Allowance has been made for ponding of wet concrete due to decking deflection, density 2400kg/m3.

Loading is considered in accordance with AS 1170.0:2002, AS/NZS 2327:2017, AS 3610:1995 with a Stage III construction live load allowance of 1.0kPa in accordance with AS/NZS 2327:2017 Appendix A.

The requirements for Stage II & IV material staking loads in accordance with AS/NZS 2327:2017 Appendix A are assumed to be zero.

It is recommended that an experienced structural engineer design the composite slab to ensure sufficient capacity to meet strength and long term deflection requirements.

A span/130 deflection limit will result in a noticable sag in the soffit and should only be adopted when the soffit will not be exposed.

These tables are based upon effective section properties of the sheeting calculated in accordance to AS 4600:2005.

Care must be exercised when placing concrete to avoid mounding.

Wide ply strips, of 300mm wide, shall be provided to prevent any concentrated loads being applied to the sheeting, particularly for exposed soffits, to avoid direct point loading of the sheet overlap ribs and unsupported edges of the sheeting.

When using the table for two or more spans the adjacent spans should not differ in length by more than 5%.
A maximum sheet length of 12m has been considered.

A minimum bearing width on the permanent support has been considered to be 50mm.

Fielders recommend a gauge of 1.00 mm BMT for exposed soffits in propped applications to avoid creasing of steel decking. Please contact your local KingFlor® representative for further information.

KF40® can be adopted as permanent formwork and composite reinforcement in the design and construction of post-tensioned composite slabs.

The shallow overall depth of the KF40® profile allows post-tensioning tendons to be draped in the spanning and transverse directions of the slab without clashes.

The primary post-tensioning tendons draped parallel to the spanning direction of the KF40® slab are located centrally between ribs at the cover specified in Tables 2A, 2B and 2C to achieve the required FRL.

The minimum recommended post-tensioned slab thickness is 160mm to allow tendons to be draped and pre-stressing anchorages to fit within the slab depth without causing horizontal splitting.

Figure KF 40 003
Fitting a Typical Live-End Anchorage in a Composite Slab Incorporating KF40®
Note: Anti-bursting reinforcement can be supported off lap ribs, which ideally are only 20mm high and allow concrete aggregate to pass around the reinforcing bars as necessary.

Locating Longitudinal Tendons

The location of the post-tension tendon for KF40® slabs are determined in order to not exceed the limiting steel temperatures of 450°C (simply supported), 520°C (flat slab) and 650°C (continuous) to ensure consistency with the current version of AS 3600:2009.

For the case of tendons having parallel orientation to the deck it is assumed that the tendon is located centrally between two KF40® ribs. This gives a distance from the centreline of the rib to the edge of the tendon of 85mm. The required distances from the heated soffit to the bottom of the tendon have been determined using TASEF-2 analyses previously undertaken for KF40®.

The slab thickness has been assumed to be 160mm but the results can be considered to be applicable to the range of practical post-tensioned concrete slabs.

Figure KF 40 004
Distances to the Prestressing Tendon.

Table 2A: Minimum Distance (D) to Underside of Tendon from Soffit (S = 45mm)

FRL	Simply Supported (mm)	Continuous (mm)	Flat Slabs (mm)
120	47	25	36
180	67	35	55
240	83	47	70

KF40MD45

Table 2B: Minimum Distance (D) to Underside of Tendon from Soffit (S = 70mm)

FRL	Simply Supported (mm)	Continuous (mm)	Flat Slabs (mm)
120	49	25	38
180	69	37	58
240	84	49	73

KF40MD70

Table 2C: Minimum Distance (D) to Underside of Tendon from Soffit (S = 90mm)

FRL	Simply Supported (mm)	Continuous (mm)	Flat Slabs (mm)
120	53	25	42
180	71	38	60
240	85	50	75

KF40 MD 90

Temporary Propping

If temporary propping is required (refer to the temporary propping tables), props should be placed at the correct centres prior to laying the KF40® sheets. Generally, timber or steel bearers with a minimum dimension of 75mm x 75mm are used on vertical props. The props should be installed so as to prevent settlement during loading by wet concrete and other construction loads.

300mm wide ply strips to be positioned above the header bearers to assist in dispersing the load and minimise any local deformation of the decking due to the headers.

Temporary props should only be removed after the slab has reached sufficient strength (at least 75% of the specified 28 day strength). The full design load may only be applied once the slab has achieved 28-day strength.

Fastener Locations

The decking must be positively fixed to the supporting structure in order to avoid movement and excessive deflection during the pouring of concrete.

When fixing to a steel support structure, shot fired pins or self- drilling/tapping fasteners should be used. Provide one fastener in each pan at every support.

In the case of other support systems, such as brickwork, block work and concrete, the KF40® sheets must be temporarily held in place against wind and other effects until the concrete is poured.

Reinforcement

Place all reinforcement in strict accordance with the structural engineer’s drawings and specification.

Concrete Placement

The specified grade of concrete and any chemical admixtures must be in strict accordance with AS 3600:2009 and the structural engineer’s drawings and specification. The deck must be clear of any excess dirt, grease or debris as this inhibits bonding between the deck and concrete.

Ensure that concrete is applied evenly over the decking surface, as mounding of the wet concrete will cause excessive local loading.

Material Properties	1.0mm BMT	1.2mm BMT	1.5mm BMT
Mass Area – Average mass of fitted deck per plan area (kg/m2)	13.61	16.34	20.24
Mass Linear – Mass of individual length (kg/m)	8.16	9.8	12.25
Zinc Coating (g/m2) (Z350)	350	350	350
Yield Strength (MPa)	550	500	450

Material Properties	0.75 BMT	1.00 BMT
Mass Area – Average mass of fitted deck per plan area (kg/m2)	9.97	13.10
Mass Linear – Mass of individual length (kg/m)	2.99	3.93
Zinc Coating (g/m2) (Z350)	350	350
Yield Strength (MPa)	550	550

Material Properties	0.75 BMT	1.00 BMT
Mass Area – Average mass of fitted deck per plan area (kg/m2)	9.97	13.10
Mass Linear – Mass of individual length (kg/m)	2.99	3.93
Zinc Coating (g/m2) (Z350)	350	350
Yield Strength (MPa)	550	550

Material Properties	1.0mm BMT	1.2mm BMT	1.5mm BMT
Mass Area – Average mass of fitted deck per plan area (kg/m2)	13.61	16.34	20.24
Mass Linear – Mass of individual length (kg/m)	8.16	9.8	12.25
Zinc Coating (g/m2) (Z350)	350	350	350
Yield Strength (MPa)	550	500	450

Material Properties	0.75 BMT	1.00 BMT
Mass Area – Average mass of 3-PAN deck per plan area (kg/m2)	8.35	10.97
Mass Linear – Mass of individual 3-PAN length (kg/m)	6.19	8.14
Zinc Coating (g/m2) (Z350)	350	350
Yield Strength (MPa)	550	550

Award-Winning Design and Construction: TRYP by Wyndham Adelaide

Navigating site constraints

Fielders' KingFlor® KF70® Framework System

Awards and Recognition

Fielders offers bespoke solution for the Art Gallery of New South Wales

Introducing the DSG

The qualities of KingFlor®

Fielders offers bespoke solution for the Art Gallery of New South Wales

Introducing the DSG

The qualities of KingFlor®

Features and Benefits

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Installing SlimDek 210®

Single Slab Span (L) on Steel Support (mm) Formwork Deflection Limit L/130

Single Slab Span (L) on Steel Support (mm) Formwork Deflection Limit L/240

Features and Benefits

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Features and Benefits

KF57® - Material Specifications

KF57® Formwork/Slab Span Tables Single Span

Single Slab Span (L) on Steel support Formwork deflection limits L/130 and L/240

KF57® Formwork/Slab Span Tables Continuous Span

Continuous: 3 spans (L) on steel support Formwork deflection limits L/130 and L/240

KF57® Temporary Propping Tables

KF57® Frame Propping - 1200mm Frame Size Maximum Spans (mm) for Deflection L/240

KF57® Frame Propping - 1500mm Frame Size Maximum Spans (mm) for Deflection L/240

Installing Fielders KF57®

Features and Benefits

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Features and Benefits

KF57® - Material Specifications

KF57® Formwork/Slab Span Tables Single Span

Single Slab Span (L) on Steel support Formwork deflection limits L/130 and L/240

KF57® Formwork/Slab Span Tables Continuous Span

Continuous: 3 spans (L) on steel support Formwork deflection limits L/130 and L/240

KF57® Temporary Propping Tables

KF57® Frame Propping - 1200mm Frame Size Maximum Spans (mm) for Deflection L/240

KF57® Frame Propping - 1500mm Frame Size Maximum Spans (mm) for Deflection L/240

Installing Fielders KF57®

Features and Benefits

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RF55® Formwork/Slab Span Tables Single Span

RF55® Formwork/Slab Span Tables Continuous Span

RF55® Formwork/Slab Span Tables Continuous Span

Single Slab Span (L) on Steel support Formwork deflection limits L/130

RF55® Formwork/Slab Span Tables Continuous Span

Single Slab Span (L) on Steel support Formwork deflection limits L/130

RF55® Formwork/Slab Span Tables Continuous Span

Continuous : 3 Spans (L) on steel support - Formwork deflection limits L/240

Installing Fielders RF55®

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KingFlor® Designer Suite

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About KF40®

KF40® Features and Benefits

Concrete Savings

KF40® Material Specifications

KF40® 3-Pan Formwork/Slab Span Tables - Simple Span

Single Slab Span (L) on Steel support: Formwork deflection limits L/130

Single Slab Span (L) on Steel support: Formwork deflection limits L/240

Figure KF 40 001

KF40® 3-Pan Formwork/Slab Span Tables - Continuous Spans

Continuous-Two or more Spans (L) on steel support: Formwork deflection limits L/130

Continuous-Two or more Spans (L) on steel support: Formwork deflection limits L/240

Figure KF 40 002

KF40® Pre-stressed / Post-tensioned Slabs

Figure KF 40 003 Fitting a Typical Live-End Anchorage in a Composite Slab Incorporating KF40® Note: Anti-bursting reinforcement can be supported off lap ribs, which ideally are only 20mm high and allow concrete aggregate to pass around the reinforcing bars as necessary.

Locating Longitudinal Tendons

Figure KF 40 004 Distances to the Prestressing Tendon.

Table 2A: Minimum Distance (D) to Underside of Tendon from Soffit (S = 45mm)

Table 2B: Minimum Distance (D) to Underside of Tendon from Soffit (S = 70mm)

Table 2C: Minimum Distance (D) to Underside of Tendon from Soffit (S = 90mm)

Locating Transverse Tendons

Figure KF 40 005 Distance between Top of Rib and underside of Tendon

Table 3: Minimum Distance between Top of Rib and underside of Tendon

Installing KF40®

Temporary Propping

Laying KF40®

SquashCutTM/Band Beam Detail

Figure KF 40 003
Fitting a Typical Live-End Anchorage in a Composite Slab Incorporating KF40®
Note: Anti-bursting reinforcement can be supported off lap ribs, which ideally are only 20mm high and allow concrete aggregate to pass around the reinforcing bars as necessary.

Figure KF 40 004
Distances to the Prestressing Tendon.

Figure KF 40 005
Distance between Top of Rib and underside of Tendon