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CCAT
Closed-type decking sheets, also known as cellular or composite steel decks, are advanced structural components designed for steel-framed buildings. Unlike open decks, they feature enclosed ribs or cellular voids that enhance load capacity and functionality. Here’s a concise overview:
1. Closed profiles create deeper channels for concrete, maximizing the bond strength between steel and concrete. This results in higher shear resistance and reduced deflection, ideal for long spans.
2. The cellular design allows concealed routing of mechanical, electrical, and plumbing (MEP) systems within the deck, optimizing floor-to-floor height and aesthetic appeal.
3. Concrete-filled cells provide inherent fire protection (up to 2 hours) and improved sound insulation, eliminating the need for additional treatments.
4. Despite their strength, closed decks reduce dead loads on foundations compared to traditional reinforced concrete floors, lowering material and construction costs.
5. Their interlocking design enables rapid placement and secure fixing to steel beams, accelerating project timelines.
6. Span Capability: Suited for large spans (up to 6 meters) in commercial, industrial, and high-rise buildings.
7. Concrete Thickness: Typically 100–150 mm, optimized for load requirements.
8. Decks are laid and fastened to steel beams. Reinforcement bars are placed in the ribs.
Concrete is poured, filling the cells to form a monolithic slab.
Closed-type decking sheets combine structural efficiency with service integration, making them a premium choice for modern, sustainable building projects.
Model NO. | YX65-185-555 | YX48-200-600 | YX65-240-720 |
Modular width | 555mm | 600mm | 720mm |
Feeding width | 1000 mm | 1000mm | 1219mm |
Available thickness | 0.8 - 1.2 mm | 0.8-1.2mm | 0.8-1.2mm |
Length | Limited length to 20FT container: 5.85 meters; Limited length to 40FT container: 11.85 meters; | ||
Production
Packing and Loading as following ing as following
Advantages of composite floor steel decking:
(1) | light in weight, high intensity, huge lodging capacity as well as good anti-earthquake capability |
(2) | simple in construction operation, easy to install |
(3) | reducing the cost of raw material |
(4) | enable easy operation wiring, and so on |
2. Raw materials of composite floor steel decking: | |
(1) | Hot dipped galvanized steel sheet Q235 Q345 |
(2) | Galvalume steel sheet(Zinc- aluminum galvanized steel sheet) |
(3) | Aluminum sheet |
3. specification of composite floor steel decking: | |
Thickness | 0.8-1.2mm; max 1.5mm |
Width | 600mm-1025mm (depend on the model you chose) |
Length | 0mm-11850mm |
Other Model | YX76-305-915/ YX51-250-750 /YX35-125-750 /YX130-280-600 |
Certification | JIS/ASTM/GB/T12755-2000 |
Thickness Tolerance: | +/-0.02mm |
Width Tolerance: | +/-2mm |
Zinc Coating: | 60-275g/m2; |
(1) Durable, high strength, good bearing performance, good anti-seismic performance
(2) Easy and quick construction, simple assembled
(3) To replace the traditional templates and improve shortcomings of traditional templates
(4) As part of the structural strength, to reduce the materials cost
(5) Easy reinforcement, wiring, piping construction
(6) Neat and nice looking
Applications:
This closed-type decking sheet is commonly used as flooring in high-rise buildings, offering significant advantages in steel savings and weight reduction. With equivalent load-bearing capacity, it reduces steel usage—directly lowering project costs.
Widely applied in steel structure construction, it's ideal for:
Multi-layer and high-rise steel structure buildings
Power plants
Exhibition centers
Airports and railway stations
Sports stadiums, concert halls, and theaters
Large supermarkets and logistics centers
Olympic venues and other large-scale facilities
