Knockdown Floorslab
General product information
Features of DUOWEI closed composite slabs:?Powerful concrete bond and anti-shear
Unique rib-close design with good longitudinal anti-shear properties. Slippage phenomenon between the steel carrier plate and concrete has never occurred to DUOWEI Closed composite slabs under its allowable limit of design loading.
?Wonderful Fire Protection Property
The board ribs are fully wrapped in the concrete, just like the steel bars in the cast-in-situ concrete slab. DUOWEI Closed composite slab can be a full substitute for the pulled steel bars at sagging moment and can realizes 1.5 hours of fire durability without any fireproof coating.
?Excellent Cross-section of Composite Slab
DUOWEI Closed composite slabs have got larger effective height and in application stage, they can offer relative large anti-staging moment force.
?Cardcage Suspension System at the Slab Bottom
Able for installation and application of ceiling, suspension roof, water & power pipelines etc. without drilling or welding. In the service period of buildings, they can be freely moved, removed or reassembled according to different needs.
?Easy and Fast Construction
No plugs required at the ends and no leakage, thus shortening the construction duration.
?Flat Slab Bottom Appearance
The flat slab bottom offers attractive looks to those buildings with no suspension roof expected.
? Reduction of Slab Height Effectively
According to fire protection and anti-vibration regulations, the total thickness of closed profiled steel sheet composite slab is only 110-130mm, 30-40mm thinner than that of open ones, lessening weight, reducing cost and increasing clear height.
?Low Cost
Steel bars bearing staging moment at the bottom of DUOWEI Closed composite slab are replaced by closes profiled steel sheet, in which way, no fire protection coating is required, steel bar consumption is lessened and cost is reduced.