Structure Analysis And Construction Craft Of The Cast-in-place Reinforced Concrete Spatial Core Beamless Roof

The cast-in-place reinforced concrete spatial core beamless roof is one kind of new beamless roof system, it is self-possessed lightly, the span is big, after is continues the belt capital of column the beamless roof, the plate beamless roof, the dense rib beamless roof, complies with the time to the beamless roof system request new beamless roof system, at present already entered the use in some engineering project upthrow, has obtained the good economic efficiency and the social efficiency.Compared with the ordinary plate beamless roof, the cast-in-place reinforced concrete spatial core beamless roof has two prominent diversities, one is buries the hollow cylinder in the floor to form the hollow floor in advance, the other is equipped with wide-flat beams between the frame.This article take the cast-in-place reinforced concrete spatial core beamless roof characteristic as a foundation, analyzes its basic mechanics performance, explores the reasonable computation pattern and the design method, to carries on the design, the safeguard structure safety handling correctly, further promotes its application, has the vital significance.This article used large-scale finite element structure analysis software PKPM and STRAT has carried on the stress, the amount of deflection and the crack analysis to the reinforced concrete hollow floor, the finite element computation result has confirmed this article structure analysis theory.Simultaneously this article the item which should pay attention to the cast-in-place reinforced concrete spatial core construction craft and the construction has also made the detailed elaboration, might for the engineers and technicians to refer.