Steel reinforced concrete precast slab

Abstract

The reinforced concrete prefabricated slab includes one slab, and features that the slab has steps in the upper or the lower peripheral planes. The present invention is suitable for in-situ cast or pre-stressed reinforced concrete hollow floor slab, roof, wall, foundation slab and hollow bridge, especially hollow flat floor slab.

Description

(1) Technical field [0001] The invention relates to a reinforced concrete prefabricated board. (2) Background technology [0002] At present, formwork members are generally enclosed by upper plates, side plates and bottom plates to form cavity members. The upper plate, side plates and lower bottom of formwork members are connected in various ways to form an integral formwork member, or used during production. The overall molding process makes the integral formwork components. Such formwork components have good overall sealing performance, light weight, and are easy to transport and construct as a whole. They can hollow out the cast-in-place concrete that does not bear structural forces in the cast-in-place concrete hollow structure Forming a hollow concrete structure effectively reduces the self-weight of the cast-in-place concrete structure, reduces the amount of materials used, and reduces the cost. However, the bottom plate of this formwork member is easily damaged during...

AI Technical Summary

Problems solved by technology

[0002] At present, formwork members are generally enclosed by upper plates, side plates and bottom plates to form cavity members. The upper plate, side plates and lower bottom of formwork members are connected in various ways to form an integral formwork member, or used during production. The overall molding process makes the integral formwork components. Such formwork components have good overall sealing performance, light weight, and are easy to transport and construct as a whole. They can hollow out the cast-in-place concrete that does not bear structural forces in the cast-in-place concrete hollow structure Forming a hollow concrete structure effectively reduces the self-weight of the cast-in-place concrete structure, reduces the amount of materials used, and reduces the cost. However, the bottom plate of this formwork member is easily damaged during transportation, stacking and construction application, and cannot withstand Large construction load, local impact damage ability is weak, it is easy to be damaged and the cast-in-place concrete enters the component, thereby affecting the structural performance, and the overall formwork component has poor application flexibility, and it is not easy to change the model size of the formwork component. Therefore, it is urgently needed to develop a new type of reinforced concrete prefabricated panel.

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