Assembly type prefabricated laminated slab

Abstract

The invention provides an assembly type prefabricated laminated slab. The assembly type prefabricated laminated slab comprises a prefabricated layer, a laminated layer, light-material plates, steel bar trusses, principal rafter steel bars, bottom chord steel bars, diagonal steel bars and horizontally distributed steel bars. The principal rafter steel bars, the bottom chord steel bars and the diagonal steel bars are firstly welded to form the steel bar trusses in a factory, then the light-material plates are manufactured, afterwards, the prefabricated layer is manufactured by pouring concrete, when the prefabricated layer is not solidified or formed, the light-material plates are fixedly arranged between the steel bar trusses, and maintenance formation is conducted; a floor plate with the finished prefabricated layer is installed and emplaced at the construction site, the horizontally distributed steel bars are arranged on the steel bar trusses of the prefabricated bar, then concrete cast-in-place is conducted in a unified mode to form a integral casting layer, namely the laminated layer, all the floor plates form a unified whole, that is the manufacturing of the assembly type prefabricated laminated slab is completed. The prefabricated laminated slab is formed by two times of casting, the advantages of the triangular steel bar trusses and the light-material plates are utilized, and the slab has the advantages of being convenient to transport, good in whole performance, excellent in mechanical property, low in weight and high in strength.

Description

technical field [0001] The invention relates to an assembled prefabricated laminated board, which belongs to the field of building components. Background technique [0002] As an important horizontal component and the only horizontal support in the building structure, the floor slab has a great impact on the safety, cost and construction period of the project. At present, the floor system forms mainly include cast-in-place reinforced concrete slabs, profiled steel plate-concrete composite slabs, and laminated slabs. Although the cast-in-place reinforced concrete floor has the advantages of good integrity and high rigidity, it requires formwork support, a large amount of wet work on site, low construction efficiency, and a long construction period. Support formwork is required, but the cost is high, and the profiled steel plate needs to be treated with fire protection, and its adhesion to concrete is poor, and the bottom surface is uneven, so it often needs to be treated as ...

AI Technical Summary

Problems solved by technology

Although the cast-in-place reinforced concrete floor has the advantages of good integrity and high rigidity, it requires formwork support, a large amount of wet work on site, low construction efficiency, and a long construction period. Support formwork is required, but the cost is high, and the profiled steel plate needs to be treated with fire protection, and its adhesion to concrete is poor, and the bottom surface is uneven, so it often needs to be treated as a suspended ceiling; The above application has its outstanding advantages, but the existing laminated panels have the following disadvantages: the laminated surface between the prefabricated layer and the laminated layer needs to be strictly treated, and the overall performance after laminated is difficult to guarantee; the thermal insulation of laminated panels Difficult to guarantee thermal performance; on-site steel bar binding is cumbersome and construction speed is slow

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