Superimposed prefabricated floorslab and construction method thereof

Abstract

The invention provides a superimposed prefabricated floorslab. The superimposed prefabricated floorslab comprises a base plate, a floor plate superimposed on the top face of the base plate and a platebottom rebar arranged on the base plate, wherein the base plate and the floor plate are prefabricated by concrete, the contact area of the layer plate and the base plate is smaller than the area of the base plate, the top face of the layer plate is a floorslab structure completion face, the plate bottom rebar is covered with the base plate, and the area, not in contact with the layer plate, of the base plate forms a concrete cast-in-place area. The floorslab structure completion face of the superimpose prefabricated floorslab is a structural floorslab face meeting the using requirement of rebar concrete floorslabs, the requirement for designing the required thickness of the structure floorslabs can be met at a construction site without the need of casting concrete on the top face of the layer plate, thus the on-site wet construction is reduced, and the construction efficiency is improved.

Description

Technical field [0001] The present disclosure relates to the field of prefabricated buildings, in particular to a laminated prefabricated floor slab and a construction method thereof. Background technique [0002] Prefabricated buildings refer to buildings assembled on the site using prefabricated components. The advantages of this kind of building are fast construction speed, less restricted by climatic conditions, labor saving and improving construction quality. At present, in the assembly of monolithic concrete structures, reinforced concrete laminated floor slabs are generally used. The method is to install truss reinforcement on the upper surface of the concrete precast slab (not the finished surface of the floor structure), and pour the concrete laminated layer on site to reinforce the truss Cover to make it a whole concrete structure, which can bear the load together. The installation of truss reinforcement leads to increased steel content and increased costs. [0003] Th...

AI Technical Summary

Problems solved by technology

Setting the truss reinforcement leads to an increase in steel content and increases the cost

[0003] The cast-in-place laminated layer on the precast concrete floor needs to pour a large amount of concrete on site, and there are many wet operations, and it takes a certain time for the concrete of the laminated layer to solidify, and the supporting devices of the prefabricated walls and other components need to be fixed on the floor. It is necessary to wait for the laminated layer concrete to solidify before proceeding, resulting in low construction efficiency

[0004] Usually, the side of the concrete prefabricated slab needs to protrude from the side of the steel bar (beard bar) to realize the connection with the adjacent plate or slab support, and the existence of the beard bar greatly reduces the efficiency of the industrial production of the concrete precast slab, and different projects, The spacing required for the beard bars of different panels is not the same, resulting in a low reuse rate of side forms for making concrete precast panels

Images