Post-poured toothed groove-connected assembled floor or roof

Abstract

The invention discloses a post-poured toothed groove-connected assembled floor or roof. The post-poured toothed groove-connected assembled floor or roof is formed by splicing a plurality of prefabricated concrete slabs; toothed grooves are formed in the slab ends and the slab sides of the prefabricated concrete slabs; the slab-side toothed grooves and the slab-end toothed grooves are provided with bottom plates; embedded slab-side connecting components are arranged inside the slab-side toothed grooves; the embedded slab-side connecting components, connected with floor beams, on one sides of the prefabricated concrete slabs adopt embedded slab-side connecting steel bars I extending outwardly horizontally; embedded slab-end connecting steel bars are arranged inside the slab-end toothed grooves; embedded slab-end connecting steel bars are provided with outwardly extending sections; and outwardly extending longitudinal steel bars are arranged at the bottoms of the two ends of the prefabricated concrete slabs; and the post-poured toothed groove-connected assembled floor or roof comprises four connecting structures: 1), a connecting structure of the slab ends I and the floor beams I; 2), a connecting structure of the slab sides I and the floor beams II; 3), a connecting structure of two adjacent slab ends II; and 4), a connecting structure of two adjacent slab sides II. The post-poured toothed groove-connected assembled floor or roof is light in weight, high in seismic performance, easy and convenient to construct, less in on-site wet workload and good in environment-friendly effect.

Description

technical field [0001] The invention relates to a prefabricated assembly building, in particular to a post-cast tooth groove connection assembly type roof. Background technique [0002] At present, prefabricated floor slabs in the field of construction mainly include prefabricated perforated slabs, grooved slabs, and prefabricated laminated slabs. Prefabricated laminated slabs are more widely used in prefabricated structures. It is a structural form that combines prefabricated slabs with cast-in-place technology. , that is, the prefabricated slabs are produced on a large scale in the factory, transported to the construction site, and then the laminated floor slabs are formed by secondary pouring. In a building structure, an important function of the floor is to provide in-plane rigidity and strength, and to establish effective connections with vertical members and surrounding horizontal members. The floor is both an important vertical load-bearing member and a very important...

AI Technical Summary

Problems solved by technology

On the one hand, in the structural design, it is often assumed that the in-plane rigidity of the floor slab is infinite, and the slab has no deformation in the plane. Therefore, the current prefabricated laminated slab needs to pour a layer of concrete surface layer with a thickness of not less than 50 mm on the prefabricated floor slab to ensure the integrity of the floor slab. performance and rigidity in the plane of the slab to ensure the formation of an assembled monolithic floor and roof structure; The inertial force under the earthquake action increases, which is unfavorable for the structure's earthquake resistance

In addition, since the laminated layer concrete of the prefabricated laminated slabs needs to be post-cast during construction, there are a large number of wet operations on site, requiring formwork and supports, complex operations, long construction periods, great influence by seasons and climates, high resource consumption, and environmental impact. Greater impact

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