Bidirectional steel-stacked plate concrete composite building roof

Abstract

The invention relates to a dual-way steel-laminated slab concrete composite floor, belonging to a new large span floor structure, comprising a cross steel beam, a prefabricated slab and a later pouring concrete layer, wherein the cross steel beam is an I shaped cross section or box section steel beam; the prefabricated slab, a common reinforced concrete slab or a prestressed concrete slab, is held on the cross steel beam and covered on the grids between the steel beams; the later pouring concrete layer is concrete poured on the prefabricated slab and the steel beam. The invention has the advantages of low structure height, high bearing capacity, stiffness, bilateral support effect, saved forming procedure and formwork, reduced the wet work amounts of site concrete, favorableness to the three-dimensional construction, and shortened construction period.

Description

technical field [0001] The invention relates to a novel long-span floor structure (15m≤span L≤70m), which belongs to the field of structural engineering. Background technique [0002] In building structures, reinforced concrete rib beam floors, reinforced concrete well-shaped floors or unidirectionally supported steel-concrete composite beam floors are usually used. However, when the plane size and column distance of the building are significantly increased or vertical support members are not allowed indoors, these traditional floor structure forms cannot meet the requirements of the development of long-span structures in terms of bearing capacity, seismic performance, and construction speed. Require. Contents of the invention [0003] The purpose of the present invention is to provide a two-way supporting steel-concrete composite floor structure with large bearing capacity, convenient construction and low structural height. [0004] Technical scheme of the present inven...

AI Technical Summary

Problems solved by technology

However, when the plane size and column distance of the building are significantly increased or vertical support members are not allowed indoors, these traditional floor structure forms cannot meet the requirements of the development of long-span structures in terms of bearing capacity, seismic performance, and construction speed. Require

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