U-shaped steel beam and steel truss floor deck system

Abstract

The invention relates to a U-shaped steel beam and steel bar truss floor deck system. The cross-sections of the U-shaped main steel beam and the U-shaped secondary steel beam in the steel beam floor are both U-shaped, and flanges are provided on both sides of the upper opening of the U-shaped main steel beam and U-shaped secondary steel beam; the steel truss and floor bearing The slab is laid on the steel beam floor, and the web foot of the steel truss is connected with the floor deck as a whole. The floor deck is disconnected at the upper opening of the U-shaped main steel beam and the U-shaped secondary steel beam; Transverse reinforcement, the horizontal reinforcement is perpendicular to the chord reinforcement of the steel truss and is bound and fixed with the chord reinforcement; U-shaped main steel girders, U-shaped secondary steel girders, and studs are welded at the overlapping parts of the flanges on both sides of the upper part of the U-shaped steel girder and the floor deck. The upper outer edge of the U-shaped main steel beam on the outer edge of the steel beam floor is welded with side panels. The structure of the invention is simple and reasonable, and can avoid the steps of temporary support, formwork support and formwork removal during floor pouring, and has large bearing capacity, large ductility, small beam section, and convenient and quick construction.

Description

technical field [0001] The invention relates to a building floor system, in particular to a U-shaped steel beam and steel bar truss floor deck system. Background technique [0002] In the fields of public buildings, civil buildings, bridge constructions, etc., the existing structural systems of reinforced concrete and H-shaped steel outsourcing concrete need to erect temporary supports, set up formwork, lay bundled steel bars, pour concrete, formwork removal and other processes when pouring floors. , the operation is complex and difficult. Moreover, in the existing structural system of H-shaped steel and reinforced truss floor deck, the H-shaped steel section is very large, which increases the height of the floor, and because the H-shaped steel is completely exposed, heavy fireproofing treatment is required, which increases the cost. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the prior art, and to provide a n...

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Problems solved by technology

[0002] In the fields of public buildings, civil buildings, bridge buildings, etc., the existing reinforced concrete and H-shaped steel-clad concrete structural systems need to erect temporary supports, support formwork, lay bundled steel bars, pour concrete, formwork removal and other processes when pouring floors. , the operation is complex and difficult

Moreover, in the existing structural system of H-shaped steel and reinforced truss floor deck, the H-shaped steel section is very large, which increases the height of the floor, and because the H-shaped steel is completely exposed, heavy fireproofing treatment is required, which increases the cost

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