Corrugated steel web compound web structure

Abstract

The invention discloses a corrugated steel web compound web structure. Steel plates are vertically fixed to a flat steel plate on the inner side of a corrugated steel web, openings are formed in one side of the free ends of the steel plates, penetrating rebars are arranged in the openings of the steel plates, lining concrete is arranged on the outsides of the corrugated steel web, the steel plates and the penetrating rebars in a wrapping manner, and thus the compound web structure is formed. According to the invention, the steel plates provided with the openings are welded on the corrugated steel web, so that the shear stiffness and out-of-plane anti-buckling stiffness of the corrugated steel web are improved; compared with connection through studs, the welding workload is decreased; a plurality of the openings are formed in one side of the free ends of the steel plates, and the openings are of L-shaped structures, and by adopting the design of the L-shaped structures, the penetrating rebars can be directly arranged in the grooves of the openings and fixed conveniently. Compared with the existing steel plate connecting pieces, the problem brought by construction of punching holes in the rebars on site is avoided, the construction period of site construction is effectively shortened, and the cost is lowered.

Description

technical field [0001] The invention relates to a bridge component connection structure of a road or a railway, in particular to a corrugated steel web composite web structure. Background technique [0002] For long-span corrugated steel web composite box girder bridges, the bending moment and shear force near the fulcrum are relatively large, and the constraint conditions and stress conditions are more complicated. For corrugated steel web composite box girder bridges, the composite web structure with inner poured concrete is generally used near the root of the middle fulcrum, which can avoid the stress concentration at the joint between the root concrete and the corrugated steel web due to sudden changes in stiffness and improve the resistance of the corrugated steel web. Buckling performance, while effectively transmitting the web force to the substructure. [0003] At present, there are mainly two ways to connect the corrugated steel web and the lining concrete, one is ...

AI Technical Summary

Problems solved by technology

The welding workload of the welding stud connector is relatively large, and it affects the quality of concrete pouring; the steel plate connector is difficult to thread on site, requires high construction accuracy, and the construction period is long

Images