Shearing force connecting structure of corrugated steel web box girder

By using angle steel vertically embedded in the concrete slab and welded to the corrugated steel web box girder, and connected by perforated steel bars, the problem of insufficient stiffness of the corrugated steel web box girder under eccentric load was solved, achieving better shear and torsional resistance and reducing construction costs.

CN223837890UActive Publication Date: 2026-01-27CHONGQING ZHONGHUAN CONSTR +3
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520385283.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-05
Publication Date
2026-01-27
Estimated Expiration
2035-03-05

AI Technical Summary

Technical Problem

Under eccentric loads, corrugated steel web box girders have low torsional stiffness, shear stiffness, and longitudinal stiffness. Traditional shear keys fail to effectively enhance the stiffness and strength of the connection between the corrugated steel web and concrete, especially under distortion and torsion.

Method used

Angle steel vertically embedded in the concrete slab is welded to the corrugated steel web and connected by first and second perforated steel bars to form a shear-resistant structure, which enhances the stiffness and strength of the connection between the corrugated steel web and the concrete and increases the resistance to distortion.

Benefits of technology

It improves the stiffness and strength of the connection between the corrugated steel web and the concrete, reduces additional welding costs, ensures good construction quality, adapts to deformation caused by eccentric loads, and enhances shear and torsional resistance.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223837890U_ABST
    Figure CN223837890U_ABST
Patent Text Reader

Abstract

The utility model relates to a shearing force connecting structure of a corrugated steel web box girder, and belongs to the technical field of bridge engineering. The angle steel is vertically embedded into the concrete slab and is welded with the corrugated steel web; the embedded part of the angle steel is respectively provided with three open holes which are respectively convenient for the perforated steel bars to pass through; the first perforated reinforcements are parallel to the length direction of the corrugated steel web, and the second perforated reinforcements are perpendicular to the first perforated reinforcements. The multiple pieces of angle steel are sequentially arranged in the length direction of the corrugated steel web and sequentially arranged at the bottom of each groove of the corrugated steel web according to the alternating rule, and the same first perforated steel bar penetrates through the multiple first open holes. The connecting structure has interface shear resistance and web root bending resistance and torsion resistance, and the rigidity and strength of the roots of the corrugated steel webs under the action of distortion and torsion are improved while shear resistance connection is achieved; and on the premise of ensuring the shear stiffness, the deformation of the steel-concrete junction of the cross section of the box girder under the action of eccentric load and the like can be better adapted.
Need to check novelty before this filing date? Find Prior Art