Analysis on shear-lag effect of composite box girders with corrugated steel webs considering shear deformation of webs

被引：0
|
作者：
Wu Q. [1 ]
Jiang R. [1 ,2 ]
Xu T. [1 ]
Chen Y. [1 ]
Nie X. [1 ]
机构：
[1] Shenzhen Municipal Design & Research Co., Ltd, Shenzhen
[2] School of Civil Engineering, Shandong University, Jinan
来源：
Jianzhu Jiegou Xuebao/Journal of Building Structures | 2021年 / 42卷
关键词：
Composite box girders with corrugated steel webs; Influence line; Shear deformation; Shear-lag effect; Vehicle loading;
D O I：
10.14006/j.jzjgxb.2021.S1.0025
中图分类号：
学科分类号：
摘要：
In a composite box girder with corrugated steel webs, the shear force is mainly carried by the webs. As the shear rigidity of corrugated steel webs is smaller than that of concrete webs, larger shear deformation will be generated in corrugated steel webs. Therefore, an analytical analysis method was first proposed to analyze the shear-lag effect of composite girders with corrugated steel webs, in which the influence of shear deformation of webs was considered. The analytical method was validated by the experimental research, and the influence of shear deformation of webs was studied using this analytical method. Meanwhile, the shear-lag effect of this kind of structure under the vehicle loading specified in design codes was investigated considering the most unfavorable loading condition based on the concept of the influence line. The results show that the results of the proposed analytical method agree well with experimental results. The shear deformation of webs reduces the shear-lag effect in the positive bending moment segments of the three-span continuous beam. To be specific, when the shear deformation of webs is considered, the effective flange width coefficient becomes closer to 1.0. © 2021, Editorial Office of Journal of Building Structures. All right reserved.
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页码：220 / 228
页数：8
相关论文
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