Shear Strength of Keyed Joints in Segmental Precast Concrete Bridges

被引：0
|
作者：
Shen Y. [1 ]
Cai P. [1 ]
Chen L. [2 ]
Li G. [1 ]
机构：
[1] College of Civil Engineering, Tongji University, Shanghai
[2] Shanghai Urban Construction Municipal Engineering (Group) Co., Ltd., Shanghai
来源：
Tongji Daxue Xuebao/Journal of Tongji University | 2019年 / 47卷 / 10期
关键词：
Multi-keyed joints; Non-uniform shear stress distribution; Segmental precast concrete bridges; Shear strength;
D O I：
10.11908/j.issn.0253-374x.2019.10.005
中图分类号：
学科分类号：
摘要：
Based on the stress analysis of a free body with a multi-keyed joint at the web of segmental precast concrete bridge, the shear stress distribution on the root of multi-keys at the joint was analyzed and derived. According to the elastic theoretical analysis, a non-uniform factor of shear stress at the root of multi-keys was proposed and used to modify the AASHTO formula of shear strength of the joint with multi-keys. The comparison with the numerical analysis results shows that the modified formula can accurately reflect the change trend and peak effect of shear stress in multi-keys. Moreover, the differences between the calculation results of the proposed modified formula and the relevant test results are within 5%. © 2019, Editorial Department of Journal of Tongji University. All right reserved.
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页码：1414 / 1420
页数：6
相关论文
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