Mechanical performance of under⁃bridge connectors of cable⁃stayed system strengthened bridge

被引：0

作者：

Wang Y.-Z. ^{[1
]}

Zhao W.-S. ^{[1
]}

Liu J.-Z. ^{[1
]}

Qiu K. ^{[1
]}

Jia S. ^{[1
]}

机构：

[1] School of Civil Engineering, Shandong University, Jinan

来源：

Jilin Daxue Xuebao (Gongxueban)/Journal of Jilin University (Engineering and Technology Edition) | 2022年 / 52卷 / 10期

关键词：

cable-stayed system reinforcement; combined shear and compression load; double shear interface; hybrid connection; under-bridge connector;

D O I：

10.13229/j.cnki.jdxbgxb20210255

中图分类号：

学科分类号：

摘要：

The cable-stayed system reinforcement method has been applied to some projects in recent years. The joints under the bridge have the characteristics of bearing combined shear and compression loads，double-shear interface，bonded steel plate and anchored bolt mixed connection，etc. The mechanical properties and failure modes are not clear. An accurate finite element model of a connector under the bridge was established by Abaqus finite element method，and its mechanical properties and failure modes were studied. The results show that the final failure mode of each model is the bolt shear failure. The final failure position of the model is divided into two categories：the bolt shear failure at the glue layer and the bolt shear failure at the contact surface of the two steel plates. Under the load，there are 4 kinds of bearing capacity change trends of the connectors under the bridge，and the bearing capacity of some models decreases obviously before failure. When only a single element among the factors that affect the ultimate bearing capacity of the model changes，the ultimate bearing capacity doesn't completely change in a monotonous trend，there is a complex coupling relationship between every element. © 2022 Editorial Board of Jilin University. All rights reserved.

引用

页码：2376 / 2384

页数：8

共 16 条

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