Bearing capacity of semi-circular corrugated steel pipe with cantilever supports

被引：0
|
作者：
Guo B. [1 ]
Guo Q. [2 ]
Sun Y. [3 ]
机构：
[1] Key Laboratory of Building Structural Retrofitting and Underground Space Engineering, Ministry of Education (Shandong Jianzhu University), Jinan
[2] The Second Construction Co., Ltd, China Construction Eighth Engineering Division, Jinan
[3] China Institute of Building Standard Design and Research Co., Ltd, Beijing
来源：
Jianzhu Jiegou Xuebao/Journal of Building Structures | 2022年 / 43卷 / 07期
关键词：
Arch with single wave; Bearing capacity; Corrugated steel pipe; FEA; Global buckling; Support load;
D O I：
10.14006/j.jzjgxb.2020.0543
中图分类号：
学科分类号：
摘要：
Corrugated steel utility tunnel is a novel kind of underground structure. In order to investigate the influence of cantilever supports on the bearing capacity of semi-circular corrugated steel pipes (CSP), the bearing capacity was analyzed using the finite element method, and the influence of parameters such as the support position and load form was discussed. The analysis results show that, the failure mode under the support load is bending failure of the pipe wall at the support connection, and the yield moment depends on the number of connected waves and the bending capacity of a single wave. The failure mode under the circumferential pressure is in-plane global buckling, and the ultimate load has nothing to do with the cantilever support. The failure mode under the support load and the circumferential pressure is still in-plane global buckling, and the correlation between the support load and the circumferential pressure can be conservatively simplified to a straight line. According to the analysis results, the allowable value of the support load and the calculation method of bearing capacity of structural stability were given, which can be used as a reference for design of corrugated steel utility tunnels. © 2022, Editorial Office of Journal of Building Structures. All right reserved.
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页码：239 / 244
页数：5
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