Experimental study on mechanical performance of bolted-cover plate inter-module connections

被引：0
|
作者：
Cao K. [1 ]
Zhai S. [2 ]
Wang W. [2 ]
机构：
[1] School of Management Science and Real Estate, Chongqing University, Chongqing
[2] College of Civil Engineering, Chongqing University, Chongqing
来源：
Jianzhu Jiegou Xuebao/Journal of Building Structures | 2023年 / 44卷 / 06期
关键词：
design suggestion; inter-module connection; mechanical performance; numerical simulation; static test;
D O I：
10.14006/j.jzjgxb.2022.0623
中图分类号：
学科分类号：
摘要：
Nine full-scale inter-module connections were designed and subjected to monotonic and cyclic loading in order to investigate their load-bearing and energy dissipation performance. The effects of different connection constructions, different bolt hole types, and different loading methods on the behavior of the connection were investigated. Moreover, the stress and deformation characteristics of the connections were analyzed. Then, refined finite element models of connections were established, and the parameters were analyzed after experimental verification. According to the stress characteristics of the connections, a simplified formula of yield bending moment was given and verified. The experimental results indicate the beam flange fracture or weld tear control the failure mode of the specimen. The bearing capacity and stiffness of the middle connections are approximately twice that of the corner connections. Earthquake action would significantly reduce the ductility of connections. The bolted connection with dual-slot hole has favorable load-bearing capacity and stable energy dissipation capacity. Moreover, it improves the error sensitivity of splicing between modules. The proposed simplified method can accurately predict the yield moments of the considered inter-module connections. © 2023 Science Press. All rights reserved.
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页码：81 / 93
页数：12
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