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The Behavior of Welded Moment Connections in Box-Columns and Investigating Applied Demands for Different Cyclic Loading Protocols
International Journal of Steel Structures ( IF 1.5 ) Pub Date : 2021-01-06 , DOI: 10.1007/s13296-020-00449-8
M. Ghassemieh , M. Hassani Sokhtesaraei , S. R. Mirghaderi

The strength and deformation capacity of structural elements are influenced by their cumulative damages received through load cycles. Loading protocols would provide the estimation of the structural components’ capacities and a proper simulation of the seismic reality, which are used to assess the performance of connections. Given the widespread application of I-beam to box-column moment connections, the seismic performance of moment connections in the box-columns should be thoroughly investigated. However, most regulation details for the qualification of moment connections are presented for the H-shaped columns. Accordingly, in this study, 12 prequalified types of RBS and WUF-W moment connections in the box-columns are selected and analyzed under different cyclic loading scenarios. Therefore, the seismic behavior of such moment connections is studied for the drift qualifying criteria and collapse threshold when they are subjected to the SAC and ATC-24 loading protocols. Besides, energy dissipation, demand, loading protocols’ impact, and their influences are examined.



中文翻译:

箱形柱中弯矩连接的行为及对不同循环荷载方案的应用需求调查

结构元件的强度和变形能力受载荷循环中累积的损坏的影响。加载协议将提供结构部件的承载能力估计值和地震真实性的正确模拟,用于评估连接的性能。考虑到工字梁在箱形弯矩连接中的广泛应用,应彻底研究箱形弯矩在箱形弯矩连接中的抗震性能。但是,对于H型柱,给出了有关力矩连接鉴定的大多数规定。因此,在这项研究中,在不同的循环荷载情况下,选择并分析了箱形柱中的12种预限定类型的RBS和WUF-W矩连接。因此,研究了这种弯矩连接件在经受SAC和ATC-24加载方案时的漂移限定标准和坍塌阈值的抗震性能。此外,还检查了能耗,需求,加载协议的影响及其影响。

更新日期:2021-01-06
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