Performance study of frictional prefabricated connection nodes in self-centering braced steel frame

被引：1

作者：

Xu, Long-He ^{[1
]}

Huang, Chu-Cheng ^{[1
]}

Xie, Xing-Si ^{[1
]}

机构：

[1] School of Civil Engineering, Beijing Jiaotong University, Beijing

来源：

Zhendong Gongcheng Xuebao/Journal of Vibration Engineering | 2024年 / 37卷 / 07期

关键词：

frictional energy dissipation; hysteretic response; prefabricated assembly; seismic performance; self-centering braced connection nodes;

D O I：

10.16385/j.cnki.issn.1004-4523.2024.07.016

中图分类号：

学科分类号：

摘要：

Self-centering brace has greater stiffness and bearing capacity after being activated. The brace connection，beam and column are subjected to more complex forces and higher risk of damage. A novel frictional prefabricated connection node in self-centering braced steel frame is proposed to control ultimate axial force of the self-centering brace by frictional slipping. It provides additional energy dissipation for the whole structure. Configuration，assembly and working principles of the connection nodes are described. By numerical simulation，its seismic performance is studied. The effects of design parameters of the connection node on performance are analyzed. The results show that the hysteretic response of the self-centering braced steel frame with the novel connection node is fuller. The energy dissipation capacity of the overall structure is increased by 20.81%. The actual limiting effect of the connection node on total shear force reaches 17.56%，effectively regarding the plastic development of connection node region. By changing the friction coefficient of the friction plate and the preload force of the high-strength bolts of the connection node，the slipping displacement and force can be adjusted. © 2024 Nanjing University of Aeronautics an Astronautics. All rights reserved.

引用

页码：1239 / 1249

页数：10

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