Cable-bracing inerter system and its application in steel structure subjected to bi-directional ground motions

被引：0
|
作者：
Kang J. [1 ]
Xue S. [1 ,2 ]
Xie L. [1 ]
机构：
[1] Department of Disaster Mitigation for Structures, Tongji University, Shanghai
[2] Department of Architecture, Tohoku Institute of Technology, Sendai
来源：
Jianzhu Jiegou Xuebao/Journal of Building Structures | 2023年 / 44卷 / 03期
关键词：
bi-directional ground motion; cable-bracing inerter system; damping performance; OpenSees; steel structure;
D O I：
10.14006/j.jzjgxb.2021.0718
中图分类号：
学科分类号：
摘要：
Recently, the inerter systems have received widespread attention from scholars as an efficient passive damping system. Among the inerter systems, the cable-bracing inerter system (CBIS) benefits from cross-layer convenience and has significant economic advantages. In order to investigate the damping performance of the CBIS under the action of bi-directional ground motions, a bidirectional vibration control method for the CBIS and a practical design process were proposed. The lever mechanism was used to simulate the steering characteristics of the cable-bracing system, and the topological combination of the elements was used to simulate the inerter system. The finite element model of CBIS was implemented in OpenSees. The performance of the cross-layer installed CBIS used in a real-world steel structure was evaluated in both directions using ground motion data measured at the site. The finite element calculation results show that the developed finite element model of the CBIS can well represent the efficiency of displacement transfer and characteristics of inerter. The effective bi-directional damping performance and the significant damping efficiency of the CBIS designed based on equivalent parameters are verified, providing a basis for further practical use of the CBIS. © 2023 Science Press. All rights reserved.
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页码：11 / 19
页数：8
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