弹性(材料科学)
结构工程
屋顶
张力(地质)
帧(网络)
非线性系统
空格(标点符号)
地震分析
工程类
计算机科学
机械工程
材料科学
物理
量子力学
冶金
复合材料
极限抗拉强度
操作系统
作者
Tong Guo,Jishuai Wang,Xinqiang Ji,Lei Song,Yu Sun,Yunwen Zhang
出处
期刊:Journal of Structural Engineering-asce
[American Society of Civil Engineers]
日期:2024-03-01
卷期号:150 (3)
标识
DOI:10.1061/jsendh.steng-13024
摘要
A variety of self-centering devices and structural systems have been proposed and investigated in recent years to eliminate or reduce postearthquake repair, but so far their applications are still very limited. This paper reports the seismic resilience enhancement of an irregular space structure by using friction-damped self-centering tension braces (FSTBs). First, the configuration, performance, and numerical model of FSTBs are introduced, and then a seismic design procedure for enhancing the seismic capacity of a torsional irregular structure is proposed. Taking the terminal building at the Harare Airport, a lifeline project in Zimbabwe, for example, unidirectional and three-dimensional nonlinear dynamic analyses were conducted on the building designed with and without FSTBs. The result shows that FSTBs can significantly reduce both story drifts and residual story drifts of the bottom reinforced concrete frame and displacements of the steel roof. To this end, the field assembly of FSTBs is briefly reported. The presented study provides references to the use of self-centering devices in seismic resilience upgrades of important engineering projects.
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