可更换抗侧耗能装置的钢框架结构地震易损性分析

张爱林; 杨硕; 姜子钦; 张文莹; 刘杰; 杨晓峰

doi:10.13204/j.gyjzG21122104

可更换抗侧耗能装置的钢框架结构地震易损性分析

doi: 10.13204/j.gyjzG21122104

张爱林^1,2,3,
杨硕¹,
姜子钦^1,2, ,,
张文莹¹,
刘杰¹,
杨晓峰¹

1. 北京工业大学建筑工程学院, 北京 100124;
2. 北京工业大学, 北京市高层和大跨度预应力钢结构工程技术研究中心, 北京 100124;
3. 北京建筑大学, 北京未来城市设计高精尖创新中心, 北京 100044

基金项目:

国家自然科学基金项目(52078013)。

详细信息

作者简介:
张爱林,男,1961年出生,教授,博士生导师。

通讯作者:
姜子钦,男,1988年出生,教授,jzqbj2010@163.com。

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- 被引次数: 0
出版历程
- 收稿日期: 2021-12-21

Seismic Fragility Analysis of Steel Frame Structure with Lateral Resistance Energy-Consuming Device

1. College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China;
2. Beijing Engineering Research Center of High-Rise and Large-Span Prestressed Steel Structure, Beijing University of Technology, Beijing 100124, China;
3. Beijing Advanced Innovation Center for Future City Design, Beijing University of Civil Engineering and Architecture, Beijing 100044, China

摘要

摘要: 对可更换抗侧耗能装置的钢框架结构体系构造进行阐述,建立可更换抗侧耗能装置的柱脚节点有限元模型并验证其正确性。在此基础上建立可更换抗侧耗能装置的钢框架结构有限元模型,采用22条地震波分别对传统刚接框架结构(RSF)和可更换抗侧耗能装置的钢框架结构(LRED-SF)进行基于增量动力分析方法(IDA)的地震易损性分析,对比两种结构的易损性曲线和抗倒塌储备系数,并分析抗侧剪切件截面宽度、厚度和柱脚横梁刚度比对可更换抗侧耗能装置的钢框架结构地震易损性的影响。研究表明:经过合理设计的可更换抗侧耗能装置的钢框架结构不仅可以满足结构的抗震性能要求,而且其抗震性能优于传统钢框架结构体系;抗侧剪切件宽度越大,结构抗倒塌能力越强,但当抗侧剪切件宽度增加到一定程度时,结构抗倒塌能力会下降;柱脚横梁刚度比越大,结构抗倒塌能力越强。
- 可恢复功能 /
- 钢框架结构 /
- IDA /
- 易损性 /
- 抗倒塌储备系数
Abstract: The steel frame structure with lateral resistance energy-consuming device (LRED-SF) is first introduced. The finite element model of the earthquake-resilient prefabricated column foot joints with lateral resistance energy-consuming device was established and its correctness was verified. And then the finite element model of LRED-SF was established. Based on the incremental dynamic analysis method (IDA), the seismic fragility analysis with 22 seismic waves was carried out on the rigid steel frame (RSF) and LRED-SF. The seismic fragility curves and the structural collapse margin ratio (CMR) of the two structures were compared. The influence of the width and thickness of the lateral resistance shear member (LRSM) and the stiffness ratio of the beam of LRSM on the seismic fragility of LRED-SF was analyzed. The result showes that the seismic performance of LRED-SF is better than RSF. The structural collapse resistance is positively related to the width of LRSM and the stiffness ratio of the beam of LRSM. However, when the width of LRSM increases to a certain extent, the collapse resistance of the structure will decrease.
- recoverable function /
- steel frame structure /
- IDA /
- fragility /
- collapse margin ratio

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参考文献(22)

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