[1]刘小换,王伊立,丁景花,等.基于虚拟激励法的混合减震结构抗震可靠度分析[J].华南地震,2024,(03):119-126.[doi:10.13512/j.hndz.2024.03.13]
 LIU Xiaohuan,WANG Yili,DING Jinghua,et al.Seismic Reliability Analysis of Hybrid Damping Structure Based on Pseudo Excitation Method[J].,2024,(03):119-126.[doi:10.13512/j.hndz.2024.03.13]
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基于虚拟激励法的混合减震结构抗震可靠度分析()
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华南地震[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2024年03期
页码:
119-126
栏目:
土木工程防震减灾
出版日期:
2024-09-30

文章信息/Info

Title:
Seismic Reliability Analysis of Hybrid Damping Structure Based on Pseudo Excitation Method
文章编号:
1001-8662(2024)03-0119-08
作者:
刘小换12王伊立1丁景花1刘 辉1
1.广州科技职业技术大学建筑工程学院,广州 510550;2.广州大学工程抗震研究中心,广州 510405
Author(s):
LIU Xiaohuan12WANG Yili1DING Jinghua1LIU Hui1
1.School of Architectural Engineering , Guangzhou Vocational University of Science and Technology , Guangzhou 510550, China;2.Earthquake Engineering Research&Test Center , Guangzhou University , Guangzhou 510405, China
关键词:
混合减震虚拟激励法随机地震响应动力可靠度设计基准期
Keywords:
Hybrid dampingPseudo excitation method(PEM)Random seismic responseDynamic reliabilityDesign reference period
分类号:
TU352.1
DOI:
10.13512/j.hndz.2024.03.13
文献标志码:
A
摘要:
基于虚拟激励法和可靠度理论分析了混合减震结构在罕遇地震作用下的平稳随机地震响应和动力可靠度。以一栋10层框架剪力墙结构为数值算例,隔震层由隔震支座和粘滞阻尼器组成,采用Clough-Penzien双过滤功率谱模型,通过虚拟激励法分析结构在8度和9度罕遇地震下的随机动力响应,根据可靠度理论,采用当量正态化法计算结构各层可靠度指标由此得到结构的可靠度,最后根据我国抗震规范“两阶段,三水准”设计原则,分析了结构在设计基准期(50年)内的动力可靠度。结果表明:罕遇地震作用下隔震层变形较大,采用混合隔震能够有效降低隔震层的位移响应,使结构在随机地震作用下的整体可靠度得到显著提高,在设计基准期内,隔震层的失效是一个比较突出的问题,在工程设计时应采取有效的限位保护措施。
Abstract:
The stationary random seismic response and dynamic reliability of the hybrid damping structure under rare earthquakes were analyzed by the pseudo excitation method and reliability theory. A 10-story frame-shear wall structure was taken as a numerical example, whose isolation layer consisted of rubber bearings and viscous dampers. The Clough-Penzien double-filtered power spectrum model was used to analyze the random dynamic response under rare earthquakes of eight and nine degrees by the pseudo excitation method. According to the reliability theory, the equivalent normalization method was used to calculate the reliability index of each story to obtain the reliability of the structure. Finally,according to the design principle of “two stages and three levels”in Chinese earthquake-resistant code, the dynamic reliability of the structure in the design reference period(50 years)was analyzed. The results show that the deformation of the isolation layer is large under rare earthquakes, and hybrid damping can effectively reduce the displacement response of the isolation layer and improve the overall reliability of the structure under random earthquakes. During the design reference period, the failure of the isolation layer is a prominent problem, and effective limit protection measures should be taken in engineering design.

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备注/Memo

备注/Memo:
收稿日期:2024-01-02
基金项目:广东省普通高校青年创新人才项目(2022KQNCX148);广州科技职业技术大学校级课题(2024LG01)联合资助。
作者简介:刘小换(1990-),女,硕士研究生,讲师,主要从事工程减隔震控制。E-mail:liuxiaohuan410@163.com
更新日期/Last Update: 2024-09-30