[1]高和平.近场地震下钢框架结构地震易损性分析[J].华南地震,2022,(01):147-152.[doi:10.13512/j.hndz.2022.01.20]
　GAO Heping.Seismic Vulnerability Analysis of Steel Frame Structures Under Near-field Earthquake[J].,2022,(01):147-152.[doi:10.13512/j.hndz.2022.01.20]
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近场地震下钢框架结构地震易损性分析()
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华南地震[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2022年01期
页码:
147-152
栏目:
土木工程防震减灾
出版日期:
2022-03-30

文章信息/Info

Title:
Seismic Vulnerability Analysis of Steel Frame Structures Under Near-field Earthquake
文章编号:
1001-8662（2022）01-0147-06
作者:
高和平
核工业西南勘察设计研究院有限公司，成都 610000
Author(s):
GAO Heping
Nuclear Industry Southwest Survey ， Design and Research Institute Co.， Ltd.， Chengdu 610000， China
关键词:
钢框架结构; 近场地震; 数值模拟; 增量动力分析; 地震易损性
Keywords:
Steel frame structure; Near-field earthquake; Numerical simulation; Incremental dynamic analysis; Seismic vulnerability
分类号:
TU375
DOI:
10.13512/j.hndz.2022.01.20
文献标志码:
A
摘要:
为阐明近场地震速度脉冲效应对周期较长的钢框架抗震性能的影响规律，采用增量动力分析（IDA）方法，对符合我国现行设计规范的三个不同设防水平的钢框架结构进行了地震易损性分析，并对比分析了其在近、远场地震下的地震易损性差异。结果表明：近场地震作用的速度脉冲效应将放大钢框架结构的动力响应，并增大其概率地震需求模型的不确定性；相同地震强度下，近场地震作用的速度脉冲效应将增大钢框架结构的损伤破坏概率，且周期较长的低设防水平钢框架结构在近场地震作用下更易损伤破坏；鉴于近场地震对钢框架结构地震易损性的显著影响，建议评估钢框架结构的震害风险时，应针对近场和远场地震作用分别建立易损性模型。
Abstract:
In order to illustrate the impact of the near-field earthquake velocity pulse effect on seismic performance of the steel frame structure with a long period， the seismic vulnerability of three steel frame structures with different fortification levels in accordance with the current design code of China is analyzed by the incremental dynamic analysis (IDA) method， and the seismic vulnerability difference under near-field and far-field earthquakes is compared. The results show that the velocity pulse effect of the near-field earthquake will amplify the dynamic response of steel frame structure and increase the uncertainty of the probability demand model；under the same earthquake intensity， the velocity pulse effect of the near-field earthquake will increase the damage probability of steel frame structure， and the steel frame structure with a long period and low fortification level is more vulnerable under the near-field earthquake； In view of the significant impact of near-field earthquakes on the seismic vulnerability of steel frame structures， it is recommended that vulnerability models should be established separately for near-field and far-field earthquakes when assessing the seismic damage risk of steel frame structures.

参考文献/References:

[1]刘强，王妙芳，严通梅.近断层地震作用下钢筋混凝土连续梁桥地震易损性分析[J].力学与实践，2017，39（1）：40-44.
[2] Kinali Kursat，Ellingwood Bruce R. Seismic fragility ass-essment of steel frames for consequence-based engineering：A case study for Memphis，TN[J]. Engineering Structures. 2007，29（6）：1115-1127.
[3]王丹.钢框架结构的地震易损性及概率风险分析[D].哈尔滨：哈尔滨工业大学，2006.
[4]马康.基于节点失效特征的钢框架地震易损性分析研究[D].南京：东南大学，2017.
[5]崔瑶，刘浩，王枫智，等.考虑柱脚转动刚度的多层钢框架易损性分析[J].建筑钢结构进展，2019，21（3）：33-39.
[6] Cornell C A，Jalayer F，Hamburger R O，et al. Probabilistic basis for 2000 SAC Federal Emergency Management Agency steel moment frame guidelines[J]. Journal of Structural Engineering，2002，128（4）：526-533.
[7] Applied Technology Council for the Federal Emergency Management Agency. Quantification of building seismic per-formance factors：FEMA P-695[S]. Washington，D. C.：Applied Technology Council for the Federal Emergency Management Agency，2009.
[8]吕大刚.基于云图-条带法的概率地震需求分析与地震易损性分析[J].工程力学，2016（6）:68-76.
[9]李永梅，李玉占，杨博颜.基于性能的钢框架结构地震易损性分析[J].工程抗震与加固改造，2017，39（4）：55-59+46.

备注/Memo

备注/Memo:
收稿日期：2021-08-30
作者简介：高和平（1984-），男，高级工程师，主要研究方向：建筑结构及地基基础设计与研究等。E-mail：zaipvxj568@163.com
更新日期/Last Update: 2022-03-30