| 引用本文: | 吕大刚,于晓辉,陈志恒.钢筋混凝土框架结构侧向倒塌地震易损性分析[J].哈尔滨工业大学学报,2011,43(6):1.DOI:10.11918/j.issn.0367-6234.2011.06.001 |
| L Da-gang,YU Xiao-hui,CHEN Zhi-heng.Lateral seismic collapse fragility analysis of RC frame structures[J].Journal of Harbin Institute of Technology,2011,43(6):1.DOI:10.11918/j.issn.0367-6234.2011.06.001 |
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| 摘要: |
| 为研究钢筋混凝土框架结构在地震作用下的侧向倒塌易损性,采用多地震动增量动力分析方法,用FEMA准则和结构有限元计算失稳作为结构侧向倒塌能力点的确定准则,分析得到一栋5层3跨钢筋混凝土框架结构的侧向倒塌易损性曲线.结果表明:FEMA准则对结构侧向倒塌定义偏于保守.在大震作用下,结构倒塌风险较小. |
| 关键词: 地震易损性 侧向倒塌 倒塌易损性 增量动力分析 |
| DOI：10.11918/j.issn.0367-6234.2011.06.001 |
| 分类号: |
| 基金项目:国家自然科学基金重大研究计划(90715021),国家自然科学基金资助项目(50978080);地震行业科研专项基金资助项目(200808073) |
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| Lateral seismic collapse fragility analysis of RC frame structures |
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L Da-gang, YU Xiao-hui, CHEN Zhi-heng
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School of Civil Engineering,Harbin Institute of Technology,150090 Harbin,China
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| Abstract: |
| To study the lateral seismic collapse fragility of RC frame structures,multi-record incremental dynamic analysis method is utilized to get the lateral seismic collapse fragility curves of a three-bay and five-storey RC frame building,in which the FEMA-rule and computational non-convergence are taken as a rule of lateral collapse of structures.The results demonstrate that the FEMA-rule is conservative to determine lateral collapse.Under the major earthquake,the structural collapse risk is limited. |
| Key words: seismic fragility lateral collapse collapse fragility incremental dynamic analysis |
