基于震害资料的四川省藏式房屋地震易损性研究
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摘要
搜集自开展地震灾害直接损失评估以来,四川境内破坏性地震震害资料,统计省内藏式房屋在不同烈度不同破坏等级下的破坏比,给出易损性矩阵;采用房屋结构整体易损性分析方法,依据藏式房屋易损性矩阵,通过烈度与地震动参数的对应关系,以对数正态分布函数为模型,对藏式房屋在不同地震动参数(峰值速度)下超越毁坏、破坏、基本完好的概率曲线进行拟合,给出易损性曲线,为其他结构类型房屋的易损性研究、灾害损失评估工作及震害预测提供参考。
Based on the seismic hazard information about destructive earthquakes happened in Sichuan province since the implementation of seismic loss assessment, this article created a vulnerability matrix of Tibetan folk houses by analyzing their destruction ratio under different intensities and damage degrees; adopting methods of analyzing building structure vulnerability and log-normal distribution model, based on vulnerability matrix of Tibetan folk houses and the relationship between seismic intensity scales and ground-motion parameters, this article created a vulnerability curve by doing the probability curve fitting of Tibetan folk houses in the condition of being devastated, damaged and almost unaffected by earthquake under different seismic ground-motion parameters( at peak velocity), which provided references for vulnerability study of other building structures,seismic loss assessment and hazard prediction.
Based on the seismic hazard information about destructive earthquakes happened in Sichuan province since the implementation of seismic loss assessment, this article created a vulnerability matrix of Tibetan folk houses by analyzing their destruction ratio under different intensities and damage degrees; adopting methods of analyzing building structure vulnerability and log-normal distribution model, based on vulnerability matrix of Tibetan folk houses and the relationship between seismic intensity scales and ground-motion parameters, this article created a vulnerability curve by doing the probability curve fitting of Tibetan folk houses in the condition of being devastated, damaged and almost unaffected by earthquake under different seismic ground-motion parameters( at peak velocity), which provided references for vulnerability study of other building structures,seismic loss assessment and hazard prediction.
引文
[1] M. Altug Erberik,Generation of fragility curves for Turkish masonry buildings considering in-plane failure modes[J].Earthquake engineering and structural dynamics. 2008(37):387–405.
[2] Elif M.Un,M. Altug Erberik,Aysegul Askan,Performance Assessment of Turkish Residential Buildings for Seismic Damage and Loss Estimation[J],J. Perform. Constr. Facil.,2015,29(2):04014063.
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[5]温增平,胡聿贤.基于震害资料的易损性分析方法[C]//第五届全国地震工程学术会议论文集,北京:1998:243-248.
[6]韩淼,刘建兵.典型工程结构地震区划概率水准的研究[J].北京建筑工程学院学报,2009,25(01):21-25.
[7]刘如山,胡少卿,邬玉斌,等.基于地震动参数的结构易损性表达方法研究[J].地震工程与工程振动,2009,29(06):102-107.
[8]叶肇恒,宴金旭,杨璐遥.四川省藏式民居震害特征研究[J].四川地震,2017,41(04):24-29.
[9]叶肇恒,宴金旭,毛利,等.川滇交界东部地区房屋震害特征研究[J].华南地震,2017,37(1):89-96.
[2] Elif M.Un,M. Altug Erberik,Aysegul Askan,Performance Assessment of Turkish Residential Buildings for Seismic Damage and Loss Estimation[J],J. Perform. Constr. Facil.,2015,29(2):04014063.
[3]国家质量技术监督局.中国地震烈度表(CB/T17742-2008)[S].北京:中国标准出版社, 2008.
[4]国家质量技术监督局.地震现场工作第4部分:灾害直接损失评估(GB/T 18208.4-2011)[S].北京:中国标准出版社2011.
[5]温增平,胡聿贤.基于震害资料的易损性分析方法[C]//第五届全国地震工程学术会议论文集,北京:1998:243-248.
[6]韩淼,刘建兵.典型工程结构地震区划概率水准的研究[J].北京建筑工程学院学报,2009,25(01):21-25.
[7]刘如山,胡少卿,邬玉斌,等.基于地震动参数的结构易损性表达方法研究[J].地震工程与工程振动,2009,29(06):102-107.
[8]叶肇恒,宴金旭,杨璐遥.四川省藏式民居震害特征研究[J].四川地震,2017,41(04):24-29.
[9]叶肇恒,宴金旭,毛利,等.川滇交界东部地区房屋震害特征研究[J].华南地震,2017,37(1):89-96.