框架结构群体震害易损性快速评估研究
|
摘要
钢筋混凝土框架结构作为城镇中使用最广泛的建筑之一,在汶川地震中不同使用用途框架表现的抗震能力差异较大,因此建议在地震震害评估中,应将结构按结构型式和使用用途进行分类。在此分类基础上,研究出一种简便实用的地震群体易损性分析方法,不需要了解结构详细力学参数,影响结构抗震能力的主要因素参数从房屋普查资料中即可获得,将模糊相似理论引入到群体易损性分析中,并与能力谱方法相结合应用于框架结构中,可在震后第一时间快速评估出不同使用用途的框架群体的震害情况,分析结果满足精度要求。最后,以某地区工业类框架结构为例,得到了该类框架结构的易损性矩阵,验证了方法的实用性和准确性。
A reinforced concrete frame is used as one of the most common structures in cities and towns.Wen Chuan Earthquake showed that frames for different uses had great difference in a seismic capacity.So,it was suggested that structures should be classified in terms of their structural type and usage for their seismic damage evaluation.A group vulnerability analysis approach based on the classification was put forward.It didn't require to know the detailed mechanical parameters of all the structures.Fuzzy similarity theory was introduced in group vulnerability analysis.The latter was applied in frame structures combined with capacity spectrum method.With then,earthquake disaster of group structures could be evaluated rapidly and reliably.The results met accuracy requirement.Finally,a case study of industrial frames verified the feasibility and effectiveness of the proposed method.A vulnerability matrix of industrial frames group was obtained.
A reinforced concrete frame is used as one of the most common structures in cities and towns.Wen Chuan Earthquake showed that frames for different uses had great difference in a seismic capacity.So,it was suggested that structures should be classified in terms of their structural type and usage for their seismic damage evaluation.A group vulnerability analysis approach based on the classification was put forward.It didn't require to know the detailed mechanical parameters of all the structures.Fuzzy similarity theory was introduced in group vulnerability analysis.The latter was applied in frame structures combined with capacity spectrum method.With then,earthquake disaster of group structures could be evaluated rapidly and reliably.The results met accuracy requirement.Finally,a case study of industrial frames verified the feasibility and effectiveness of the proposed method.A vulnerability matrix of industrial frames group was obtained.
引文
[1]国家减灾委员会科学技术部抗震救灾专家组著.汶川地震灾害综合分析与评估[M].北京:科学出版社,2008.
[2]高杰,冯启民,张海东.城市群体建筑物震害模拟方法研究[J].震害防御技术,2007,2(2):193-200.
[3]苏启旺,孙玉平,赵世春.基于震害的多层砌体结构抗震性能评估方法[J].西南交通大学学报,2011,46(1):30-35.
[4]胡少卿,孙柏涛,王东明.基于建筑物易损性分类的群体震害预测方法研究[J].地震工程与工程振动,2010,30(3):656-659.
[5]李宏男,何浩祥.利用能力谱法对结构地震损伤评估简化方法[J].大连理工大学学报,2004,44(3):277-280.
[6]Calvi G M.A Displacement-based approach for vulnerabilityevaluation of classes of building[J].Journal of EarthquakeEngineering,1999,3(3):411-438.
[7]Kircher C A.Hazus earthquake loss estimation methods[J].Natural Hazards Review,2006,7(2):45-59.
[8]Tantala M W,Nordenson G P,Deodatis G,et al.Earthquake loss estimation for the New York city metropolitanregion[J].Soil Dynamics and Earthquake Engineering,2008(28):813-825.
[9]Song B B.Comprehensive evaluation method on earthquakedamage using fuzzy theory[J].Journal of Urban Planning andDevelopment,1996,3:1-17.
[10]孙柏涛,胡少卿.基于已有震害矩阵模拟的群体震害预测方法研究[J].地震工程与工程振动,2005,25(6):103-108.
[11]Applied Technology Council.Seismic evaluation and retrofitof concrete building[R].Redwood City(CA):AppliedTechnology Council,1996.
[12]佘娜.基于熵权的Fuzzy法在工程风险评价中的应用[J].重庆交通大学学报,2008,27(1):129-133.
[13]谢全敏.滑坡灾害评价及其治理优化决策新方法[M].武汉:武汉理工大学出版社,2008,94-107.
[14]混凝土结构设计规范算例编委会.混凝土结构设计规范算例[M].中国建筑工业出版社,2003.
[15]李英民.汶川地震建筑震害与思考[M].重庆:重庆大学出版社,2008,72-138.
[16]何浩祥,闫维明,周锡元.基于性能的钢混框架结构多元模糊地震损伤评估[J].工程抗震与加固改造,2006,28(1):100-104.
[2]高杰,冯启民,张海东.城市群体建筑物震害模拟方法研究[J].震害防御技术,2007,2(2):193-200.
[3]苏启旺,孙玉平,赵世春.基于震害的多层砌体结构抗震性能评估方法[J].西南交通大学学报,2011,46(1):30-35.
[4]胡少卿,孙柏涛,王东明.基于建筑物易损性分类的群体震害预测方法研究[J].地震工程与工程振动,2010,30(3):656-659.
[5]李宏男,何浩祥.利用能力谱法对结构地震损伤评估简化方法[J].大连理工大学学报,2004,44(3):277-280.
[6]Calvi G M.A Displacement-based approach for vulnerabilityevaluation of classes of building[J].Journal of EarthquakeEngineering,1999,3(3):411-438.
[7]Kircher C A.Hazus earthquake loss estimation methods[J].Natural Hazards Review,2006,7(2):45-59.
[8]Tantala M W,Nordenson G P,Deodatis G,et al.Earthquake loss estimation for the New York city metropolitanregion[J].Soil Dynamics and Earthquake Engineering,2008(28):813-825.
[9]Song B B.Comprehensive evaluation method on earthquakedamage using fuzzy theory[J].Journal of Urban Planning andDevelopment,1996,3:1-17.
[10]孙柏涛,胡少卿.基于已有震害矩阵模拟的群体震害预测方法研究[J].地震工程与工程振动,2005,25(6):103-108.
[11]Applied Technology Council.Seismic evaluation and retrofitof concrete building[R].Redwood City(CA):AppliedTechnology Council,1996.
[12]佘娜.基于熵权的Fuzzy法在工程风险评价中的应用[J].重庆交通大学学报,2008,27(1):129-133.
[13]谢全敏.滑坡灾害评价及其治理优化决策新方法[M].武汉:武汉理工大学出版社,2008,94-107.
[14]混凝土结构设计规范算例编委会.混凝土结构设计规范算例[M].中国建筑工业出版社,2003.
[15]李英民.汶川地震建筑震害与思考[M].重庆:重庆大学出版社,2008,72-138.
[16]何浩祥,闫维明,周锡元.基于性能的钢混框架结构多元模糊地震损伤评估[J].工程抗震与加固改造,2006,28(1):100-104.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心