竖向杆系构件地震损伤的模糊评估方法  

Fuzzy evaluation method for seismic damage to vertical members

作　　者：刘杨[1,2] 李忠献[1,2] 丁阳[1,2] 

机构地区：[1]天津大学建工学院,天津300072 [2]天津市土木工程结构及新材料重点实验室,天津300072

出　　处：《地震工程与工程振动》2010年第2期45-50,共6页Earthquake Engineering and Engineering Dynamics

基　　金：国家自然科学基金重大研究计划重点支持项目(90715032;90815025);天津市应用基础与前沿技术研究计划重点项目(09JCZDJC25200)

摘　　要：由于构件地震损伤是具有模糊性的,且会受到多方面因素的影响,故在模糊数学基础上,建立了竖向杆系构件地震损伤评判模型。同时对构件地震损伤评判模型中的隶属度函数确定、评判因素权重值计算及评判模型运用等核心问题,进行了深入的研究与探讨。为方便工程应用,提出了构件地震损伤程度指数的计算公式。文末算例表明,所建议的构件地震损伤模糊综合评判模型,计算简便,结果有效可靠。To some extent seismic damage to structure members is fuzzy and affected by multi-factor,so a comprehensive evaluation model for damage to vertical frame members is proposed on the basis of fuzzy mathematics.Some researches are carried out explicitly on the key points,such as the determination of membership degree functions, the calculation of judging factor weight in judging models and the application of them.For the convenience in engineering practice,a calculating formula is also derived to define the index of seismic damage to members.At last, analytical examples show that the proposed evaluation model is of high accuracy and efficiency.

关 键 词：构件 地震损伤 损伤评估 模糊综合评判 

分 类 号：TU311[建筑科学—结构工程] P315.95[天文地球—地震学]