RC框架结构损伤指标研究  

Damage index of RC frame structure

作　　者：李维涛[1,2] 鞠杨[3] 应惠清[1] 

机构地区：[1]同济大学土木工程学院,上海200092 [2]上海市建筑科学研究院(集团)有限公司,上海200032 [3]中国矿业大学力建学院,北京100083

出　　处：《哈尔滨工业大学学报》2009年第4期204-207,共4页Journal of Harbin Institute of Technology

基　　金：国家自然科学基金资助项目(19702021)

摘　　要：为了对地震力下框架结构损伤程度进行定量描述,从框架结构刚度退化入手,提出了构件层次上的损伤指标.借助于构件层次上的损伤指标和线性加权的方法进而建立了整个框架结构的损伤模型.采用建立的框架结构损伤模型对一框架结构在地震力下损伤情况进行了分析,获得了地震力下框架结构损伤发展趋势.本文所提出的损伤模型可以对地震力下框架结构损伤情况进行定量描述,为框架结构损伤评估提供一种新的方法.In order to quantitatively describe the damage degree of RC flame structure under earthquake force, a damage index on component of structure is proposed based on the degradation of rigidness of component. By dint of this damage index and solution of linear weight, a damage model of the whole RC flame structure is proposed. The damage model is applied to the evaluation on damage degree of RC frame structure and the damage development trend under earthquake force is obtained. The damage model proposed can be used to quantitatively describe the damage degree of RC flame structure under earthquake force, which provides a new method for damage assessment of RC flame structure.

关 键 词：损伤指标 损伤模型 刚度退化 

分 类 号：TU375.1[建筑科学—结构工程]