基于构件性能的SRC框架结构抗震性能评估研究  

Seismic performance assessment of SRC frame structures based on component performance

作　　者：王秋维[1,2] 梁林 王璐 续强 WANG Qiuwei;LIANG Lin;WANG Lu;XU Qiang(School of Civil Engineering,Xi’an University of Architecture&Technology,Xi’an 710055,China;Key Lab of Structural Engineering and Earthquake Resistance of the Ministry of Education,Xi’an University of Architecture and Technology,Xi’an 710055,China)

机构地区：[1]西安建筑科技大学土木工程学院,西安710055 [2]西安建筑科技大学结构工程与抗震教育部重点实验室,西安710055

出　　处：《世界地震工程》2024年第4期51-61,共11页World Earthquake Engineering

基　　金：国家自然科学基金资助项目(51878543);陕西省教育厅协同创新中心项目(23JY043)。

摘　　要：针对位移抗震性能设计的不足,现行规范采用构件损伤程度补充评估结构的抗震性能,但对于型钢混凝土(steel reinforced concrete,SRC)框架结构,其在各性能水平下的损伤构件比例未有明确规定。在此背景下,提出了SRC框架的构件性能状态与结构性能水准的对应关系,建立了基于构件性能的SRC框架结构抗震性能评估方法。对不同高度和抗震设防烈度的SRC框架结构模型进行增量动力分析(incremental dynamic analysis,IDA),明确了结构的层间位移角和构件损伤分布,通过统计多条地震波下结构不同极限状态的构件破坏比例,建立用于体型规则SRC框架结构抗震评估的构件性能指标,并进一步采用地震易损性分析对结构抗震性能进行了评估。Considering the deficiency of displacement-based seismic performance design,the damage degree of components is used to evaluate the seismic performance of structures in the current code.However,the proportion of damaged components at different performance levels has not been clearly specified for steel-reinforced concrete(SRC)frame structures at different performance levels.Against this background,the correspondence between the structural performances and the member properties is proposed for SRC frames,and the seismic performance evaluation method based on the component behavior of SRC frame structures is established.The incremental dynamic analysis(IDA)method was used to analyze eleven SRC frame structures with different heights and seismic intensity,and the inter-story drift ratio and component damage distribution under multiple seismic waves were discussed.According to the distribution statistics of damaged members proportion under the limit state of each performance level,the component performance indicators for evaluating the seismic performance of SRC frame structures with regular shape were established,and the seismic susceptibility analysis was adopted to evaluate the seismic performance of SRC frame structures.

关 键 词：型钢混凝土(SRC) 框架结构 基于构件性能 增量动力分析(IDA) 抗震性能评估 

分 类 号：TU973.31[建筑科学—结构工程]