国家自然科学基金资助项目（51568005）；广西自然科学基金资助项目（2013GXNSFBA019236）；广西科技攻关计划（桂科攻12426001-5）；"广西工程防灾与结构安全重点实验室"和"防灾减灾与工程安全教育部重点实验室"项目（2013ZDX10）；2017年广西大学实验室建设和实验教学改革项目。
ZHANG Yongbing
College of Civil and Architectural Engineering, Guangxi University, Nanning 530004, P. R. China;Key Laboratory of Disaster Prevention and Structural Safety of China Ministry of Education, Guangxi University, Nanning 530004, P. R. China;Guangxi Key Laboratory of Disaster Prevention and Structural Safety, Guangxi University, Nanning 530004, P. R. ChinaZHOU Mingjun
College of Civil and Architectural Engineering, Guangxi University, Nanning 530004, P. R. China;Key Laboratory of Disaster Prevention and Structural Safety of China Ministry of Education, Guangxi University, Nanning 530004, P. R. China;Guangxi Key Laboratory of Disaster Prevention and Structural Safety, Guangxi University, Nanning 530004, P. R. ChinaZHENG Lei
College of Civil and Architectural Engineering, Guangxi University, Nanning 530004, P. R. China;Key Laboratory of Disaster Prevention and Structural Safety of China Ministry of Education, Guangxi University, Nanning 530004, P. R. China;Guangxi Key Laboratory of Disaster Prevention and Structural Safety, Guangxi University, Nanning 530004, P. R. China为了对填充墙RC框架结构在设防大震下的抗震能力进行评估，采用OpenSees有限元软件，建立了填充墙RC框架结构的数值模型，其中，梁柱构件采用基于改进IMK恢复力模型的集中塑性铰单元进行建模，填充墙用双对角斜撑受压杆模拟，并采用基于Clough模型的桁架单元建模。以填充墙的不同布置方式作为参数，设计了4种模型，对模型进行了44条地震波下的增量动力时程分析和倒塌易损性分析。结果表明，底层不布置填充墙的模型和底部两层各有一跨布置填充墙的模型不满足我国规范中"大震不倒"的性能要求，在实际工程中应尽量避免运用此类型的框架结构，需要对已有的此类结构进行加固处理。
In order to evaluate the seismic performance of infilled reinforced concrete frame building in strong earthquakes, numerical models are established in OpenSees. The column or beam components are simulated by concentrated plastic hinge element based on the modified Ibarra-Medina-Krawinkler model while the infills are simulated by a pair of compression-only struts based on the Clough model. With the different arrangements of the infills, four frame models are designed, the incremental dynamic analysis of 44 seismic records and the fragility analysis are carried out. The analysis shows that the first model and the fourth model cannot satisfied the seismic performance requirements of national codes in frame building subjected to strong earthquakes, this type of frame buildings should be avoided or reinforced.
张永兵,周明军,郑磊.基于改进IMK恢复力模型的填充墙RC框架结构地震易损性分析[J].重庆大学学报,2018,41(3):67-75.
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