FRAGILITY ANALYSIS METHOD FOR IRREGULAR PLAN REINFORCED CONCRETE FRAME STRUCTURES

摘要：

This paper concentrates on the fragility analysis method for irregular plan reinforced concrete frame structures. Inter-torsion angle of stories is deduced base on the rule of irregular plan structures in China tall building technical specification. Then five states are established to distinguish the structural seismic performance levels,which are expressed with inter-torsion angle. Through the nonlinear dynamic analysis and linear regress,the probability function of seismic response of structures is obtained and a new fragility analysis method is put forward for irregular plan frame structures. Considering different unit model and different hysteretic model,selecting forty earthquake records,one hundred and twenty structure-earthquake system samples are obtained for irregular plan reinforced concrete frame. Example is presented to demonstrate the applicability and utility of the proposed methodology. Seismic performances of an irregular plan reinforced concrete frame structure are evaluated in detail. It is concluded that with the torsion displacement ratio increases,fragility curves becomes more gently and the structural performance level,the structural seismic behavior vary much with the change of the torsion displacement ratio and the input earthquake motion intensity.

关键词： Fragility analysis Irregular plan structure Seismic performance evaluation

作者: Jin-Jie Men Qing-Xuan Shi Qi Zhou

作者单位: College of Civil Engineering,Xian University of Architecture and Technology,Xian 710055,P.R. China College of Civil Engineering,Xian University of Architecture and Technology,Xian 710055,P.R.China

会议类型: 国际会议

会议名称: The Eleventh International Symposium on Structural Engineering(第十一届结构工程国际研讨会)

会议地点: 广州

会议语种:英文

页码: 39-44

在线出版日期: 2010-12-01（万方平台首次上网日期，不代表论文的发表时间）