Fragility Analysis Method For Irregular Plan Reinforced Concrete Frame Structures

Release time:2024-08-09  Hits:

• Affiliation of Author(s):土木工程学院
• Journal:The 11th International Symposium on Structural Engineering
• Key Words:中文关键字：易损性分析；平面不规则结构；抗震性能评估，英文关键字：fragility analysis, irregular plan structure, seis
• Abstract: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.
• Note:门进杰
• Co-author:周琦
• First Author:shiqingxuan,menjinjie
• Indexed by:Journal paper
• Volume:卷：
• Issue:期：
• Page Number:页：626-631
• Translation or Not:no
• Date of Publication:2010-12-01