增量动力弹塑性分析方法的改进及其应用
|
摘要
本文主要对增量动力弹塑性分析(IDA)方法的两个方面作了改进:(1)以增量动力弹塑性分析方法的基本原理为基础,以快速非线性时程分析(FNA)方法为计算工具,形成快速增量动力弹塑性分析(FIDA)方法。(2)仅以IDA分析结果为基础,建立地震易损性曲线及地震破坏概率计算的离散型式。为了校验本文方法的可行性与有效性,应用增量动力弹塑性分析、模态增量动力弹塑性分析与快速增量动力弹塑性分析计算一个14层筒中筒结构试验模型,比较了用上述三种方法的计算误差与计算效率,比较了传统方法与本文方法计算该模型结构的地震易损性曲线的差别。
This paper describes the improvement of two key links of existing methods for Incremental Dynamic Analysis(IDA).Firstly,an efficient method named Fast Incremental Dynamic Analysis(FIDA) is developed and evaluated.Secondly,based on the IDA results,a numerical calculation method of seismic fragility curves is developed by statistical estimation method.This calculation method can reduce the uncertainty of seismic fragility curves caused by the traditional calculation method of seismic fragility curves.Finally,a 14-story RC tube in tube structure is specified as the example model to verify the improved method.The IDA calculation of the example structure using FIDA,MIDA and IDA method,and the seismic fragility curves of the example structure using the proposed method are finished.Comparison among the results reveal that the FIDA is an efficient seismic performance evaluation method,and the proposed method for computing the seismic fragility curves is more reliable than the traditional method.
This paper describes the improvement of two key links of existing methods for Incremental Dynamic Analysis(IDA).Firstly,an efficient method named Fast Incremental Dynamic Analysis(FIDA) is developed and evaluated.Secondly,based on the IDA results,a numerical calculation method of seismic fragility curves is developed by statistical estimation method.This calculation method can reduce the uncertainty of seismic fragility curves caused by the traditional calculation method of seismic fragility curves.Finally,a 14-story RC tube in tube structure is specified as the example model to verify the improved method.The IDA calculation of the example structure using FIDA,MIDA and IDA method,and the seismic fragility curves of the example structure using the proposed method are finished.Comparison among the results reveal that the FIDA is an efficient seismic performance evaluation method,and the proposed method for computing the seismic fragility curves is more reliable than the traditional method.
引文
[1]Vamvatsikos D,Cornell C A.Incremental dynamic analysis[J].Earthquake Engineering and Structural Dynamics,2002,31(3):491-514.
[2]Vamvatsikos D,Cornell C A.Direct estimation of seismic demand and capacity of multi-degree-of-freedom systems through incremental dynamic a-nalysis of single-degree-of-freedom approximation[J].ASCE Journal of Structural Engineering,2005,131(4):589-599.
[3]Mofid S,Zarfam P,Raeisi Fard B.On the modal incremental dynamic analysis[J].The Structural Design of Tall and Special Buildings,2005,14(4):315-329.
[4]Han S W,Chopra A K.Approximate incremental dynamic analysis using the modal pushover analysis procedure[J].Earthquake Engineering andStructural Dynamics,2006,35:1853-1873.
[5]Vejdani-Noghreiyan H R,Shooshtari A,Comparison of exact IDA and approximate MPA-based IDA for reinforced concrete frames[C]//The 14thWorld Conference on Earthquake Engineering,Beijing:2008.
[6]阴斌松,钢筋混凝土筒中筒结构非线性分析方法研究[D].长沙:湖南大学,2009.
[7]Cornell C A,Jalayer F,Hamburger R O,et al.Probabilistic basis for 2000 SAC federal emergency management agency steel moment frame guide-lines[J].ASCE Journal of Structural Engineering,2002,128(4):526-533.(in Chinese)
[8]Yun S Y,Hamburger R O,Cornell C A,el al.Seismic performance for steel moment frames[J].ASCE Journal of Structural Engineering,2002,95-102.
[9]Wilson E L,结构静力与动力分析[M].北京:中国建筑工业出版社,2006.
[10]汪梦甫,周锡元.钢筋混凝土剪力墙多垂直杆非线性单元模型的改进及其应用[J].建筑结构学报,2002,23(1):38-42.WANG Mengfu,ZHOU Xiyuan.The improued parallel multi-component model for the nonlinear selsmic response analysis of RC walls and its appli-cation[J].Journal of Building structures.2002,23(1):38-42.(in Chinese)
[11]王海波.钢筋混凝土筒中筒结构非线性性能试验及理论研究[D].长沙:湖南大学,2004.
[2]Vamvatsikos D,Cornell C A.Direct estimation of seismic demand and capacity of multi-degree-of-freedom systems through incremental dynamic a-nalysis of single-degree-of-freedom approximation[J].ASCE Journal of Structural Engineering,2005,131(4):589-599.
[3]Mofid S,Zarfam P,Raeisi Fard B.On the modal incremental dynamic analysis[J].The Structural Design of Tall and Special Buildings,2005,14(4):315-329.
[4]Han S W,Chopra A K.Approximate incremental dynamic analysis using the modal pushover analysis procedure[J].Earthquake Engineering andStructural Dynamics,2006,35:1853-1873.
[5]Vejdani-Noghreiyan H R,Shooshtari A,Comparison of exact IDA and approximate MPA-based IDA for reinforced concrete frames[C]//The 14thWorld Conference on Earthquake Engineering,Beijing:2008.
[6]阴斌松,钢筋混凝土筒中筒结构非线性分析方法研究[D].长沙:湖南大学,2009.
[7]Cornell C A,Jalayer F,Hamburger R O,et al.Probabilistic basis for 2000 SAC federal emergency management agency steel moment frame guide-lines[J].ASCE Journal of Structural Engineering,2002,128(4):526-533.(in Chinese)
[8]Yun S Y,Hamburger R O,Cornell C A,el al.Seismic performance for steel moment frames[J].ASCE Journal of Structural Engineering,2002,95-102.
[9]Wilson E L,结构静力与动力分析[M].北京:中国建筑工业出版社,2006.
[10]汪梦甫,周锡元.钢筋混凝土剪力墙多垂直杆非线性单元模型的改进及其应用[J].建筑结构学报,2002,23(1):38-42.WANG Mengfu,ZHOU Xiyuan.The improued parallel multi-component model for the nonlinear selsmic response analysis of RC walls and its appli-cation[J].Journal of Building structures.2002,23(1):38-42.(in Chinese)
[11]王海波.钢筋混凝土筒中筒结构非线性性能试验及理论研究[D].长沙:湖南大学,2004.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心