地震作用特征对结构IDA曲线的影响分析
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摘要
当前IDA曲线离散分析主要采用数值统计方法。为了从受力机理上对IDA曲线差异做出解释,通过反应谱正则化的调幅方法绘制结构等效弹塑性单质点的IDA曲线;并通过对实际结构的IDA曲线适当插值,以结构基底剪力和薄弱层层间侧移角为基准,比较了结构非线性发展沿高度分布特征差异。由此证明IDA曲线差异是由不同地震动的弹塑性谱特征差异以及沿结构高度作用分布特征差异共同构成。本文的分析在数值统计方法之外,形成了对IDA曲线离散特征分析新的分析思路。
Incremental dynamic analysis (IDA) curves for the structure’s equivalent elasto-plastic SDOF was calculated by the response spectra normalized method.The distribution of the structural nonlinear development along the building altitude under the different seismic were compared,when the same base shear force and base story drift angles were given by interpolation to IDA curves.The difference of IDA curves were given,which resulted from the characters of elastoplastic spectrum and the distribution of the earthquake force along the altitude of the building.A new means of analyses for the discrete of IDA curves was presented without the using of statistics.
Incremental dynamic analysis (IDA) curves for the structure’s equivalent elasto-plastic SDOF was calculated by the response spectra normalized method.The distribution of the structural nonlinear development along the building altitude under the different seismic were compared,when the same base shear force and base story drift angles were given by interpolation to IDA curves.The difference of IDA curves were given,which resulted from the characters of elastoplastic spectrum and the distribution of the earthquake force along the altitude of the building.A new means of analyses for the discrete of IDA curves was presented without the using of statistics.
引文
[1]Wang Jianmin.Study on seismic performance of bridge structures based on probabilistic[D].Beijing:School of Civil Eng,Beijing Jiaotong Univ,2006.[王建民.基于概率的桥梁结构抗震性能研究[D].北京:北方交通大学土木建筑工程学院,2006.]
[2]Bertero V V.Strength and deformation capacities of build-ings under extreme enviorments[M]//PISTERS K S.Structural Engineering and Structural Mechanics.Engewood Cliffs,NJ:Prentice-Hall,1977:211-215.
[3]Mwafy A M,Elnashai A S.Static pushover versus dynamic collapse analysis of RC buildings[J].Engineering Struc-tures,2001,23:407-424.
[4]Luco N,Cornell C A.Effects of connection fractures on SMRF seismic drift demands[J].Journal of Structural En-gineering,2000,126:127-136.
[5]Bazzuro P,Cornell C A.Three proposals for characterizing MDOF nonlinear seismic response[J].Journal of Structural Engineering,1998,124(4):1281-1289.
[6]Vamvatsikos D.Seismic performance,capacity and reliabil-ity of structures as seen through incremental dynamic analy-sis[D].Stanford,CA:Stanford university,2002.
[7]Vamvatsikos D,Cornell C A.Direct estimation of seismic demand and capacity of multidegree-of-freedom system through incremental dynamic analysis of single degree of freedom approximation[J].Journal of Structural Engineer-ing,2005,131(4):589-599.
[8]Li Jianzhong,Song Xiaodong,Fan Lichu.Investigation for displacement ductility capacity of tall piers[J].Earthquake Engineering and Engineering Vibration,2005(1):43-48.[李建中,宋晓东,范立础.桥梁高墩位移延性能力的探讨[J].地震工程及工程振动,2005(1):43-48.]
[9]Ma Qianli,Ye Lieping,Lu Xinzheng,et al.Study on lateral load patterns of pushover analysis using incremental dynam-ical analysis for RC framestructures[J].Journal of Build-ing Structures,2008,29(2):132-140.[马千里,叶列平,陆新征,等.采用逐步增量弹塑性时程方法对RC框架结构推覆分析侧力模式的研究[J].建筑结构学报,2008,29(2):132-140.]
[10]Mackie K,Stojadinovic B.Relation between probabilistic seismic demand analysis and incremental dynamic analysis[C]//International Workshop on Performance-Based Seis-mic Design(PBSD)Concepts and Implementation Bled.Slovenia,2004.
[11]Xiong Xiangyang,Qi Zhenhua.The influence of lateral load patterns on the results of static pushover analysis[J].Building Science,2001,17(5):8-13.[熊向阳,戚震华.侧向荷载分布方式对静力弹塑性分析结果的影响[J].建筑科学,2001,17(5):8-13.]
[12]Hou Shuang,Ou Jinpin.A study of load pattern selection of pushover analysis and influence of higher modes[J].Earthquake Engineering and Engineering Vibration,2004,24(3):89-97.[侯爽,欧进萍.结构Pushover分析的侧向力分布及高阶振型影响[J].地震工程与工程振动,2004,24(3):89-97.]
[13]Yang Pu.Displacement based structural seismic response a-nalysis[D].Chongqing:Chongqing Jianzhu Univ,1999.[杨溥.基于位移的结构地震反应分析方法研究[D].重庆:重庆建筑大学建筑工程学院,1999.]
[14]Yang Cheng.Improved capacity-demand-diagram methods for estimating seismic deformation of inelastic structures[D].Chongqing:School of Civil Eng.Chongqing Univ,2003.[杨成.结构弹塑性地震反应分析的改进能力—需求曲线方法研究[D].重庆:重庆大学土木工程学院,2003.]
[15]Li Yingmin,Yang Cheng,Lai Ming.Several problems about performance based design and capacity-demand-diagram methods[J].Journal Chongqing Jianzhu University,2003(6):26-32.[李英民,杨成,赖明.性态设计方法及能力-需求曲线方法的几个问题[J].重庆建筑大学学报,2003,25(6):26-32.]
[16]Yang Cheng,Zhao Renda.Improved capacity spectrum method using structural inelastic response[J].Journal of Southwest Jiaotong Universtiy,2006,14(3):252-264.
[17]Yang Cheng,Xu Tengfei,Li Yingmin,et al.Research on modified IDA method by inelastic response spectrum[J].Journal of Earthquake Engineering and Engineering Vibra-tion,2008(4):64-69.[杨成,徐腾飞,李英民,等.应用弹塑性反应谱对IDA方法的改进研究[J].地震工程与工程振动,2008,28(4):64-69.]
[18]中华人民共和国建设部.建筑抗震设计规范(GB50011-2001)[S].北京:中国建筑工业出版社,2001.
[19]Ye Lieping,Lu Xinzheng,Ma Qianli,et al.Nonlinear ana-lytical modals,methods and examples for concrete structures subject to earthquake loading[J].Engineering Mechanics,2006,23(SupⅡ):131-140.[叶列平,陆新征,马千里,等.混凝土结构抗震非线性分析模型、方法及算例[J].工程力学,2006,23(增刊2):131-140.]
[20]范立础,卓卫东.桥梁延性抗震设计[M].第1版.北京:人民交通出版社,2001:265-290.
[21]Xiong Zhenyong.Improved method of the inelastic demand spectrum for evaluating the seismic performance of the structures[D].Chongqing:School of Civil Eng.of Chongqing Univ,2004.[熊振勇.改进的弹塑性需求谱确定方法及在结构抗震性能评价中的应用[D].重庆:重庆大学土木工程学院,2004.]
[22]Luo Wenbin,Qian Jiaru.Displacement-based seismic de-sign for RC frames[J].China Civil Engineering Journal,2003,36(5):22-29.[罗文斌,钱稼茹.钢筋混凝土框架基于位移的抗震设计[J].土木工程学报,2003,36(5):22-29.]
[23]Yang Pu,Li Yingmin,Xiong Zhenyong,et al.Study on the comparison of different methods of simplifying capacity spectrum[J].Journal of Chongqing Jianzhu University,2005,27(4):59-63.[杨溥,李英民,熊振勇,等.能力曲线折线简化方法对比研究[J].重庆建筑大学学报,2005,27(4):59-63.]
[24]Yang Hong,Cao Hui,Bai Shaoliang.Effects of local time-frequency characteristics of earthquake waves on structural nonlinear responses[J].China Civil Engineering Journal,2001,34(4):78-82.[杨红,曹晖,白绍良.地震波局部时频特性对结构非线性响应的影响[J].土木工程学报,2001,34(4):78-82.]
[25]Yang Hong,Wang Zhen,Bai Shaoliang,et al.A study on the frame column yielding based on the influence of local time-frequency characteristics of earthquake wave[J].World Information on Earthquake Engineering,2001,17(4):71-78.[杨红,王珍,白绍良,等.基于地震波局部时频特性影响的框架柱屈服状态[J].世界地震工程,2001,17(4):71-78.]
[26]Cao Hui,Lin Xuepeng.The effect of nonstationary charac-teristic of earthquake ground motion on the structural non-linear response[J].Engineering Mechanics,2006,23(12):30-35.[曹晖,林学鹏.地震动非平稳特性对结构非线性响应影响的分析[J].工程力学,2006,23(12):30-35.]
[27]Li Yingmin.Modeling of strong ground motions for engi-neering purpose[D].Chongqing:Chongqing Jianzhu Uni-versity,1999.[李英民.工程地震动的模型化研究[D].重庆:重庆建筑大学建筑工程学院,1999.]
[2]Bertero V V.Strength and deformation capacities of build-ings under extreme enviorments[M]//PISTERS K S.Structural Engineering and Structural Mechanics.Engewood Cliffs,NJ:Prentice-Hall,1977:211-215.
[3]Mwafy A M,Elnashai A S.Static pushover versus dynamic collapse analysis of RC buildings[J].Engineering Struc-tures,2001,23:407-424.
[4]Luco N,Cornell C A.Effects of connection fractures on SMRF seismic drift demands[J].Journal of Structural En-gineering,2000,126:127-136.
[5]Bazzuro P,Cornell C A.Three proposals for characterizing MDOF nonlinear seismic response[J].Journal of Structural Engineering,1998,124(4):1281-1289.
[6]Vamvatsikos D.Seismic performance,capacity and reliabil-ity of structures as seen through incremental dynamic analy-sis[D].Stanford,CA:Stanford university,2002.
[7]Vamvatsikos D,Cornell C A.Direct estimation of seismic demand and capacity of multidegree-of-freedom system through incremental dynamic analysis of single degree of freedom approximation[J].Journal of Structural Engineer-ing,2005,131(4):589-599.
[8]Li Jianzhong,Song Xiaodong,Fan Lichu.Investigation for displacement ductility capacity of tall piers[J].Earthquake Engineering and Engineering Vibration,2005(1):43-48.[李建中,宋晓东,范立础.桥梁高墩位移延性能力的探讨[J].地震工程及工程振动,2005(1):43-48.]
[9]Ma Qianli,Ye Lieping,Lu Xinzheng,et al.Study on lateral load patterns of pushover analysis using incremental dynam-ical analysis for RC framestructures[J].Journal of Build-ing Structures,2008,29(2):132-140.[马千里,叶列平,陆新征,等.采用逐步增量弹塑性时程方法对RC框架结构推覆分析侧力模式的研究[J].建筑结构学报,2008,29(2):132-140.]
[10]Mackie K,Stojadinovic B.Relation between probabilistic seismic demand analysis and incremental dynamic analysis[C]//International Workshop on Performance-Based Seis-mic Design(PBSD)Concepts and Implementation Bled.Slovenia,2004.
[11]Xiong Xiangyang,Qi Zhenhua.The influence of lateral load patterns on the results of static pushover analysis[J].Building Science,2001,17(5):8-13.[熊向阳,戚震华.侧向荷载分布方式对静力弹塑性分析结果的影响[J].建筑科学,2001,17(5):8-13.]
[12]Hou Shuang,Ou Jinpin.A study of load pattern selection of pushover analysis and influence of higher modes[J].Earthquake Engineering and Engineering Vibration,2004,24(3):89-97.[侯爽,欧进萍.结构Pushover分析的侧向力分布及高阶振型影响[J].地震工程与工程振动,2004,24(3):89-97.]
[13]Yang Pu.Displacement based structural seismic response a-nalysis[D].Chongqing:Chongqing Jianzhu Univ,1999.[杨溥.基于位移的结构地震反应分析方法研究[D].重庆:重庆建筑大学建筑工程学院,1999.]
[14]Yang Cheng.Improved capacity-demand-diagram methods for estimating seismic deformation of inelastic structures[D].Chongqing:School of Civil Eng.Chongqing Univ,2003.[杨成.结构弹塑性地震反应分析的改进能力—需求曲线方法研究[D].重庆:重庆大学土木工程学院,2003.]
[15]Li Yingmin,Yang Cheng,Lai Ming.Several problems about performance based design and capacity-demand-diagram methods[J].Journal Chongqing Jianzhu University,2003(6):26-32.[李英民,杨成,赖明.性态设计方法及能力-需求曲线方法的几个问题[J].重庆建筑大学学报,2003,25(6):26-32.]
[16]Yang Cheng,Zhao Renda.Improved capacity spectrum method using structural inelastic response[J].Journal of Southwest Jiaotong Universtiy,2006,14(3):252-264.
[17]Yang Cheng,Xu Tengfei,Li Yingmin,et al.Research on modified IDA method by inelastic response spectrum[J].Journal of Earthquake Engineering and Engineering Vibra-tion,2008(4):64-69.[杨成,徐腾飞,李英民,等.应用弹塑性反应谱对IDA方法的改进研究[J].地震工程与工程振动,2008,28(4):64-69.]
[18]中华人民共和国建设部.建筑抗震设计规范(GB50011-2001)[S].北京:中国建筑工业出版社,2001.
[19]Ye Lieping,Lu Xinzheng,Ma Qianli,et al.Nonlinear ana-lytical modals,methods and examples for concrete structures subject to earthquake loading[J].Engineering Mechanics,2006,23(SupⅡ):131-140.[叶列平,陆新征,马千里,等.混凝土结构抗震非线性分析模型、方法及算例[J].工程力学,2006,23(增刊2):131-140.]
[20]范立础,卓卫东.桥梁延性抗震设计[M].第1版.北京:人民交通出版社,2001:265-290.
[21]Xiong Zhenyong.Improved method of the inelastic demand spectrum for evaluating the seismic performance of the structures[D].Chongqing:School of Civil Eng.of Chongqing Univ,2004.[熊振勇.改进的弹塑性需求谱确定方法及在结构抗震性能评价中的应用[D].重庆:重庆大学土木工程学院,2004.]
[22]Luo Wenbin,Qian Jiaru.Displacement-based seismic de-sign for RC frames[J].China Civil Engineering Journal,2003,36(5):22-29.[罗文斌,钱稼茹.钢筋混凝土框架基于位移的抗震设计[J].土木工程学报,2003,36(5):22-29.]
[23]Yang Pu,Li Yingmin,Xiong Zhenyong,et al.Study on the comparison of different methods of simplifying capacity spectrum[J].Journal of Chongqing Jianzhu University,2005,27(4):59-63.[杨溥,李英民,熊振勇,等.能力曲线折线简化方法对比研究[J].重庆建筑大学学报,2005,27(4):59-63.]
[24]Yang Hong,Cao Hui,Bai Shaoliang.Effects of local time-frequency characteristics of earthquake waves on structural nonlinear responses[J].China Civil Engineering Journal,2001,34(4):78-82.[杨红,曹晖,白绍良.地震波局部时频特性对结构非线性响应的影响[J].土木工程学报,2001,34(4):78-82.]
[25]Yang Hong,Wang Zhen,Bai Shaoliang,et al.A study on the frame column yielding based on the influence of local time-frequency characteristics of earthquake wave[J].World Information on Earthquake Engineering,2001,17(4):71-78.[杨红,王珍,白绍良,等.基于地震波局部时频特性影响的框架柱屈服状态[J].世界地震工程,2001,17(4):71-78.]
[26]Cao Hui,Lin Xuepeng.The effect of nonstationary charac-teristic of earthquake ground motion on the structural non-linear response[J].Engineering Mechanics,2006,23(12):30-35.[曹晖,林学鹏.地震动非平稳特性对结构非线性响应影响的分析[J].工程力学,2006,23(12):30-35.]
[27]Li Yingmin.Modeling of strong ground motions for engi-neering purpose[D].Chongqing:Chongqing Jianzhu Uni-versity,1999.[李英民.工程地震动的模型化研究[D].重庆:重庆建筑大学建筑工程学院,1999.]
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