在水平荷载作用下不规则建筑结构的弹塑性反应综述
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摘要
建筑结构在强震作用下的变形通常进入非弹性阶段,特别是不规则建筑结构,由于平动与扭转耦合效应使之在强震作用下的弹塑性更为复杂。因此,这方面的研究还存在相当大的难度,当前并没有形成较为一致的结论。本文着重探讨了建模、刚度偏心、质量偏心和强度偏心等因素对不规则建筑结构弹塑性反应的影响,对不规则建筑结构的弹塑性反应做了简要评述,指出文献中存在分歧和矛盾的主要原因,以便为更深入地开展不规则建筑的地震反应分析做必要的准备。
Buildings subjected to a large intensity ground motion often deform well into the inelastic range.In particular asymmetric buildings undergo coupled inelastic lateral and torsional deformations that couldbe more complex. Hence there are many difficulties for studies in this field, and some controversies stillexist. This paper focuses on the effects of modelling, stiffness, strength, and mass eccentricities on the in-elastic behavior of asymmetric building systems under lateral loads. The elastic behavior of asymmetricbuildings under lateral loads is related to stiffness and mass eccentricities, while the inelastic behavior ofasymmetric buildings under lateral loads is dependent upon modeling, stiffness eccentricity, mass eccen-tricity and strength eccentricity as well. The strength eccentricity can more exactly reflect the inelastic be-havior of asymmetric buildings under lateral loads than stiffness eccentricity. A brief summary on the in-elastic behavior of asymmetric buildings under lateral loads is provided in this paper. The existing studiesarrived at different, and even contradicting conclusions, the causes of which are explored in this paper.
Buildings subjected to a large intensity ground motion often deform well into the inelastic range.In particular asymmetric buildings undergo coupled inelastic lateral and torsional deformations that couldbe more complex. Hence there are many difficulties for studies in this field, and some controversies stillexist. This paper focuses on the effects of modelling, stiffness, strength, and mass eccentricities on the in-elastic behavior of asymmetric building systems under lateral loads. The elastic behavior of asymmetricbuildings under lateral loads is related to stiffness and mass eccentricities, while the inelastic behavior ofasymmetric buildings under lateral loads is dependent upon modeling, stiffness eccentricity, mass eccen-tricity and strength eccentricity as well. The strength eccentricity can more exactly reflect the inelastic be-havior of asymmetric buildings under lateral loads than stiffness eccentricity. A brief summary on the in-elastic behavior of asymmetric buildings under lateral loads is provided in this paper. The existing studiesarrived at different, and even contradicting conclusions, the causes of which are explored in this paper.
引文
[1] Rosenblueth E, Meli R. The 1985 earthquake: causes and effects in Mexico city[J]. Concrete International 1986, (8) : 23-34
[2] Chandler AM. Building damage in Mexico City earthquake[J]. Nature, 1986, 320(6062 ): 497-501
[3] 吕西林,李学平.超限高层建筑工程抗震设计中的若干问题[J].建筑结构学报,2002,23(2) :13-18
[4] Ayre, R. S. Interconnection of translational and torsional vibrations in Buildings[J]. Bulletin of the Seismological Society of America, 1938, 128 (2) : 89-130
[5] Rosenblueth, Housner. Responses of linear systems to certain transient disturbances[A]. 4th World Conference on Earthquake Engineering[C]. Santiago, Chile, 1969
[6] Newmark, N. M. Torsion in symmetrical Building [A]. 4th World Conference on Earthquake Engineering[C]. Santiago, Chile, 1969
[7] 魏琏,朱锦心,蒋自立.多层建筑扭转弹塑性地震反应分析[J].土木工程学报,1980,13(1) ;63-75
[8] 乔天民,杨桂通.单层偏心结构的地震反应分析[J].太原工业大学学报,1984,4(4) :59-73
[9] 杨鉴,魏琏.高层建筑扭转耦联自由振动的计算[J].建筑结构学报,1985,6(2) :67-74
[10] 魏琏,杨鉴.高层建筑扭转耦联振动时的地震力以及振型组合[J].建筑结构,1986,7(1) ;9-19
[11] 魏琏,水平地震作用下不对称建筑的抗震计算[J].建筑科学,1990,6(1) :45-51
[12] 刘大海,杨翠如,钟锡根.高层建筑抗震设计[M].北京:中国建筑工业出版社,1993． 328-362
[13] 王选民,邹银生.复杂高层建筑结构地震作用的计算[J].建筑结构学报,1998,19(2) :60-66
[14] 徐培福,黄吉锋,韦承基.高层建筑结构在地震作用下的扭转振动效应[J].建筑科学,2000,16(1) :1-6
[15] 王耀伟.平面不规则结构非线性地震反应规律研究[D].重庆:重庆大学,2003
[16] Chandler, A. M., Hutchinson, G. L. Evaluation of code torsional provisions by a time history approach [J]. Earthquake Engineering and Structural Dynamics, 1987, 15 (4) : 491-516
[17] Chandler, A. M., Correnza, J. C, Hutchinson, G. L. Effect of transverse load-resisting elements on inelastic earthquake response of eccentric-plan buildings[J]. Earthquake Engineering and Structural Dynamics, 1994, 23(1) : 75-89
[18] Erdickt Mustapha O. Torsional effects in dynamically excited structures[A]. Rice Ph. D dissertation [C]. University, Houston, Texas, 1975
[19] Dempsey, K. M., Tso, W. K. Seismic torsional provisions for dynamic eccentricity[J]. Earthquake Engineering and Structural Dynamics, 1980． 8 (2) : 275-289
[20] Chopra, Anil K., Hejal, Reem. Lateral-torsional coupling in earthquake response of frame buildings [J]. Journal of Structural Engineering, 1989, 115(4) : 852-867
[21] Chopra, Anil K., Kan, Christopher L. Simple model for earthquake responsestudies of torsionally coupled buildings [J]. Journal of the Engineering Mechanics Division, 1981, 107(5) : 935-951
[22] Chopra, Anil K., Kan, Christopher L. Torsional coupling and earthquake response of simple elastic and inelastic systems[J]. Journal of the Structural Division, 1981, 107(8) : 1569-1588
[23] Sadek, A. W., Tso, W. K. Inelastic seismic response of simple eccentric structures [J]. Earthquake Engineering and Structural Dynamics, 1985, 13 (2) : 255-269
[24] Bozorgnia, Y., Tso, W. K. Inelastic earthquake response of asymmetric structures [J]. Journal of the Structural Division, 1986, 112 (2) : 383-400
[25] Sadek, A. W., Tso, W. K. Strength eccentricity concept for inelastic analysis of asymmetric structures [A]. Proceedings of the Ninth World Conference on Earthquake [C]. Tokyo-Kyoto, Japan, 1988
[26] Chopra, Anil K., Hejal, Reem. Earthquake response of torsionally coupled frame buildings[J]. Journal of Structural Engineering, 1989, 115 (4) : 834-851
[27] Tso, W. K., Ying, Hongshan. Additional seismic inelastic deformation caused by structural asymmetry [J]. Earthquake Engineering and Structural Dynamics, 1990, 19(2) : 243-258
[28] Chandler, A. M., Duan, X. N. Evaluation of factors influencing the inelastic seismic performance of torsionally asymmetric buildings [J]. Earthquake Engineering and Structural Dynamics, 1991, 20(1) : 87-95
[29] Chopra, Anil K., Goel, Rakesh K. Inelastic Seismic Response of One-Story, Asymmetric-Plan Systems [R]. Report No. UCB/EERC-90/14． Berkeley, California: University of California at Berkeley. 1990
[30] Chopra, Anil K., Goel, Rakesh K. Ine1astic seismic response of one-story, asymmetric-plan systems: effects of system parameters and yielding [J]. Earthquake Engineering and Structural Dynamics, 1991, 20(2) : 201-222
[31] Chandler, A. M., Hutchinson, G. L. Torsional coupling effects in the earthquake response of asymmetric buildings [J]. Engineering Structures. 1986, 8 (2) : 222-236
[32] De Stefano, M., Faella, G., Ramasco, R. Inelastic response and design criteria of plan-wise asymmetric systems[J]. Earthquake Engineering and Structural-Dynamics, 1993, 22 (2) : 245-259
[33] Ayala, A. G., Escobar, J. A., Garcia, O. Assessment of earthquake forces in low-rise structures from lateral and torsional coupling[A]. Proceedings of the Tenth Conference on Earthquake Engineering [C]. 1992, 10: 5735-5740
[34] B. Myslimaj, W. K. Tso. A strength distribution criterion for minimizing torsional response of asymmetric wall-type systems [J]. Earthquake Engineering and Structural Dynamics, 2002, 31 (1) : 99-120
[35] Chopra, Anil K, Goel, Rakesh K. Inelastic seismic response of one-story, asymmetric-plan systems: effects of stiffness and strength distribution[J]. Earthquake Engineering and Structural Dynamics, 1990, 19(4) : 949-970
[36] GB50011-2001,建筑抗震设计规范[S]
[2] Chandler AM. Building damage in Mexico City earthquake[J]. Nature, 1986, 320(6062 ): 497-501
[3] 吕西林,李学平.超限高层建筑工程抗震设计中的若干问题[J].建筑结构学报,2002,23(2) :13-18
[4] Ayre, R. S. Interconnection of translational and torsional vibrations in Buildings[J]. Bulletin of the Seismological Society of America, 1938, 128 (2) : 89-130
[5] Rosenblueth, Housner. Responses of linear systems to certain transient disturbances[A]. 4th World Conference on Earthquake Engineering[C]. Santiago, Chile, 1969
[6] Newmark, N. M. Torsion in symmetrical Building [A]. 4th World Conference on Earthquake Engineering[C]. Santiago, Chile, 1969
[7] 魏琏,朱锦心,蒋自立.多层建筑扭转弹塑性地震反应分析[J].土木工程学报,1980,13(1) ;63-75
[8] 乔天民,杨桂通.单层偏心结构的地震反应分析[J].太原工业大学学报,1984,4(4) :59-73
[9] 杨鉴,魏琏.高层建筑扭转耦联自由振动的计算[J].建筑结构学报,1985,6(2) :67-74
[10] 魏琏,杨鉴.高层建筑扭转耦联振动时的地震力以及振型组合[J].建筑结构,1986,7(1) ;9-19
[11] 魏琏,水平地震作用下不对称建筑的抗震计算[J].建筑科学,1990,6(1) :45-51
[12] 刘大海,杨翠如,钟锡根.高层建筑抗震设计[M].北京:中国建筑工业出版社,1993． 328-362
[13] 王选民,邹银生.复杂高层建筑结构地震作用的计算[J].建筑结构学报,1998,19(2) :60-66
[14] 徐培福,黄吉锋,韦承基.高层建筑结构在地震作用下的扭转振动效应[J].建筑科学,2000,16(1) :1-6
[15] 王耀伟.平面不规则结构非线性地震反应规律研究[D].重庆:重庆大学,2003
[16] Chandler, A. M., Hutchinson, G. L. Evaluation of code torsional provisions by a time history approach [J]. Earthquake Engineering and Structural Dynamics, 1987, 15 (4) : 491-516
[17] Chandler, A. M., Correnza, J. C, Hutchinson, G. L. Effect of transverse load-resisting elements on inelastic earthquake response of eccentric-plan buildings[J]. Earthquake Engineering and Structural Dynamics, 1994, 23(1) : 75-89
[18] Erdickt Mustapha O. Torsional effects in dynamically excited structures[A]. Rice Ph. D dissertation [C]. University, Houston, Texas, 1975
[19] Dempsey, K. M., Tso, W. K. Seismic torsional provisions for dynamic eccentricity[J]. Earthquake Engineering and Structural Dynamics, 1980． 8 (2) : 275-289
[20] Chopra, Anil K., Hejal, Reem. Lateral-torsional coupling in earthquake response of frame buildings [J]. Journal of Structural Engineering, 1989, 115(4) : 852-867
[21] Chopra, Anil K., Kan, Christopher L. Simple model for earthquake responsestudies of torsionally coupled buildings [J]. Journal of the Engineering Mechanics Division, 1981, 107(5) : 935-951
[22] Chopra, Anil K., Kan, Christopher L. Torsional coupling and earthquake response of simple elastic and inelastic systems[J]. Journal of the Structural Division, 1981, 107(8) : 1569-1588
[23] Sadek, A. W., Tso, W. K. Inelastic seismic response of simple eccentric structures [J]. Earthquake Engineering and Structural Dynamics, 1985, 13 (2) : 255-269
[24] Bozorgnia, Y., Tso, W. K. Inelastic earthquake response of asymmetric structures [J]. Journal of the Structural Division, 1986, 112 (2) : 383-400
[25] Sadek, A. W., Tso, W. K. Strength eccentricity concept for inelastic analysis of asymmetric structures [A]. Proceedings of the Ninth World Conference on Earthquake [C]. Tokyo-Kyoto, Japan, 1988
[26] Chopra, Anil K., Hejal, Reem. Earthquake response of torsionally coupled frame buildings[J]. Journal of Structural Engineering, 1989, 115 (4) : 834-851
[27] Tso, W. K., Ying, Hongshan. Additional seismic inelastic deformation caused by structural asymmetry [J]. Earthquake Engineering and Structural Dynamics, 1990, 19(2) : 243-258
[28] Chandler, A. M., Duan, X. N. Evaluation of factors influencing the inelastic seismic performance of torsionally asymmetric buildings [J]. Earthquake Engineering and Structural Dynamics, 1991, 20(1) : 87-95
[29] Chopra, Anil K., Goel, Rakesh K. Inelastic Seismic Response of One-Story, Asymmetric-Plan Systems [R]. Report No. UCB/EERC-90/14． Berkeley, California: University of California at Berkeley. 1990
[30] Chopra, Anil K., Goel, Rakesh K. Ine1astic seismic response of one-story, asymmetric-plan systems: effects of system parameters and yielding [J]. Earthquake Engineering and Structural Dynamics, 1991, 20(2) : 201-222
[31] Chandler, A. M., Hutchinson, G. L. Torsional coupling effects in the earthquake response of asymmetric buildings [J]. Engineering Structures. 1986, 8 (2) : 222-236
[32] De Stefano, M., Faella, G., Ramasco, R. Inelastic response and design criteria of plan-wise asymmetric systems[J]. Earthquake Engineering and Structural-Dynamics, 1993, 22 (2) : 245-259
[33] Ayala, A. G., Escobar, J. A., Garcia, O. Assessment of earthquake forces in low-rise structures from lateral and torsional coupling[A]. Proceedings of the Tenth Conference on Earthquake Engineering [C]. 1992, 10: 5735-5740
[34] B. Myslimaj, W. K. Tso. A strength distribution criterion for minimizing torsional response of asymmetric wall-type systems [J]. Earthquake Engineering and Structural Dynamics, 2002, 31 (1) : 99-120
[35] Chopra, Anil K, Goel, Rakesh K. Inelastic seismic response of one-story, asymmetric-plan systems: effects of stiffness and strength distribution[J]. Earthquake Engineering and Structural Dynamics, 1990, 19(4) : 949-970
[36] GB50011-2001,建筑抗震设计规范[S]
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