基于反应谱的地震动备选库建构方法
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摘要
时程分析中选择合适的地震动记录至关重要。以地震动反应谱与抗震设计反应谱相一致为评价原则,比较反应谱一致性控制参数均方差和均值相对差值,提出分周期段—双频段选择地震动的方法;按设防烈度和场地特征周期分组,在反应谱全周期范围内,采用分周期段—双频段方法建构地震动备选库。当结构基本周期确定后,可直接使用备选库中相应周期段内的地震动记录进行时程分析,省去因结构周期变化需重新选择地震动的繁琐工作。研究表明:分周期段—双频段方法在各周期段内选取的地震动记录效果较好;分周期段—双频段方法建构地震动备选库具有可行性和优越性。
It is important to select suitable ground motion records in time history analysis. The evaluation principle is that the ground motion response spectrum is consistent with the aseismic design's response spectrum. Comparing relative differences between mean square deviations and mean values of two response spectra' consistency control parameters, the periodic band and dual-band method for selecting ground motion records was proposed. According to the fortification intensity and the site characteristic period, within the whole period range of response spectrum, the periodic band and dual-band method was used to construct a ground motion alternative database. After the fundamental period of a structure was determined, ground motion records within the corresponding periodic band of the alternative database were directly used to perform time history analysis and eliminate tedious work for re-selecting ground motion records due to changes of structural period. The study showed that the periodic band and dual-band method has a good effect on selecting ground motion records in each periodic band; this method has the feasibility and superiority to construct a ground motion alternative database.
It is important to select suitable ground motion records in time history analysis. The evaluation principle is that the ground motion response spectrum is consistent with the aseismic design's response spectrum. Comparing relative differences between mean square deviations and mean values of two response spectra' consistency control parameters, the periodic band and dual-band method for selecting ground motion records was proposed. According to the fortification intensity and the site characteristic period, within the whole period range of response spectrum, the periodic band and dual-band method was used to construct a ground motion alternative database. After the fundamental period of a structure was determined, ground motion records within the corresponding periodic band of the alternative database were directly used to perform time history analysis and eliminate tedious work for re-selecting ground motion records due to changes of structural period. The study showed that the periodic band and dual-band method has a good effect on selecting ground motion records in each periodic band; this method has the feasibility and superiority to construct a ground motion alternative database.
引文
[1] 王亚勇,程民宪,刘小弟.建筑结构时程分析法输入地震波的研究[J].建筑结构学报,1991,12(2):51-60.WANG Yayong,CHENG Minxian,LIU Xiaodi.Study on the input earthquake for structural seismic time history analysis[J].Journal of Building Structures,1991,12(2):51-60.
[2] ATC-63.Quantification of building seismic performance factors [S].California:Applied Technology Council,2008.
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[5] BOMMER J,ACEVEDO A.The use of real earthquake accelerograms as input to dynamic analysis[J].Journal of Earthquake Engineering,2004,8(1):43-91.
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[9] 张云,谭平,郑建勋,等.梁桥结构地震反应分析中输入地震动选取及调整方法研究[J].振动与冲击,2015,34(6):18-23.ZHANG Yun,TAN Ping,ZHENG Jianxun,et al.Selecting and adjusting methods for earthquake input in a girder bridge's seismic response analysis[J].Journal of Vibration and Shock,2015,34(6):18-23.
[10] NAEIM F,ALIMORADI A,PEZESHK S,et al.Selection and scaling of ground motion time histories for structural design using genetic algorithms[J].Earthquake Spectra,2004,20(2):413-426.
[11] KATSANOS E I,SEXTOS A G,MANOLIS G D.Selection of earthquake ground motion records:a state-of-the-art review from a structural engineering perspective[J].Soil Dynamics and Earthquake Engineering,2010,30(4):157-169.
[12] BAKER J W.Conditional mean spectrum:tool for ground-motion selection[J].Journal of Structural Engineering,2011,137(3):322-331.
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[14] 翟长海,谢礼立.估计和比较地震动潜在破坏势的综合评述[J].地震工程与工程振动,2002,22(5):1-7.ZHAI Changhai,XIE Lili.A comprehensive method for estimating and comparing the damage potential of strong ground motion[J].Earthquake Engineering and Engineering Vibration,2002,22(5):1-7.
[15] 谢礼立,翟长海.最不利设计地震动研究[J].地震学报,2003,25(3):250-261.XIE Lili,ZHAI Changhai.Study on the severest real ground motion for seismic design and analysis[J].Acta Seismologica Sinica,2003,25(3):250-261.
[16] 施炜,潘鹏,叶列平,等.基于天际线查询的最不利地震动选取方法研究[J].建筑结构学报,2013,34(7):20-28.SHI Wei,PAN Peng,YE Lieping,et al.Skyline-based most unfavorable earthquake ground motion selection procedure based on skyline query[J].Journal of Building Structures,2013,34(7):20-28.
[17] 陈亮,任伟新,张广锋,等.基于性能的桥梁抗震设计中考虑持时的实际地震波优化选择方法[J].振动与冲击,2015,34(3):35-42.CHEN Liang,REN Weixin,ZHANG Guangfeng,et al.An optimal method for selecting real earthquake ground motions considering duration for performance-based aseismic design of bridges[J].Journal of Vibration and Shock,2015,34(3):35-42.
[18] 建筑抗震设计规范(2016版):GB 50011—2010[S].北京:中国建筑工业出版社,2016.
[19] 王刚.地震波选择方法、工具、及其在基于性能的抗震设计中的应用[R].香港:第四届粤港澳地震科技研讨会,2010.
[20] HASELTON C B.Evaluation of ground motion selection and modification methods:predicting median interstory drift response of buildings[R].Berkeley:Pacific Earthquake Engineering Research Center,University of California,2009.
[21] POWER M S,YOUNGS R R,CHIN C C.Design ground motion library[C]// Maurice S P,Robert R.SMIP04 Seminar Proceedings.Oakland,CA:Geomatrix Consultants,Inc,2004.
[22] 王亚勇.关于地震作用和结构抗震验算的修订动向[J].工程抗震,1992(2):12-13.WANG Yayong.The revised trend of seismic action and structural aseismic checking computation[J].Earthquake Resistant Engineering,1992(2):12-13.
[23] 郭峰,吴东明,许国富,等.中外抗震设计规范场地分类对应关系[J].土木工程与管理学报,2011,28(2):63-66.GUO Feng,WU Dongming,XU Guofu,et al.Site classification corresponding relationship between Chinese and the overseas seismic design codes[J].Journal of Civil Engineering and Management,2011,28(2):63-66.
[24] 孔令林.设防烈度下多目标抗震性能评估方法研究[D].青岛:青岛理工大学,2015.
[2] ATC-63.Quantification of building seismic performance factors [S].California:Applied Technology Council,2008.
[3] ASCE/SEI 7-16.Minimum design loads for buildings and other structures[S].Virginia:American Society of Civil Engineers,2017.
[4] STEWART J P,CHIOUS S J,BRAY J D,et al.Ground motion evaluation procedures for performance-based design[R].Report No.01 -09:63-67,Berkeley,California:Pacific Earthquake Engineering Research Center,2001.
[5] BOMMER J,ACEVEDO A.The use of real earthquake accelerograms as input to dynamic analysis[J].Journal of Earthquake Engineering,2004,8(1):43-91.
[6] GAIL M A,DAVID M B.Earthquake ground motion prediction equations for eastern north America[J].Bulletin of the Seismological Society of America,2006,96(6):2181-2205.
[7] 杨溥,李英民,赖明.结构时程分析法输入地震波的选择控制指标[J].土木工程学报,2000,33(6):34-37.YANG Pu,LI Yingmin,LAI Ming.A new method for selecting inputting waves for time- history analysis[J].China Civil Engineering Journal,2000,33(6):34-37.
[8] 杨红,任小军,徐海英.双向水平地震下时程分析法中输入波的选择[J].华南理工大学学报(自然科学版),2010,38(11):40-60.YANG Hong,REN Xiaojun,XU Haiying.Selection of input waves in time-history analysis under bi- direction horizontal seismic Action[J].Journal of South China University of Technology (Natural Science),2010,38(11):40-46.
[9] 张云,谭平,郑建勋,等.梁桥结构地震反应分析中输入地震动选取及调整方法研究[J].振动与冲击,2015,34(6):18-23.ZHANG Yun,TAN Ping,ZHENG Jianxun,et al.Selecting and adjusting methods for earthquake input in a girder bridge's seismic response analysis[J].Journal of Vibration and Shock,2015,34(6):18-23.
[10] NAEIM F,ALIMORADI A,PEZESHK S,et al.Selection and scaling of ground motion time histories for structural design using genetic algorithms[J].Earthquake Spectra,2004,20(2):413-426.
[11] KATSANOS E I,SEXTOS A G,MANOLIS G D.Selection of earthquake ground motion records:a state-of-the-art review from a structural engineering perspective[J].Soil Dynamics and Earthquake Engineering,2010,30(4):157-169.
[12] BAKER J W.Conditional mean spectrum:tool for ground-motion selection[J].Journal of Structural Engineering,2011,137(3):322-331.
[13] 翟长海,谢礼立.抗震结构最不利设计地震动研究[J].土木工程学报,2005,38(12):51-58.ZHAI Changhai,XIE Lili.The severest design ground motions for seismic design and analysis of structures[J].China Civil Engineering Journal,2005,38(12):51-58.
[14] 翟长海,谢礼立.估计和比较地震动潜在破坏势的综合评述[J].地震工程与工程振动,2002,22(5):1-7.ZHAI Changhai,XIE Lili.A comprehensive method for estimating and comparing the damage potential of strong ground motion[J].Earthquake Engineering and Engineering Vibration,2002,22(5):1-7.
[15] 谢礼立,翟长海.最不利设计地震动研究[J].地震学报,2003,25(3):250-261.XIE Lili,ZHAI Changhai.Study on the severest real ground motion for seismic design and analysis[J].Acta Seismologica Sinica,2003,25(3):250-261.
[16] 施炜,潘鹏,叶列平,等.基于天际线查询的最不利地震动选取方法研究[J].建筑结构学报,2013,34(7):20-28.SHI Wei,PAN Peng,YE Lieping,et al.Skyline-based most unfavorable earthquake ground motion selection procedure based on skyline query[J].Journal of Building Structures,2013,34(7):20-28.
[17] 陈亮,任伟新,张广锋,等.基于性能的桥梁抗震设计中考虑持时的实际地震波优化选择方法[J].振动与冲击,2015,34(3):35-42.CHEN Liang,REN Weixin,ZHANG Guangfeng,et al.An optimal method for selecting real earthquake ground motions considering duration for performance-based aseismic design of bridges[J].Journal of Vibration and Shock,2015,34(3):35-42.
[18] 建筑抗震设计规范(2016版):GB 50011—2010[S].北京:中国建筑工业出版社,2016.
[19] 王刚.地震波选择方法、工具、及其在基于性能的抗震设计中的应用[R].香港:第四届粤港澳地震科技研讨会,2010.
[20] HASELTON C B.Evaluation of ground motion selection and modification methods:predicting median interstory drift response of buildings[R].Berkeley:Pacific Earthquake Engineering Research Center,University of California,2009.
[21] POWER M S,YOUNGS R R,CHIN C C.Design ground motion library[C]// Maurice S P,Robert R.SMIP04 Seminar Proceedings.Oakland,CA:Geomatrix Consultants,Inc,2004.
[22] 王亚勇.关于地震作用和结构抗震验算的修订动向[J].工程抗震,1992(2):12-13.WANG Yayong.The revised trend of seismic action and structural aseismic checking computation[J].Earthquake Resistant Engineering,1992(2):12-13.
[23] 郭峰,吴东明,许国富,等.中外抗震设计规范场地分类对应关系[J].土木工程与管理学报,2011,28(2):63-66.GUO Feng,WU Dongming,XU Guofu,et al.Site classification corresponding relationship between Chinese and the overseas seismic design codes[J].Journal of Civil Engineering and Management,2011,28(2):63-66.
[24] 孔令林.设防烈度下多目标抗震性能评估方法研究[D].青岛:青岛理工大学,2015.
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