基于位移的抗震设计方法中的等效阻尼模型的研究
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摘要
对基于位移的抗震设计方法单自由度体系弹塑性位移计算的等效线性化方法中的等效阻尼模型进行研究。在统计分析的基础上,提出了考虑场地类别和设计地震分组的等效阻尼比公式,并与不同阻尼比公式进行了比较。对不同等效线性化方法的计算误差进行了统计分析,结果表明,本文建议的公式在预测单自由度体系位移反应方面与动力弹塑性分析结果在统计意义上吻合得最好。
The equivalent damping ratio is researched for displacement-based seismic design method,which is used to calculate the single-degree-of-freedom system plastic displacement.Based on the statistical analysis,the equivalent damping ratio formula is presented by considering soil classification and design characteristic.The different equivalent damping ratio formulas are compared.The calculation error of different equivalent linear methods is analyzed under seismic ground motions.The results show that the proposing formula well matches the dynamic elastoplastic analysis.
The equivalent damping ratio is researched for displacement-based seismic design method,which is used to calculate the single-degree-of-freedom system plastic displacement.Based on the statistical analysis,the equivalent damping ratio formula is presented by considering soil classification and design characteristic.The different equivalent damping ratio formulas are compared.The calculation error of different equivalent linear methods is analyzed under seismic ground motions.The results show that the proposing formula well matches the dynamic elastoplastic analysis.
引文
[1]Priestley M J N,Kowalsky M J.Direct displacement-based seismic design of concrete buildings[J].Bulletin of the New Zealand Society forEarthquake Engineering,2000,33(4):421-444.
[2]Lin Yuyuan,Eduardo Miranda.Evaluation of equivalent linear methods for estimating target displacements of existing structures[J].EngineeringStructures,2009,31(4):3080-3089.
[3]曲哲,叶列平建筑结构弹塑性地震响应计算的等价线性化法研究[J].建筑结构学报,2010,31(9):95-102.QU Zhe,YE Lie Ping.Equivalent linear analysis in estimating nonlinear seismic responses of building structures[J].Journal of Building Struc-tures,2010,31(9):95-102.(in Chinese)
[4]GB50011-2010建筑抗震设计规范[S].北京:中国建筑工业出版社,2010.GB 50011-2010 Seimic Design of Buildings[S].Beijing:Chinese Architecture Industry Press,2010.(in Chinese)
[5]BSL 2004.The Building Standard Law of Japan[S].Translated by Sansei International Inc.4th ed.Tokyo:The Building Center of Japan,2004.
[6]ASCE 7-05 Minimum Design Loads for Buildings and Other structures[S].2005.
[7]Rosenblueth E,Herrera I.On a kind of hysteretic damping[J].Journal of Engineering Mechanics Division ACSE,1964,90:37-48.
[8]Kowalsky M J.Displacement-based design:A methodology for seismic design applied to RC bridge columns[D].University of California at SanDiego,La Jolla,California,1994.
[9]Gulkan P,Sozen M.Inelastic response of reinforced concrete structures to earthquake motions[J].ACI Journal,1974,71:604-610.
[10]Iwan W D.Estimating inelastic response spectra from elastic spectra[J].Earthquake Engineering and Structural Dynamics,1982,8:375-388.
[11]Kwan W P,Billington S L.Influence of hysteretic behavior on equivalent period and damping of structural systems[J].Journal of Structural En-gineering,2003,129(5):576-585.
[2]Lin Yuyuan,Eduardo Miranda.Evaluation of equivalent linear methods for estimating target displacements of existing structures[J].EngineeringStructures,2009,31(4):3080-3089.
[3]曲哲,叶列平建筑结构弹塑性地震响应计算的等价线性化法研究[J].建筑结构学报,2010,31(9):95-102.QU Zhe,YE Lie Ping.Equivalent linear analysis in estimating nonlinear seismic responses of building structures[J].Journal of Building Struc-tures,2010,31(9):95-102.(in Chinese)
[4]GB50011-2010建筑抗震设计规范[S].北京:中国建筑工业出版社,2010.GB 50011-2010 Seimic Design of Buildings[S].Beijing:Chinese Architecture Industry Press,2010.(in Chinese)
[5]BSL 2004.The Building Standard Law of Japan[S].Translated by Sansei International Inc.4th ed.Tokyo:The Building Center of Japan,2004.
[6]ASCE 7-05 Minimum Design Loads for Buildings and Other structures[S].2005.
[7]Rosenblueth E,Herrera I.On a kind of hysteretic damping[J].Journal of Engineering Mechanics Division ACSE,1964,90:37-48.
[8]Kowalsky M J.Displacement-based design:A methodology for seismic design applied to RC bridge columns[D].University of California at SanDiego,La Jolla,California,1994.
[9]Gulkan P,Sozen M.Inelastic response of reinforced concrete structures to earthquake motions[J].ACI Journal,1974,71:604-610.
[10]Iwan W D.Estimating inelastic response spectra from elastic spectra[J].Earthquake Engineering and Structural Dynamics,1982,8:375-388.
[11]Kwan W P,Billington S L.Influence of hysteretic behavior on equivalent period and damping of structural systems[J].Journal of Structural En-gineering,2003,129(5):576-585.
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