全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

基于多因素分析的桥梁结构地震滞回耗能比值谱研究

, PP. 50-58

Keywords: 桥梁工程,单自由度体系,多因素分析,滞回耗能,比值谱,统计计算

Full-Text   Cite this paper   Add to My Lib

Abstract:

?以3种场地下的214条近断层地震记录为输入,以分别简化为理想弹塑性、双线性和刚度退化滞回模型的单自由度体系的桥梁结构在大量近场地震作用下的滞回耗能分析为基础,从地震动特征和结构特性2个角度分别定量讨论了多种因素对结构滞回耗能比值谱的影响规律;用数值计算结果对比验证了各学者所建议模型存在的不足,并用统计回归方法建议了适用于0~15km近断层范围内的滞回耗能比值谱。结果表明:决定滞回耗能分配比例的主要因素是结构阻尼、延性系数和结构自振周期;所建议的比值谱能更全面地反映影响能量分配的主要因素,且取值更符合实际地震动的能量分配特征,可用于基于能量原理的桥梁结构抗震设计。

References

[1]  AKIYAMA H.Earthquake-resistant Limit-state Design for Buildings[M].Tokyo:University of Tokyo Press,1985.
[2]  CHAI Y H,FAJFAR P,ROMSTAD K M.Formulation of Duration-dependent Inelastic Seismic Design Spectrum[J].Journal of Structural Engineering,1998,124(8):913-921.
[3]  DECANINI L D,MOLLAIOLI F.An Energy-based Methodology for the Assessment of Seismic Demand[J].Soil Dynamics and Earthquake Engineering,2001,21(2):113-137.
[4]  LAWSON R S,KRAWINKLER H.Cumulative Damage Potential of Seismic Ground Motion[C]//DUMA C.Proceedings of the 10th European Conference on Earthquake Engineering.Vienna:Balkema,1995:1079-1086.
[5]  江 辉.近场地震下桥梁结构基于性能抗震设计的能量方法[D].北京:北京交通大学,2007.
[6]  JIANG Hui.Performance-based Seismic Design of Bridge Structure Excited by Near-fault Earthquake Using Energy Concept[D].Beijing:Beijing Jiaotong University,2007.
[7]  BENAVENT-CLIMENT A,PUJADES L G,LOPEZ-ALMANSA F.Design Energy Input Spectra for Moderate-seismicity Regions[J].Earthquake Engineering & Structural Dynamics,2002,31(5):1151-1172.
[8]  TRIFUNAC M D,BRADY A G.A Study on the Duration of Strong Earthquake Ground Motion[J].Bulletin of Seismological Society of America,1975,65(3):581-626.
[9]  江 辉,朱 晞.近断层区的输入能量设计谱及其在基于能量抗震设计中的应用[J].地震工程与工程振动,2006,26(5):102-108.
[10]  JIANG Hui,ZHU Xi.Energy Input Design Spectra for Near-fault Regions and Application in Energy-based Seismic Design[J].Earthquake Engineering and Engineering Vibration,2006,26(5):102-108.
[11]  HOUSNER G W.Limit Design of Structures to Resist Earthquake[C]//HOUSNER G W.Proceedings of 1st World Conference on Earthquake Engineering.Oakland:EERI,1956:1-11.
[12]  FAJFAR P,VIDIC T.Consistent Inelastic Design Spectra:Hysteretic and Input Energy[J].Earthquake Engineering & Structural Dynamics,1994,23(5):523-537.
[13]  MANFREDI G.Evaluation of Seismic Energy Demand[J].Earthquake Engineering and Structural Dynamics,2001,30(4):485-499.
[14]  TERAN-GILMORE A.Energy Concepts and Damage Indices[C]//CUREE.EERC-CUREe Symposium in Honor of Vitelmo V Bertero.Arlington:National Science Foundation,1997:133-140.
[15]  KUWAMURA H,GALAMBOS T V.Earthquake Load for Structural Reliability[J].Journal of Structural Engineering,1989,115(6):1446-1462.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133