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...

基于地震输入能量的刚度退化单自由度体系非弹性变形简化计算方法

, PP. 64-71

Keywords: 桥梁工程,单自由度体系,统计分析,等效速度比,输入能量,近场地震

Full-Text   Cite this paper   Add to My Lib

Abstract:

?以简化成单自由度(SDOF)体系结构在地震作用下的输入能量为基础,研究地震输入能量和结构最大变形之间的关系。对于刚度退化SDOF体系,引入表征能量和变形间关系的等效速度比参数,以3种场地下的214条近断层地震记录为输入,采用非线性时程计算和统计分析方法,提取累积输入能量、瞬时输入能量和非弹性变形间关系的分布特征,提出了不同场地下等效速度比的分段线性化函数,并用多自由度(MDOF)桥墩算例的时程计算结果进行了对比分析。结果表明:所建议的简化计算方法是有效的,可用于基于能量的桥梁结构抗震设计与评估。

References

[1]  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.
[2]  TERAN-GILMORE A.Performance-based Earthquake-resistant Design of Framed Buildings Using Energy Concepts[D].Berkeley:University of California,Berkeley,1996.
[3]  HORI N,INOUE N.Damaging Properties of Ground Motions and Prediction of Maximum Response of Structures Based on Momentary Energy Response[J].Earthquake Engineering & Structural Dynamics, 2002,31(9):1657-1679.
[4]  HU Rong-rong,WANG Ya-yong.A Study on Relation of Instantaneous Energy of Earthquake Strong Motion and Maximum Displacement Response of Structures[J].Journal of Building Structures,2000,21(1):71-76.
[5]  HU Rong-rong,WANG Ya-yong.Maximum Seismic Displacement of Inelastic SDOF Structure Based on Momentary Input Energy[J].World Earthquake Engineering,2002,18(4):155-158.
[6]  XIAO Ming-kui,BAI Shao-liang,LAI Ming,et al.Maximum Displacement Estimation of Seismic Structures Based on Hysteresis Energy[J].Journal of Chongqing University,2003,26(3):133-137.
[7]  JIANG Hui,ZHU Xi.Inelastic Strength Demand of Near-fault Ground Motions Considering Energy Damage Effect[J].China Safety Journal,2005,15(5):8-12.
[8]  JIANG Hui.Performance-based Seismic Design of Bridge Structure Excited by Near-fault Earthquake Using Energy Concept[D].Beijing:Beijing Jiaotong University,2007.
[9]  FAJFAR P.Equivalent Ductility Factor,Taking into Account Low-cycle Fatigue[J].Earthquake Engineering & Structural Dynamics,1992,21(9):837-848.
[10]  YE L P,OTANI S.Maximum Seismic Displacement of Inelastic Systems Based on Energy Concept[J].Earthquake Engineering & Structural Dynamics,1999,28(12):1483-1499.
[11]  胡冗冗,王亚勇.地震动瞬时能量与结构最大位移反应关系研究[J].建筑结构学报,2000,21(1):71-76.
[12]  胡冗冗,王亚勇.基于瞬时输入能量的SDOF弹塑性结构最大位移反应分析[J].世界地震工程,2002,18(4):155-158.
[13]  肖明葵,白绍良,赖 明,等.基于滞回耗能的抗震结构最大位移反应[J].重庆大学学报,2003,26(3):133-137.
[14]  江 辉,朱 晞.近断层地震动考虑能量损伤效应的非弹性强度需求[J].中国安全科学学报,2005,15(5):8-12.
[15]  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.
[16]  HINDI R A,SEXSMITH R G.Inelastic Damage Analysis of Reinforced Concrete Bridge Columns Based on Degraded Monotonic Energy[J].Journal of Bridge Engineering,2004,9(4):326-332.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133