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...

空间变化场地对超高墩铁路桥梁地震响应的影响

Keywords: 桥梁工程,铁路桥梁,虚拟激励法,超高墩,空间变化场地

Full-Text   Cite this paper   Add to My Lib

Abstract:

为了研究空间变化场地对山区超高墩铁路桥梁抗震性能的影响,以贵州省境内一座超高墩铁路桥梁为工程背景,采用虚拟激励法对此超高墩铁路桥梁在空间变化场地条件下进行了抗震性能理论分析和数值模拟。考虑了多维地震动作用下,硬场地、中场地和软场地三种不同场地空间变化分布组合对此类桥梁随机地震响应的影响。研究结果表明不同的场地分布组合对超高墩铁路桥梁地震响应影响不同,最高墩处的场地条件对结构响应的影响尤为明显;最高墩处为软场地,其他墩为硬场地时结构响应最大,为最不利工况,应予避免;对于超高墩铁路桥梁地震响应分析应充分考虑空间变化场地条件的影响因素,否则会低估地震作用下结构的响应。

References

[1]  贾宏宇,郑史雄基于场地效应的山区高墩桥梁随机地震响应分析[J]公路交通科技,zolz, z9 (6):93-97JIA Hong-yu, ZHEN( Shi-xiong. Analysis of RandomSeismic; Response of High-rise Pier Bridge in MountainArea Based on Site Effect[J]Journal of Highway andTransportation Research and Development, 2012,29(6):93-97
[2]  BI K, HAO H. Modeling and Simulation of SpatiallyVarying Earthquake Ground Motions at Sites with VaryingConditions[J]Probabilistic; Engineering Mechanic、,2012,29:92-104
[3]  ZHAN Y H,LIQS,LINJH,et al. Random VibrationAnalysis of Long-span Structures Subjected to SpatiallyVarying (round Motions[J]Soil Dynamic、andEarthquake Engineering, 2009,29 (4):620-629
[4]  LIN Jia-hao, ZHANG Ya-hui, ZHAO Yan. SeismicSpatial Effects on Dynamic; Response of Long-span Bridgesin Stationary Inhomogeneous Random Fields[J]Earthquake Engineering and Engineering Vibration, 2004,3 (2):171-180
[5]  江洋,石永久,王元清实用多点输人虚拟激励法在通用有限元软件中的实现[J]地震I_程与I_程振动,2010,30(1):46-52JIANG Yang, SHI Yong-jiu, WANG Yuan-qingImplementation of the Prac;tic;al Pseudo Excitation Methodfor Multi-、upport Seismic P esponse Analysis in GeneralFEM Software[J]Earthquake Engineering andEngineering Vibration, 2010,30(1):46-52
[6]  李永华,李思明绝对位移直接求解的虚拟激励法[J]振动与冲击,zoo9, z8 lo>: 18s-190LI Yong-hua, LI Si-ming. Pseudo Excitation Method Based on Solving Absolute Displacement[J]. Journal of Vibration and Shock, 2009,28(10):18s-190
[7]  贾宏宇,郑史雄,陈冠桦多维多点虚拟激励法在ANSYS中的应用[J]地震工程与工程振动,2012,32 (4):7-12JIA Hong-yu, ZHENG Shi-xiong, CHEN Quan-huaPseudo Excitation Method Applied to Multi-dimensional anti Multi-support Excitations in ANSYS[J]. Earthquake Engineering and Engineering Vibration, 2012,32(4):7-12
[8]  贾宏宇,郑史雄直接求解多维多点地震动方程的虚 拟激励法[J]. 工程力学,2013, 30 (3):341-346 JIA Hong-yu, ZHENG Shi-xiong. Pseudo Excitation Method of Direct Solving Ground Motion Equation of Multi-dimensional and Multi-support Excitation[J]Engineering Mechanic、,2013,30(3):341-346
[9]  林家浩,张亚辉随机振动的虚拟激励法
[10]  [M〕北京:科学出版社,2006LIN Jia-hao, ZHANG Ya-hui. Pseudo Excitation Method for Random Vibration[M]Beijing; Science Press,2006
[11]  曹资,薛素铎空间结构抗震理论与设计
[12]  [M〕北京:科学出版社,2006CAO Zi,XUE Su-duo. Seismic Analysis and Design of Spatial Structures[M]Beijing; Science Press,2006
[13]  DER KIUREGHIAN A, NEUENHOFER A. Response Spectrum Method for Multi-support Seismic; Excitations[J]Earthquake Engineering and Structural Dynamis,1992,21(8):713-740
[14]  屈铁军,王君杰王前信空间变化的地震动功率谱的实用模型[J]地震学报,1996, 18 (1): 55-62 QU Tie-jun, WANG Jun-jie, WANG Qian-xin. Practical Ground Motion PSD Model with Spatial Effect[J]Acta Seismologica Sinica, 1996,18(1):55-62

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133