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...
工程力学  2014 

基于Nataf变换的桥梁结构地震易损性分析

DOI: doi:10.6052/j.issn.1000-4750.2012.12.0959, PP. 93-100

Keywords: 桥梁地震易损性,Nataf变换,概率地震需求分析,结构随机参数相关性,均匀设计

Full-Text   Cite this paper   Add to My Lib

Abstract:

地震易损性分析是美国太平洋地震工程研究中心(PEER)提出的“性能化地震工程”理论框架的重要一环.目前所采用的易损性分析方法大多未考虑结构的不确定性及结构随机参数之间的相关性.为此,引入均匀设计考虑结构参数的随机性,同时结合Nataf变换,处理结构随机参数之间的相关性.提出一种综合考虑地震动随机性、结构参数随机性及结构随机参数相关性的桥梁结构地震易损性分析方法.以一座三跨连续梁为例,分别在考虑结构随机参数相关性和不考虑结构参数相关性的前提下计算其地震易损性.分析结果表明:提出的方法能够有效考虑结构随机参数相关性;忽视结构随机参数相关性会导致高估桥梁结构地震易损性.

References

[1]  Casciati F, Cimellaro G P, Domaneschi M. Seismic reliability of a cable-stayed bridge retrofitted with hysteretic devices[J]. Computers & Structures, 2008, 86(17): 1769―1781.
[2]  Alipour A, Shafei B, Shinozuka M. Performance evaluation of deteriorating highway bridges located in high seismic areas[J]. Journal of Bridge Engineering, 2010, 16(5): 597―611.
[3]  冯清海. 特大桥梁地震易损性与风险概率分析[D]. 上海: 同济大学, 2009. Feng Qinghai. Study on seismic vulnerability and risk probability analysis of super-large bridge[D]. Shanghai: Tongji University, 2009. (in Chinese)
[4]  Mackie K, Stojadinovic B. Probabilistic seismic demand model for California highway bridges[J]. Journal of Bridge Engineering, 2001, 6(6): 468―481.
[5]  吕大刚, 于晓辉, 潘峰. 基于改进云图法的结构概率地震需求分析[J]. 世界地震工程, 2010, 26(1): 7―15. Lü Dagang, Yu Xiaohui, Pan Feng. Probabilistic seismic demand analysis of structures based on an improved cloud method[J]. World Earthquake Engineering, 2010, 26(1): 7―15. (in Chinese)
[6]  吕大刚. 基于线性化Nataf变换的一次可靠度方法[J]. 工程力学, 2007, 24(5): 79―86. Lü Dagang. First order reliability method based on linearized Nataf transformation[J]. Engineering Mechanics, 2007, 24(5): 79―86. (in Chinese)
[7]  吴帅兵, 张坤, 李典庆. 相关非正态变量变换时相关性变化对可靠度的影响[J]. 武汉大学学报, 2011, 44(2): 151―155. Wu Shuaibing, Zhang Kun, Li Dianqing. Effect of correlation change from transformation of correlated abnormal variables on structural reliability[J]. Engineering Journal of Wuhan University, 2011, 44(2): 151―155. (in Chinese)
[8]  Shinozuka M, Feng M Q, Lee J, et al. Statistical analysis of fragility curves[J]. Journal of Engineering Mechanics, 2000, 126(12): 1224―1231.
[9]  Hwang H, Huo J R. Probabilistic seismic damage assessment of highway bridges[C]// 6th US National Conference on Earthquake Engineering. Seattle, Washington: EERI, 1998: 10―28.
[10]  肖刚, 李天柁. 系统可靠性分析中的蒙特卡罗方法[M]. 北京: 科学出版社, 2003: 37―61. Xiao Gang, Li Tiantuo. Monte Carlo method in system reliability analysis[M]. Beijing: Science Press, 2003: 37―61. (in Chinese)
[11]  方开泰. 均匀设计与均匀设计表[M]. 北京: 科学出版社, 1994: 1―23. Fang Kaitai. Uniform design and uniform design table[M]. Beijing: Science Press, 1994: 1―23. (in Chinese)
[12]  Mazzoni S, McKenna F, Scott M H, et al. OpenSees command language manual[M]. Pacific Earthquake Engineering Research (PEER) Center, 2006.
[13]  Scott B D, Park R, Priestley M J N. Stress-strain behavior of concrete confined by overlapping hoops at low and high strain rates[C]// ACI Journal Proceedings. Farmington Hills, MI: ACI, 1982, 79(1): 13―27.
[14]  Barbato M, Gu Q, Conte J P. Probabilistic push-over analysis of structural and soil-structure systems[J]. Journal of Structural Engineering, 2010, 136(11): 1330―1341.
[15]  Liu P L, Der Kiureghian A. Multivariate distribution models with prescribed marginal and covariance[J]. Probabilistic Engineering Mechanics, 1986, 1(2): 105―112.
[16]  Stone W C, Taylor A W. Seismic performance of circular bridge columns designed in accordance with AASHTO/ CALTRANS standards[M]. Alexandria, VA: National Institute of Standards and Technology, 1993: 102―106.
[17]  Choi E, DesRoches R, Nielson B. Seismic fragility of typical bridges in moderate seismic zones[J]. Engineering Structures, 2004, 26(2): 187―199.
[18]  Yang C S, DesRoches R, Padgett J E. Fragility curves for a typical California box girder bridge[C]// Proc., TCLEE 2009 ASCE Technical Council on Lifeline Earthquake Engineering Conf.: Lifeline Earthquake Engineering in a Multihazard Environment. Reston, VA: ASCE, 2009: 1―12.

Full-Text

comments powered by Disqus

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133

WeChat 1538708413