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  2013 

地震反应分析中Rayleigh阻尼系数的优化解

DOI: 10.6052/j.issn.1000-4750.2012.05.0366

Keywords: 地震反应,Rayleigh阻尼,优化分析,反应谱,反应谱导数

Full-Text   Cite this paper   Add to My Lib

Abstract:

在进行多自由度粘滞阻尼体系的地震反应分析时,以结构位移反应峰值的误差为目标函数,建立了求解Rayleigh阻尼系数的优化方程。随后,以地震反应谱随阻尼比变化的经验公式为基础,形成地震反应谱导数的近似计算公式。从而形成一个仅需地震反应谱和结构模态分析成果,即可得到综合考虑结构动力特性、地震波输入方向和频谱特性的Rayleigh阻尼系数的计算方法。最后,任意选择10条地震波对一栋高层建筑进行地震反应分析,数值计算结果表明这一方法可有效地减少由阻尼引起的计算误差。

References

[1]  Wu Xutao, Hu Shisheng, Chen Dexing, et al. Impact compression experiment of steel fiber reinforced high strength concrete [J]. Explosion and Shock Waves, 2005, 25(2): 125―131. (in Chinese)
[2]  潘家军, 王观琪, 江凌, 饶锡保, 徐晗. 基于ABAQUS的高混凝土面板堆石坝地震反应三维非线性分析[J].水力发电学报, 2011, 30(6): 80―84.
[3]  Pan Jiajun, Wang Guanqi, Jiang Ling, Rao Xibao, Xu Han. ABAQUS three-dimensional nonlinear analysis of seismic responses of high CFRD [J]. Journal of Hydroelectric Engineering, 2011, 30(6): 80―84. (in Chinese)
[4]  Bilbao A, Aviles R, Agirrebeitia J, Ajuria D. Proportional damping approximation for structures with added viscoelastic dampers [J]. Finite Elements in Analysis and Design, 2006, 42(6): 492―502.
[5]  楼梦麟, 潘旦光. 滞后阻尼在土层时域分析中的应用[J]. 同济大学学报, 2004, 32(3): 281―285.
[6]  Lou Menglin, Pan Danguang. Hysteretic damping application in time domain analysis of soil layer [J]. Journal of Tongji University, 2004, 32(3): 281―285. (in Chinese)
[7]  Farzin Zareian, Ricardo A Medina. A practical method for proper modeling of structural damping in inelastic plane structural systems [J]. Computers and Structures, 2010, 88(1/2): 45―53.
[8]  Trombetti T, Silvestri S. Novel schemes for inserting seismic dampers in shear-type systems based upon the mass proportional component of the Rayleigh damping matrix [J]. Journal of Sound and Vibration, 2007, 302(3): 486―526.
[9]  Papageorgiou A V, Gantes C J. Equivalent modal damping ratios for concrete-steel mixed structures [J]. Computers and Structures, 2010, 88(19/20): 1124―1136.
[10]  Clough R W, Penzien J. Dynamics of structures [M]. New York: McGraw-Hill, 1975: 194―198.
[11]  Chopra A K. Dynamics of structures: Theory and applications to earthquake engineering [M]. New Jersey: Englewood Cliffs, Prentice-Hall, 1995: 416―421.
[12]  潘旦光. 直接确定Rayleigh阻尼系数的一种优化方法[J]. 工程力学, 2013, 30(9): 16―21.
[13]  Newmark N M, Hall W J. Earthquake spectra and design, Earthquake engineering research institute [R]. California: Berkeley, 1982: 29―37.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133