Wind-induced lateral-torsional coupled responses of tall buildings

doi:10.12989/was.2008.11.2.153

機構典藏 > College of Engineering > Graduate Institute & Department of Civil Engineering > Journal Article > Item 987654321/69817

jsp.display-item.identifier=請使用永久網址來引用或連結此文件: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/69817

题名:	Wind-induced lateral-torsional coupled responses of tall buildings
作者:	Wu, J. R.;Li, Q.S.;Tuan, Alex Y.
贡献者:	淡江大學土木工程學系
关键词:	tall building;wind-induced vibration;wind tunnel test;dynamic analysis
日期:	2008-03
上传时间:	2011-10-23 20:10:54 (UTC+8)
摘要:	Based on the empirical formulas for power spectra of generalized modal forces and local fluctuating wind forces in across-wind and torsional directions, the wind-induced lateral-torsional coupled response analysis of a representative rectangular tall building was conducted by setting various parameters such as eccentricities in centers of mass and/or rigidity and considering different torsional to lateral stiffness ratios. The eccentricity effects on the lateral-torsional coupled responses of the tall building were studied comprehensively by structural dynamic analysis. Extensive computational results indicated that the torsional responses at the geometric center of the building may be significantly affected by the eccentricities in the centers of mass and/or rigidity. Covariance responses were found to be in the same order of magnitude as the along-wind or across-wind responses in many eccentricity cases, suggesting that the lateral-torsional coupled effects on the overall wind-induced responses can not be neglected for such situations. The calculated results also demonstrated that the torsional motion contributed significantly to the total responses of rectangular tall buildings with mass and/or rigidity eccentricities. It was shown through this study that the framework presented in this paper provides a useful tool to evaluate the wind-induced lateral-torsional coupled responses of rectangular buildings, which will enable structural engineers in the preliminary design stages to assess the serviceability of tall buildings, potential structural vibration problems and the need for a detailed wind tunnel test.
關聯:	Wind & Structures 11(2), pp.153-178
DOI:	10.12989/was.2008.11.2.153
显示于类别:	[Graduate Institute & Department of Civil Engineering] Journal Article

文件中的档案:

档案	大小	格式	浏览次数
index.html	0Kb	HTML	313	检视/开启

在機構典藏中所有的数据项都受到原著作权保护.

TAIR相关文章

Loading...