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  2015 

矩形截面高层建筑扭转向脉动风荷载数学模型

DOI: 10.6052/j.issn.1000-4750.2013.11.1105, PP. 177-182

Keywords: 高层建筑,扭转向脉动风荷载,风洞试验,数学模型,抗风设计

Full-Text   Cite this paper   Add to My Lib

Abstract:

在边界层风洞中完成了一系列矩形截面高层建筑刚性模型的同步测压试验,研究了根方差扭矩系数和基底扭矩功率谱的基本特性。结果表明,层根方差扭矩系数沿高度呈抛物线分布,基底根方差扭矩系数随厚宽比的增大而增大。厚宽比小于1时,基底扭矩功率谱有一个明显的窄带谱峰;厚宽比大于1时,出现两个谱峰,随着厚宽比的增大,两个谱峰逐渐靠近。以厚宽比为自变量,拟合得到了根方差扭矩系数和基底扭矩功率谱的计算公式。

References

[1]  Solari G. Mathmatical model to predict 3-D wind loading on buildings [J]. Journal of Engineering Mechanics, 1985, 111(2): 254―276.
[2]  Isyumov N, Poole M. Wind induced torque on square and rectangular building shapes [J]. Journal of Wind Engineering and Industrial Aerodynamics, 1983, 13(1/2/3): 183―196.
[3]  Tamura Y, Ohkuma T, Okada H, et al. Wind loading standards and design criteria in Japan [J]. Journal of Wind Engineering and Industrial Aerodynamic, 1999, 83(1/2/3): 555―566.
[4]  梁枢果, 瞿伟廉, 李桂青. 高层建筑横风向与扭转风振力计算[J]. 土木工程学报, 1991, 24(4): 65―73.
[5]  Liang Shuguo, Qu Weilian, Li Guiqing. An evaluation of dynamic loads in across-wind direction and torsion on tall buildings [J]. China Civil Engineering Journal, 1991, 24(4): 65―73. (in Chinese)
[6]  Kareem A. Wind induced torsional loads on structures [J]. Engineering structure, 1981, 3(2): 85―86.
[7]  Cheung J C K, Melbourne W H. Torsional moments of tall buildings [J]. Journal of Wind Engineering and Industrial Aerodynamics, 1992, 42(1/2/3): 1125―1126.
[8]  Kanda J, Choi H. Correlating dynamic wind force components on 3-D cylinders [J]. Journal of Wind Engineering and Industrial Aerodynamics, 1992, 41(1/2/3): 785―796.
[9]  Choi H, Kanda J. Proposed formulae for the power spectral densities of fluctuating lift and torque on rectangular 3-D cylinders [J]. Journal of Wind Engineering and Industrial Aerodynamics, 1993(46/47): 507―516.
[10]  Liang S, Li Q S, Liu S, Zhang L, Gu M. Torsional dynamic wind loads on rectangular tall buildings [J]. Engineering Structures, 2004, 26(1): 129―137.
[11]  [Lin N, Letchford C, Tamura Y, Liang B, Nakamura O. Characteristics of wind forces acting on tall buildings [J]. Journal of Wind Engineering and Industrial Aerodynamics, 2005, 93(3): 217―242.
[12]  唐意, 顾明, 全涌. 高层建筑的扭转风荷载功率谱密度[J]. 同济大学学报(自然科学版), 2007, 35(4): 435―449. Tang Yi, Gu Ming, Quan Yong. Power spectral densities of torsional wind loads on tall buildings [J]. Journal of Tongji University (Natural Science), 2007, 35(4): 435―449. (in Chinese)
[13]  唐意, 顾明, 全涌. 矩形截面超高层建筑风致脉动扭矩的数学模型[J]. 建筑结构学报, 2009, 30(5): 198―204. Tang Yi, Gu Ming, Quan Yong. Mathematical model of torsional fluctuating wind force on rectangular super-tall buildings [J]. Journal of Building Structures, 2009, 30(5): 198―204. (in Chinese)
[14]  AIJ Recommendations for Loads on Buildings [S]. Tokyo, Japan: Architectural Institute of Japan, 2004.
[15]  Zhou Y, Kijewski T, Kareem A. Aerodynamic loads on tall buildings: Interactive database [J]. Journal of Structural Engineering, 2003, 129(3): 394―404.
[16]  余世策, 韩新刚, 冀晓华, 等. 测压管路动态特性实测技术研究[J]. 实验技术与管理, 2012: 29(2): 40―43. Yu Shice, Han Xingang, Ji Xiaohua, et al. Study on measurement technology of dynamics characteristics of typical tubes for pressure measurements [J]. Experimental Technology and Management, 2012: 29(2): 40―43. (in Chinese)
[17]  梁枢果, 邹良浩, 郭必武. 基于刚性模型测压风洞试验的武汉国际证券大厦三维风致响应分析[J]. 工程力学, 2009, 26(3): 118―127.
[18]  Liang Shuguo, Zou Lianghao, Guo Biwu. Investigation on wind-induced 3-D responses of Wuhan International Stock Building based on wind tunnel tests of rigid models [J]. Engineering Mechanics, 2009, 26(3): 118―127. (in Chinese)
[19]  Gu M, Quan Y. Across-wind loads of typical tall buildings [J]. Journal of Wind Engineering and Industrial Aerodynamics, 2004, 92(13): 1147―1165.
[20]  顾明, 唐意, 全涌. 矩形截面超高层建筑风致脉动扭矩的基本特征[J]. 建筑结构学报, 2009, 30(5): 191―197 .
[21]  Gu Ming, Tang Yi, Quan Yong. Basic characteristics of torsional fluctuating wind force on rectangular super-tall buildings [J]. Journal of Building Structures, 2009, 30(5): 191―197. (in Chinese)

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133