Torsional dynamic wind loads on rectangular tall buildings

被引:49
作者
Liang, SG [1 ]
Li, QS
Liu, SC
Zhang, LL
Gu, M
机构
[1] Wuhan Univ, Dept Civil Engn, Hubei 430072, Peoples R China
[2] City Univ Hong Kong, Dept Bldg & Construct, Hong Kong, Hong Kong, Peoples R China
[3] China Aerodynam Res & Dev Ctr, Sichuan 622662, Peoples R China
[4] Tongji Univ, Dept Bridge Engn, Shanghai 200092, Peoples R China
基金
中国国家自然科学基金;
关键词
tall building; vibration; wind tunnel test; wind effect; torsional load;
D O I
10.1016/j.engstruct.2003.09.004
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
Wind-induced dynamic torque on rectangular cylinders with various side ratios is investigated through a series of model tests in a boundary layer wind tunnel. Based on the experimental investigation, this paper presents empirical formulae of torque spectra, RMS torque coefficients and Strouhal number, as well as coherence functions of torque. An analytical model of wind-induced dynamic torque on rectangular tall buildings is established accordingly. Comparisons of the results from the proposed model and the wind tunnel measurements verify the reliability and applicability of the developed model for evaluation of torsional dynamic wind loads on rectangular tall buildings. A calculation method is presented based on the proposed model to estimate wind-induced torsional responses of rectangular tall buildings in the frequency domain. (C) 2003 Published by Elsevier Ltd.
引用
收藏
页码:129 / 137
页数:9
相关论文
共 16 条
[1]  
CHEUNG JCK, 1992, J WIND ENG IND AEROD, V41, P1125
[2]   PROPOSED FORMULAS FOR THE POWER SPECTRAL DENSITIES OF FLUCTUATING LIFT AND TORQUE ON RECTANGULAR 3-D CYLINDERS [J].
CHOI, H ;
KANDA, J .
JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS, 1993, 46-7 :507-516
[3]  
Holmes J.D., 2001, WIND LOADING STRUCTU
[4]   WIND INDUCED TORQUE ON SQUARE AND RECTANGULAR BUILDING SHAPES [J].
ISYUMOV, N ;
POOLE, M .
JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS, 1983, 13 (1-3) :183-196
[5]   Full scale measurements of wind effects on tall buildings [J].
Li, QS ;
Fang, JQ ;
Jeary, AP ;
Wong, CK .
JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS, 1998, 74-6 :741-750
[6]  
Li QS, 2000, EARTHQUAKE ENG STRUC, V29, P1845, DOI 10.1002/1096-9845(200012)29:12<1845::AID-EQE995>3.0.CO
[7]  
2-Q
[8]  
LI QS, 2000, HONG KONG I ENG T, V7, P47
[9]   Mathematical model of acrosswind dynamic loads on rectangular tall buildings [J].
Liang, SG ;
Liu, SC ;
Li, QS ;
Zhang, LL ;
Gu, M .
JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS, 2002, 90 (12-15) :1757-1770
[10]   Control of 3-D coupled responses of wind-excited tall buildings by a spatially placed TLCD system [J].
Liang, SG ;
Li, QS ;
Qu, WL .
WIND AND STRUCTURES, 2000, 3 (03) :193-207