WIND LOAD SIMULATION AND WIND-INDUCED VIBRATION TIME-HISTORY ANALYSIS OF TALL BUILDING STRUCTURES
Wind-induced comfort problems of tall buildings have raised more and more attention. Empirical formulas from design codes as well as wind tunnel tests are widely proposed nowadays. However, as the complicate structure systems, especially structures with viscous dampers are widely applied, time-history analysis for wind-induced vibration is considered to be a more precise analysis way. In this paper, auto-regressive model of the linear filter method is used to simulate wind dynamic loads. Spatial correlation of nature wind, as well as dynamic nonlinearity of structure is concerned. Thus, wind-induced response of the structure could be expressed more accurately. The program based on object-oriented program language is developed to produce wind load time-history data. By inputting basic wind pressure, ground roughness and other parameters, wind load time-history data can be obtained, which can be exported to FEM program automatically to carry out wind-induced vibration time-history analysis. The program provides feasible method for wind-induced vibration analysis of tall building structures. Several typical examples are given here by the dynamic time-history analysis in combination with wind load numerical simulation. And the results show the effectiveness of this method in practical structure analysis and design.
tail building structure wind-induced vibration wind load simulation time-history analysis auto-regressive
Gui-Niu Mao Xiao-Lei Han Xue-Wei Chen
Tall Building Structure Research Institute, South China University of Technology, Guangzhou 510640, Tall Building Structure Research Institute, South China University of Technology, Guangzhou 510640,
国际会议
广州
英文
1526-1531
2009-11-28（万方平台首次上网日期，不代表论文的发表时间）