Wind Vibration Study of Long-span Steel Arch Structure of Beijing Capital International Airport  

作　　者：周岱 马俊 朱忠义 柳杰 

机构地区：[1]Research Center of Spatial Structures, School of Naval Architecture,Ocean and Civil Eng., Shanghai Jiaotong Univ.,Shanghai 200030, China [2]Beijing Inst.of Architectural Design, Beijing 100045

出　　处：《Journal of Shanghai Jiaotong university(Science)》2005年第4期429-435,共7页上海交通大学学报（英文版）

基　　金：National Natural Science Foundation ofChina (No.50278054) and the Fund ofScience and Technology Development ofShanghai (No.04JC14059)

摘　　要：The wind-induced dynamic response of long-span light-weight steel arch structure of the global transportation center (GTC) of Beijing Capital International Airport was studied. A composite technique with combination of WAWS(Weighted Amplitude Wavelet Superposition) and FFT(Fast Fourier Transformation) was introduced to simulate wind velocity time series of hundreds of spatial points simultaneously. The structural shape factors of wind load was obtained from wind tunnel model test. The wind vibration factor based on structural displacement response was investigated. After comparing the computational results with wind tunnel model test data, it was found out that the two results accord with each other if wind comes from 0° direction angle, but are quite different if wind comes from 180° direction angle in the area blocked off by airport terminals. The possible reasons of this difference were analyzed. Haar wavelet was used to transform and analyze wind velocity time series and structural wind-induced dynamic responses. The relationship between exciting wind loads and structural responses was studied in time and frequency domains.The wind-induced dynamic response of long-span light-weight steel arch structure of the global trans-portation center （GTC） of Beijing Capital International Airport was studied. A composite technique with combination of WAWS （Weighted Amplitude Wavelet Superposition） and FFT （Fast Fourier Transformation） was introduced to simulate wind velocity time series of hundreds of spatial points simultaneously. The structural shape factors of wind load was obtained from wind tunnel model test. The wind vibration factor based on structural displacement response was investigated. After comparing the computational results with wind tunnel model test data, it was found out that the two results accord with each other if wind comes from 0° direction angle, but are quite different if wind comes from 180° direction angle in the area blocked off by airport terminals. The possible reasons of this difference were analyzed. Haar wavelet was used to transform and analyze wind velocity time series and structural wind-induced dynamic responses. The relationship between exciting wind loads and structural responses was studied in time and frequency domains.

关 键 词：steel arch structure wind velocity time series wind-induced vibration factor wavelet analysis 

分 类 号：TU248.6[建筑科学—建筑设计及理论]