Long-term field measurement and analysis of the natural wind characteristics at the site of Xi-hou-men Bridge  

作　　者：Ming LIU Hai-li LIAO Ming-shui LI Cun-ming MA Mei YU 

机构地区：[1]Research Center for Wind Engineering, Southwest Jiaotong University, Chengdu 610031, China [2]Chongqing Jiaotong University, Chongqing 400074, China

出　　处：《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》2012年第3期197-207,共11页浙江大学学报（英文版）A辑（应用物理与工程）

基　　金：Project supported by the National Natural Science Foundation of China (No. 50808148);the National Key Technology R&D Program (No. 2008BAG07B02), China

摘　　要：In order to investigate the wind characteristics of coastal areas of China, a long-term field measurement of natural wind was carried out. Based on the field measurement results, this paper presents the natural wind characteristics of typhoons and strong monsoons at the site of Xi-hou-men Bridge, including mean wind speed, mean wind direction, mean wind elevation angle, turbulent intensity, gust factor, turbulence integral length scales, power spectrum of wind speed and spatial correlation of gusty wind, the profiles of mean wind speed and turbulent intensity, etc. The correlation among wind characteristics is analyzed in detail, and the similarities and differences of wind characteristics between typhoons and monsoons are analyzed. These results can pro- vide detailed wind characteristics of coastal areas of China.In order to investigate the wind characteristics of coastal areas of China, a long-term field measurement of natural wind was carried out. Based on the field measurement results, this paper presents the natural wind characteristics of typhoons and strong monsoons at the site of Xi-hou-men Bridge, including mean wind speed, mean wind direction, mean wind elevation angle, turbulent intensity, gust factor, turbulence integral length scales, power spectrum of wind speed and spatial correlation of gusty wind, the profiles of mean wind speed and turbulent intensity, etc. The correlation among wind characteristics is analyzed in detail, and the similarities and differences of wind characteristics between typhoons and monsoons are analyzed. These results can pro- vide detailed wind characteristics of coastal areas of China.

关 键 词：Wind characteristics Field measurement Wind spectrum Wind profiles Spatial correlation 

分 类 号：U44[建筑科学—桥梁与隧道工程]