防灾减灾工程学报2017，Vol.37Issue(3)：502-510,9.DOI:10.13409/j.cnki.jdpme.2017.03.025
山区桥址风场特性研究综述
Review on the Characteristics of Wind Fields at Bridge Site in Mountainous Areas
摘要
Abstract
Firstly,for the characteristics of wind field in mountain areas,the main research achievements by using wind tunnel tests,numerical simulations,and field measurements were summarized,and their advantages and disadvantages are compared.Then,the different characteristics of wind field in mountain areas compared with those in the plain areas are comparatively analyzed from the average and the fluctuating wind velocities.In mountainous areas,the surface roughness cannot be simply classified into four categories.The flow attack angel,power spectra of wind velocity,and the mean wind profiles are obviously different from those in plain areas.In the mountainous valleys,obvious accelerating and blocking effects can be observed,which make it more difficult for the wind resistance design of bridges.Several methods for determining the design wind speed at the bridge sites in mountain areas are summarized.It can provide some references for the wind resistance design of bridges in mountainous areas.Finally,the art-of-status of the characteristics of wind field in mountain areas are summarized and the research prospects are addressed.关键词
风工程/山区桥梁/风场特性/风洞试验/数值模拟/现场实测Key words
wind engineering/bridge in mountainous area/characteristics of wind field/wind tunnel test/numerical simulation/field measurement分类
交通工程引用本文复制引用
许福友,周晶..山区桥址风场特性研究综述[J].防灾减灾工程学报,2017,37(3):502-510,9.基金项目
国家重点基础研究发展计划(973)(2015CB057705)资助 （973）
