With the development of railway engineering,there have been more and more large-span railway passenger stations and canopies.Due to the complexity,uniqueness and large span of the station and the canopy structure,the wind load value can not be obtained from the existing national standard Structural Load Specification,and the accurate and reasonable wind load value is very important for structural safety and control of project cost,which has made it necessary to carry out wind tunnel test.Taking a railway passenger station and its canopy as the engineering background,the rigidity model is selected as the research object to measure the surface wind pressure coefficient,and finite element software is used to analyze wind-induced dynamic response and calculate the node displacement and the wind pressure coefficient.Finally the equivalent wind load values of the station and the canopy structure are obtained.The results show that the equivalent wind load values are decreasing in the wind direction and the value is very large at the roof edge of the windward side.%随着铁路工程的发展,出现了越来越多的大跨度铁路客站站房及雨棚.由于站房及雨棚结构的复杂性、唯一性及自身大跨度等显著特点,其风荷载值并不能从现行的《建筑结构荷载规范》中获取,而准确合理的风荷载取值对确保结构安全和控制工程造价又十分重要,所以有必要对其进行风洞试验.以某铁路客站站房及雨棚为工程背景,试验选取刚性模型作为研究对象,测定表面风压系数,并通过有限元软件分析风致动力响应,计算出节点位移和杆件内力的风振系数,最终得出站房和雨棚结构的等效风荷载值.结果表明等效风荷载值均顺风向递减,且在迎风侧的屋面边缘处值很大.
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