以哈尔滨西客站站房屋盖结构为研究对象,采用刚性模型同步测压风洞试验对建筑表面的平均及脉动风荷载进行测定,结合本征正交分解技术对风压场进行重构及预测,解决了风压测点与结构有限元模型节点的不匹配问题。分别建立整体结构和屋盖结构有限元模型,利用时程分析方法考察了下部结构对风致响应的影响,研究表明下部结构会导致屋盖结构的刚度弱化,建模中忽略下部结构可能导致对屋盖结构位移和内力响应的低估。引入多目标等效静风荷载分析方法,以结构在风荷载作用下的最大动力响应为控制指标获得针对多个等效目标的静风荷载分布,并对等效结果进行了验证,结果表明该方法可以实现以少量静风荷载分布形式实现所有响应均与动力极值响应等效。 Taking the roof structure of Harbin West Railway Station as a research object, the average and fluctuating wind loads on the building surface were measured by a rigid model synchronous pressure wind tunnel test, and the wind pressure field was reconstructed and predicted with the in-line orthogonal decomposition technique. Solve the wind pressure measuring point and structural finite element model node mismatch problem. The finite element model of the whole structure and the roof structure are respectively established. The influence of the substructure on the wind response is investigated by means of the time history analysis. The results show that the substructure can weaken the rigidity of the roof structure. Underestimation of displacement and internal force response of lid structure. The equivalent static wind load analysis method is introduced to obtain the static wind load distribution for multiple equivalent targets with the maximum dynamic response under wind load as the control index. The results of the equivalence test show that The method can be achieved with a small amount of static wind load distribution to achieve all the responses are equivalent to the dynamic extremum response.