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在刚性建筑模型风洞测压试验的基础上,该文首先根据脉动风荷载引起的多个等效目标响应而对由结构上脉动风荷载的协方差本征变换得到的本征模态进行补偿,然后提出了一种新的计算线性复杂大跨屋盖脉动风荷载的等效静力风荷载的方法,最后并应用于一实际工程中。计算结果表明该文方法具有物理含义明确、计算方法简单和计算精度较高的优点,能比较有效地避免以前传统方法计算等效静力风荷载的缺陷,可以满足工程设计的需求。
Based on the pressure test of the wind tunnel in a rigid building model, this paper firstly compensates for the eigenmodes obtained from the covariance eigenmode transformation of the structural fluctuating wind loads according to the multiple equivalent target responses caused by the fluctuating wind loads Then a new method to calculate the equivalent static wind load of linear complex long-span roof pulsating wind load is proposed. Finally, it is applied to a practical project. The calculation results show that the proposed method has the advantages of definite physical meaning, simple calculation method and high calculation precision, and can effectively avoid the defects of traditional static wind load calculation and meet the requirements of engineering design.