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本文根据大跨柔性屋盖矩形截面结构的特点，从空间计算模型出发建立这类结构横风向共振响应的计算方法，得到了考虑多振型贡献的位移响应和等效风振力计算式；文中还对有关参数的取值进行了讨论。工程算例的结果表明，对于空间振动特征较强、固有频率较密集的屋盖类结构，考虑多振型贡献与只考虑共振振型贡献相比，计算结果有很大差别。
Based on the characteristics of the rectangular cross-section structure of the long-span flexible roof, the calculation method of the transverse wind direction resonance response of such structures is established from the space calculation model, and the displacement response and equivalent wind-vibration force calculation formula considering the contribution of the multi- Also discussed the value of the parameters. The results of the engineering example show that for the roof structure with strong spatial vibration characteristics and dense natural frequencies, the results are quite different from those considering only the contribution of the resonance mode.