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大跨度结构的动力性能分析是对这一结构形式进行分析的重点和难点。计算模型的选取是对大跨度结构动力分析中的关键 ,它决定动力分析的精度是否符合要求[1 ] 。本文根据索膜结构的受力特点 ,从等强的角度提出了选取结构动力分析的简化模型的一条思路 ,并分析了结构动力性能分析简化模型选取时应考虑的因素
The analysis of the dynamic performance of long-span structures is the key and difficult point to analyze this structure. The selection of calculation model is the key to the dynamic analysis of long-span structure, which determines whether the accuracy of dynamic analysis meets the requirements [1]. Based on the force characteristics of cable membrane structure, this paper presents a way of selecting a simplified model of structural dynamic analysis from the perspective of isotropic strength, and analyzes the factors that should be considered in the selection of simplified model of structural dynamic performance analysis