某体校大跨度网架屋盖单独与整体分析对比

Analysis and Comparison of Single Span and a Large Span Space Truss Roof in Sports School

通常,对于上部为大跨度空间钢结构屋盖,下部为钢筋混凝土结构的体育场馆,采用上部和下部结构分别单独建模的办法进行计算与设计。此种方法与整体总装模型相比,既没有考虑到下部结构对屋盖的真实约束和传递给屋盖的水平力,也不能有效反应上部钢结构对整体结构的影响。文章以菏泽市体育运动学校综合训练馆为实例,对该工程的单独模型和整体总装模型进行了静力、地震作用下相关参数的分析与对比,总结了不同简化模型在计算结果上的差异,为此类工程的设计提供了参考。

Usually, for the long-span space steel structure roof and the reinforced concrete structure in the underpart, the individual modeling method is adopted for analysis and design.Compared with the overall assembly model, this method does not take into account the actual constraints of the lower structure on the roof and the horizontal force transmitted to the roof, and it can not effectively reflect the impact of the superstructure on the overall structure.This paper takes Heze Sports School as an example, a separate model and the whole assembly model of the project is analyzed and compared the related parameters of static and earthquake, summarizes the differences in calculation results of the simplified model, provides the reference for this kind of Engineering design.