【摘要】 河源大剧场采用空间网架体系,最大跨度为74m,结构厚度2m,当中部不设支座时,网架位移无法满足规范要求。考虑到剧场的舞台系统布置,可巧妙地利用舞台周边混凝土柱为网架结构提供竖向支撑,这可有效减少网架变形,节省用钢量。本文通过对该网架结构模型进行线性静力分析、多种支座布置下用钢量比选,分析得出用钢量与支座布置的规律,可为优化设计和施工提供有益的参考。更多还原

【Abstract】 Heyuan Theater is composed by space truss system,and the maximum span is 74 m long,with the 2m structure thickness.When intermediate bearing is not set,truss structure has been unable to satisfy the displacement requirements of specification. Considering the theater stage system arrangement,concrete columns surrounding the stage can be skillfully used to provide vertical support for truss structure,this can effectively reduce the deformation and cut down steel consumption. In this paper,the grid structure model of linear static analysis,a variety of steel bearing arrangement than election analysis reveals that the amount of steel with the bearing arrangement of the law. The result provide valuable reference to design and construction.更多还原