浙江音乐学院体育馆空间折板桁架结构设计

Structural design of spatial folded plate truss of Zhejiang Conservatory of Music gymnasium

浙江音乐学院体育馆下部采用钢筋混凝土框架-剪力墙结构,上部钢结构按建筑功能和校区整体风格采用空间折板桁架结构。该结构屋面和两侧墙面均为空间折板桁架,两侧墙面的桁架内侧竖杆有效地埋入下部混凝土墙柱中,呈沿东西方向的"手风琴"造型。为了保证分析结果的准确性,采用上下部结构整体模型,对空间折板桁架进行了静力、动力、特征值屈曲及非线性屈曲分析,并研究了墙面空间折板桁架与屋面空间折板桁架的协调工作性能。结果表明,空间折板桁架结构的工作性能虽不是很优越,但考虑到屋面空间折板桁架与墙面空间折板桁架的协同工作,此类结构具有较高的稳定性。

The concrete frame-shear wall structure is applied as substructure in Zhejiang Conservatory of Music gymnasium, while the spatial folded plate truss structure is used as the steel superstructure considering the architectural function and campus overall style. In this structure, the roof and both sides of the wall are constructed of the spatial folded plate trusses, the vertical bars in the inner sides of the wall are buried effectively in the concrete walls or columns of the substructure, just as an accordion floating in the air from east to west. In order to guarantee the accuracy of analytical results, based on the whole model with tbe substructure and superstructure, tbe static, dynamic, characteristic value buckling and non-linear buckling properties of the spatial folded plate truss were analyzed. Besides, the coordinated performance between the spatial folded plate truss of the ruof and the wall was also analyzed. The resuhs show that the spatial folded plate truss structure performs not very well, but in consideration of the courdinated performance between the spatial folded plate of the roof and the wall, this kind of spatial folded plate structure can also provide good stability perfurmance.