某体育馆多层大跨结构设计

Structural design of a multi-storey and large-span Gymnasium

某体育馆采用现浇混凝土框架结构,大跨度部分采用预应力混凝土梁。在扩初设计阶段,详细比较了屋盖结构体系的2种方案。对于该项目来说,预应力结构比钢结构网架更具有经济合理性和使用的便捷性。然后,通过专业的设计软件对该项目的大跨预应力梁进行结构设计,并探讨了预应力次弯矩对整体结构的影响。最后,对该结构的二层、三层大跨度楼面进行了舒适度分析。

The Main Gymnasium adopts cast-in-place concrete frame structure, and the large-span part adopts pre-stressed concrete beams.In the initial design stage, two schemes of roof structure system are compared in detail.For this project, the pre-stressed structure is more economical, reasonable and convenient to use than the steel grid structure.Then, through professional design software, the structural design of the long-span pre-stressed beam of this project is carried out, and the effect of pre-stressed secondary bending moment on the overall structure is discussed.Finally, the comfort degree of the two-storey and three-storey long-span floor of the structure is analyzed.