某大跨单层双曲抛物面网壳罩棚结构设计

Structural design of a long span single hyperbolic parabolic shell canopy

钢结构罩棚纵向共两跨,跨度为98m,104.4m;横向跨度为12.8~40.5m。屋盖采用单层双曲面网壳。网壳下设置空间桁架梁,支承在树形柱上。采用MIDASGen软件对结构在重力、风、地震、温度等各类荷载下作用下的受力性能、变形等进行了分析,总结了关于大跨设计的一些经验,供同类工程参考。

The steel structure canopy has two longitudinal spans, with a span of 98m and 104.4m.The transverse span is 12.8~40.5m. The roof adopts a single hyperboloic shel. The space truss beam is arranged under the shell, supported on the tree-shaped column.In this paper, MIDAS Gen software is used to analyze the mechanical properties and deformation of the structure under various loads such as gravity, wind, earthquake and temperature, and some experiences about long span design are summarized for reference of similar projects.