大跨度钢桁架穹顶组合网壳设计施工关键技术

Key Technology During the Design and Construction of Large-span Compound Spherical Lattice Shell of Steel Truss and Dome

钢桁架穹顶组合网壳作为一种新型的网壳结构,采用主骨架和次结构的结构分布形式,受力合理,造型优美,具备了很强的空间跨越能力。但由于此种结构形式复杂,且可能伴随着预应力拉索的大量应用,导致其施工过程较为复杂,施工精度控制与技术要求高,施工难度大。以绍兴金沙·东方山水国际商务休闲中心为例,介绍了大跨度钢桁架穹顶组合网壳的设计施工关键技术。

As a new-type latticed shell structure, the steel truss and dome compound spherical lattice shell adopts distribution form of the main backbone structure and sub-structure. It has sufficient space span capability with reasonable mechanical behavior and appealing design. But due to its complicated structure, and maybe along with a lot of application of prestressed cable, relatively complicated construction process is caused, as well as high construction precision control and technical requirements and huge construction difficulties. Taking Shaoxing Jinsha Orient Sunseed International Business and Leisure Center as an example, this article introduces the key technologies during the design and construction of large-span compound spherical lattice shell of steel truss and dome.