Among the many space structures, the space frame structure is the fastest developing structure at present. It is a structure that the rod is arranged according to certain rules and connected by node, the shape can be flat or curved. It is widely used in China and abroad, mainly because it has the following series of advantages:
- The way of force transmission is simple and suitable for large span structure.
- The spatial stiffness is relatively large， the weight of the structure is relatively smalland it also has good seismic performance
- Easy construction and installation.Transportation, storage, loading and unloading, assembly are more convenient.
- The flexible layout and flat roof system of space frame is easier installation of ceiling, piping and equipment.
- The structure is light in weight and more cost-effective, compared with the normal steel structures, when the span <30 m, The amount of steel used can be reduced by 5%-10%, when the span >30 m, The amount of steel used can be reduced by 10%-20%.
