How to improve the quality of the space frame

The space frame processing is a spatial structure formed by connecting multiple rods through nodes in a certain space frame form. It can be used as the roof of buildings such as stadiums, cinemas, exhibition halls, waiting rooms, stadium observation deck awnings, petrol station canopy,hangars, two-way column space frame structure sites, etc. The space frame processing has the advantages of space stress, light weight, high rigidity, and good seismic performance. Its high-efficiency supporting performance, novel and beautiful methods and quick and convenient engineering construction are well received by everyone.

1. when the steel frame structure is set up, the setting of temporary support points must be carefully completed.Before setting, set the fulcrum and the high angle of the fulcrum. Not only should the false fulcrum be as consistent with the space frame force as possible, but also pay attention to the stability of the false fulcrum (fulcrum) foundation to prevent the fulcrum network from processing.
2. it is best to use a jack for the support of the temporary fulcrum, so it can be adjusted periodically. The adjustment of the temporary fulcrum is not a certain point adjustment, but takes into account the uniformity of the force around the mesh. This local adjustment can deform a single part or bend the mesh.
3. when removing temporary pivots, pay attention to the simultaneous reduction of some group pivots. When it is falling, don’t fall too much. Should use the phase-controlled proportional descent phase or synchronous descent method to remove the fulcrum below 100 mm.
4. when the tennis rack is installed and welded, the deformation of welding shrinkage should be considered, especially the whole space frame and the attached space frame. Since the welding points (sections) of the steel mesh are all located on the top of the plane space, it is easy to deform due to unidirectional heating. The general deformation law is that after welding, the edge support will gradually disappear. If the deformation is large, the original plan will be cancelled. If the original part does not consider the arch, it will cause the welding to produce a larger deflection value, which will affect the acceptance of quality requirements. Therefore, the deformation factors of unilateral heating should be considered in the construction site of electric welding welding ball.
5. After installing the space frame, be sure to pay attention to the bearing condition of the bearing. Some bearings can be welded by electric welding, and some bearings must be free ends. Some bearings must be limited. The backing plate, limit plate, etc. of the seat should be installed in the prescribed order and method.