Comparison of Welded and Bolted Balls in Space Structures

space frame structure 
The welding ball structure uses hollow balls (material Q235 ordinary steel) and welded pipes for welding at the construction site, which is greatly affected by temperature and wind speed. The cutting and welding equipment are basically manual, which results in large errors in the cutting, positioning, and welding processes. Low, and the welds are prone to "false penetration" and "slag inclusion" quality defects. There is stress and deformation before and after welding of steel, which poses a safety hazard. Continuous release after use, the angle control between various rods is not precise, it is easy to twist the rods, destroy the balance force transmission, and increase the deflection of the steel structure. It cannot meet the engineering requirements of special-shaped curves and ultra-long spans, and it is difficult to guarantee the quality, which has great limitations.
The bolt ball structure uses solid balls (material 45 # high-strength steel) and high-strength bolts (material 40Cr) to be tightly spliced. Its components are completed in the production workshop by automatic welding and CNC machine tools. It has a high degree of standardization and is easy to guarantee processing accuracy and quality. The angle between the screw holes on the bolt ball is accurate, and the rod has a built-in 10.9S high-strength bolt. It has tensile and compression resistance, stable and balanced transmission force, excellent quality processing, and convenient construction site installation. This node is widely used.LF is a professional manufacturer and engineering company for space frame and steel structure projects.
LF Business scopes: designing, fabrication, installation of coal storage and related equipments for power plant, cement warehouse, stadium, exhibition hall, railway station roofing system, gas station roof cover, large span of workshop etc.Website:www.cnxzlf.com

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Shape of steel space frame structure

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Types of steel space frame structure roof

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Space frame dome structure

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