With the continuous development of spatial structures, the span of structures is becoming larger and the forms are becoming more diverse. Cast steel joints have been increasingly widely used in China. The large-span spatial pipe truss steel structure has the advantages of low steel content, unique and beautiful shape, and short construction period, and has been widely used in large landmark buildings such as exhibition centers, sports stadiums, airports, etc. in recent years. Due to its unique performance, cast steel joints have gradually become important nodes in large-span space pipe truss steel structures, and have been continuously promoted and applied in construction engineering at home and abroad. The large cast steel nodes produced by Yingfeng Steel Casting Company have been applied in multiple large airports, sports venues and other projects in China, providing large cast steel nodes for the steel structure projects of Xiaoshan International Airport and Changshu Sports Center Phase II Sports Center. Cast steel joints are generally used in critical areas with high loads and complex stress, and their reliability is directly related to the safety of the entire structure, which is very important.
There are three common structural forms of cast steel nodes, namely: tree shaped cast steel nodes, which are mainly used to replace nodes where the main pipe intersects with multiple branch pipes, and to replace intersecting welds with butt welds, reducing stress concentration during welding. Articulated cast steel joints are commonly used at the end connections of members such as supports, which can simplify the joint and have a beautiful appearance. The hybrid cast steel joint has the common characteristics of the two structural methods mentioned above. Compared with ordinary pipe joints and pipe plate joints, cast steel joints have the following characteristics:
1. Structural forms can be designed according to actual needs, with strong plasticity and beautiful appearance.
2. Cast steel nodes are generally solid, with only local voids at the interface, high bearing capacity, and strong deformation resistance.
3. The direct casting of steel pipes at the intersection of cast steel nodes makes the steel structure subjected to more reasonable stress and the overall structure more stable, overcoming the adverse effects of stress caused by a large amount of concentrated welding on the overall structure.
Changshu Hongqiao Cast Steel Co., Ltd. mainly produces various specifications of carbon steel, high, medium and low alloy steel, stainless steel, heat-resistant steel, high manganese steel, and high chromium cast iron. We provide high-quality customized steel castings for industries such as petroleum, chemical, metallurgical, mining machinery, coal mining machinery, wind power, nuclear power, and marine. We also offer customized steel castings for marine use, ABS marine engineering services, and cast steel for export overseas.