Refers to the use of steel and hot bar, cold bending or welding profiles connected through the connection can withstand and transfer the structure of the load. The steel structure system has the advantages of light weight, factory manufacture, quick installation, short construction period, good seismic performance, quick investment recovery and less environmental pollution. Compared with the reinforced concrete structure, the steel structure system has the advantages of "high, Three aspects of the development of the unique advantages of the global scope, especially in developed countries and regions, steel structure in the field of construction projects have been reasonable and widely used. Steel industry is usually divided into light steel structure, high-rise steel structure, residential steel structure, space steel structure and bridge steel five sub-categories.
Steel structure in the construction of the application is extremely extensive, such as steel bridge, steel mills, steel gates, all kinds of large-scale pipeline containers, high-rise buildings and tower rail institutions.
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