A structure dominated by steel is one of the main types of building structures. Steel is characterized by high strength, light weight and high rigidity, so it is especially suitable for building large span and super high and super heavy buildings;
The homogeneity and isotropy of the material are good, and it is an ideal elastic body, which is in line with the basic assumptions of general engineering mechanics; the material has good plasticity and toughness, can have large deformation, can withstand dynamic load well; construction period is short; its industrialization High degree of specialization for high degree of mechanization;
It has high processing precision, high efficiency and good airtightness, so it can be used to build gas tanks, oil tanks and transformers. The disadvantage is poor fire resistance and corrosion resistance. It is mainly used for load-bearing skeletons of heavy-duty workshops, plant structures subjected to dynamic loads, plate and shell structures, towering TV towers and mast structures, long-span structures such as bridges and warehouses, high-rise buildings and super high-rise buildings.
In the future, steel structures should be studied for high-strength steels, which greatly increase the strength of the yield point. In addition, new types of steels, such as H-beams (also known as wide-flange steels) and T-shaped steels, and profiled steel plates, are required to accommodate large-span structures. And the need for super high-rise buildings.
The steel structure is divided into light steel and heavy steel. Judging that there is no uniform standard, many experienced designers or project managers are often unable to fully explain, and can be considered and judged with some data.
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