What are the requirements for conventional prefabricated steel structure building materials?

Steel structure is a structure mainly composed of steel materials and is one of the main types of building structures. The structure is mainly composed of steel beams, steel columns, steel trusses and other components made of section steel and steel plates. The components or parts are usually connected by welds, bolts or rivets. The construction speed is relatively fast, and the production is very simple and light weight. It is widely used in large-scale factories, venues, super high-rises and other fields.
The characteristics of steel are high strength, light weight, good overall rigidity, and strong deformability, so it is especially suitable for building large-span, super-high and super-heavy buildings; the material has good homogeneity and isotropy, and is an ideal elastomer , It is most in line with the basic assumptions of general engineering mechanics; the material has good plasticity and toughness, can be deformed, and can withstand dynamic loads well; the construction period is short; its industrialization degree is high, and it can be specialized production with a high degree of mechanization. High-strength steels should be studied for steel structures to greatly increase their yield point strength; in addition, new types of section steels, such as H-section steel, T-section steel, and profiled steel plates, must be rolled to meet the needs of large-span structures and super high-rise buildings.
In addition, there is no thermal bridge light steel structure system. The building itself is not energy-saving. This technology uses ingenious special connectors to solve the problem of cold and hot bridges in the building; the small truss structure allows cables and water pipes to pass through the wall, and the construction The decoration is convenient.
The steel structure will be subjected to various forms of action (load, uneven foundation settlement, temperature, etc.) during use, so the steel should have good mechanical properties (strength, plasticity, toughness) and processing properties (cold and hot working and welding) Performance) to ensure the safety and reliability of the structure. There are many types of steel, but only a few meet the requirements of steel structure, such as Q235, Q355, A36, S355, SS41 in carbon steel, 16Mn in low alloy steel, and 20 manganese vanadium steel (20MnV) for high-strength bolts, etc.

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