There is no strict definition of light steel structure building, which can be distinguished by the section composition of the main stressed components. Therefore, the following structures can be called light steel structures:
(1) a structure made of cold-bent, thin-walled steel;
(2) a structure made of hot-rolled light-section steel;
(3) the structure composed of welding and high-frequency welding of light section steel;
(4) Structure made of round pipe, square pipe, rectangular pipe, etc.;
(5) structures made of components welded with thin steel plates;
(6) The structure made of the above various components.
While for heavy steel structure, we can consider and judget following datas:
1. crane lifting weight: more than or equal to 25 tons, can be considered as a heavy steel structure.
2. amount of steel per square meter: greater than or equal to 50 kg/sqm, can be considered as a heavy steel structure.
3. steel plate thickness of the main component: greater than or equal to 10mm, less light steel structure.
4. In addition, there are some other reference values: such as the cost per square meter, the maximum weight of the component, the maximum span, the structural form, the above can provide empirical data when judging whether the workshop is heavy steel or light steel.
Some we can certainly say is heavy steel: such as: petrochemical plant facilities, power plant building, long-span sports hall, exhibition center, high-rise or super high-rise steel structure.
The design life of steel structure building is 50 years at least, and up to 100 years. It is important to maintain the building regularly in order to ensure that it lasts as long as possible.
Why does steel last long time? Because steel is a very strong material. It can withstand a lot of force and pressure, which means that it is perfect for buildings.
