Prefab Steel Structure refers to the use of hot-rolled, cold-formed or welded profiles (I-beams, steel plates, etc.) to form load-bearing steel frames, which through connectors (bolts, high-strength bolts, etc.),
The advantage of Steel Structure
High strength, lightweight, excellent seismic performance, short construction period, a high degree of industrialization, and little environmental pollution.
In the process of manufacturing, construction, and use, steel structures have the advantages of energy-saving, environmental protection, and safety. They are in line with the principles of sustainable human development.
The feature :
Large span, lightweight, large carrying capacity, easy to install, usually used in bridges, industrial workshops, warehouses, and other buildings.
The metal structure does not use traditional concrete, which can reduce the consumption of cement, sand, and other resources, thereby significantly reducing the excavation of fossils.
It can reduce the weight by 40% and save about 30% of the foundation. The construction from the site to the main body can significantly reduce the water consumption during the installation, reduce the noise at the construction site, disturb the residents, wastewater discharge, and dust pollution; reduce sand mining and construction waste Emissions.
The CO2 emission of steel buildings for construction is about 480kg / m, which is more than 35% lower than that of 7474kg / m for traditional concrete. At the same time, when the building demolishes, the recyclable emissions of steel construction materials were reduced by more than 90%, and conventional concrete waste was reduced by about 60%.
The price of steel is 10% to 20% higher than reinforced concrete, steel structures, lower labor costs, and foundation costs, and consider to be the income brought by shortening construction time and short-term loans. The different prices for steel and concrete structures are not too high.
As far as space utilization is concerned, buildings over 20 stories often show the advantages of steel structures. For example, global financial centers use steel structures. If reinforced concrete use, the potential space utilization will be deficient. Therefore, considering the effective use of space, steel structures are more important than concrete, and the overall economic benefits of steel structures may be higher than concrete.
Due to the many advantages, metal structures have been widely using in industrial workshops, high-rise buildings, residential buildings, large public buildings, high-speed railways, thermal power plants, railway bridges, and offshore oil platforms.