Advantages of steel structure
The steel structure material has high strength and lightweight.
The weight can be determined by the ratio of density to the strength of steel. Under the same load and restraint conditions, the self-weight of the steel structure is much smaller than that of reinforced concrete. Compare the steel roof truss and the reinforced concrete roof truss with the same span and load. The former is about 2/3 to 3/4 lighter than the latter, and if lighter thin-walled steel is used, it is lighter, 9/10 lighter than the latter. The lightweight of the structure can not only reduce transportation costs but also reduce lifting costs.
The steel structure has a high degree of industrial production, and the construction period is relatively short.
The steel structure is produced in a factory and can be manufactured mechanized. The steel structure adopts the construction method of factory processing and site installation. It not only shortens the construction period but also reduces the project cost, thereby improving economic benefits.
The seismic performance of the steel structure is better.
In the earthquake, the lightest damage is the steel structure. It is due to the relatively lightweight of the steel structure and the somewhat flexible structure system. When an earthquake occurs, concrete buildings are prone to cracking and crushing collapse. Steel structure building is different because its ductility can reduce the destructive power of earthquakes to the building. The flexible frame composed of steel beams and steel columns is sufficient to resist earthquakes of over 8 degrees, so it is widely used in seismic fortification areas, incredibly strong earthquake areas.
The steel structure meets the requirements of the sustainable development of green buildings.
The steel structure can make rational use of resources and energy, has less pollution to the environment, and is a green building.
A large amount of dust and noise will be generated on the concrete construction site. The steel structure does not need to use sand, gravel, cement, and other bulk materials can avoid the problems of dust, waste accumulation, and noise pollution, which effectively reduce construction waste.
The material of the steel structure is steel, which can be fully recycled, in line with the sustainable development requirements. In buildings of the same scale, the emissions of harmful gases produced during steel structure construction are only about 65% of that of concrete structures. The construction process has low energy consumption and superior thermal insulation performance, which has obvious advantages in reducing residential carbon emissions.