What are the advantages of steel structure in high-rise buildings?

1, the tensile strength, compressive strength and shear strength of steel are relatively high, and the structural section of steel structure members is small and light. Generally speaking, the dead weight of high-rise reinforced concrete buildings is about 1.5-2.0T/m2, and the dead weight of steel structures in high-rise buildings is mostly below 1T/m2, and even some office buildings are only 0.5-0.6T/m2. Light weight of the structure can reduce the transportation and hoisting costs, the load of the foundation can also be reduced accordingly, and the foundation cost can be reduced, especially in areas with poor geological conditions, and its characteristics are more prominent. 2. Steel structures have good ductility and good seismic performance, especially in high-intensity earthquake areas. The ductility of reinforced concrete structure is ensured by the low stress of the structure, while the ductility of steel structure makes some members plastic. In the high-intensity earthquake area, if the weight of high-rise buildings with fortification requirements is reduced by half, it is equivalent to the reduction of seismic fortification 1 degree. Taking the anti-seismic cracking degree of Beijing 8 as an example, the self-weight of steel structure of medium-height building can be reduced by 1/3, the earthquake action can be reduced by 30-40%, and the load per unit area on foundation can be reduced by more than 25%.

Steel structure building, a new building system, has the industrial boundaries of real estate, construction and metallurgy. It is a new industrial system and is generally optimistic about steel structure building system in the industry. Compared with traditional concrete buildings, steel plates or sections are used to replace reinforced concrete in steel structures, which has higher strength and better seismic performance. Because the components can be manufactured in the factory and installed on site, the construction period is greatly shortened. Because steel can be reused, it can greatly reduce construction waste and is more environmentally friendly, so it is widely used in industrial buildings and civil buildings all over the world.