Why Steel Structure Buildings Are Earthquake Resistant?
Earthquakes significantly impact buildings, and steel structures show strong reliability and anti-seismic performance under earthquakes. The seismic resistance of steel structures can withstand earthquake forces better than concrete structures. The steel structure’s lightweight, high strength and good ductility make it an ideal choice for post-earthquake reconstruction, which can protect people’s lives and reduce property losses.
Why Steel Structure Buildings Are Earthquake Resistant
In the mode of earthquake propagation, the surface wave has a large wavelength and strong amplitude, which is the main factor causing strong damage to buildings. In areas where earthquakes occur frequently, concrete structures with poor tensile properties are prone to overall collapse under seismic wave cyclic loading. The strength of the steel structure is about eight times the strength of concrete, and the density is only 3.2 times that of concrete. In a building of the same scale, the steel structure is lighter and can withstand less earthquake energy. Coupled with the excellent flexibility of the steel structure, the energy brought by the seismic wave can be consumed through deformation, so the steel structure can not easily collapse even with large deformation.
The anti-seismic ability of steel structure buildings has been verified repeatedly, and it is also an essential choice for post-earthquake reconstruction in many places. Many prominent facilities such as schools, hospitals, and shopping malls rebuilt after earthquakes in my country have begun to adopt steel structure buildings. Life safety, but also reduce a lot of property damage!