As more and more high-rise buildings are built, how about the seismic effect of steel structures? According to the seismic grade from low to high, it can be divided into several situations. The civil structure of rural residential buildings is the worst, with 90% collapsed in Wenchuan earthquake. The second is masonry structure, with 6 to 10 stories. Because the brick is big and brittle, the third is the bottom frame structure, as the bottom frame structure, commercial network, a large, more than two-story brick-concrete structure, because these two materials have different hardness, light head and foot, the potential collapse after the earthquake.
With the advent of natural disasters in many building structures in China, many people begin to ask what kind of buildings have better seismic performance? At present, most of the high-rise buildings with more than 30 stories are frame shear wall structures. In Wenchuan earthquake, the building structure is not very good and the performance is very good. It is reported that the shear wall is a reinforced concrete structure with high stiffness and strong horizontal seismic force. So don't look at the height of the building, look at the key of the building structure. Strong earthquake is the frame structure, more than 10 stories of public buildings; better is the frame shear wall structure, better is the pure shear wall structure.