Shear wall structure refers to the structure in which the main load-bearing structures in vertical and horizontal directions are structural walls. When the wall is in a proper position in the building, it can form a structural system that can effectively resist the horizontal effect and divide the space at the same time. The height of the structural wall is generally equal to the height of the whole house, from the foundation to the roof, up to tens of meters or 100 meters; Its width depends on the layout of the building plane, usually a few meters to more than ten meters. Relatively speaking, its thickness is very thin, generally only 200~300mm, and the minimum can reach 160 mm, so the lateral stiffness of the structural wall in its wall plane is very large, but its stiffness out of the wall plane is very small, which can generally be ignored. Therefore, most of the horizontal action or horizontal shear force in buildings is usually distributed on the structural wall, which is also the origin of the name of shear wall. In fact, the more accurate name of "shear wall" should be "structural wall".