Deformation joints of single-story building deformation joints include expansion joints, settlement joints and anti-seismic joints. If the length and width of the plant are too large, when the temperature changes, it will cause a large temperature stress inside the structure, which can seriously crack the wall, roof, etc., affecting the use. In order to reduce the temperature stress in the structure of the plant, an expansion joint can be provided to divide the plant structure into several temperature sections. The expansion joints should start from the top of the foundation and completely separate the superstructure members of the two temperature sections. And leave a gap of a certain width, so that the upper structure can be freely deformed in the horizontal direction when the temperature changes. The shape of the temperature section is simple to stress and should minimize the number of expansion joints. The length of the temperature section (the distance between the expansion joints) depends on the type of construction and temperature changes. The "ç ¼ Structure Design Code" specifies the maximum spacing of the expansion joints of reinforced concrete structures (Table 2-1). When the spacing of the expansion joints of the plant exceeds the specified value, the temperature stress should be checked. The specific practices of expansion joints can be found in the Handbook on Building Construction. In the general single-storey building, no settlement joints can be used. Only in special circumstances, the installation is considered. For example, the heights of the adjacent two parts of the plant are very different (such as l0 or more), the weight difference between the two inter-span cranes is very different, and the foundation bearing capacity or the lower There is a big difference in the soil quality of the horizontal layer, or the construction time of each part of the plant has a long time difference, and the degree of soil compression is different. The settlement joint shall separate the building from the roof to the foundation so that the entire building is not damaged when different settlements occur on both sides of the seam. The settlement joint can double as an expansion joint. Anti-seismic joints are one of the effective measures taken to alleviate earthquake disasters in the plant. When the flat and façade layout of the factory is complicated or the structural height or stiffness is very different, and the auxiliary buildings such as the living room and the substation furnace room are attached to the side of the factory, anti-vibration joints shall be provided to separate the adjacent parts. For the workshops in the earthquake zone, the expansion joints and settlement joints shall comply with the requirements of the anti-seismic joints. Screw and Barrel for injection machine Screw And Barrel For Injection Machine,Screw Barrel,Screw And Barrel,Barrel Screw Zhoushan Dinghai Jinsheng Bimetallic Plastic Machinery Factory (General Partners) , https://www.jinshenggalloy.com