The long structural characteristics of the members cause the members to be easily deformed and bent during the construction of the grid. In order to reduce the bending and deformation of the members during the construction process, the editor of Jiangsu Huahai Steel Structure will introduce the grid for everyone. Reasons for bar bending during construction.

There are several general reasons:

1. The length of some rods is wrong, such as incorrect labeling, installation error, manufacturing error, etc., it is necessary to re-measure the welding length of the curved peripheral rods to find out.
2. The diameter of the bolt ball is wrong. (The probability is very low)
3. The installation platform grid support fulcrum elevation error, resulting in uneven force, individual rods from compression to tension, resulting in bending!
4. If the bending is not large, in this case, the middle support will be removed after the support is stressed! Or use a jack to raise and level the design elevation rods before the grid support is welded. Generally, it can be restored!