Installation method of grid structure

The general grid structure has the characteristics of large span and wide area. Therefore, it is necessary to consider various factors when installing. Each grid engineering installation company also shows its own magic, and the installation method also shows its ability. But in general, there are only a few mainstream installation methods. The editor of Huahai Steel Structure will introduce to you.

1、Integral jacking method: It is suitable for various space grid structures with fewer fulcrums. The structure is lifted to the design elevation and in place after the overall assembly on the ground.

2. High-altitude bulk method: It is suitable for various types of space grid structures assembled by full supports, especially for non-welded connection structures such as bolt connections and pin shaft connections. According to the structural characteristics, the cantilever assembly method with fewer supports can be selected: internal expansion method (cantilever assembly from the side support to the center), external expansion method (cantilever assembly from the center to the side support).

3. Integral hoisting method: suitable for small and medium-sized space grid structures, which can be translated or rotated at high altitude during hoisting.

4. Split or block installation method: It is suitable for the space grid structure where the rigidity and force condition of the structure after the division changes little. The size of the strips or blocks should be determined according to the lifting capacity of the lifting equipment.

5. Sliding method: suitable for various spatial grid structures that can be set with parallel slide rails, especially suitable for construction that must be crossed (the lower part of the roof structure to be installed is not allowed to set up brackets or walking cranes) or the site is narrow, and lifting transportation Inconvenience and so on. When the space grid structure is a large column network or a plane is narrow and long, the sliding frame method can be used for construction.

6. Overall lifting method: It is suitable for all kinds of space grid structures, and the structure is raised to the design elevation and in place after the ground is assembled as a whole.

7. Folding and unfolding integral lifting method is suitable for cylindrical reticulated shell structure. Fold and assemble on the ground or a working platform close to the ground, and then lift the folded mechanism to the design elevation with lifting equipment, and finally make up the previously removed rods at high altitude to turn the mechanism into a structure.