Grid assembly

Grid assembly is the process of combining rods, bolt balls and grid brackets. The grid assembly is an important part of the grid engineering installation process, and it is also a relatively technical part. Below, the editor of Huahai Steel Structure will briefly introduce the knowledge about grid assembly.

First of all, the assembly of the grid structure must follow the construction principles
1. Reasonable division, that is, the grid is reasonably divided into various units according to the actual situation, so that it can be economically assembled into the entire grid. There are several options for the method:
(1) A grid is directly assembled from a single rod and a single node.
(2) The small assembly unit is assembled into a grid.
(3) The small joint unit is assembled into the middle joint unit, and the total is assembled into a grid.
2. Strive to weld as much as possible in the factory or prefabricated site, and minimize the amount of high-altitude work, because this can make full use of the lifting equipment to turn the grid unit over and more welding.
3. As far as possible, the node should not be placed in high altitude alone, but connected with the rods for assembly, and only the rods are installed at high altitude.
Secondly, it is necessary to understand the working conditions of the grid assembly in advance
Before assembling the grid, assembling personnel should pay attention to the following aspects:
1. Before assembling the net frame, we must make corresponding preparations for the assembly site to ensure the cleanliness and flatness of the assembly site. On uneven sites, the construction staff also need to use mechanical equipment to suppress it. Consolidate
2. Construction safety of personnel;
3. After the steel is selected, we must conduct strict inspections on its quality. If we find components with unqualified steel materials, we must immediately stop using them;
4. In order to avoid deformation and displacement of the steel grid structure, we must reserve a certain amount of deformation when welding it.

Third. General unwritten regulations for grid assembly
1. In the process of grid installation and construction, the selection of steel is very important. The quality of steel must meet the requirements of engineering construction, and if the steel is installed, the steel does not have a factory certificate or the construction staff does not question the quality of the steel At the time, the relevant staff must carry out all-round testing of steel in accordance with relevant national regulations, and only after being certified can they be put into the construction of the project.
2. When the steel grid is made and installed, the construction personnel must also design their construction organization and construction plan in accordance with the relevant specifications for the quality inspection of my country's grid structure engineering, and carefully implement it during the installation process to ensure the grid The stability of the structure.
3. The welding of the steel grid structure is the core content of the steel grid structure installation project. Therefore, when welding it, we must set strict requirements on the welding site and welding method. For example, we try to choose a factory or The amount of work carried out in the prefab assembly plant and construction on-site. In the welding process, the requirements for welding personnel are also very strict. The welding personnel must be required to have professional knowledge and perform welding in accordance with a reasonable construction sequence.
4. When designing the installation method of the grid structure, we must not only install it according to the force condition of the grid structure and its own structural characteristics, but also meet the requirements of the engineering construction, so as to effectively guarantee the quality of the engineering construction And the progress of construction.