The grid structure can be called a spherical grid frame and a bolt ball grid. It is a reasonable distribution and link of the grid member with the ball to form a spherical grid. The grid structure is more suitable for large-span space use, such as Industrial plants, large coal sheds, gymnasiums, etc.
Then, for the safety management of the grid structure, you need to implement the following quality control points!
1.The material must meet the design requirements.we provide steel structure house,you can know it.
2.Quality control of the assembly process.
3.The designed spherical grid must comply with the corresponding normative standards.
4.The reference axis and column top elevation must conform to the design and standards.
5,the grid installation should be the first control construction and installation program, we must have a practical grasp.
6,the ball joint's one-way axial tension and compression bearing capacity test and the base material and other strong requirements.
7.The bolt ball joint performs tensile strength test on the thread of the largest bolt hole of the finished ball.
8.The deflection value of the main control grid under its own weight and load, the average deflection value of the measuring point shall not exceed 1.15 times of the design value.
The above is a simple introduction to the structure of the grid and quality control, I hope to be helpful to everyone.
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