Dapeng Town Industrial Park, Tongshan District, Xuzhou City, Jiangsu Province, China
The gas station grid steel structure is a common spatial layout with good coordination ability. Due to the special design and application nature of gas stations and other facilities, the design needs to be more rigorous. The requirements for the gas station grid steel structure design should include the following aspects:
Reliability refers to the reliability index value of the grid structure, which is a quantitative analysis of the reliability of the structure. It reflects the safety and stability of the structure under different conditions.
The reliability of the structure is affected by many factors, such as changes in load and raw material characteristics, imperfections in model calculations, and differences in production and installation quality. These factors are usually random. Therefore, the research and measurement methods of reliability should be quantitatively analyzed using probability theory.
The gas station canopy grid belongs to the general load grid, which usually adopts the middle support, multiple support points and small span. The steel pipe is generally selected as Q235 welded steel pipe. There are two options for nodes:
Welded steel ball: Q235 steel plate is used, and non-destructive testing is required after stamping and welding.
Bolt ball: The ball blank forged from 45 steel is required to undergo destructive tensile test after taper.
The selection of these two nodes should be determined according to customer requirements or design requirements, and the diameter and thickness of the ball should be calculated and determined by SF2000 software.
Experienced engineers will select reasonable cable arrangement methods for gas station grid design based on the relative position of spatial rods, boundary conditions, requirements of building decoration and functional positioning. When the design type is a grid structure, in order to make the stress distribution uniform, the cables should be arranged at positions with large deflection and tensile stress. This can improve the rationality of the force of the rods and reduce the amount of steel used, thereby achieving good economic and technical effects.
