The main points of gas station space frame structure design

The space frame of the gas station canopy is composed of steel pipes. It is used for sunshade and rain prevention on the petrol station canopy. It has a long service life and is the first choice for a fuel station. The space frame of the gas station has two types: welding ball and bolt ball. The engineering background of the gas station space frame structure: the gas station space frame is located at the rest station of the expressway. Due to a large number of passing vehicles, in order to meet the needs, the space frame coverage area is not less than 45m along the length and 15m along the width. The height of the lower chord of the space frame is not less than 6m from the ground, and the thickness of the space frame is about 1.2m. Provide four pillars for multi-point support for the space frame, and the spacing between the pillars is not less than 30m. The seismic fortification intensity of the area is 6 degrees.

Key points for the design of the gas station canopy space frame structure: the seismic fortification intensity of the area where the project is located is 6 degrees. According to the space frame structure design specification, seismic fortification may not be considered. Therefore, the seismic analysis may not be performed. Combined with the actual situation, consider the load value of the space frame structure. For example, the wind load carrier type coefficient of the special-shaped web shell can be determined by a wind tunnel test combined with numerical simulation. In the combination of working conditions, considering that the gravity load is beneficial to the structure, the load sub-factor can be adjusted to 1.0 or 0.9 for safety. If excessive stress occurs in the space frame structure design, it can be solved by increasing the thickness of the space frame or increasing the cross-section of the members.

Generally, when the steel structure gas station canopy construction drawing of the petrol station is produced, the program may die. Therefore, you need to save the file before the drawing, and then reopen it. If the multi-point support flat space frame adopts the constraint method that each point is X, Y, and Z three-way hinge, it will cause the column top to have a horizontal support method. At this time, the column top only has the vertical support reaction force, but The amount of steel used in the space frame itself will increase, and the joint gas station design of the column top may be adjusted. The specific restraint method should be determined by a comprehensive consideration of the structure scale, the bearing capacity of the column, the load condition, and other factors.