Once the heavy pallet racks are installed and put into warehouse use, they will exist in the logistics system for a long time. In recent years, earthquakes have occurred frequently, so many users are concerned about the seismic performance of the pallet rack.
So, how much strength can the pallet rack withstand? How to improve the shock resistance of pallet racks? Based on JRACKING's long-term experience in the production and design of storage shelves, it can be summarized as follows:
1. In the world, different regions have different requirements for earthquake levels, and earthquake parameters can be easily queried.
2. According to the seismic requirements of various regions, the storage pallet racking (especially the automatic storage system) should consider seismic factors when selecting and designing, and determine the appropriate material specifications according to the design requirements, such as columns, beams, etc.; professional analysis methods determine the appropriate In order to save steel consumption, the gantry can be designed in an appropriate position; beam, horizontal rod system and vertical rod system to improve the seismic performance of the shelf.
3. For ordinary warehouses, pallet racks that are mainly used for single-row (width-to-height ratio less than 1:6) can add top gantry beams to improve shock resistance and anti-overturning performance.
4. How to handle the bottom of the shelf
When making the footing, the parts connected to the shelf foot are welded together with the reinforcing steel cage of the foundation in advance, so that the entire ground, the warehouse shelf and the steel structure of the building form a rigid body, which greatly improves the seismic resistance.
5. Welding of the shelf
Full penetration groove welding is adopted for the welding of some parts of warehouse shelves. The unique connection between the column and the beam, through this connection, the hinged form of the column and the beam can be changed to the rigid connection direction as much as possible; all the connecting bolts are friction-type high-strength bolts.
