Seismic areas are not all on the West Coast anymore
Seismic design should be considered when installing a pallet rack system now in many U.S. locations. Especially on the West Coast, it can now apply to cities like Oklahoma City, Memphis, Topeka and Charleston.
When we talk about Seismic areas, it means these areas require increased safety measures for any persons in proximity to racking by reducing the risk of its collapse should an earthquake occur. Rack that meets these standards are a result of a series of engineering calculations.
Section 2.6, “Earthquake Loads,” of RMI’s ANSI MH16.1-2012: Specification for the Design, Testing and Utilization of Industrial Steel Storage Racks includes a complete listing of the calculations to be performed by a qualified rack design engineer. Considerations include:
- Geographic region, denoted by what is referred to by building codes as Seismic Design Categories (SDCs), which range from A to F.
- Specific site location contours and subsequent design parameters, which can be determined via the United States Geological Survey (USGS) website.
- Soil classification
- Supporting concrete slab thickness
NAWL Pallet Rack has been engineered to meet seismic safety requirements using a thicker and larger 5×8 and 8×8 base plate for anchoring each column to the floor. Furthermore, our manufacturer, Huade Storage Equipment Manufacturing Co., received an R-Mark certification from MHI. Our racking has completed the seismic calculations from Seismic Inc. and if you are a member, you can login to specify our rack for your project.
If you want to know more about seismic design and rack safety? RMI includes a section on Seismicity in its list of Frequently Asked Questions.