There are also special wind regions to account for inland areas that have higher wind loads. Coastal regions have much higher wind speeds due to high winds generated by hurricanes design wind loads on the east coast range from 100 mph to 190 mph. The basic wind speed for the majority of the United States is 90 miles per hour (mph). The highest wind occurrence in that period will then become the established design wind load, with an annual probability of the occurrence of “0.02″.
This criterion is based upon the recommendations in The American Society of Civil Engineers Standard 7 (ASCE 7).īasic wind speed data is calculated by evaluating the statistical analysis of the region’s climate over a period of 50 years. Exposure Category (specific to the location of the structure).
Wind loads are calculated using two factors: