Structures are categorized into four groups ( A+, A, B, C ) based on their importance and the risk associated with their failure (e.g., nuclear plants vs. temporary sheds).
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(Regional Velocity): The maximum probable wind speed for a specific zone, typically measured as a 3-second gust at 10 meters height. FTcap F sub cap T Structures are categorized into four groups ( A+,
VD=FT⋅FA⋅VRcap V sub cap D equals cap F sub cap T center dot cap F sub cap A center dot cap V sub cap R VRcap V sub cap R FTcap F sub cap T VD=FT⋅FA⋅VRcap V sub
Buildings are also classified by their response to wind (Types 1 to 4), ranging from rigid structures to those highly sensitive to dynamic effects. Calculating Design Wind Speed ( VDcap V sub cap D )