4/11/2023 0 Comments Portal frame calculateIf a wall has only a few small openings, bracing it is easy. Often we conclude that a damaged home most likely would have stood up to the storm if the builder had applied code-required structural details such as wall bracing and anchor bolts. Occasionally we even see a house that has been severely damaged by straight-line winds from a thunderstorm-the kind of wind pressure that a modern wood-frame house should be able to handle. Often, APA teams see buildings that were damaged or destroyed by winds of less than the design wind speed specified in the building code (see “ A Texas Tornado: Lessons Learned,” May/17). As an engineer with APA - The Engineered Wood Association, one of my jobs is to help study the damage from extreme weather events such as tornadoes.
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