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Recent content by RoadTech

  1. RoadTech

    Looking for formula for Unbraced Length, Lu

    In ASD, when Lb exceeds Lc, then Fb <= 0.66Fy. The formulas for such case are a function "L" and "rt". You could set Fb = 0.6Fy and solve each condition of l/rt for what you refer to as "Lu".
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