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Recent content by mla163

  1. mla163

    Shelf Angle Bolt Torque

    I am using a Heckmann 425 wedge insert and Heckmann 427 askew bolt to anchor a brick relief angle to a concrete slab. The question arose as to how much to torque the nut. The manufacturer has no specs. The bolt has an askew head, so it will tighten as vertical load is applied, but I am...
  2. mla163

    Bracing Wood Stud Walls with Gypsum Board Sheathing

    The lateral force required for bracing any column or stud is only something like 5% of its buckling load.
  3. mla163

    Multi Story Live load reduction

    Help me prove an old engineer wrong... It sounds like an easy question: IBC live load reduction is Lo * [0.25 + 15/sqrt(Ai)]. At the bottom story of a multi story building, is the reduced live load calculated using the influence areas of all floors summed up? = Lo * [0.25 + 15/sqrt(sigma...

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