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  • Users: JeffLam
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  1. JeffLam

    A325 Fasteners, Torquing

    Hello Gents, Just a basic question, I am trying to connect modular platforms with 5/8" A325 bolts with A194H nuts. There will be a flat washer on the nut end and a direct tension indicator on the head end. Just wondering if it is ok to apply the torque in the nut end? I assume not because the...
  2. JeffLam

    Structure with no anchor bolts

    Hello, I work for a mechanical company that produces recycling equipment. A coworker of mine designed a support frame for a compressor and asked me if there was any code that allows him to build it without anchor bolts. He wants to know this because the client will be relocating this equipment...
  3. JeffLam

    Verifying, when R = 3 or less AISC SP doesn't apply?

    Hello, Just wanted to verify with someone, I designed a structure with R=3 for seismic base shear. Does that mean I do not need to follow AISC seismic provisions? I overheard from someone in this forum where they mentioned if R=3 or less AISC SP doesn't apply. Where is this noted specifically...
  4. JeffLam

    Preliminary Earthquake Loads for Universal Frames

    Hello, I'm designing a 1-story platform that can pretty much be located anywhere in the world. As a rule of thumb, I was informed to use seismic load of 40% times the Dead Weight of the structure. There will be cases where there is/isn't earthquake (50-50). Since there are no PE's in the...
  5. JeffLam

    Evaluating K value for Columns in Platforms out of Braced Plane

    Hello all, I have two questions I'd like some advice on. I hope with your expertise I can work through these columns! I am just a junior structural working in mechanical industry with no senior mentors. Scope of the story - platform design was outsourced by a FEA company and they made our...

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