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  1. M

    Unistrut in Torsion

    Hello, was reaching out to see if anyone had any resources on calculating the torsional stress on a unistrut channel, specifically a P1001 (using a P2542 post in reality, which comprises the P1001). I can’t find any technical literature on their website.
  2. M

    Anchor Block Sizing Factor?

    Hi all, first my background is structural. It’s the first time I have been requested to design an anchor block. I initially posted in the piping group and they advised me to post here instead due to the nature of the question. The piping is 48” dia. HDPE, all buried. Pipe rxn is 440 kips due to...
  3. M

    Anchor Block Sizing Factor?

    Hi all, first my background is structural. It’s the first time I have been requested to design an anchor block. The piping is 48” dia. HDPE, all buried. Pipe rxn is 440 kips due to Poisson’s effect? (Not sure what that is but I leave that to the piping folks). We have a geotech report and the...
  4. M

    Negative Cohesion Component Value for Active Pressure

    Hello, I am writing seeking some understanding. My background is structural so apologies if this is rudimentary. At the site under question, there are primarily cohesive soils. The geotech gave us the formulas and parameters to calculate the passive and active pressures. However, at the depth...
  5. M

    Load Combination for Overturning due to Live Load

    Hello everyone, I have an equipment pad with embedded posts that are subject to impact from vehicles. I have always multiplied the "vehicle barrier load" per ASCE 7 by the 1.6 live load factor, but the equipment pad is also now subject to overturning and sliding under this load. I am unsure of...
  6. M

    Calculating Sliding Resistance for Equipment Foundation Partially Supported by Soil

    Hello. I am seeking opinions here as I am second guessing myself. I have a piece of equipment that is being supported by the top slab of a precast vault. See snapshot for a very rudimentary sketch. My question is regarding calculating the sliding resistance since the top slab is supported...

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