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  1. mateogrin

    Moment Envelope for LH Joists

    It is a 32LH06. It is listed in the 75 Year SJI, but it doesn't give any information about the joist's moment capacity. I have used the loading information back-calculated the moment, but I was hoping to find something a bit more accurate along the length of the joist. Unfortunately, there...
  2. mateogrin

    Moment Envelope for LH Joists

    I have an old LH Joist from the 1960s that I need to try and see if it matches some new loading conditions. I would like to check the moment envelope, but the 75 year joist manual doesn't seem to have any moment information for this kind of joist. Does anyone have any suggestions, or know if...
  3. mateogrin

    Cast-In-Place Slab Turned Into Diaphagm

    We've thought about this. The issue is that we still need to find a way to tie the slab to the joists and the beams, because right now, it is just resting on the joists.
  4. mateogrin

    Cast-In-Place Slab Turned Into Diaphagm

    I am working on a renovation of a building built in the 60s. It is 3 stories high, with a 3" concrete deck that has a very thin steel deck underneath. This is in the Boston area. I have a very limited structural plan set As far as I can tell, the steel deck is only there to form the...
  5. mateogrin

    Testing of concrete slab

    I have an existing building and no accurate structural drawings from the time it was built (mid 1960s). I am looking to find out the f'c of the slab, but the slab is only 3" thick, which means for very squat test samples. Is there a way to test the concrete to find the f'c with samples that...

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