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  1. BecomingCurmudgeon

    Old Engineer Detailing Question: mild rebar in composite concrete slab on metal deck

    That sounds like what my first boss used to do. He also put bars over the floor beams as well. It might have been (2) #4 on either side of the beam center line. I'm going to go thru a few boxes this weekend to see if I can find an old print. The project, that I saw without any mild reinf...
  2. BecomingCurmudgeon

    Old Engineer Detailing Question: mild rebar in composite concrete slab on metal deck

    I am trying to recall how things used to be detailed in the early 1990s. I am looking at a current project where the design engineer spec'd a 4" concrete slab on 2" composite floor deck (6" overall depth). He used Fibermesh and no mild reinf. The slab cracked in tension down the backs of the...
  3. BecomingCurmudgeon

    Forgot archaic bolt term. Need help.

    I think that I will stick with 'upset the threads' for now. It has a poetic aspect to it like a murder of crows.
  4. BecomingCurmudgeon

    Forgot archaic bolt term. Need help.

    You gave me a lead. The old word that we used to use was "to upset the threads" with a cold chisel. Thanks for jogging my memory.
  5. BecomingCurmudgeon

    Forgot archaic bolt term. Need help.

    I am having a senior moment and can't remember the term for purposefully damaging bolt threads after installation to prevent the nut from backing off. I had an old detail that used to say damage the threads with a cold chisel until a drafter found that there was a specific word for that...
  6. BecomingCurmudgeon

    Skip Sheathing Diaphragm Strength

    I did some further digging and I came up with a source and example problem. Look in ATC 7 _ Guidelines for the design of horizontal wood diaphragms, Appendix A.3 for the calc to find the diaphragm strength. It will be low.
  7. BecomingCurmudgeon

    Skip Sheathing Diaphragm Strength

    A closed post talked about calculating the diaphragm strength of the skip sheathing underneath a cedar shingle roof. One of the commenters mentioned that the AITC Timber Handbook had an example calculation of this. My version of the Handbook, the 5th, does not have any examples. Does anyone...
  8. BecomingCurmudgeon

    Where to find copies of BOCA codes?

    I often work on older buildings that were designed using the BOCA and UBC codes. I find it useful to know what the original design criteria was for snow drift, etc. We have bought a CD copy of the Historical UBC codes from 1967 to 1994. Does anyone know of something similar for the BOCA...

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