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Discussion Forum

Will the angle iron work for my span

Cody0469 | Posted in General Discussion on October 14, 2018 02:34am

Will a 1/4 in think angle iron work on a 9ft opening with 3 or 4 course of hollow block above it thw pieces I have are 12ft long and 3x3x1/4 blocks are 8x8x16 no roof wieght bearing on wall

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  1. DanH | Oct 14, 2018 07:17pm | #1

    Uh, the thickness of the metal is less important than the dimensions of the ell.  You need to support 800-1000 pounds.  There are some calculators online, but I haven't worked my way through them.

  2. junkhound | Oct 15, 2018 04:52am | #2

    no way

    just too check.

    section mod = 0.56

    moment = = w*lsq/8 = 52k

    w= about 20# inch  =  12 in long block, 4 courses * 60 # block?

    l == 144

    52k needs to be less than  20ksi*0.56  = no

    now, the 20ksi is code allowable, yield say 70ksi 

    still likly to bend unless reall light weight block (< 10#/block)

    1. Cody0469 | Oct 15, 2018 09:09am | #3

      Also i was going to put one on each side 

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