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  1. #1
    ROBERT J MOUNTAIN's Avatar
    ROBERT J MOUNTAIN Guest

    Default Masonry Foundation Supports

    I was recently asked about the maximum height for a 16in.x16in. masonry support? It is not a normal part of my inspections but I was told I could find the information in the 2006 IRC. Can anyone help with this code?

    Secondly, I wanted to know if anyone is doing Risk Assessment? I was presented with the offer recently here in Atlanta?

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  2. #2
    Join Date
    Aug 2007
    Location
    Memphis TN.
    Posts
    4,311

    Default Re: Masonry Foundation Supports

    Robert,

    I don't have IRC 2006 Maybe this will help.

    You'll need to match material and exposure in the attachment.

    Attached Files Attached Files
    It Might have Choked Artie But it ain't gone'a choke Stymie! Our Gang " The Pooch " (1932)
    Billy J. Stephens HI Service Memphis TN.

  3. #3

    Default Re: Masonry Foundation Supports

    Dbl block piers 80" high, over 80" should be filled with concrete & rebar.


  4. #4
    Valerie Gillespie's Avatar
    Valerie Gillespie Guest

    Default Re: Masonry Foundation Supports

    There is a big difference in capacity between masonry walls and masonry columns. You shouldn't use wall guidelines; the wall capacities assume there is distribution along the length of the wall; isolated columns can not distribute or share load like a wall.

    The 80" height is based on the definition of a "pier" as being 5 times the length of the pier (16" x 5= 80"). However, it really depends on the load applied. If the pier is in a residence, typically light framed timber construction, a 16" x 16" x 6'-8" pier is most likely capable of carrying residential loads.

    If its a foundation for any other use, the structural engineer should refer to ACI 530 part 3.2 for unreinforced masonry allowable compression loads.


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