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Thread: Masonry Foundation Supports
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11-27-2007, 02:18 PM #1
ROBERT J MOUNTAIN Guest
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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11-27-2007, 04:52 PM #2
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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.
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.
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11-27-2007, 05:35 PM #3
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Re: Masonry Foundation Supports
Dbl block piers 80" high, over 80" should be filled with concrete & rebar.
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09-11-2009, 12:58 PM #4
Valerie Gillespie Guest 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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