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Re: Shear and Tied Veneer Walls

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I don't know about code issues, but I would question how the two materials
would behave together if they have a different modulus of elasticity. As
try to deform together, they probably will behave differently due to the
in the stress-strain curves. A corrolary (sp?) would be stucco on one side
of a wall
and plywood on the other. The URM and veneer would be closer than
but I don't believe you would get the strength of the sum of the

My $0.02.

Bill Allen

> From: Dennis S. Wish PE <wish(--nospam--at)>
> To: 'SEAOC Listservice' <seaoc(--nospam--at)>
> Subject: URM: Shear and Tied Veneer Walls
> Date: Wednesday, July 30, 1997 9:09 AM
> It has been my understanding for the last ten years, that if the 
> veneer is tied properly to a URM wall (i.e., 9" URM with 4" 
> veneer) that the full thickness of the wall can be used in the 
> pier analysis.
> Has there been any changes in the last few years that removes 
> the veneer from the in-plane pier analysis. It is my opinion 
> that the ties and mortar binding the veneer to the wall make it 
> act with the wall in shear in an equal capacity as the header 
> courses with a low collar joint would perform.
> I'd appreciate your comments ASAP since I have to respond to a 
> proposal for another firm that wants to disregard the veneer and 
> Gunnite the building.
> One more thing, if the veneer is tied, is the H/t ratio 
> maintained by the thickness of the wall including the veneer. 
> Again, this is how we had been doing it for the last ten years 
> of so, but if there has been a change previously, I would like 
> to know.
> Thanks
> Dennis Wish PE