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Re: Partial grout CMU shear wall

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"Check with the building official. If it's in the bay area, my experience has been 5% increase in demand load or 5% reduction in capacity triggers full compliance of those elements with current code."
 
I take it you are referring to seismic only?
 
 
Will
 


 
On 1/12/07, Gerard Madden, SE <gmse4603(--nospam--at)gmail.com> wrote:
Check with the building official. If it's in the bay area, my experience has been 5% increase in demand load or 5% reduction in capacity triggers full compliance of those elements with current code.

Change in occupancy would trigger full upgrade of the entire structure.


-g

On 1/12/07, David Topete <dtopete(--nospam--at)gfdseng.com > wrote:

G-

 

Would that be necessary even without a "Change of Use?"  The space is a supermarket, and they are acquiring adjacent space, and making penetrations in a common wall.  The openings are okay in the common concrete wall.  It's the storefront wall that is in question.  Modifying the storefront wall means I have to check for '01 CBC seismic.  But, if the partial grout wall works, I should be okay.  Am I interpreting that wrong?

The wall ties are not an issue.

Thanks.

 

David A. Topete, SE

Structural Engineer

 


From: Gerard Madden, SE [mailto: gmse4603(--nospam--at)gmail.com]
Sent: Friday, January 12, 2007 4:42 PM


To: seaint(--nospam--at)seaint.org
Subject: Re: Partial grout CMU shear wall

 

Zone 4? You'll need full grout and meet wall anchorage mins on the existing walls if you're increasing the load to these guys by 5% or more due to the addition...

-g

On 1/12/07, David Topete < dtopete(--nospam--at)gfdseng.com> wrote:

Yup.  "They" make California a tough lace to make a living, or a building.  Thanks for the info, Will.

 

David A. Topete, SE

Structural Engineer

 


From: Will Haynes [mailto: gtg740p(--nospam--at)gmail.com]
Sent: Friday, January 12, 2007 4:02 PM
To: seaint(--nospam--at)seaint.org
Subject: Re: Partial grout CMU shear wall

 

I use partial grouted walls walls all the time in my area. I heard California requires fully grouted?

 

Here is one basic reference I have used before:

 

The rest:

 

Will

 

On 1/12/07, David Topete < dtopete(--nospam--at)gfdseng.com> wrote:

I'm analyzing and designing for a supermarket that's enlarging, and has been added on over the years.  A lot like the Winchester Mystery House in San Jose.  Original construction is 6" concrete tilt-up.  Addition 1 was partial grout masonry, 30yrs ago.  Addition 2 was an extension on Add'n 1, and partial grout CMU as well.  Is there a reference out there for analysis and/or design of partial grout masonry?  This is hollow concrete block with bond beams at 48"o/c max., and vertical steel at 32" or 48"o/c.  Any help is much appreciated.

 

David A. Topete, SE

Structural Engineer

 

GFDS Engineers

543 Howard St., First Floor

San Francisco, CA 94105

v : (415) 512-1301 x21

f : (415) 512-1302

dtopete(--nospam--at)gfdseng.com

www.gfdseng.com

 

 




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-gm




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-gm