Monday, July 16, 2007

RE: Distribution Width for Concentrated Load on Concrete Wall

Thanks, Mark.

 

T. William (Bill) Allen, S.E.

ALLEN DESIGNS

Consulting Structural Engineers
 
V (949) 248-8588 F(949) 209-2509

-----Original Message-----
From: Mark Deardorff [mailto:mark@rstavares.com]
Sent: Monday, July 16, 2007 9:31 AM
To:
seaint@seaint.org
Subject: RE: Distribution Width for Concentrated Load on Concrete Wall

 

The code used to say, I am not sure if it still does, but for walls a concentrated load is spread over B+4T where B is the bearing width and T is the wall thickness. The recent tilt-up design methodology allows the load to be spread out further on a 2/1 spread on each side of the load.

 

Mark E. Deardorff, SE
R & S Tavares Associates, Inc
9815 Carroll Canyon Road
Suite 206
San Diego, CA 92131
Phone: 858-444-3344
Phone: 209-863-8928
Cell: 209-765-5592
mark@rstavares.com
www.rstavares.com

 

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From: Bill Allen [mailto:t.w.allen@cox.net]
Sent: Monday, July 16, 2007 9:21 AM
To: seaint@seaint.org
Subject: Distribution Width for Concentrated Load on Concrete Wall

 

I’m designing a C.I.P. concrete cantilevered retaining wall. I’m trying to find the distribution width for a concentrated load at the top of the wall. So far, I’m unsuccessful. In masonry, it’s called a “flush wall pilaster” and there is clear direction if the wall is masonry.

 

Is concrete the same as masonry in this regard?

 

T. William (Bill) Allen, S.E.

ALLEN DESIGNS

Consulting Structural Engineers
 
V (949) 248-8588 F(949) 209-2509