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Re: Retaining wall footing resultant CBC

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Dear Mr. Brooks,
 
Could you please comment on the rationale behind the available input of "active soil pressure on the toe side"? 
 
I cannot come up with any physical justification for the use of that option. To the best of my knowledge, the RetainPro and Enercalc manuals are silent on the issue.  
 
Thanks,
 
V. Steve Gordin, SE
Irvine CA
 
 
----- Original Message -----
Sent: Thursday, April 09, 2009 09:49
Subject: RE: Retaining wall footing resultant CBC

This is an arguable issue, but I accept the design if outside middle third if soil pressure OK and stability >1,5.

Hugh

 

From: Jeff Smith [mailto:jeffsmith7(--nospam--at)comcast.net]
Sent: Thursday, April 09, 2009 9:44 AM
To: seaint(--nospam--at)seaint.org
Subject: Retaining wall footing resultant CBC

 

California Building Code section 1806A.1 requires the resultant must be in the middle half using 1605A.3 load combinations. I don't see this requirement in chapter 1806. For non essential facilities are there any requirements for the retaining wall resultant, or do we just need a 1.5 safety factor?

 

Jeff