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RE: Void Forms under Grade Beams

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Gerard:

 

That is pretty strange…the void form is intended to negate

Any uplift forces due to expansive soils…

 

That’s the way I understand it, anyway.

 

 

 

 

David L. Fisher  SE  PE

Senior Principal

Fisher + Partners Structural Engineers inc

372 West Ontario

Chicago 60610        

 

312.573.1701

312.573.1726 fax

312.622.0409 mobile

www.fpse.com        

 

David L. Fisher  SE  PE

Director

Head of Design and Construction

Cape Cod Grand Cayman Holdings Ltd

75 Fort Street

Georgetown Grand Cayman BWI

mobile 312.622.0409

www.ccgch.com

 

 

 

 

 

 

 

 

 

 

 


From: Gerard Madden, SE [mailto:gmadden(--nospam--at)maddengine.com]
Sent: Tuesday, May 24, 2005 1:34 PM
To: seaint(--nospam--at)seaint.org
Subject: Void Forms under Grade Beams

 

I have a soils engineer requiring me to design grade beams for a pier and grade beam residential foundation for an uplift of 1500 psf. He is also requiring void forms underneath the grade beams…. I thought this was an either or type of thing, not both. It’s a 1 story house and this will easily govern the design.

 

Any input appreciated.

 

-gm

SSF, CA