Need a book? Engineering books recommendations...

Return to index: [Subject] [Thread] [Date] [Author]

ACI Code and single layer steel in 12" wall

[Subject Prev][Subject Next][Thread Prev][Thread Next]
Chic Gilligan wrote:

  "Any advice on designing a 12" thick  retaining wall, 6' high and how
may conform with ACI Code (pretty sure they require two layers for 10"
thicker.)  Structurally it works, but don't know how to address code
of two layers.  I want only one layer of steel at centerline of wall.

Chic Gilligan, PE"

I'd be afraid of the usual placing tolerances leaving you with a 'd' of
3 inches instead of the 6 you're counting on.  In addition, you really
want some front-face steel for temperature and shrinkage.  And, finally,
it might be harder to place concrete down two 5 inch slots than down the
middle, leaving you with segregation.  Possible Code loopholes
notwithstanding, there's no way I'd design that wall with one layer of
steel.  Whose money are you saving, anyway?  Rebar is cheaper than

Mike Hemstad, P.E.
St. Paul, Minnesota

******* ****** ******* ******** ******* ******* ******* ***
*   Read list FAQ at:
*   This email was sent to you via Structural Engineers 
*   Association of Southern California (SEAOSC) server. To 
*   subscribe (no fee) or UnSubscribe, please go to:
*   Questions to seaint-ad(--nospam--at) Remember, any email you 
*   send to the list is public domain and may be re-posted 
*   without your permission. Make sure you visit our web 
*   site at: 
******* ****** ****** ****** ******* ****** ****** ********