Need a book? Engineering books recommendations...

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

Re: Twisting of rebar

[Subject Prev][Subject Next][Thread Prev][Thread Next]
PCA Notes on ACI 318 has bending tables and additional information
generated from references that are listed in ACI 318 section 7.3.


On Thu, Nov 6, 2008 at 10:25 AM, Dickey, David
<David.Dickey(--nospam--at)masonandhanger.com> wrote:
> Is there an ACI document that specifies the amount that a bar can be
> twisted?
>
> Hooked bars extend out of the top of a load-bearing 12" concrete wall.
> The concrete roof slab has not been placed yet.  The hooks are intended
> to be perpendicular to the wall, but have been placed parallel.  I
> recommended that the bars be heated to 1350-1400F, straightened, and
> then bent in the correct direction.  The contractor would prefer to
> grasp the bar at the point where it protrudes from the concrete and
> twist the bar 90 degrees.  The bar extends approx. 12" above the level
> of the concrete, so 90 degrees of twisting in a #5 bar would be
> occurring over a 12" length.
>
> I am entertaining this proposal because another case of heating and
> bending bars on this job (without my approval) turned out to be a
> disaster.
>
> Thanks,
>
> David Dickey, P.E.
> Lexington, KY
>
> ******* ****** ******* ******** ******* ******* ******* ***
> *   Read list FAQ at: http://www.seaint.org/list_FAQ.asp
> *
> *   This email was sent to you via Structural Engineers
> *   Association of Southern California (SEAOSC) server. To
> *   subscribe (no fee) or UnSubscribe, please go to:
> *
> *   http://www.seaint.org/sealist1.asp
> *
> *   Questions to seaint-ad(--nospam--at)seaint.org. 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: http://www.seaint.org
> ******* ****** ****** ****** ******* ****** ****** ********
>

******* ****** ******* ******** ******* ******* ******* ***
*   Read list FAQ at: http://www.seaint.org/list_FAQ.asp
* 
*   This email was sent to you via Structural Engineers 
*   Association of Southern California (SEAOSC) server. To 
*   subscribe (no fee) or UnSubscribe, please go to:
*
*   http://www.seaint.org/sealist1.asp
*
*   Questions to seaint-ad(--nospam--at)seaint.org. 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: http://www.seaint.org 
******* ****** ****** ****** ******* ****** ****** ********