Need a book? Engineering books recommendations...

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

Re: Broken F1554 anchor rods

[Subject Prev][Subject Next][Thread Prev][Thread Next]
Drew,

        Why not put the top threaded rod in the coupler and do a pull test?
It may prove to be satisfactory.

Regards,

H. Daryl Richardson

Drew Morris wrote:

> I have a project going where one of the 1" diameter F1554-55 anchor rods
> has been broken off.  It is at a fixed base moment frame footing.  The
> contractor got anxious and chipped out the concrete, cut off the
> deformed top of the rod and cut threads onto the new top of the rod.  He
> added a coupler. I asked him for information on the coupler and received
> a standard test report from the factory in Taiwan.  It states that the
> material is made from A563 and passed the proof load of 90 ksi.  It is
> my understanding that couplers are required to handle 125% of the load
> that the threaded  rod can handle.  Is A563 the proper material for the
> coupler?
> There is some data on the geometry of the coupler but noting on the
> cross sectional area.  Any suggestions?  I'm leaning to having him
> replace the anchor rod and coupler and put a new anchor rod in.
>
> ******* ****** ******* ******** ******* ******* ******* ***
> *   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 
******* ****** ****** ****** ******* ****** ****** ********