Need a book? Engineering books recommendations...

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

Re: Overhead anchors

[Subject Prev][Subject Next][Thread Prev][Thread Next]
We find using chemical anchors for overhead applications is less problematic
(delivery of resin) when installed at a sleight angle.
With the engineers approval of course.

Steven A.
Los Angeles


"Sherman, William" wrote:

> Engineers in our office have expressed concerns with using expansion anchors
> in overhead applications, such as hanger supports, due to the potential of
> long-term slippage under constant tension. I do not see any cautions noted
> on the use of expansion anchors in such applications in manufacturer's
> literature or in ICBO reports. Does anyone know if there is documentation of
> slippage of "friction-type" anchors in constant tension applications?
>
> We often prefer to use adhesive anchors in overhead applications, when
> drilled-in anchors are required - but concerns have also been raised with
> such anchors due to the potential softening of the adhesive in case of a
> fire. Also, overhead installation of adhesive anchors is more difficult.
> Does anyone have other recommendations for application of post-installed
> anchors in overhead applications?
>
> William C. Sherman, PE
> CDM, Denver, CO
> Phone: 303-298-1311
> Fax: 303-293-8236
> email: shermanwc(--nospam--at)cdm.com
>
> ******* ****** ******* ******** ******* ******* ******* ***
> *   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 
******* ****** ****** ****** ******* ****** ****** ********