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

Re: Anchoring roof diaphargm to concrete wall

[Subject Prev][Subject Next][Thread Prev][Thread Next]
I believe this results in an eccentic connection and would not be allowed
here in LA. A pair is recommended at each location, if HD is used.

Stan Scholl, P.E.
Laguna Beach, CA

On Tue, 14 Aug 2001 15:19:32 -0700 Michael Bryson <MBryson(--nospam--at)mhpse.com>
writes:
> I would probably use a Simpson HD anchor mounted on the side instead.
> 
> Incidentally, the 420plf is a factored load. 
> 
> Now since a one story concrete wall is attached at two points, the 
> ground
> and the roof, and you have different anchorage forces at each level, 
> can you
> design the roof anchorage for the average of the forces? The blue 
> book says
> you can design the wall panel for the average.
> 
> -----Original Message-----
> From: J. K. [mailto:structure_r_us(--nospam--at)yahoo.com]
> Sent: Tuesday, August 14, 2001 12:01 PM
> To: seaint(--nospam--at)seaint.org
> Subject: Anchoring roof diaphargm to concrete wall
> 
> 
> When sloping roof rafters sit on top of concrete
> walls, what kind of hardware would be suitable to tie
> the wall to the roof diaphragm? Per UBC the force is
> at least 420plf*4'=1680 lb when ties are at 4'-0" o.c.
> At floors, I am going to specify one of the Simpson
> LTT ties, which does not seem to be appropriate for
> the roof condition.
> 
> Thank you for your suggestion.
> 
> __________________________________________________
> Do You Yahoo!?
> Make international calls for as low as $.04/minute with Yahoo! 
> Messenger
> http://phonecard.yahoo.com/
> 
> * 
> *   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 
> 
> * 
> *   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 

* 
*   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