>
> It is not the policy; the plan checker is insisting that it is common
> practice to use a 1.5 F.O.S. Every design professional, including
> himself, he was talked to uses 1.5 when using loads at ASD level. The
> shear walls range from 1.15-1.2, it would be extremely costly to get a
> 1.5 F.O.S. Can anyone offer advice on convincing him that he is wrong? :)
>
>
>
> On Jan 31, 2008 10:16 AM, Steve Gordin <sgordin@sgeconsulting.com
> <mailto:sgordin@sgeconsulting.com>> wrote:
>
> There is none. For seismic, everything about 1.0 is OK. I
> usually use not less than 1.2.
> It may be a city policy, then you are out of luck.
>
> V. Steve Gordin, SE
> Irvine CA
>
> ----- Original Message -----
> *From:* Matthew <mailto:sandman21@gmail.com>
> *To:* seaint@seaint.org <mailto:seaint@seaint.org>
> *Sent:* Thursday, January 31, 2008 10:08
> *Subject:* Gross overturning
>
> I have a plan check comment stating that a 1.5 F.O.S. is
> required for gross overturning on any building shear wall from
> seismic loads at ASD level. The project is under the 97 UBC;
> I have been unable to find any code section that requires a
> 1.5 F.O.S, the only requirement is for earth retaining walls.
> Could anyone please comment on where I can find the section?
> Or how they have resolved a similar situation?
>
> Thank you
>
>
Look at the load combinations in Section 1612. Depending whether wind
or seismic controls, the FOS could be as low as 1.0 (D+W) or (.9D+E/1.4).
******* ****** ******* ******** ******* ******* ******* ***
* 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@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
******* ****** ****** ****** ******* ****** ****** ********