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RE: Redundancy factor 1.0 for single story wood framed?

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Yes, Bill

We do care.  Thank you for sharing your insight.

Sharon Robertson Bonds, PE
Salerno/Livingston Architects
363 Fifth Avenue, Third Floor
San Diego, California  92101
(619) 234-7471

	-----Original Message-----
	From:	Bill Allen, S.E. [SMTP:Bill(--nospam--at)]
	Sent:	Thursday, November 09, 2000 4:42 PM
	To:	seaint(--nospam--at)
	Subject:	RE: Redundancy factor 1.0 for single story wood

	4/lw? Where did THAT come from? Where have I been?

	According to Dick Phillips, alledgedly the author of "10/lw", it was
	intended to be a penalty for short shear walls, but an "aid" to long
	walls. Doesn't anyone care WHY things are in the Code anymore? The
intent of
	"10/lw" was to remove the penalty on those long shear walls by
	them to be a collection of shear walls with a length of 10 ft each.

	Based on this, the concept that "10/lw" is NOT a penalty for short
	walls should apply to more structures than merely one story wood
	buildings. IMO, the code should read, wherever referencing "10/lw"

	Even though the IBC 2000 is not being adopted, don't plan check
	have a copy on their shelves and/or don't they follow comments on
this list
	and position statements presented by SEAOC? Anyone going to ask why
	feature was adopted into the IBC 2000?

	If not, maybe SEAOC can prepare a position paper like they have done
on a
	couple of other issues. These have been very helpful considering
there are
	no off year corrections to the 1997 UBC.


	Bill Allen, S.E. (CA #2607)

	-----Original Message-----
	From: Lynn [mailto:lhoward(--nospam--at)]
	Sent: Thursday, November 09, 2000 3:17 PM
	To: seaint(--nospam--at)
	Subject: Re: Redundancy factor 1.0 for single story wood framed?

	Thanks, but I think Ben answered my question for me.
	It was that the 10/lw was changed to 4/lw for wood

	Paul Feather wrote:
	> Lynn,
	> The only proposal I am aware of is that 10/lw should not exceed
1.0 for
	> shear walls, I can look up the paper later if you would like.
	> I am not aware of any limitation on Rho
	> Paul Feather
	> ----- Original Message -----
	> From: "Lynn" <lhoward(--nospam--at)>
	> To: <seaint(--nospam--at)>
	> Sent: Thursday, November 09, 2000 10:55 AM
	> Subject: Redundancy factor 1.0 for single story wood framed?
	> > I thought I had read on this list that there was an
	> > official proposal or some kind of document put out by
	> > SEAOC that was recommending a change in the code to
	> > allow the use of Rho to be 1.0 for one story wood
	> > framed structures (or was it just residential
	> > structures?).
	> >
	> > I have reviewed the archives of the "list", and have
	> > found there has been a lot of discussion on the matter,
	> > but I could not find the document I was looking for.
	> >
	> > Is there any kind of a document circulating that is
	> > proposing that Rho can be 1.0 for all one and two story
	> > light wood framed structures?
	> >
	> > Thanks
	> >
	> > Lynn
	> >
	> >