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Re: R for knee brace

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So how long does it take to drink 5 gals
I use 2.0 for timber but that is for a trellis structure.  For solid roofs I use steel columns.  In your area I may use wood post because you are in low seismic.
Joe Venuti
Johnson & Nielsen Associates
Palm Springs, CA
In a message dated 10/23/2009 10:17:50 P.M. Pacific Daylight Time, jrgrill(--nospam--at) writes:

Typing now from a keyboard instead of my “Crackberry”.  I have done some cantilevered timber columns in the past, but I was never very crazy about them due to shrinkage.  I tried to limit them to small miscellaneous structures, cupola sort of things.  I do believe, (and I realize that the original question was regarding steel) the ASCE gives an R=1.5 for a “timber frame”.  Personally, I think that is a bit punitive, but see the politics of “R” thread a couple of weeks ago.  That’s why I ask the question.  Hoping for a bit of discussion on timber frames.  Sorry for throwing the timber thing into a steel discussion.  One more of my home made brews and I wouldn’t have even checked my email.


Yes I have listened to all the beer discussions in the past.  I gave up buying except for the cheap store bought while I’m mowing the lawn stuff.  My wife bought me a home brewing kit last winter.  5 gallons at a time.  Da?! Good stuff.


Joe Grill


From: leenlee_front [mailto:leenlee_front(--nospam--at)]
Sent: Friday, October 23, 2009 8:09 PM
To: seaint(--nospam--at)
Subject: Re: R for knee brace


Because there are existing ramp and SOG it is impossible to have can cantilevered column system. So it should be pinned connection at bottom of steel columns.


In my opinion it will be O.K. to use OMRF at both directions because OMRF does not required pre-qualified connections. What do you think about this? 










From: "jrgrill(--nospam--at)" <jrgrill(--nospam--at)>
To: seaint(--nospam--at)
Sent: Fri, October 23, 2009 7:23:02 PM
Subject: Re: R for knee brace

And if they were to be timber?
Joe grill

Sent from my Verizon Wireless BlackBerry

From: Jnapd(--nospam--at)

Date: Fri, 23 Oct 2009 21:54:42 EDT

To: <seaint(--nospam--at)>

Subject: Re: R for knee brace




I would probably treat it like a Cantilevered Column  and use 2.5


Joe Venuti
Johnson & Nielsen Associates
Palm Springs, CA


In a message dated 10/23/2009 5:11:25 P.M. Pacific Daylight Time, d.topete73(--nospam--at) writes:

 the columns are steel.

On Fri, Oct 23, 2009 at 4:44 PM, <Jnapd(--nospam--at)> wrote:

Are columns steel or wood ??


Joe Venuti
Johnson & Nielsen Associates
Palm Springs, CA



In a message dated 10/23/2009 2:40:45 P.M. Pacific Daylight Time, leenlee_front(--nospam--at) writes:

Hello, all

I have small canopy project, 40' x 16' x 10' high having 4 steel columns at corner.  OMRF(Ordinary Moment Resisting Frame) with R = 3.5 used at trasverse direction and I will have L shape knee braces at longitudinal direction. But I have no idea what R value is suitable for this knee bracing.
Please give me some idea.
Thanks in advance.


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