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Re: R for knee brace

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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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David Topete, SE