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RE: x brace question

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I agree.  Don't forget to check that the connection between two braces can take from 2 to 10 percent of the compression force.


Sasha Itsekson, PE
From: 	Glauco[:glauco(--nospam--at)]
Sent: 	Wednesday, March 11, 1998 6:13 AM
To: 	seaoc
Subject: 	Re: x brace question

At 08:43 AM 3/11/98 -0700, you wrote:
>For an ordinary x braced steel frame with tube steel braces
>can one assume the brace buckling length for in and out of plane
>to be 1/2 the actual brace length ?
>Tarek Mokhtar

For out-of-plane buckling use k=1.0 for kL (or a k less the 1.0 if the
extremeties are very rigid, e.g., k=0.8).

For in-plane use k=0.5, if one of the braces is tensioned and the other is
compressed. If both are compressed use k=1.0