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Re: Large Bay 'X' Bracing

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I'd be surprised if you couldn't get the job done with  1-1/2" dia rod or


             Daryl Richardson                                              
   >                                                    To 
             05/29/2007 11:53                                           cc 
                                       Re: Large Bay 'X' Bracing           
             Please respond to                                             


        How about a 6x4 hollow structural?  Or how about fixing the ends?
With fixed ends the K in KL/r would be less than 1.00 which may help solve
your problem.


H. Daryl Richardson
 ----- Original Message -----
 From: Rich Lewis
 To: seaint(--nospam--at)
 Sent: Tuesday, May 29, 2007 5:00 PM
 Subject: Large Bay 'X' Bracing

 I have a warehouse condition of a ‘X’ braced bay that is 31 feet high and
 42 feet wide.  The diagonal length is over 51 feet.   I’m wondering if I
 should try to use the bracing as one large bay, or add a wind column in
 the middle and have two smaller bays.  The bracing is tension only for
 wind loads.  The load in the diagonal is about 21 kips.  What makes me
 most uneasy is the slenderness ratio of the brace.  If I try to limit the
 L/r ratio of the out of plane axis to 300 then I get extremely large
 angles.  If I ad a column I add almost 50% more bracing length, plus
 column and footing.

 Thanks for your insight.