unbraced length
unbraced length
(OP)
In truss, the top chord, I have 1.2M sp of purlins, can I use that as my UNL=1.2 and Ly=1.2? or my Ly is the default length?
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS Come Join Us!Are you an
Engineering professional? Join Eng-Tips Forums!
*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail. Posting GuidelinesJobs |
|
RE: unbraced length
RE: unbraced length
Also, if you are going to use your purlins to brace the top chord, you will have to design the connection and the purlin itself to handle the axial force needed to provide bracing. Traditionally this has been 2% of the compression force. However, I think I have heard more recent studies which show that less force (say 1%) would also be acceptable. I always use 2%, since that is what I know.