×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Cold formed steel column reinforcing

Cold formed steel column reinforcing

Cold formed steel column reinforcing

(OP)
Need help with reinforcing a cold formed steel brace.  Brace is inadequate due to buckling and want to add cover plates or other cold formed sections to increase the moment of inertia.  I can come up with the needed moment of inertia but don't know how to determine the length of the reinforcing.  I know the reinforcing doesn't have to be the full length of the member.  Can anyone help with deteriming this length?  Also, does anyone have an literature, or direct me to literature, that explains the design procedure.  "The Shape of the Strongest Column", by J.B. Keller is an article that I have been looking for.

 

RE: Cold formed steel column reinforcing

Variable section members have significant literature, at least pertaining to the determination of K-Factors. You can download old code NBE EA-95 that has something about.

http://tocasa.iespana.es/NBE_EA+95.zip

Another way is to model the column by component segments and give it a try with some program, always with care since thin wall in this case. You may find convenient to model explicitly surmised out-of-straightness imperfections.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources