×
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

K-value for column in Dual System Structure

K-value for column in Dual System Structure

K-value for column in Dual System Structure

(OP)
What is K-value for the columns in Dual Sistem Structure with Special Moment Frames and Eccentrically (or Concentrically) Braced Frames (System 4 Table 1617.6 p. 367 IBC-2000) ?
Is Sidesway Inhibited or Uninhibited for columns in such structures?
Thanks.

RE: K-value for column in Dual System Structure

I would think it depends on which column in the structure is being considered....they do vary within any given structure.

I have always understood that sway is considered IF the lateral stability of the frame DEPENDS on the bending resistance of the column fixed to the beam.

So a column in a moment frame provides the key lateral resistance to the frame and thus, sway occurs in the column and you must consider that as the condition.

For a column in a frame that does not provide frame lateral restraint through bending, then the column is "going along for the ride" and is considered braced by external systems and thus is in a non-sway condition.

In a dual system you still have to look at the contribution of the column to the lateral stability of the structure.  

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