×
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

Concrete Buildings - Effective length factors for design of columns

Concrete Buildings - Effective length factors for design of columns

Concrete Buildings - Effective length factors for design of columns

(OP)
thread726-295343: Concrete Moment Frame Question
This is in reference to the original post by dcStrucEng(structural) dated March 26, 2011  --

Item # 1 - Shear wall as LFRS - Eff. Length factor for columns -
Sway classification of buildings does not depend on the type of LFRS. A story in a given structure is considered nonsway if the stability index for the story is <= 0.05, per ACI-318-05 section 10.11.4.2. In that case k shall be taken as 1.0 per section 10.12.1.

Item #2 - Moment Frame as LFRS - Eff. Length factor for columns- Same reasoning, as above, applies for k.Use k = 1.0 for non sway, and k using alignment charts for sway frames, irrespective of being or not being part of LFRS.  
   

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