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


Column is in tension

Column is in tension

Column is in tension

Hi all,
Please I need guidance and assistance. I recently modeled a two-storey reinforced concrete building using STAAD pro. For some of the columns, I got this message in my output file "Column is in tension for Load 2 - Design Ignored". Please what should I do to resolve this issue.


RE: Column is in tension

There is another forum for STAAD.pro here: http://www.eng-tips.com/threadminder.cfm?pid=750

According to the help, Section 3.7 Column Design, some tension is allowed, but the P-tens (maximum permissible tensile load on the column) would be very small for most concrete columns.
You probably want to make sure you have entered the gravity loads in the correct direction, verify if the tension force under load combinations is realistic, and then decide what to do from there.

RE: Column is in tension

Yes, check if the loads are defined properly but it is logically possible that a column will have axial tension under certain load conditions, especailly where there are large differences in span length or pattern loading or sway loading is involved.

Design it by hand for combined axial tension and bending based on the analysis results.

if you do not know how, you should not be using STAAD anyway!

RE: Column is in tension

Since your program isn't capable of designing a column under tension, you may use any other tool to perform the design externally. There are many programs for designing cross sections out there.


Analysis and Design of arbitrary cross sections
Reinforcement design to all major codes
Moment Curvature analysis


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!


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close