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 Member Selection Tables

Column Member Selection Tables

Column Member Selection Tables

I am currently studying for the structural section of the PE exam and am wanting to verify that the column member selection tables take into account all potential modes of failure: flexural buckling, local buckling, torsional buckling and flexural torsional buckling. My textbooks don't seem to explicitly state whether they do or do not always provide accurate information.

As a follow up question, it seems like the column member selection tables are missing a lot of different sections (For instance, the deepest W section is W14). Why is this?

Thanks in advance.

RE: Column Member Selection Tables

The column tables are based on failure modes resulting from axial load only and do not account for flexure (lateral load on column) or local failures in web or flanges.

The reason that the tables do not go beyond W14 is that sections larger than W14 are not commonly used in building design. That's not to say that you can't use a larger column, you just need to calculate the capacity yourself. Take a look at the capacity of the larger W14's....they are quite high.

RE: Column Member Selection Tables

So assuming you apply an axial load with no eccentricity to one of the shapes with low torsional resistance (WT or LL for example), will the column member selection tables account for flexural buckling and torsional/flexural torsional buckling? It seems like they would but the code doesn't seem to specifically say that they do. I'm wanting to make sure that if I get a design problem using one of these shapes the capacity reported in the member selection table has account for torsional/FTB as well as Flexural Buckling.

Does that make sense?


RE: Column Member Selection Tables

Yes they do.

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! Already a Member? Login


eBook - Rethink Your PLM
A lot has changed since the 90s. You don't surf the Web using dial-up anymore, so why are you still using a legacy PLM solution that's blocking your ability to innovate? To develop and launch products today, you need a flexible, cloud-based PLM, not a solution that's stuck in the past. Download Now
White Paper - Using Virtualization for IVI and AUTOSAR Consolidation on an ECU
Current approaches used to tackle the complexities of a vehicle’s electrical and electronics (E/E) architecture are both cost prohibitive and lacking in performance. Utilizing virtualization in automotive software architecture provides a better approach. This can be achieved by encapsulating different heterogeneous automotive platforms inside virtual machines running on the same hardware. Download Now

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