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


I-beam repair

I-beam repair

I-beam repair

I work at a facility that has been in operation for over 50 years.  Some steel support in our Powerhouse has become corroded.  We are thinking of welding flat steel plates on the flanges of the I-beams instead of replacing the beams.  I have found some documentation on reinforcement of steel columns.  This addresses welding of cover plates to the flange that are at least no narrower than the width of the flange unless a sufficient space be left for the weld.  However, one beam has some holes in the web.  This beam does not appear to support any weight (bending) but may have tensional (axial) load on it.  We are looking to weld plates onto the web.  Is there a standard or code that addresses this issue?

RE: I-beam repair

I am just currently working on a parking ramp made out of steel beams encased in concrete.  The concrete has been removed and the steel exposed...with numerous rusted areas, holes in webs, etc.  

We are analyzing each and every beam against the required loading using the new, reduced cross sectional areas.  In some cases we are adding flange plates and web plates to increase the section of the beam.

We are cleaning all rust off of the beams (Commercial blast cleaning) and then welding the plates onto the beams - - considering fatigue issues at the welds, etc.

No special code covers this that I'm aware of other than the AISC steel spec. and good engineering practice.

If your members are currently under stress, be careful about welding across flanges as you could initiate a plastic failure.

RE: I-beam repair

Check AISC database.  I had an article written by David Ricker from the 1980's about reinforcing beams, etc.  I haven't been able to locate my copy to give you the exact date and issue.  

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