INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Member Login




Remember Me
Forgot Password?
Join Us!

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!

Join Eng-Tips
*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.
Jobs from Indeed

Link To This Forum!

Partner Button
Add Stickiness To Your Site By Linking To This Professionally Managed Technical Forum.
Just copy and paste the
code below into your site.

Beam web opening

Beam web opening

(OP)
I am doing a stability and proportioning check of an opening in a beam web.  The opening width to opening depth ratio is greater than is recommended.  If I was to place vertical plate stiffeners at some spacing o.c. in between the opening width, and welding it to the top and bottom flange of the beam, will this resolve the instability/proportioning check of the beam?  Thanks.

RE: Beam web opening

vbridge,

It will help if you provide more information.
What is the beam shape?
What is the shape and dimensions of the opening?
Where is the opening centerline located, both in the depth of the beam and along the span?

RE: Beam web opening

(OP)
dlew,
The beam is a W10x22.
There are (5) 4.5 inches dia. openings. at 6 inches o.c..
The first opening starts 1 ft. from one end.
The openings are centered to the depth of the beam.
The load on the beam is 0.63k/ft. total.

RE: Beam web opening

vbridge,

I wouldn't cut ANY holes in a light 10" steel beam.

RE: Beam web opening

vbridge,

AISC's publication "Design Guide 2: Design of Steel and Composite Beams with Web Openings" shows what openings need reinforcement and how to reinforce the web.    It seems the beam you described would need reinforcement because the diameter of the holes, their spacing, and their location close to the support exceed the maximum/minimum specified.

The publication is available at the AISC website
http://www.aisc.org

RE: Beam web opening

(OP)
Dlew and CottageGuy,
Unfortunately, the existing beam has already beam cut.  So,
I detailed another beam underneath the existing beam to support the existing cut-out beam.  This will take care of the problem.  Thanks for your replies.

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