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


Fin Plate with slotted holes

Fin Plate with slotted holes

Fin Plate with slotted holes

Hello to all of you.

I have a doubt here and I would like to know what you all think about this.

In a project that we are here developing in Portugal we made a decision that has led to a great discussion in my office.

We are connecting a steel I beam to a slotted holes Fin Plate (easier to align/construct on the site). The slotted holes are transverse ones, ie, the greatest dimension is perpendicular to the shear force in the beam web. The bolts are snug tightened, no pretension at all.

My question is what will happen at the ultimate limit state? Will the bolts develop only a vertical force, or will they develop two sets of forces x and y like a normal sized hole fin plate?

You may find a scheme attached.

Thanks to all of you,

“The most powerful force on the universe is compound interest.”

RE: Fin Plate with slotted holes

I am not an SE, but I fail to see how those fasteners could transfer a moment between the beam and plate, without any significant preload.

RE: Fin Plate with slotted holes

If the holes were not slotted in either direction, the bolt arrangement could resist moment. With the slotted holes, the bolts will slide horizontally and will not be able to resist the horizontal component unless they are made slip critical.

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