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

Related Articles


Simplify combined loading case?

Simplify combined loading case?

Simplify combined loading case?

What's the best way to go about determining shear and tensile loads in two bolts of diameter D that fix the two segments together -- where I have known forces and moments acting in the X, Y and Z planes (all with different magnitudes). Is there a way to simplify this? Thanks

RE: Simplify combined loading case?

Resolve the moments into coupling forces then design the bolts for the resulting shear and tension forces using an interaction equation.

RE: Simplify combined loading case?

Thank you motorcity. So Mz will create a force couple in tension (Mz/a), Mx will create a force couple in shear (Mx/a), and My will result in a 0 force couple. Does this sound correct?

RE: Simplify combined loading case?

That is correct, except My may create flexure of your bolts depending on the arrangement and how My is applied

RE: Simplify combined loading case?

Right, I would be cautious about the effect My has on your bolts. Having a third bolt (or forth, for symmetry) off of the y-axis would greatly increase your resistance to that moment. You'll also need to consider the forces themselves in addition to the moments. I'd recommend using AISC J3-3(a) or (b) for calculating the combined loading case.

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