×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

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

Jobs

Minimum thickness for bolts in double shear

Minimum thickness for bolts in double shear

Minimum thickness for bolts in double shear

(OP)
Is there a minimum thickess that steel needs to be in order to use double shear values for checking the bolt strength. I am dealing with 9 gauge to 14 gauge cold formed steel. What about for triple shear?

RE: Minimum thickness for bolts in double shear

Draw your problem - metal plate(s), bolt holes, and bolt sizes - to scale. I think your answer will be more obvious.

RE: Minimum thickness for bolts in double shear

Well, if bolt bearing on the steel members is a problem then yes (it typically needs to be checked), there should be some minimum thickness required in order to achieve the full capacity of the bolt.

Triple shear.... in what scenario could you possible envision triple shear?

RE: Minimum thickness for bolts in double shear

Triplet woman??

RE: Minimum thickness for bolts in double shear

For double shear, bearing stress, edge distance and end distance must be checked for the plate.

Don't think I recall seeing triple shear. Where does it occur?

BA

RE: Minimum thickness for bolts in double shear

maybe "triple shear" means applying load on two legs, and reacting it on three (which is really nothing more than double shear),
or possibly applying load on one leg, and reacting it with four (again, pretty much double shear).

RE: Minimum thickness for bolts in double shear

Ok, I can see easily the double shear problem: also the pull-through problem with a hole too close to the edge of the sheet steel.

But how much credit can you take for the friction (the clamping force) between the sheets of steel being forced together by the bolts? Any at all, or none? Surely, for rivets, credit could be given sicne a rivet won't loosen under time and vibration: but for bolts it seems unclear.

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!


Resources