×
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

Reduction of bolts allowable (design strees)

Reduction of bolts allowable (design strees)

Reduction of bolts allowable (design strees)

(OP)
Hello Engineers
I have a problem becasue a few time I saw in calculation of Flange connection
that allowable stress for Bolts is reduced on 50% sometime 60%.
I know that is the weakest part of this type connection.
I heard that this information about reduction of allowable stress I can find in ASME Codes
I search but I can not find nothing in this matter.
Can somebody help me and explain where I can find this information or better someone can me explain this issue.

Thanks a lot for help

RE: Reduction of bolts allowable (design strees)

Maverick82, "that allowable stress for Bolts is reduced on 50% sometime 60%." Please explain, as compared to what?

If possible please review Sec VIII, Div 1, Appendix S or ASME PCC-1 for explanation of the behavior of gasketed, bolted joints.

Regards,

Mike

The problem with sloppy work is that the supply FAR EXCEEDS the demand

RE: Reduction of bolts allowable (design strees)

(OP)
SnTMan
I'm calculated a allowable stress for the bolt material for two cases
1. ambient temperature
and of course
2.design parameters.

And when I have calculated fd and fa
I reduced it on a half becasue it is the weakness element of flange connection.
Regards.

Thanks for information I will try to find something in this codes

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


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