×
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

Cupon location - Yield strees eveluation

Cupon location - Yield strees eveluation

Cupon location - Yield strees eveluation

(OP)
We need to verify the Fy Yield Strength/Stress of an old steel roof beam, may I ask where do we typically and safely can take the coupon for the test? Flange? Web? Near support? Away of support?
How much we need to take?
Any code provisions?


And secondly what companies do the test for us? In U.S.

Thank you so much

RE: Cupon location - Yield strees eveluation

Take it from the areas of least stress. For a typical pin-pin beam with a UDL it would be flanges near supports or web at middle of beam.

RE: Cupon location - Yield strees eveluation

I agree with jayrod.

When I've done this with simple span beams you take the sample from the bottom flange of the end of the beam.

RE: Cupon location - Yield strees eveluation

would a hardness test be sufficient ?

another day in paradise, or is paradise one day closer ?

RE: Cupon location - Yield strees eveluation

(OP)
jayrod12 (Structural) and DETstru (Structural),

Thank you for your responses.

How much is enough for a coupon? Size?
What are the allowed methods to take the coupon? Torch cut?

Does ASTM has any words on that? AISC says anything?

Thanks

RE: Cupon location - Yield strees eveluation

ASTM A370 discusses testing methods.

RE: Cupon location - Yield strees eveluation

You'd need to remove it in such a way that you didn't alter the metallurgy- so torch-cutting too close to the test sample would be out.
Find your lab and ask them how big/small they need, what length, etc.

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