Crack on Steel Beam???
Crack on Steel Beam???
(OP)
Hi!
We have been using W24x131 to lift precast concrete products in the yard.
Recently we found a line (crack?) only underside surface of bottom flange.
But, when we checked the top surface of bottom flange, we could not find any crack or line.
What is this line (crack)?
What caused this one?
Could it be related with fatigue failure? (This has been used more than 20 years.)
Thanks for your time!



We have been using W24x131 to lift precast concrete products in the yard.
Recently we found a line (crack?) only underside surface of bottom flange.
But, when we checked the top surface of bottom flange, we could not find any crack or line.
What is this line (crack)?
What caused this one?
Could it be related with fatigue failure? (This has been used more than 20 years.)
Thanks for your time!









RE: Crack on Steel Beam???
Either way, scrap the beam and get a new beam fabricated. Make sure it's designed per ASME BTH-1-2017.
Professional Engineer (ME, NH, MA) Structural Engineer (IL)
American Concrete Industries
https://www.facebook.com/AmericanConcrete/
RE: Crack on Steel Beam???
Professional Engineer (ME, NH, MA) Structural Engineer (IL)
American Concrete Industries
https://www.facebook.com/AmericanConcrete/
RE: Crack on Steel Beam???
This happened only at one end...
RE: Crack on Steel Beam???
RE: Crack on Steel Beam???
Professional Engineer (ME, NH, MA) Structural Engineer (IL)
American Concrete Industries
https://www.facebook.com/AmericanConcrete/
RE: Crack on Steel Beam???
RE: Crack on Steel Beam???
grind n a bit & check depth?
RE: Crack on Steel Beam???
Thanks for replies!
Rolling anomaly...
So, is this looking like s problem in production process?
Is this relatively not rare in the steel industry?
RE: Crack on Steel Beam???
My understanding is a rolling issue isn't that rare but it is rare for it to leave the yard with a major defect. I imagine this defect was embedded in the flange to web joint and thus wasn't picked up visually and a defect detection system likely would have difficulty finding it as well.
Professional Engineer (ME, NH, MA) Structural Engineer (IL)
American Concrete Industries
https://www.facebook.com/AmericanConcrete/