vertical load check of bare piping on beams
vertical load check of bare piping on beams
(OP)
good day to everybody
anybody can suggest me where can i find verifications for bare piping resting directly on beams or rod bar welded along centerline of top flange beam to concentrate load.
the verification should tell me if he vertical load is not high for bare pipe or it is needed reinforcing pad to increase local thickness.
thank you very much
socrate
anybody can suggest me where can i find verifications for bare piping resting directly on beams or rod bar welded along centerline of top flange beam to concentrate load.
the verification should tell me if he vertical load is not high for bare pipe or it is needed reinforcing pad to increase local thickness.
thank you very much
socrate





RE: vertical load check of bare piping on beams
Resting pipe on a rod bar or re-bar is always a bad idea.
RE: vertical load check of bare piping on beams
anyway there is some standard or code where can i find the verification i am talking about?
why is it bad idea pipe resting on bar?
thank you socrate
RE: vertical load check of bare piping on beams
A pipe wall resting on a small diameter rod is an outdated support idea based on a misconception. In truth, there is a theorectically infinite stress at the contact point, which is clearly poor engineering.
RE: vertical load check of bare piping on beams
RE: vertical load check of bare piping on beams
RE: vertical load check of bare piping on beams
The smaller piping I have see is just resting on the I-beam support.
Regards
StoneCold
RE: vertical load check of bare piping on beams
Ensure that your piping will not fall down from the rod bar... so you can drill 2 holes in the plates to install a U-bolt.
Finally, ensure that your rod bars can take your piping loads
RE: vertical load check of bare piping on beams
In the offshore oil & gas company that I work for, we will not allow metal-to-metal contact at all between the pipe and the support and always have an elastomeric pad between the two. I-rods seems a good solution as they minimise the crevice area and do not have -metal-to-metal contact.
RE: vertical load check of bare piping on beams
RE: vertical load check of bare piping on beams
Basically plastic rubbing bars, but built to take the load.
My motto: Learn something new every day
Also: There's usually a good reason why everyone does it that way
RE: vertical load check of bare piping on beams
but i am concerned about the pipe... not the support. i what to answer to question:
given a bare pipe load... do i need reinforcing plate there? i want to know the formulas!
RE: vertical load check of bare piping on beams
C2it, DSB123 and Nipra03 have all answered this point which is that there are no formulas for this.
"Historical engineering" shows that if you keep within normally recognised span lengths for the different sized pipe then you will be ok. If the pipe moves a lot, both for distance and frequency of movements then you might need a plate on the pipe to account for loss of metal as it scrapes back and forward, but otherwise no.
As noted above, this type of support is now not normally used and a shoe arrangement (bolted or welded)is now much more common.
My motto: Learn something new every day
Also: There's usually a good reason why everyone does it that way
RE: vertical load check of bare piping on beams
RE: vertical load check of bare piping on beams
Regards
RE: vertical load check of bare piping on beams
There is a lot more to piping than formulas...listen up to what you are being advised