Pipe Rack design
Pipe Rack design
(OP)
Dear Friends,
I have two questions:
1- Which load cases should be use for designing piperack structures and foundations?
Which one:
SUS(W+P1)?
HYD?
OCC(W+P1+T1+U or WIN)?
2- Is W+P1+T1+U an OPE load case or OCC load case?
Best Regards,
B.Smith
I have two questions:
1- Which load cases should be use for designing piperack structures and foundations?
Which one:
SUS(W+P1)?
HYD?
OCC(W+P1+T1+U or WIN)?
2- Is W+P1+T1+U an OPE load case or OCC load case?
Best Regards,
B.Smith





RE: Pipe Rack design
Are all the lines stressed (and thus loads known ?)
Is there any chance of all the lines being hydrotested simultaneosly ?
In B31.3 and similar terms ....
W+P1+T1+U is one of an infinite range of possible OPERATING cases which render LOADS but not usually stresses.
W+P1+U would be a typical OCCasional loadcase in Caesar II terms, and would render OCCasional stresses for Code comparison.
RE: Pipe Rack design
There are 6 lines on the piperack: 20", 16", 16", 12", 10", 6"
Small bore lines are utility and large bore lines are H2S gas. and all lines modeled in the CAESAR.
But I don't know exactly how they will hydro-test. What is the difference?
RE: Pipe Rack design
Beware of individual hydrotest loads from large gas filled lines.
It's very unlikely to run several hydrotests together, but I have seen it done for a main pipe rack, in order to minimise site disruption due to safety zones. Then the test weight was far in excess of any operating case and required temporary supports.