intermediate wind girder API 650
intermediate wind girder API 650
(OP)
to calculate if we need intermediate wind girder or not according to API650
5.9.7 Intermediate Wind Girders
5.9.7.1 to calculate the maximum height of the unstiffened shell
t = as ordered thickness, unless otherwise specified, of the top shell course (mm)
5.9.7.2 to calculate the height of the transformed shell
t= as ordered thickness
I think that we have to calculate according to corroded thickness as it is the worst case.
Please advise.
5.9.7 Intermediate Wind Girders
5.9.7.1 to calculate the maximum height of the unstiffened shell
t = as ordered thickness, unless otherwise specified, of the top shell course (mm)
5.9.7.2 to calculate the height of the transformed shell
t= as ordered thickness
I think that we have to calculate according to corroded thickness as it is the worst case.
Please advise.





RE: intermediate wind girder API 650
RE: intermediate wind girder API 650
what do you mean by nominal thickness?
i noticed unless other thing specified , but i think that we have to calculate in the worst case .
as i have to revise a document from a contractor and he calculated using uncorroded thickness. by this way we don't have to use intermediate wind girder.
but if we used corroded thickness, we have to use intermediate wind girder.
RE: intermediate wind girder API 650
RE: intermediate wind girder API 650
And it doesn't. Typically, the significant corrosion is confined to the vapor space; or the floor and first 1 to 2-feet of the shell. I have never seen, or even heard of, structurally significant corrosion occurring half-way up a shell, assuming the floor and vapor space were both sound.