API 650 Supported Cone Roof
API 650 Supported Cone Roof
(OP)
I am trying to find API 650 requirements regarding arrangement of center columns, rafters and girders for given tank diameters. If API is silent on this, can somebody point a website where I can find one.





RE: API 650 Supported Cone Roof
RE: API 650 Supported Cone Roof
Richard Ay
COADE, Inc.
RE: API 650 Supported Cone Roof
Typically, a tank will have a single center column up to maybe 60-80' diameter, with multiple columns in circular layouts for sizes much over this, with details depending on fabricator and designer. What exactly are you needing?
RE: API 650 Supported Cone Roof
RE: API 650 Supported Cone Roof
The center column (and rafters themselves) do involve some extra maintenance liability, but also lower the initial cost. On a tank of that size, an umbrella would work pretty well.
You can use a columnless arrangement with rafters, or use trusses, but these don't really improve the maintenance aspect. Another option would be an aluminum dome roof.
RE: API 650 Supported Cone Roof
RE: API 650 Supported Cone Roof
RE: API 650 Supported Cone Roof