Shell Plate Buckling
Shell Plate Buckling
(OP)
Dear Experts,
we are constructing a self supported cone roof tanks,there by mistakes we are getting 32mm buckling(inside)
so i want to know what is the waiveness allowed for the shell according to api650 as banding allowed 13mm.if anyone have idea how to fix this buckling please give us your idea,we already use a stiffener inside to fix this problem but we are getting same result.
Regards,
we are constructing a self supported cone roof tanks,there by mistakes we are getting 32mm buckling(inside)
so i want to know what is the waiveness allowed for the shell according to api650 as banding allowed 13mm.if anyone have idea how to fix this buckling please give us your idea,we already use a stiffener inside to fix this problem but we are getting same result.
Regards,





RE: Shell Plate Buckling
Can you send a picture of the roof and the defect that you are getting? a drawing would even be better
RE: Shell Plate Buckling
RE: Shell Plate Buckling
Please refer to ASTM A 20 or A 6. Depend on your material group. If your material under API 650 group I, II, III you may refer to A6.
Group IV, V, VI you may refer to A20.
API 650 under "Plumbness tolerance section" allow us to refer to those standards for waviness and flatness.
Based on plate thickness and width you could find allowable waviness and flatness in those 2 standard.
Give more detail about material specs, thickness and with on that plate in question.
Syah