out of Plumbness Tank
out of Plumbness Tank
(OP)
Dear All:
We have a newly constructed tank which after inspection by third party found out of plumpness in two locations.
1. What is the best way to get the situation corrected.
2. In case owner accepts the tank with current situation, is there any design variable need to be verified or run the calculation for.
Best regards
We have a newly constructed tank which after inspection by third party found out of plumpness in two locations.
1. What is the best way to get the situation corrected.
2. In case owner accepts the tank with current situation, is there any design variable need to be verified or run the calculation for.
Best regards





RE: out of Plumbness Tank
You need to provide more info. for responses to your inquiries.
RE: out of Plumbness Tank
What are the tank dimensions?
Was the tank built to API-650?
Were the measurements taken before or after the hydrotest?Was the foundation originally built within the required tolerances?
How far is it out of tolerance?
Joe Tank
RE: out of Plumbness Tank
RE: out of Plumbness Tank
Chicopee and JoeTank
I'm sorry I was little away
The tank is 36.0 m Dia and 14 m H designd as per API 650 10th Edition ADD4
As plumbness is a regular thing to inspect during tank construction as per API 650 and has to be within 1/100 range. This tank was found out of plumbness when it was at the last ring erecton. 40 mm more than the allowable towards the tank center.
Foundation is ring wall beam. No problem with tank bottom to shell or foundation.
Tank is still not hydrotested.
Thanks for your cooperation
RE: out of Plumbness Tank
RE: out of Plumbness Tank
also where are in relation to each other the two out of plumbness sections? any manholes by those sections? any unusual features? how many courses in that tank? any detail may help.
RE: out of Plumbness Tank
Thanks Chicopee
Yes tank roof is welded. The two locations are opposite to each others
The tank is 7 courses each is 2.0 m
Client is ready to accept the deviation provided the design calculations are not affected. Is there any calculation need to be verified due to this non conformity
Thanks again for the help
RE: out of Plumbness Tank
Joe Tank
RE: out of Plumbness Tank
RE: out of Plumbness Tank
Joe
Thaks alot
This realy answers my question
A star for you
Chicopee
Thanks alot
Best Regards