Dismantling Floating Roof for a Storage Tank

Question

Dismantling Floating Roof for a Storage Tank

EngrK (Petroleum)

(OP)

4 May 12 05:25

Hi all,
Please, what are the critical contents required in a method statement for dismantling floating roof for a storage tank?

Thanks

MiketheEngineer (Structural) · Answer 1 · 2012-05-04 10:51:04

They are usually pretty light - in the 3-7 psf range - check this out.

Biggest problem is they truly do float - so dismantling can be tricky. We usually put light weight shoring (think scaffolding) under the whole thing and then dismantle.

JedClampett (Structural) · Answer 2 · 2012-05-04 11:21:40

Make sure that the instructions require demolition, removal and disposal.
Otherwise, you might end up with a pile of contaminated metal in you parking lot.

MiketheEngineer (Structural) · Answer 3 · 2012-05-04 14:17:37

And BTW - do it symmetrically - so loads don't become too unbalanced.

msquared48 (Structural) · Answer 4 · 2012-05-04 15:35:53

Drain the tank first...

Mike McCann
MMC Engineering
http://mmcengineering.tripod.com

EngrK (Petroleum) · Answer 5 · 2012-05-07 03:17:37

Thanks for the comments.
When cranes are used to lift cut sections, are there special consideration? e.g would it be necessary to have a lifting plan and run any calculation based on the load chart for the crane

MiketheEngineer (Structural) · Answer 6 · 2012-05-07 11:08:02

Once you have determined the weights of the sections - YES - make sure the crane is capable.

And do it in smaller sections and symmetrically!!

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Dismantling Floating Roof for a Storage Tank