Strength of a steel 55 Gal drum
Phant...@nospam.invalid
support? I'm going to take my boat (approx 4,000 lbs) off the trailer
and I'm looking at options. I have two drums in reasonably good
condition that I can use in the rear and I'll use concrete blocks
forward.
I've never used drums before and I keep getting a mental image of what
happens to a beer can when I stomp on the top of it. I've seen other
people use drums though. But I never really thought much of the idea
before now. Are two of them strong enough to support half the weight
of a 4,000 lb boat for a week or two?
TIA,
Rick
Wayne.B
I suspect that the answer may depend on whether or not the drums are
full or empty. Just a guess on my part.
Why not rent or borrow some Brownell boat stands? I know from past
experience jacking up my old Cal-34 that each stand is good for at
least 2,500 lbs.
Phant...@nospam.invalid
>>Does anyone here know off hand how much a steel 55 gal drum can
>>support? I'm going to take my boat (approx 4,000 lbs) off the trailer
>>and I'm looking at options. I have two drums in reasonably good
>>condition that I can use in the rear and I'll use concrete blocks
>>forward.
>>I've never used drums before and I keep getting a mental image of what
>>happens to a beer can when I stomp on the top of it. I've seen other
>>people use drums though. But I never really thought much of the idea
>>before now. Are two of them strong enough to support half the weight
>>of a 4,000 lb boat for a week or two?
>>TIA,
>>Rick
On Sat, 24 Apr 2010 21:07:06 -0400, Wayne.B wrote:
>I suspect that the answer may depend on whether or not the drums are
>full or empty. Just a guess on my part.
>
>Why not rent or borrow some Brownell boat stands? I know from past
>experience jacking up my old Cal-34 that each stand is good for at
>least 2,500 lbs.
They're empty at the moment. But I can spare 110 gallons of water if
need be. I hadn't thought of that.
I'd rather use boat stands for sure. But the two boat yards I've
always depended on here were swept clean in Katrina and didn't come
back. Not sure where I could find stands here locally. I can check
around on Monday though. Just occured to me that the owner of one of
the rental centers here is a boat guy. Maybe he 'em. Or maybe I can
convince him to buy some. I'm not the only one here with this problem
and he'd have the market cornered. lol!
Steve Lusardi
necessary.
Steve
<Phant...@nospam.invalid> wrote in message news:5bu6t5htv14qn2stp...@4ax.com...
Phant...@nospam.invalid
Thank you
Rick
On Sun, 25 Apr 2010 09:42:43 +0200, "Steve Lusardi" wrote:
>Assuming the load is in column and applied across the entire barrel top, there is absolutely no problem and water is not
>necessary.
>Steve
brian whatcott
I did a quick scan for strength properties of 55 gal steel cans.
55 gal can crushers feature forces from 3.8 tons to 20 tons (but they
need to compress to around 6 inches, which increases the force required.)
On the other hand, compressive force allowables are harder to find. I
saw one figure of 1800 lb mentioned which probably carries a safety
factor...
Your estimated load of 1000 lb per can, particularly if you can put some
load spreader on top - a plank or small ply sheet - should give no
problems.
I notice my kid's Hunter 25 ft up for scrape and paint this week, was
supported on a few spindly 1.5 inch diameter jack stands at the pro yard.
Brian W
Phant...@nospam.invalid
>> Does anyone here know off hand how much a steel 55 gal drum can
>> support? I'm going to take my boat (approx 4,000 lbs) off the trailer
>> and I'm looking at options. I have two drums in reasonably good
>> condition that I can use in the rear and I'll use concrete blocks
>> forward.
>> I've never used drums before and I keep getting a mental image of what
>> happens to a beer can when I stomp on the top of it. I've seen other
>> people use drums though. But I never really thought much of the idea
>> before now. Are two of them strong enough to support half the weight
>> of a 4,000 lb boat for a week or two?
>> TIA,
>> Rick
On Sun, 25 Apr 2010 11:40:00 -0500, brian whatcott wrote:
>I did a quick scan for strength properties of 55 gal steel cans.
>55 gal can crushers feature forces from 3.8 tons to 20 tons (but they
>need to compress to around 6 inches, which increases the force required.)
>On the other hand, compressive force allowables are harder to find. I
>saw one figure of 1800 lb mentioned which probably carries a safety
>factor...
>
>Your estimated load of 1000 lb per can, particularly if you can put some
>load spreader on top - a plank or small ply sheet - should give no
>problems.
>
>I notice my kid's Hunter 25 ft up for scrape and paint this week, was
>supported on a few spindly 1.5 inch diameter jack stands at the pro yard.
>
>Brian W
Good info to know. Thanks.
Normally, I would rest the boat's weight on the keel so the stands (or
drums) would be there more for balance than support. But my boat has
a stub keel that houses a centerboard and I'll need working room
underneath it to lower the centerboard at least partially. So that's
why the weight will all be on the stands/drums.
And thanks.....
Rick
Wayne.B
>Good info to know. Thanks.
>Normally, I would rest the boat's weight on the keel so the stands (or
>drums) would be there more for balance than support. But my boat has
>a stub keel that houses a centerboard and I'll need working room
>underneath it to lower the centerboard at least partially. So that's
>why the weight will all be on the stands/drums.
>And thanks.....
On a humorous note, quick calculations reveal that if you fill each
drum with concrete and rebar, they should support in excess of
2,000,000 lbs each. :-)
Phant...@nospam.invalid
>>Good info to know. Thanks.
>>Normally, I would rest the boat's weight on the keel so the stands (or
>>drums) would be there more for balance than support. But my boat has
>>a stub keel that houses a centerboard and I'll need working room
>>underneath it to lower the centerboard at least partially. So that's
>>why the weight will all be on the stands/drums.
>>And thanks.....
On Sun, 25 Apr 2010 20:15:17 -0400, Wayne.B wrote:
>On a humorous note, quick calculations reveal that if you fill each
>drum with concrete and rebar, they should support in excess of
>2,000,000 lbs each. :-)
I'll make note of that. It'll be useful for when I began work on my
houseboat conversion plan from a decommissioned aircraft carrier. :-)
Shanghai
I had 4 drums filled with wheel balancing weights. Each drum held
about 1800 lbs. The sat outside for several years and developed some
rust. I was able to pick them up without the bottoms falling out. Of
course that is the opposite direction of the force you're talking
about.
Bruce
That is round a bout 2800 psi/sq. inch, isn't it? Whatcha going to use
to stand it on :-?
Cheers,
Bruce
(bruceinbangkokatgmaildotcom)
brian whatcott
Good thought. That pressure's even higher than a woman's stiletto heel.
Hopefully not on an airliner's passenger floor then :-)
Brian W
Wayne.B
wrote:
>>On a humorous note, quick calculations reveal that if you fill each
>>drum with concrete and rebar, they should support in excess of
>>2,000,000 lbs each. :-)
>
>
>That is round a bout 2800 psi/sq. inch, isn't it? Whatcha going to use
>to stand it on :-?
Good question, different problem. :-)
Deep-driven pilings? Footings excavated to bedrock? I-beam latice?
PS, I'm not a civil engineer, just playing one on the internet. :-)
ihat...@gmail.com
Phant...@nospam.invalid
things to do list, but bumped down in priority due to aging and health
problems.... among other issues. I still have the drums and hope to
get back to the boat project someday if I live long enough. Otherwise,
the project could fall to one of my unfortunate heirs. In my will
though, I'll point to this thread for guidance. There's some good info
here that an unfortunate heir is going to need. ;-)
(but hopefully I'll get back to it myself at some point)
Phant...@nospam.invalid
>to stand it on :-?
Something very very solid and stable.