evaluate my steel stand
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Old 06-21-2013, 09:13 AM   #1
yanzco
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evaluate my steel stand


hi guys..
just finished painting my new stand for my 100 gal concrete aquarium..

100 gal. water - est. 400 kg
3 inch bottom slab - est. 250 kg
3 inch side slabs - est. 100 kg
12mm glass panels - est. 20 kg
substrate , hardscape - 30kg
est. total weight of 800kg +


i had a stand before made of coco lumber..
but i was doubting it could hold this much weight..
so i made this new stand to make me feel safer..

if there are any engineers here. please evaluate my stand.
if it could hold 1000 kg / 1ton..

i used what available materials i could get in my place
( house undergoing construction )

used 2x2 angle bars 3mm thick and 1x1 angle bars 3mm thick.
some steel tubes.. and some 2mm thick square bar..
and some c puline like bar.. thou i do not know what it's name is..




and heres a rough diagram in paint on how i planned it.
(forgive my paint skills)



stand dimensions are..

length 57 inches
width of 25 inches
height of 43 inches
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Old 06-22-2013, 01:42 AM   #2
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I believe the tank will be supported almost entirely by the 4 corners, so the middle of the tank might tend to deflect excessively. The highest loads appear to be on the upper, front and back horizontal angles across the length of the tank - in tension; in the middle front and back horizontal angles across the length of the tank - in bending; and the 4 legs where the middle horizontal angles across the length of the tank attach - in bending. But I made no effort to calculate those loads, since I have no idea what the strength of the steel parts is.
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Old 06-22-2013, 03:02 AM   #3
yanzco
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thanks !!
well. im quite confident it could take 800+kg..
hope im not wrong..

here's the stand with the tank on top..
took 6 guys to transfer the tank from the previous stand to the new one..

placed 3/4 marine plywood at the bottom coated with marine epoxy for extra strength..

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Old 06-22-2013, 05:18 AM   #4
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It would really be interesting to read how you made that concrete tank. I assume you have some reinforcing steel in the concrete?
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Old 06-22-2013, 07:04 AM   #5
yanzco
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yep, used 10mm rebars for the bottom and side slabs..

heres my tank journal..
http://www.plantedtank.net/forums/sh...d.php?t=344514
thou still an ongoing project.. hehe :p
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Old 06-25-2013, 11:07 AM   #6
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What is it that you were looking to have the stand structurally evaluated for? For it to double as a bomb shelter?? Or to serve as a bridge for heavy vehicles??

I'm not an engineer, but it certainly looks more than sufficient, judging by comparing it to other tanks and stands. I couldn't grasp why you were planning to use 3" slabs at the bottom and sides until you posted the picture which shows those made of concrete rather than glass!...
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Old 06-25-2013, 07:26 PM   #7
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this [censored][censored][censored][censored]ing rules you're a mad genius
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Old 06-26-2013, 12:56 AM   #8
yanzco
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i was haveing doubts if it could carry 1000kg load..
but, having placed the tank on top. i thought, maybe this is strong enough..

i placed ashlar stones for the exterior, and those were really heavy.. 8 pcs of 4"x8" ashlar stones needs both of my hands to carry them and slouching a bit from the weight..

@Mxx, i actually copied a bit of the design from a bridge... hehe..


hehe..

Last edited by yanzco; 06-26-2013 at 01:13 AM.. Reason: added info
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Old 06-26-2013, 01:02 PM   #9
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Yeah, pretty sure it could withstand a direct mortar attack. And not only can it be a tank itself, you could turn it upside down and use it to stop tanks as well!
http://rotr.swr-productions.com/imag...U_TankTrap.jpg
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Old 06-26-2013, 04:14 PM   #10
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I would of went with some 1.25 or 1.5, .120 wall square tube in place of the 2x2. Triangulation looks good. Hope you burned the crap out of those welds . Its probably OK, I guess I tend to overbuild.
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Old 06-27-2013, 12:21 AM   #11
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yep.. used 2kilo of welding rods to weld all this together.. hehe..
i think angle bars are more solid than square tubes.. since angle bars are solid, and the square tubes are rolled and welded together.. but yeah, as long as it's welded all together fine.. it'll hold..

with the tank canopy, and exterior stones, plus the sump gravels and water..

it's okay to overbuild, it takes away your 'worry-ing'..
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Old 06-27-2013, 01:42 AM   #12
Rodneywt1180b
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Please keep us posted on your progress. That is one awesome looking tank.
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Old 06-27-2013, 01:11 PM   #13
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Angle iron is also "rolled". Square of same thickness for simple purposes is twice as strong as angle, how much depending on its construction (CREW, HREW, DOM).
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