ᐅ Columns through subflooring

Created on: 6 Mar 2012 16:40
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J
Jönu-1
6 Mar 2012 16:40
Hello everyone,

I am new to this forum and already have my first question.
A bit about me: My name is Jonas, I’m 20 years old, and I’m an avid aquarist. I still live with my mother in a house, 22 years old.

About my issue:
As mentioned, I have aquariums. The old setup is becoming too small, so I need a larger one.

The planned setup will weigh nearly 2 tons (4400 lbs) and will cover an area of 2.4 x 0.6 meters (7.9 x 2 feet).
The subfloor won’t be able to support this weight, but the concrete ceiling below it will, as assured by the architect.

I received the following advice:
There is a special heat-sensitive paper that you place on the floor. It shows the exact location of the underfloor heating pipes. This way, you know exactly where the pipes are. You could then drill holes down to the concrete slab. What I mean is that you can support the entire load on steel or stone columns resting on the lower floor. Above the columns, you place a board and then the aquarium stand.
You could also have a substructure welded with about six legs. At the legs, you drill holes down to the concrete slab. This way, your underfloor heating stays intact. The holes can later be refilled, and the tiles replaced on top.

However, the person who gave me this advice has no experience with this and can’t assist with implementation.

Maybe someone here has experience with this and can help?
How large should the columns be? How much might this cost approximately, or could it be done as a DIY project?

A few more details about the floor:
The floor will be redone anyway, so there will be renovations regardless. It will probably be a self-leveling floor or linoleum.

I’m looking forward to good answers and a great collaboration here in the forum.

Best regards,
Jonas
M
MODERATOR
6 Mar 2012 17:29
Hello Jonas,

You might want to consult a structural engineer after all; according to your information, the load from the aquarium is not distributed over an area but rather as six point loads of 330 kg (730 lbs) each – can the ceiling support that? I recommend having this calculated.
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Serena1990-1
22 Apr 2015 10:52
Hi,

We also have an aquarium, but not as large. Of course, we were concerned whether the floor could support the weight. We had a structural engineer come to assess it, and he recommended building a substructure. However, instead of just 6 supports, he suggested using 10 supports. This way, the load is well distributed.

So far, everything has held up well, and I hope it will continue to do so in the future.
J
Jonas-1
11 May 2015 15:08
That’s not a very heavy weight. Personally, I wouldn’t have any concerns; you just need to visualize it. However, a structural engineer can of course provide the correct answer.
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Bodenmann-1
14 May 2015 22:49
The insulation paper you are looking for is called CPM-Monitor and is available in different temperature ratings. As far as I remember, I bought mine from DS-Derendinger AG in Thörishaus.
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herrmann-1
14 Jun 2015 16:32
Hello Mr. Bodenmann,

Thank you very much. I had already been looking for it but could not find it. This thermal insulation paper is really good and can be used immediately.

However, it should also be installed by a professional.