Author Topic: Apartment over parking lot- bedroom/bathroom floor shakes  (Read 4877 times)

gubbagumma

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Apartment over parking lot- bedroom/bathroom floor shakes
« on: April 05, 2013, 10:25:35 PM »
I live in a 1BR apartment. The building is built such that parts of apartments at one end (which includes mine) do not have units directly below them, and instead sit above the parking lot (held up by a column).

My neighbor and I both have experienced a frequent problem where vibrations or tremor like sensations go through the floors of our bathrooms and bedrooms. This shakes mostly everything within a certain radius, which includes the bed and everything in the bathroom. The bed tends to shake the most. We have both speculated that the problem was due to either earthquake activity or our own footsteps, but after testing it out we found that's not necessarily the case. Plus, it's unlikely that earthquakes are that frequent, even where I live.
I guess the problem is due to cars or trucks on the roads nearby or pulling under our apartments that create the shaking.

What could I try to reduce the bed shaking? The bed legs sit on 'bed-boots' and so is already elevated to an extent. Could I try putting shock absorbent sorbothane pads under each leg? I look forward to any help.

johnbergstromslc

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Re: Apartment over parking lot- bedroom/bathroom floor shakes
« Reply #1 on: April 06, 2013, 02:47:53 PM »
It's gonna be difficult to reduce that kind of vibration - the frequency is too low.  This isn't really a 'soundproofing' problem, it's a structural deficiency problem.  The beams aren't massive enough to dampen out the vibration and the footings are probably too small as well. 

Maybe Randy will have some suggestions....

gubbagumma

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Re: Apartment over parking lot- bedroom/bathroom floor shakes
« Reply #2 on: April 06, 2013, 10:01:34 PM »
The shaking is not too severe, but it is noticeable enough when there is nothing else going on.

Will towels or some mat (like some of the materials offered here) work to dampen? It's more like a 'wave' or 'wiggle' feeling than a straight up shaking. It only really shakes when I deliberately stomp on the floor and even then, not much. I just figure the wave feeling came from outside sound.

johnbergstromslc

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Re: Apartment over parking lot- bedroom/bathroom floor shakes
« Reply #3 on: April 07, 2013, 03:57:39 PM »
The shaking is not too severe, but it is noticeable enough when there is nothing else going on.

Will towels or some mat (like some of the materials offered here) work to dampen? It's more like a 'wave' or 'wiggle' feeling than a straight up shaking. It only really shakes when I deliberately stomp on the floor and even then, not much. I just figure the wave feeling came from outside sound.

Probably not.  As I said, the frequency is too low.  You'd need to put the room on springs or shock absorbers to dampen that level of vibration.

gubbagumma

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Re: Apartment over parking lot- bedroom/bathroom floor shakes
« Reply #4 on: April 08, 2013, 03:15:59 AM »
Does that involve removing the wooden tiles on the floor and installing the springs or absorbers?

What if the tiles were replaced by a carpet in just the bedroom?

Would spring isolators work for the bed legs?

Thanks for your replies.

johnbergstromslc

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Re: Apartment over parking lot- bedroom/bathroom floor shakes
« Reply #5 on: April 09, 2013, 01:03:53 AM »
Nah, give it up.  Not gonna be able to adequately reduce the vibration.

Either get used to it or move...

gubbagumma

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Re: Apartment over parking lot- bedroom/bathroom floor shakes
« Reply #6 on: April 13, 2013, 05:31:15 AM »
My lease is 6 months and the rent is cheap, so no way.  ;D

I actually figured it out; it is my neighbor. He walks heavy in his bathroom and it causes the shaking. I've gotten used to it, as it's not every five minutes and I'm not in my room all day so it's not a big deal.

I actually put some pieces of rubber mats underneath each bed leg, and that seems to help dampen it a bit.

gubbagumma

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Re: Apartment over parking lot- bedroom/bathroom floor shakes
« Reply #7 on: April 14, 2013, 02:00:19 AM »
Just replying to this thread in case anybody else would like to help.

Would semi-soundproofing the bed area with an area rug combined with MLV or other materials help dampen the structural impact noise?

Randy S

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Re: Apartment over parking lot- bedroom/bathroom floor shakes
« Reply #8 on: April 17, 2013, 04:01:50 PM »
That is a tough question to answer, sound, especially impact and vibration will easily move to an area of least resistance and therefore be difficult to predict the value of a "band-aid" attempt.
Normally you have to make the attempt to find out the results...
if your willing to gamble go for it...use the dimple vibtration pads in combination with mlv w/closed cell foam cover the entire area under the bed put the vib pads in the mlv then your bed.

if you decide to try let us know the results please

http://www.supersoundproofingsales.com/prodinfo.asp?number=09-00005CC-54F

http://www.supersoundproofingsales.com/prodinfo.asp?number=09-4-4-DIMPLE
Randy Sieg

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Re: Apartment over parking lot- bedroom/bathroom floor shakes
« Reply #9 on: September 13, 2014, 03:25:46 PM »
See http://www.soundproofing.org/sales/vibrationpads.htm can help, but you'll have to experiment to find out whats best. 
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