Platform settling

[namasti12]

Hi All. I have a 30 foot Pacific yurt that went up in September of last year (2015). It has been essentially empty since then as we are still setting up utilities, etc. I noticed the past few months that the platform is becoming uneven in certain areas and figured it was just settling. This weekend I realized that the entire perimeter of the platform is down about 2 inches from the center. Is this normal? I'm assuming that it is because the weight of the yurt is only on the edges? Has this happened to anyone else. Thanks.

[hierony]

Two inches sounds a bit much. If you're platform was well built you'd probably get a little settling, but I would hope for more like 1/4 to 1/2". How'd you measure the drop?

What kind of platform do you have? Can you post some pictures? How is it attached to the ground?

[namasti12]

I can post some photos the next time I'm up there.

The platform has sonotubes 3-4 feet in the ground. I believe it was built using the

Pacific Yurts

platform plans.

I know it is around 2 inches (maybe a little less) because we were building a loft this weekend and in order to keep the floor of the loft level, the vertical wall beams measured about 1/4" in difference every 16", so the end result was that vertical beam in the center was about 2 inches shorter than the last vertical beam near the wall. Then I took a level to the rest of the floor and realized that the entire perimeter of the yurt was lower then the center.

Hope that makes sense

[Bob Rowlands]

Hard to figure this one out online. I suggest you give the outfit that built the platform a call and ask them? I agree with hierony two inches is a fair amount of settling. There's a logical explanation, but without being there and looking at the build it is a head scratcher. Good luck.

[Jafo]

I agree with Bob and Hierony.

[Ivan]

wonder how deep the Sono tubes are? But going forward you an probably jack up the yurt to level, and put spacers and brackets .
Do you live in a cold climate in the mountains? Frost and thaw conditions..

Good luck Ivan