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Force / Radians, wheel pressure?

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wth

Structural
Dec 15, 2012
75
I'm designing a slab on grade that's supporting movable column lifts at any given place.

From the building owner, we have recieved a data sheet for the column lifts, with an pressure force under the column, and a force under the supporting wheel given as: daN / rad.
There is no further explanation given on how the daN / rad force is supposed to be translated to a reaction force on my slab, and so far I have no luck finding any elsewhere.

Have anyone come across this before, and have any pointers? See the force diagram below, thet SMath snippets are my own conversions.

wheel_force_isvi5w.png
 
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Those units are new to me. Ask the owner for clarification or call the manufacturer.
 
Hi wth

I will have a guess at this although I have never seen it before, if you know the radius of the wheel and it rotates 1 radian then that equates to a specific linear length the wheel as travelled, so could it be it’s the force of 3320daN spread over the linear distance of the wheel the wheel as it rotates the 1 radian

“Do not worry about your problems with mathematics, I assure you mine are far greater.” Albert Einstein
 
Maybe something like this

It looks like the front wheels are on arms that can pivot, so maybe they provide a line load along a circular arc to simplify things?

Untitled_gr1img.png
 
It looks to me like those units are what they needed to check wheel/roller design, but you'd need to contact them to get total reaction at that point.
 

I am not sure how you did interpret rad is for radian.. I think this column lift is German make ( Finkbeiner )There are two models EHB 907 and 908 and there are two wheels . 2950 daN load for each wheel for model EHB 907 .. ( Rad stands for wheel , tire etc..)

P.S. Probably i will not have internet acess for the next 3-4 mounths and this respond probably will be one of my last posts..
 
Thanks everyone, I think HTURKAK just saved me a lot of head scratching!
The document I recieved is in Norwegian, and is marked "translated version of original document". German and Norwegian have similarites, but rad and wheel is not one of them.

They've obviously not bothered translating the drawings, so it's simply 32,2 kN/wheel.
 
Hturkak said:
Probably I will not have internet access for the next 3-4 months and this respond probably will be one of my last posts..

Holy moses - where are going? Even deep sea vessels can get satelite internet now....

Or is this a digital detox program?

But a great shout - the obvious answer once you know it!

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
 
Sounds like a good explanation, but I would still check with the manufacturer.

another day in paradise, or is paradise one day closer ?
 
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