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SP Concrete Phone Booths
https://www.rypn.org/forums/viewtopic.php?f=1&t=31279		 Page 1 of 1
Author:  atsfm177 [ Mon Apr 25, 2011 1:35 am ]
Post subject:  SP Concrete Phone Booths
Can anyone give me the weight and dimensions of the typical round concrete SP phone booth?

Greg
Author:  Bob Davis [ Mon Apr 25, 2011 2:43 am ]
Post subject:  Re: SP Concrete Phone Booths
If nobody comes up with the dimensions before next weekend, I'll measure the booth on display at Orange Empire. Can't help with the weight, but "very heavy" comes to mind. Just as a guess, I wouldn't try to load it in a half-ton pickup.
Author:  dpeterson3 [ Mon Apr 25, 2011 7:37 am ]
Post subject:  Re: SP Concrete Phone Booths
If you get the dimensions and the thickness of the wall, we can use the density of common concrete to get an idea of what the weight would be. Multiply the outside dimensions by about 145 lb/cubic foot minus the inside dimensions multiplied by 145 lb/cubic foot. I realize that 145 is not necessarily the correct density for this concrete, but I think it would give a pretty good estimate( + or - ~30 lbs).
Author:  railfan44 [ Wed Apr 27, 2011 11:51 pm ]
Post subject:  Re: SP Concrete Phone Booths
Bob and Greg

John Smatlak has a e-article from the SP magazine on the booths. It has all the dimensions (which would be difficult to measure), and if I remember right, the weight. I only copied one of the diagrams (see below).

Why would you want to know the weight? It would be very difficult to calculate because of the odd shape and the heavy door, heavy metal door frame, and the hidden rebar. See picture.

As the person who did the renovation on two of the four booths at OERM and placed them. All you need to know is that they are [supply a nasty word here] heavy.

Attachments:
Booth.JPG
Booth.JPG [ 82.75 KiB | Viewed 4996 times ]
110119 Platform Phone Booth Closed Door small.jpg
110119 Platform Phone Booth Closed Door small.jpg [ 251.53 KiB | Viewed 4996 times ]
Author:  atsfm177 [ Thu Apr 28, 2011 12:02 am ]
Post subject:  Re: SP Concrete Phone Booths
railfan44 wrote:
Bob and Greg


As the person who did the renovation on two of the four booths at OERM and placed them. All you need to know is that they are [supply a nasty word here] heavy.


Well, then can you tell me at least how big a forklift I need to move one? :-)

Greg
Author:  railfan44 [ Fri Apr 29, 2011 12:47 am ]
Post subject:  Re: SP Concrete Phone Booths
We used the biggest OERM has and it just made it. Lifted it by the roof loops. See picture.

Attachments:
110118 Platform Phone Booth small.jpg
110118 Platform Phone Booth small.jpg [ 288.96 KiB | Viewed 4866 times ]
Author:  nickbnwd [ Sun May 01, 2011 7:12 pm ]
Post subject:  Re: SP Concrete Phone Booths
A group I work with in PA moved a concrete PRR booth using a Case 580 backhoe to shove it around over to a tilt-bed truck. I was not there but believe they needed both the backhoe and truck winch to get it up the bed.

Make sure you use an appropriate swear word when describing the weight.
Author:  Dennis Storzek [ Mon May 02, 2011 2:23 pm ]
Post subject:  Re: SP Concrete Phone Booths
Would have been nice if whoever posted the sectional view of the structure would have also provided the height. With the photo of one of these being placed, we finally have something to estimate that from. The drawing shows these things are 3' in diameter inside, with a 4" thick wall. I estimate the overall height is 8', and the interior height is 6'-4".

The formula for the volume of a cylinder is pi X radius^2 X ht. I calculate the total volume as appx. 84 cu.ft., from which I subtracted the interior volume of 44 cu.ft. leaving 40 cu.ft. of concrete. At 150 pounds per cu.ft. the structure should weigh 6,000 lbs. This is, of course, ignoring the slope of the roof, and figuring that the steel door weighs approximately the same as the concrete it replaces, so if anything, it errs on the heavy side, but I wouldn't want to try to lift one of these with less than a 6000 lbs. capacity fork lift, and only on real short centers; not with the tips of the forks. Keep in mind most lift trucks are rated with the center of the load 2' from the mast, which is just barely obtainable with these phone booths.

Dennis
Author:  atsfm177 [ Mon May 02, 2011 5:45 pm ]
Post subject:  Re: SP Concrete Phone Booths
Marty found and sent me the article he mentions above, and reading through it, it states that the booths weigh 3000 lbs. Since I have a 5000# forklift handy, hopefully that will be adequate. If not I'll have to move it with the loader which require a bit more rigging. :-)

Greg
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