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curved bridge???
 Moderated by: Herb Kephart Page:  First Page Previous Page  1  2  3  Next Page Last Page  
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 Posted: Thu Aug 22nd, 2013 05:43 pm
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Alwin
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And here is another link to curved bridge's. This time not only railroad bridges.
http://bridgehunter.com/category/tag/curved/

Smokebox: I couln't find any more info or pictures of the African bridge. That is for sure a great looking bridge.

Alwin

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 Posted: Thu Aug 22nd, 2013 07:35 pm
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pipopak
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There are not curved truss or deck bridges because at the center of the curve the load  may fall outside the centerline of the deck. This situation does not happen on a trestle or stone viaduct where the bridge has a continuous line of footings following the track.[url=javascript:emoticon(':old dude:', 'images/emoticons/gerg.gif')]document.write('[/url]'); Jose.



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 Posted: Thu Aug 22nd, 2013 07:37 pm
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smokebox
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HIYA..

I'm trying to figure out how to work that bridge into my module.

And keep it small enough to be a modlue..
I would like to toss some Virginian RR Applician Terrain into my line that will be moved toward the West somewhere around the ( yes this is a large zone) Louisville-St. Louis area..
The narrow gauge will likely serve a quarry that produces blocks for tunnels and bridge piers and ballast for the freight line..

That would look great with a heavy traction freight line going over a narrow gauge steam line that shares a stream or small river below..
What I'm trying to figure out is who's bridge components would look the best? ?
Central Valley or Micro. ???

Rob Wright
Smokebox

Last edited on Thu Aug 22nd, 2013 07:40 pm by

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 Posted: Fri Aug 23rd, 2013 02:13 am
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JawboneFlats
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Smokebox, I remember the first time I rode the Bernina Railway from Chur to Italy and saw the Roman arch bridges of the Alps. I was ready for the famous Landwasser viaduct where a curved stone viaduct carries the track from a tunnel portal on a vertical cliff. http://en.wikipedia.org/wiki/File:Landwasserviadukt.jpg

After we had almost left the mountains, coming into Italy, crossing the Brusio stone spiral viaduct was an unexpected and delightful surprise. It's not girders, but maybe these will suggest a solution to your tunnel-bridge-tunnel problem. http://en.wikipedia.org/wiki/Brusio_spiral_viaduct

Here's an example from an old HOn3 layout that has been pressed into service on the newer On30 (construction is simple: cardboard and wall joint compound plus photo-shopped background). Dennis aka JawboneFlats

Last edited on Fri Aug 23rd, 2013 02:16 am by JawboneFlats

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 Posted: Fri Aug 23rd, 2013 05:58 am
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pipopak
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The Brusio viaduct pic is a great one. Also proves that if you don't like weathering there is a prototype also. Jose.



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 Posted: Fri Aug 23rd, 2013 07:22 am
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smokebox
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HIYA..

Cardboard and joint compound..

That looks great!!

Smokebox

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 Posted: Fri Aug 23rd, 2013 11:29 am
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Herb Kephart
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Holy Horsefeathers !

That Brusio thing would scale out at a larger than usual, but still practical 36" in HO, and on a 7% grade?????

Is that a rack system, or do they use Lionel Magna-traction?


Herb



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 Posted: Fri Feb 21st, 2014 04:13 pm
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Alwin
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I was in Switserland this week and took a picture by the Brusio viaduct:



Nice!

But wait! I wasn't in Switserland. I've been to a trainshow in the Netherlands today. But you could have known this wasn't Switserland! The Alps, in the winter, everything green and no snow?

Here is the same photo without some parts cut off. Look also at the size of the mountains, huge!



And a bonus photo:



Scale is H0. The bridge is exactly on scale.

The guy who build this told me that the spiral wasn't inside the mountain because of the loose rocks, so they couldn't build a tunnel.

Alwin

Last edited on Fri Feb 21st, 2014 04:14 pm by Alwin

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 Posted: Fri Feb 21st, 2014 08:42 pm
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jtrain
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Good modeling. Kudos to the master modeler who built that display.

Say, which model railroad is that in the background. It's the one with the American flag on it. I ask because I think I recognize it from somewhere else on the Internet.

--James:java:



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 Posted: Sat Feb 22nd, 2014 07:40 am
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Alwin
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James, that railroad is Lake Louisa. Build by Ronald Halma.
You can find some photo's here:

http://forum.beneluxspoor.net/index.php/topic,32221.645.html

Alwin

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