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curved bridge???
 Moderated by: Herb Kephart Page:    1  2  3  Next Page Last Page  
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 Posted: Wed Feb 13th, 2013 01:20 am
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smokebox
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HIYA Everyone....

Was there ever a curved deck girder bridge?
The reason I ask is I'm actually building my bridge module now and thought of the line coming out of a tunel portal and going over two small streams, actually the same one sorta like in a horseshoe.
The module will be 12*24 inches. I thought I would have a curve in there so it would be portal, small bridge, rock outcropping, small bridge and portal going back into a mountain.
Any ideas???
Or should i just break out thin styrene and angle irons and make up Some???
The measurements I listed are so to say "set in stone " as I'm building on A 12*24 sheet of birch plywood..

Smokebox

Last edited on Wed Feb 13th, 2013 01:21 am by

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 Posted: Wed Feb 13th, 2013 09:13 am
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Dallas_M
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I dunno if there were ever "really" any ... but I faked a big double-track curved, ballasted-deck girder bridge on an old N scale layout ... same reasons:  to make things fit! :)



Also faked this one on the same layout, and I think this one looks a little better ... maybe more believable ... but definitely more interesting.  This was just some ready-made Plastruct angle truss strips glued to the underside of the track ... then some bridge shoes and scratchbuilt piers ...

You can search out prototypes and go nuts ... or just search enough to make things that you can sorta mold/bend/modify to suit your project.  Have fun!

PS -- Second photo might be useful to Woodie, who recently lamented the need for zillions of trees on Muj's layout ... this layout has zillions of trees.  Around 95% of them are just WS foliage (the fiber-y, pillow-y stuff) puffed out on painted toothpicks and dusted with various shades of fine turf.  Then just a handful of "better" looking trees to break of the front edge ... and just the "tops" of some better looking trees blended into the sea of trees to give that same feel ...

Last edited on Wed Feb 13th, 2013 09:17 am by Dallas_M



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 Posted: Wed Feb 13th, 2013 10:25 am
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W C Greene
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Thanks Dallas, I am considering the tree problem. Then again, I could make the layout based in Death Valley. LOL

Woodie



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 Posted: Wed Feb 13th, 2013 08:17 pm
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Herb Kephart
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I like that mine building in the second photo, Dallas-

Herb



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 Posted: Wed Feb 13th, 2013 11:35 pm
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smokebox
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Me to.....

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 Posted: Thu Feb 14th, 2013 06:44 am
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pipopak
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There are not curved bridges out in prototype world, instead they build wider bridges to fit the curved track or break down the curve into shorter straight sections.



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 Posted: Thu Feb 14th, 2013 10:02 am
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smokebox
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HIYA..

I did find a picture of a curved deck girder bridge!!
I also gave myself a headache by the time I found it and forgot to mark it.
I have to admit I did not reread my Model Railroader bridge & trestle book, but seem to remember that it said something about building them wide for slight curves.
It has to be a strong bridge, with a catonary pole in the center of the span along with 1 on each end so I can put the curve in the wire.
I think it will be more difficult to make the hardshell look right without overpowering the small size of the module and throwing everything out of kilter.

Smokebox

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 Posted: Thu Aug 22nd, 2013 06:00 am
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Alwin
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I know the last post is from a while back but for some curved bridges take a look at this site:
http://www.trainminder.com/html/curved_bridges.cfm

Alwin

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 Posted: Thu Aug 22nd, 2013 09:45 am
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Herb Kephart
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Good link!



Herb



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 Posted: Thu Aug 22nd, 2013 12:11 pm
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smokebox
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Great link!!

I wish there were more shots of the one in Africa.

Smokebox

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