Light weight bridges

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rue_d_etropal
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Light weight bridges

Postby rue_d_etropal » Mon Nov 07, 2016 11:21 am

After looking at some photos, I am wondering about construction of light weight, often military built narrow gauge railways.
Early bridges were typically wooden, and track was sleepered. On later beidges the supports might still be wooden, but longitudinal metal girders were used. Some bridges had more substantial supports, and as there were so string often still exist.
Anyway, my question is about how the sleepers were(if at all) attached to the longitudinal girders.
Makes no difference in a model, just wondering.
Simon Dawson
(Simon D.),
Narrow gauge Francophile interested in 1m, 60cm,50cm , 40cm and smaller gauges . Build in scales from 1/6th to 1/24th. Also 1/32nd and 1/35th using 16.5mm track to represent 50cm and 60cm gauges.
http://www.rue-d-etropal.com

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chris69
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Re: Light weight bridges

Postby chris69 » Mon Nov 07, 2016 8:12 pm

After WWII a lot of BAILEY BRIDGE Elements found their way in the NG field.
They where cheap as surplus and all over the place. On top of that,
light weight and easy to assemble without the need for heavy lifting gear.
Chris
It's my RR and it exists,in my mind!!!!!!!!

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rue_d_etropal
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Posts: 2158
Joined: Fri Oct 07, 2005 4:55 pm
Location: Accrington and sometimes France
Interests: France, any narrow/minmum gauge 40cm,50cm , 60cm

Re: Light weight bridges

Postby rue_d_etropal » Mon Nov 07, 2016 9:13 pm

The Bailey bridge is more complex than the bridges I mean. In the book on Longmoor it shows them building simple bridges with longitudinal metal beams and sleepered track on to. Just wondering if it was fixed in place. This was for standard gauge but it was also used for narrow gauge.
Simon Dawson
(Simon D.),
Narrow gauge Francophile interested in 1m, 60cm,50cm , 40cm and smaller gauges . Build in scales from 1/6th to 1/24th. Also 1/32nd and 1/35th using 16.5mm track to represent 50cm and 60cm gauges.
http://www.rue-d-etropal.com


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