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Sleeper (tie) spacing
Sleeper (tie) spacing
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Rastun
Member since
October 2004
From: Northwest Montana
409 posts
Sleeper (tie) spacing
Posted by
Rastun
on Thursday, April 21, 2005 9:52 AM
When the 1:1 railroads lay track around a curve do they try to keep the spacing the same on the outside of the curve, allowing the inside to be slightly closer than normal or do they keep the spacing on the inside of the curve and allow the spacing to be farther apart on the outside [?]
Common sense would tell me keep the outside at the proper spacing and bring the inside closer together to keep rail support and loading at least what it is on a straight section.
Thanks in advance,
Jack
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CandCRR
Member since
March 2005
From: Southern New Hampshire
148 posts
Posted by
CandCRR
on Friday, July 15, 2005 11:29 AM
Jack,
Since apparently no one knows for sure I will share what I have been told. I have not been able to find an "official" answer but someone in the building industry told me it would be the same spacing on the outside of the track, closer on the inside. He told me the spacing is in part is based on the weight load that can be carried. If the ties were farther apart anywhere that would reduce the load that the could be handled.
Jaime
Thank you, Jaime
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kstrong
Member since
September 2003
From: Centennial, CO
1,192 posts
Posted by
kstrong
on Friday, July 15, 2005 8:04 PM
Spacing was never "precise," either. Most specs for standard gauge railroads had a range between 19" to 22". So long as the ties were within that range, they were fine. Also, the differences between the spacing on either end of the ties for the average standard gauge curve would be pretty small.
Later,
K
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Rastun
Member since
October 2004
From: Northwest Montana
409 posts
Posted by
Rastun
on Friday, July 15, 2005 9:22 PM
From my own research since this question was posted back in April, I have found. As Mr. Strong pointed out there is a range for the tie spacing, thus with very large radius curves as 1:1 railroads use the tie spacing at the outside of the curve and the inside of the curve spacing stay within the limits and the ties are measured for spacing along the center line of the track.
Take care,
Jack
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