Rail expansion - Revision history

Dnevil at 14:26, 23 September 2024

2024-09-23T14:26:43Z

← Older revision		Revision as of 09:26, 23 September 2024
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	* [http://millcreekcentral.com/TrackStandards/TrackStandards.htm "Track Standards: Determination of Rail Joint Gap", <i>Mill Creek Central Railroad</i>]		* [http://millcreekcentral.com/TrackStandards/TrackStandards.htm "Track Standards: Determination of Rail Joint Gap", <i>Mill Creek Central Railroad</i>]
	* [[Rail Expansion & Rail Joint Design]]		* [[Rail Expansion & Rail Joint Design]]

			[[File:RailExpansionGraph KenScheer.png\|thumb\|center\|400px\|Rail Expansion Graph by Ken Scheer]]

	== Rail creep ==		== Rail creep ==

Dnevil at 14:26, 23 September 2024

2024-09-23T14:26:10Z

← Older revision		Revision as of 09:26, 23 September 2024
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	\|}		\|}
	</center>		</center>

	* [http://ibls.org/files/2015/RailGapStandards.xlsx RailGapStandards.xlsx - Download and modify parameters as needed for your pike.]

	See also:		See also:

			* [http://ibls.org/files/2015/RailGapStandards.xlsx RailGapStandards.xlsx - Download and modify parameters as needed for your pike.]
	* [http://millcreekcentral.com/TrackStandards/TrackStandards.htm "Track Standards: Determination of Rail Joint Gap", <i>Mill Creek Central Railroad</i>]		* [http://millcreekcentral.com/TrackStandards/TrackStandards.htm "Track Standards: Determination of Rail Joint Gap", <i>Mill Creek Central Railroad</i>]
	* [[Rail Expansion & Rail Joint Design]]		* [[Rail Expansion & Rail Joint Design]]

Dnevil at 14:25, 23 September 2024

2024-09-23T14:25:46Z

← Older revision		Revision as of 09:25, 23 September 2024
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	* [http://ibls.org/files/2015/RailGapStandards.xlsx RailGapStandards.xlsx - Download and modify parameters as needed for your pike.]		* [http://ibls.org/files/2015/RailGapStandards.xlsx RailGapStandards.xlsx - Download and modify parameters as needed for your pike.]

	* See also [http://millcreekcentral.com/TrackStandards/TrackStandards.htm "Track Standards: Determination of Rail Joint Gap", <i>Mill Creek Central Railroad</i>]		See also:

			* [http://millcreekcentral.com/TrackStandards/TrackStandards.htm "Track Standards: Determination of Rail Joint Gap", <i>Mill Creek Central Railroad</i>]
			* [[Rail Expansion & Rail Joint Design]]

	== Rail creep ==		== Rail creep ==
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	: Would add....rail creep and rail expansion/contraction due to temperature variations are two different things. Carl B.		: Would add....rail creep and rail expansion/contraction due to temperature variations are two different things. Carl B.

	~~== See also ==~~

	* [[Rail Expansion & Rail Joint Design]]

Dnevil: /* Rail creep */

2024-09-23T14:21:09Z

Rail creep

← Older revision		Revision as of 09:21, 23 September 2024
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	: Would add....rail creep and rail expansion/contraction due to temperature variations are two different things. Carl B.		: Would add....rail creep and rail expansion/contraction due to temperature variations are two different things. Carl B.

			== See also ==

			* [[Rail Expansion & Rail Joint Design]]

Dnevil at 13:54, 25 July 2019

2019-07-25T13:54:29Z

← Older revision		Revision as of 08:54, 25 July 2019
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	[[Category:Definitions]]		[[Category:Definitions]]
			[[Category:Standards]]

	[https://en.wikipedia.org/wiki/Thermal_expansion#Examples_and_applications Thermal expansion] can cause track misalignment, typically referred to as "sun kink". Track must be laid with gaps between adjoining rails to reduce the likelihood of sun kinks.		[https://en.wikipedia.org/wiki/Thermal_expansion#Examples_and_applications Thermal expansion] can cause track misalignment, typically referred to as "sun kink". Track must be laid with gaps between adjoining rails to reduce the likelihood of sun kinks.

Dnevil at 13:52, 25 July 2019

2019-07-25T13:52:47Z

← Older revision		Revision as of 08:52, 25 July 2019
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	[[Category:Definitions]]		[[Category:Definitions]]

			[https://en.wikipedia.org/wiki/Thermal_expansion#Examples_and_applications Thermal expansion] can cause track misalignment, typically referred to as "sun kink". Track must be laid with gaps between adjoining rails to reduce the likelihood of sun kinks.


			The table below provides recommended gaps for the ambient temperature when the track is laid. Gaps are indicated in fractions of an inch and temperature is in Fahrenheit. Note that the scale of the rail has no bearing on the size of the gap required.

			<center>
			{\| class="wikitable"
			\|+ IBLS Rail Gap Standard
			! scope="col"\|Rail Type
			! scope="col"\|Rail Length (inches)
			! scope="col"\|0°F
			! scope="col"\|20°F
			! scope="col"\|40°F
			! scope="col"\|60°F
			! scope="col"\|80°F
			! scope="col"\|100°F
			! scope="col"\|120°F
			! scope="col"\|140°F
			\|-
			\|Aluminum (6063-T5)
			\|120
			\|1/4
			\|3/16
			\|5/32
			\|1/8
			\|3/32
			\|1/16
			\|1/32
			\|no gap
			\|-
			\|Aluminum (6061-T5)
			\|120
			\|1/4
			\|1/5
			\|1/6
			\|1/8
			\|1/10
			\|1/16
			\|1/32
			\|no gap
			\|-
			\|Steel
			\|120
			\|1/8
			\|1/10
			\|1/13
			\|1/16
			\|1/20
			\|1/32
			\|1/64
			\|no gap
			\|-
			\|Aluminum (6063-T5)
			\|240
			\|2/5
			\|3/8
			\|5/16
			\|1/4
			\|3/16
			\|1/8
			\|1/16
			\|no gap
			\|-
			\|Aluminum (6061-T5)
			\|240
			\|1/2
			\|5/13
			\|1/3
			\|1/4
			\|1/5
			\|1/8
			\|1/16
			\|no gap
			\|-
			\|Steel
			\|240
			\|1/4
			\|1/5
			\|1/6
			\|1/8
			\|1/10
			\|1/16
			\|1/32
			\|no gap

			\|}
			</center>

			* [http://ibls.org/files/2015/RailGapStandards.xlsx RailGapStandards.xlsx - Download and modify parameters as needed for your pike.]

			* See also [http://millcreekcentral.com/TrackStandards/TrackStandards.htm "Track Standards: Determination of Rail Joint Gap", <i>Mill Creek Central Railroad</i>]

	== Rail creep ==		== Rail creep ==

Dnevil: Created page with "Category:Definitions == Rail creep == From [https://www.chaski.org/homemachinist/viewtopic.php?f=33&t=108475 Chaski.org]: : Many don't realize there's "rail cree..."

2019-07-25T13:51:00Z

Created page with "Category:Definitions == Rail creep == From [https://www.chaski.org/homemachinist/viewtopic.php?f=33&t=108475 <i>Chaski.org</i>]: : Many don't realize there's "rail cree..."

New page

[[Category:Definitions]]

== Rail creep ==

From [https://www.chaski.org/homemachinist/viewtopic.php?f=33&t=108475 <i>Chaski.org</i>]:

: Many don't realize there's "rail creep" in our hobby rails as well. Seen all too often where rail gaps near the bottom of a grade close up over time. Even had one guy complain there were no rail gaps. Well, the rail gaps were there when the track was installed...but closed up over time.

: Trains traveling downgrade are braking...and pushing the rail in front of the train. Trains traveling upgrade...are trying to pull the rail under the train. There's an old joke about the track gang foreman removing a section of rail at the bottom of the hill...and moving that back to the top of the hill!

: Would add....rail creep and rail expansion/contraction due to temperature variations are two different things. Carl B.