Quantcast Welded Crane Rail Joints

 
  
 
railroad track, the railroad rail shall be gaged from the crane
rail based on standard gage requirements in accordance with
Section 05650 RAILROAD TRACK AND ACCESSORIES.
3.2.2
Welded Crane Rail Joints
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NOTE:  Welded rail joints are preferred for crane
rail except at connections between rail and rail
fittings such as switches and frogs where bolted
joints are recommended.  The project drawings shall
indicate each joint type (bolted and/or welded).
Welded connections between carbon steel rail and
rail fittings fabricated from carbon steel, if
desired, may be accomplished using either of the
methods identified in paragraph "Welded Crane Rail
Joints."  The designer shall determine the welding
method(s) to be used and project drawings shall show
location of each welding method.  Welded connections
between carbon steel rail and cast manganese steel
are not recommended.  However, if the activity
requires a dissimilar metal welded connection such
as this, the cast manganese stub rail end section
should be prepared for welding in accordance with
Sketch 14606-1.  The manual shielded arc welding
method in accordance with paragraph "Manual
Shielded-arc Welding Method" and electrodes in
accordance with paragraph "Electrodes" should be
used.  Thermite method is not acceptable for welding
dissimilar metal.
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Weld crane rail joints [, except those joints at fittings].  The welding
together of rails which have been bored for bolted joints will not be
permitted.  Clean rails of foreign substances prior to welding.  [Welded
compromise joints shall be by the thermite method.]  Align and weld rail in
accordance with the recommendations and specifications of the manufacturer
and supplier of the particular welding process used.  Do not weld when the
rail temperature is lower than that recommended for the welding method
used.  Use the following method[s].
3.2.2.1
Thermite Method
In accordance with Section 05652N WELDING CRANE AND RAILROAD RAIL THERMITE
METHOD.
3.2.2.2
Manual Shielded-Arc Welding Method
AWS D1.1/D1.1M and the following:
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NOTE:  Regarding the text below, when manual
shielded-arc welding method is specified, rail ends
shall be prepared in accordance with Sketch No.
NFGS-14606-1.  Show sketch information on the
project drawings.
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a.
Prepare rail end as indicated and as specified herein.
Bevel ends
SECTION 14606N
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