Splice Bars & Curved Rails

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SPLICE BARS, CURVED RAILSSplice BarsOften rails are joined together by welding, but most rail for industry use is connected by means of a bolted splice. There are usually two or three holes drilled in the end of the rails for these splices. The hole spacing pattern is called the fidrilling" and is measured from the end of the rail to the center of the ˜rst hole, and from the center of the ˜rst hole to the center of the second hole, etc. Thus a drilling might be 2-1/2 inches X 5 inches or 3-1/2 inches X 6 inches X 6 inches .The standard drillings for tee rails and corresponding splice bars provide for a 1/8 inches gap between rail ends. This is standard construction for railroad track and light crane service. For best service in bolted splices for rails in crane service, it is recommended that fitight joints" be stipulated. (See page II-1 for a description of a tight joint.) Although tight joints are not standard for tee rails, Harmer Steel can supply tight joints in the ASCE sections from 30-lb. to 85-lb.The term fisplice bar" refers to only one type of connector bar and frequently is confused with other types. The drawings below provide clari˜cation of the proper term for each type of connector bar. Splice Bars Angle Bars Joint Bars Ball Out Ball In Ball Up Specify Inside Diameter Specify Outside Diameter Specify Centerline Diameter of HeadCurved RailCurving of tee rails and crane rails is available in a variety of ways to suit various applications.