Joint Bar

Bullet train rails are joined together by welding, but most rail for industry use is connected by means of a bolted splice (Fish Plate). There are usually 2/3/4 holes drilled in the end of the rails for these Bars. The hole spacing pattern is called the “drilling” and is measured from the end of the rail to the center of the first hole, and from the center of the first hole to the center of the second hole, etc. Thus a drilling might be 2-1/2” X 5” or 3-1/2” X 6” X 6”. There are 3 section types, Splice Bars, Angle Bars and Joint Bars. Some are compromised and some insulated.