A track joint, commonly known as a rail joint, is a vital component of a railroad track system used to connect two adjacent sections of steel rails.
Definition and Purpose
At its core, a rail joint is a device that connects two pieces of rail on a railroad track. The primary purpose of a track joint is to maintain the continuity and alignment of the rails, allowing trains to traverse the track smoothly and safely from one rail segment to the next.
Structure and Functionality
The typical structure and method of connection for a bolted track joint, as described, involves a specific type of steel component. This is typically a piece of flat steel with two holes drilled at each end. This component is often referred to as a joint bar or fishplate.
The connection is made by positioning the joint bar against the sides of the rail ends where they meet. The holes correspond to ones that are drilled into the ends of the steel rails. Bolts are then passed through these aligned holes in both the joint bar and the rail ends and are secured with nuts. The joint bar is effectively bolted between the two rails to connect and hold them together.
Key Features of a Bolted Rail Joint
- Connects Rail Sections: Provides the necessary link to join lengths of rail.
- Material: Usually made from durable, high-strength steel.
- Design: Features precisely drilled holes matching those in the rail ends.
- Method: Secured via bolts, washers, and nuts tightened through the joint bar and rail.
- Location: Found at the points where individual rail segments meet on the track.
This bolted configuration ensures the rails are mechanically linked, providing structural integrity to the track while managing forces exerted by passing trains.
