Classification by Material
Wooden Ties: They are made from timber, wooden ties offer good elasticity, ease of processing, and easy maintenance. However, their drawbacks include a relatively short lifespan, the need for regular replacement, and susceptibility to corrosion and insect damage.
Concrete Ties: They are made from concrete, these ties have high strength, good durability, and a long service life. Concrete ties are widely used in modern railway systems, especially in high-speed and heavy-duty railways.
Steel Ties: They are made from steel, these ties offer high strength and load-bearing capacity. However, they are heavier, more expensive, and prone to corrosion and wear, making them less common in modern railway systems.
Composite Material Ties: They are made from a combination of materials such as resin, fiberglass, and others, composite ties are lightweight, strong, and resistant to corrosion. However, their higher cost can be a limiting factor.
Classification by Material By Purpose of Use
Ordinary Ties: They are used in general railway lines, these ties bear the train load and help maintain the stability of track geometry.
Switch Ties: They are used in railway switch areas, these ties have special shapes and sizes to accommodate the switch construction and the unique requirements when trains pass through.
Bridge Ties: They are used on railway bridges, bridge ties must support significant loads and vibrations while maintaining durability and stability.
Classification By Structural Type
Solid Ties: The parts of the tie are integrated into one piece, offering simplicity in structure and ease of manufacture. However, solid ties can be difficult to repair or replace.
Modular Ties: Composed of several components, modular ties can be disassembled and replaced as needed. These ties offer easy maintenance and replacement.
Half Ties: A type of tie that combines features of both solid and modular ties, with some parts integrated and others separable.
Wide Ties: These ties have a larger width, which increases lateral stability of the track. They are often used in high-speed and heavy-duty railways.
Classification By Structure and Installation Method
Lateral Ties: These ties are laid perpendicular to the track direction and represent the traditional installation method.
Longitudinal Ties: These ties are laid parallel to the track direction, which reduces the number of seams between ties and improves track smoothness.
Short Ties: These ties are shorter in length and are typically used in continuous ballast beds or special track structures.
