PTFE Rubber Bearing Plates Applied in Bridge Engineering Industry

 The PTFE rubber bearing plates have the characteristics of simple structure, low price, no maintenance, easy replacement, low building height, etc., so it is very popular and had been widely used in the field of the bridge engineering industry.

The PTFE rubber bearing plate is a layer of 1.5mm-3mm thick PTFE plate glued on the surface of the plate rubber bearing. In addition to the vertical rigidity and elastic deformation of ordinary plate rubber bearings, the ability to withstand vertical loads and adapt to beam end rotation, the use of low friction coefficient (μf≤0.08) between the PTFE plate and the stainless steel plate can make the bridge superstructure The horizontal displacement is not restricted.

Large-span bridges with spans greater than 30 meters, multi-span continuous beam bridges can be used as movable supports; continuous beam push, T-beam lateral movement and large equipment slip can be used as sliders.​ Due to the low coefficient of friction (μ≤0.03) between the PTFE plate and the stainless steel plate at the bottom of the beam, the horizontal displacement of the bridge superstructure can be unrestricted.

Advantages of PTFE rubber bearing plates:

1. Simple structure, convenient processing, less steel consumption, low cost, and convenient installation;

2. Reliable working performance, good elastic damping, can absorb the deformation of the upper structure in all directions, reduce the impact of dynamic loads on the bridge span structure and piers, and improve the bridge’s mechanical performance;

3. It has sufficient vertical stiffness to withstand vertical loads and has good elasticity to adapt to the rotation of the beam end; and has a large shear deformation to meet the horizontal displacement of the superstructure.

4. The PTFE rubber bearing plates are convenient to install, and directionality can be ignored;

5. The PTFE rubber bearing pads/plates hardly needs regular maintenance, reducing the maintenance workload;