A belt conveyor bearing is a type of bridge bearing product, made by embedding, bonding, and vulcanizing multiple layers of natural rubber and thin steel plates. This type of rubber bearing has sufficient vertical stiffness to withstand vertical loads and reliably transfer the pressure of the superstructure to the piers and abutments. Good elasticity to adapt to the rotation of the beam end ;It has a large shear deformation to meet the horizontal displacement of the superstructure.

Belt conveyor bearings are a common type of bridge bearing. Other commonly used bridge bearing types include pot-type rubber bearings and PTFE belt conveyor bearings, but belt conveyor bearings are more widely used. So why are belt conveyor bearings so widely used? ?

Belt conveyor bearings are made of multiple layers of rubber plates and thin steel plates vulcanized and bonded together, with sufficient vertical stiffness to reliably transfer the reaction force of the superstructure to the piers and abutments. Good elasticity to adapt to the rotation of the beam end ;It also has a large shear deformation capacity to meet the horizontal displacement of the superstructure.

Belt conveyor bearings are a new type of bridge bearing with advantages such as simple structure, easy manufacturing, low steel consumption, low cost, and easy installation. At present, it has been widely used in bridge engineering at home and abroad. It also has excellent technical performance, easy replacement, buffering and vibration isolation characteristics. Therefore, it is very popular in the bridge industry.

Belt conveyor bearings use the elastic compression of rubber to achieve vertical rotation of the beam, and ensure the horizontal displacement of the beam through the shear deformation of the rubber block. Therefore, there are no fixed bearings and movable bearings. Since its horizontal displacement is achieved through the shear deformation of the rubber, the allowable horizontal displacement is small, suitable for small and medium-span roads, urban bridges and railway bridges.

Belt conveyor bearings are common products in small and medium-sized highway bridges and are divided into ordinary plate type and PTFE. Ordinary bridge bearings are suitable for bridges with spans less than 30m and small displacement. Different plane shapes are suitable for different bridge span structures, and rectangular bearings are used for orthogonal bridges.

For PTFE belt conveyor bearings, they are suitable for large-displacement bridges with large spans, multi-span continuous, simply supported beam continuous plates, etc. In continuous beam top pushing and T-beam lateral movement can also be used as sliders.

The performance of belt conveyor bearings is directly related to the safe use of bridges. If damaged, it needs to be replaced in time. The method of replacing highway bridge belt conveyor bearings without interrupting traffic is simple in construction and has accumulated valuable experience for the future treatment of bridge diseases. Construction teams can be arranged at any time to repair and replace belt conveyor bearings, reducing maintenance costs during bridge operation, avoiding traffic jams, and extending service life.