Where are the main applications of plate rubber bearings for highway bridges
Plate rubber bearings for highway bridges are mainly used in the following areas:
1. Between the beam body and the bridge piers and abutments: This is the most common application location for plate rubber bearings. In a simply supported beam bridge, supports are located at both ends of the beam, transmitting the load of the beam to the pier or abutment. In continuous beam bridges, in addition to
Plate rubber bearings for highway bridges are mainly used in the following areas:
1. Between the beam body and the bridge piers and abutments: This is the most common application location for plate rubber bearings. In a simply supported beam bridge, supports are located at both ends of the beam, transmitting the load of the beam to the pier or abutment. In continuous beam bridges, in addition to installing supports at the beam ends, supports are also installed on the middle piers to support the beam and adapt to its deformation. For example, plate rubber bearings are usually used between the beam and pier of urban elevated bridges, allowing the beam to expand and rotate freely under factors such as temperature changes and vehicle loads, while reliably transferring the weight of the bridge to the pier.
2. Bridge deck expansion joints: Although bridge deck expansion joints are mainly used to adapt to the expansion deformation of bridge structures, plate rubber bearings are also installed on both sides of the expansion joints. These supports can serve to buffer vehicle loads, reduce impacts, and ensure that the bridge deck on both sides of the expansion joint can move relatively freely, preventing damage to the bridge deck due to deformation incompatibility at the expansion joint.
3. In some special bridge structures：such as cable-stayed bridges and suspension bridges, plate rubber bearings are sometimes used at the connection between the anchorage and the main beam. In cable-stayed bridges, supports can help the main beam adapt to deformations caused by wind loads, seismic loads, etc; In suspension bridges, it can be used to adjust the force and deformation relationship between the main beam and the anchorage, improving the overall stability and safety of the bridge.
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