Upper seat plate
Composed of top plate and stainless steel plate, it is fixed to the pier by anchor bolts to ensure the stability of the support.
The combination of stainless steel plate and polytetrafluoroethylene plate achieves low friction horizontal displacement.
Lower seat plate
Includes polytetrafluoroethylene plate, intermediate steel plate, sealing ring, rubber block, and bottom basin.
The polytetrafluoroethylene plate provides a sliding surface, rubber blocks cushion deformation, and the bottom basin is fixed by anchor bolts.
Rubber sheet
Made of high-quality rubber material, it has elasticity, wear resistance, and aging resistance.
Generate reaction force under triaxial stress state, bear vertical load and allow rotation.
Adjustment mechanism
Realize height adjustment through hydraulic or mechanical means to meet the adjustment needs of bridges at different stages.
Key points for replacement
Selection matching: The new bearings need to match the bridge design load, displacement requirements, and environmental conditions.
Installation accuracy: The positional deviation should be controlled within 5mm to avoid local stress concentration.
Material properties: The rubber sheet needs to undergo aging resistance testing to ensure long-term use.