1. What are bridge bearings?

Bridge bearings are structural components installed between the bridge superstructure and substructure to transfer loads, allow controlled movement, and accommodate rotation caused by traffic, temperature changes, and seismic activity.

2. What types of bridge bearings are available?

Common types include elastomeric bearings, pot bearings, spherical bearings, and seismic isolation bearings. Each type is selected based on load capacity, movement requirements, and environmental conditions.

3. Where are bridge bearings used?

Bridge bearings are used in highway bridges, railway viaducts, overpasses, metro lines, and other infrastructure to maintain alignment and extend service life.

4. What is the function of seismic isolation bearings?

Seismic isolation bearings, such as lead rubber bearings (LRB) and friction pendulum bearings (FPB), reduce earthquake forces by allowing controlled horizontal movement and dissipating seismic energy.

5. What materials are bridge bearings made from?

Bridge bearings are typically made from natural rubber, neoprene, PTFE, stainless steel, and high-strength structural steel, depending on the application and performance requirements.

6. How do I choose the right bridge bearing?

Selection depends on factors such as vertical load, rotational requirements, horizontal movement range, environmental conditions, and seismic risk. Consulting with an engineer is recommended.

7. Do bridge bearings require maintenance?

Yes. Regular inspection and maintenance help ensure proper function, prevent damage, and extend the lifespan of the bearings.

8. Does Aohong provide customization?

Yes. Aohong manufactures standard and customized bridge bearings, seismic isolation bearings, rubber bearings, and expansion joints according to project specifications and international standards.