What are the key components evaluated during bearing condition assessments?

During bearing condition assessments, key components evaluated include the bearing material itself (e.g., elastomer, steel), the bearing's anchorage to the substructure and superstructure, and the overall alignment and movement capability of the bearing. For elastomeric bearings, inspectors look for signs of cracking, bulging, delamination, hardening, or excessive deformation. For steel bearings, corrosion, wear, and distortion are primary concerns. The anchorage is inspected for signs of corrosion, cracking, or loosening of bolts or other fasteners. The bearing's alignment and movement are assessed to ensure it is properly positioned and able to accommodate the expected thermal and rotational movements without undue restraint. Any signs of distress in these components indicate potential problems that could affect the bearing's performance and the overall structural integrity of the bridge.