Abstract: A uni-directional and multi-directional mechanical bearing suitable for supporting structures such as bridges comprises a removable cassette comprising a sliding layer composed of a low friction material such as PTFE. The removable cassette allows for the replacement of the sliding layer without needing to remove or replace the entire bearing. The bearing can be part of a kit that includes a replacement cassette having a varying thickness that corresponds to the uneven wear on the sliding layer of the removable cassette and compensates for an eccentric pressure on the bearing when under load.

Abstract: A roadway expansion joint apparatus comprises at least one finger joint that extends across an expansion gap. Each finger joint comprises a base plate, a finger unit, a pivot and a cantilever support. The finger unit comprises a body and at least one unsupported finger extending longitudinally from a distal end of the body. The pivot pivotally couples the finger unit to the base plate about a vertical pivot axis. The cantilever support is located at or between the pivot and a proximal end of the finger unit; the cantilever support allows pivoting of the finger unit relative to the base plate about a vertical pivot axis and impedes pivoting of the finger unit relative to the base plate about a horizontal axis, thereby cantilevering the finger joint to the base plate at the cantilever support.

Abstract: A uni-directional and multi-directional mechanical bearing suitable for supporting structures such as bridges comprises a removable cassette comprising a sliding layer composed of a low friction material such as PTFE. The removable cassette allows for the replacement of the sliding layer without needing to remove or replace the entire bearing. The bearing can be part of a kit that includes a replacement cassette having a varying thickness that corresponds to the uneven wear on the sliding layer of the removable cassette and compensates for an eccentric pressure on the bearing when under load.

Abstract: A roadway expansion joint apparatus comprises at least one finger joint that extends across an expansion gap. Each finger joint comprises a base plate, a finger unit, a pivot and a cantilever support. The finger unit comprises a body and at least one unsupported finger extending longitudinally from a distal end of the body. The pivot pivotally couples the finger unit to the base plate about a vertical pivot axis. The cantilever support is located at or between the pivot and a proximal end of the finger unit; the cantilever support allows pivoting of the finger unit relative to the base plate about a vertical pivot axis and impedes pivoting of the finger unit relative to the base plate about a horizontal axis, thereby cantilevering the finger joint to the base plate at the cantilever support.