摘要: |
Bridge deck expansion joints are used to allow for movement of the bridge deck due to thermal expansion, dynamics loading, and other factors. More recently, expansion joints have also been utilized to prevent the passage of winter de-icing chemicals and other corrosives applied to bridge decks from penetrating and damaging substructure components of the bridge. Expansion joints are often one of the first components of a bridge to fail and repairing or replacing expansion joints are essential to extending the life of any bridge. Fail bridge substructures including rust formation on metal bearings as well as increased spilling on precast beam ends, concrete abutments, and concrete piers. To prevent further bridge damage can be due to increased traffic loading, component fatigue, low quality work, or several other factors. Joint failure can lead to increased damage to, joints are often repaired or replaced. |