Bridge expansion joints are among the most vulnerable components of any bridge structure. They endure constant traffic loading, thermal expansion and contraction, and exposure to water, salts, and debris. When they fail, the consequences can be severe—water leaks through joints can corrode steel reinforcement, deteriorate concrete, and compromise the structural integrity of the entire bridge. […]

Bridge expansion joints are critical components of modern bridge infrastructure. They enable relative displacements of the superstructure spans caused by temperature variations, traffic loads, creep, shrinkage, and seismic activity. Positioned at the ends of bridges and at intervals along very long structures, these devices bridge the gap between superstructure sections while ensuring safe and uninterrupted