​Introduction of Bridge expansion joints:

Bridge expansion joints are important components in the design and construction of bridges that allow for controlled movement and expansion of the bridge structure. They are essential for accommodating the natural thermal expansion and contraction of the bridge materials, as well as other movements caused by factors like traffic loads, wind, and seismic activity.

Bridge expansion joint: refers to the expansion joint between two beam ends, between beam ends and abutment, or on the hinge position of the bridge to meet the requirements of bridge deck deformation. In parallel and perpendicular to the bridge axis, firm and reliable, the vehicle should be smooth and outdated without jump and noise; and it can prevent rainwater and garbage soil from infiltration and blocking; the installation, inspection, maintenance and dirt elimination should be simple and convenient. At the expansion joint, the railing and the bridge deck pavement should be disconnected.

The selection of the appropriate expansion joint type depends on factors such as the bridge's size, expected movement, load requirements, and the local climate and environmental conditions.

Proper design, installation, and regular maintenance of bridge expansion joints are crucial to ensuring the long-term functionality, safety, and structural integrity of the entire bridge structure.

Common types of bridge expansion joints include:

• Finger joints
• Sliding plate joints
• Modular expansion joints
• Elastomeric expansion joints
• Compression seal joints

Features of Bridge expansion joints :

Waterproofing:

Expansion joints often incorporate sealing systems to prevent water, debris, and other environmental elements from penetrating the joint and potentially causing damage to the underlying bridge structure.

Durability and Maintenance:

Expansion joints are designed to withstand the wear and tear caused by vehicle traffic, weather conditions, and other environmental factors over the bridge's service life.

Evercross Steel Bridges Overview :