How much movement can a compression joint seal accommodate?

A compression joint seal is designed to accommodate the movement of bridge elements due to thermal expansion, contraction, and other forces. The typical capacity for these types of seals generally falls within a specific range based on engineering standards and design practices.

Choosing two inches indicates an understanding of common guidelines in bridge design. This measurement aligns with the expected movement that can occur without compromising the integrity of the joint seal or the overall structure. Compression seals need to effectively maintain a barrier to water and debris while allowing for this movement, and two inches is a practical standard for many bridge designs.

While other measurements may be applicable in different contexts or specific designs, two inches is a widely accepted figure that meets the needs of many infrastructure applications, balancing flexibility with the necessity of maintaining structural performance and protection against environmental factors.