BRIDGE EXPANSION JOINTS AND JOINT GUARD ANGLES. STATE OF THE ART. FINAL REPORT

This report is a state-of-the-art report on Bridge Expansion Joints and Joint Guard Angles. The report is divided into five Chapters and an Appendix. Chapter 1 is an overview of problems with the bridge expansion joints. Classification, advantages and disadvantages of expansion joints are discussed in Chapter 2. Chapter 3 is devoted to current practices in Arizona in terms of types of joints. In Chapter 4, practices in the United States are summarized using the information supplied by different state highway agencies. The research findings and general practices are analyzed for further discussions. The last chapter contains findings, recommendations, and short-term and long-term research topics with emphasis on design and construction of new joints, maintenance requirements, and possible retrofitting of old and damaged joints. An Appendix is included to give more details on ADOT's design and specification standards.