The effect of climate change combined with clogged joints on bridge integrity in Canada

Abstract

This study examines the impact of climate change combined with clogged expansion joints on the integrity of four typical I- and box-girder bridges in Canada. The investigation considers 10 different climate regions across the country. The results reveal that the accumulation of debris, including compacted ice in expansion joints, poses a significant threat to bridge structures. Winnipeg and Saskatoon are identified as the most vulnerable regions to projected temperature changes with restricted movement, while Vancouver shows the lowest susceptibility. The study recommends classifying climate regions based on their vulnerability to climate change to facilitate resource allocation for bridge maintenance, rehabilitation, and replacement. Furthermore, a formula is introduced to assess and prioritize critical bridges in Canada’s extensive inventory, offering a systematic and objective approach to efficient resource allocation for bridge maintenance, repair, and rehabilitation.