고속도로 교량의 교대 협착 현황 및 대응방안

Recently, due to record breaking temperature and other factors, bridge expansion joint closing, damage of shoe, narrow distance between abutment and deck is occurred frequently. Therefore, traffic flow was interrupted and vehicle damage was occurred because of expansion joint stick out. In this study, in order to reduce damage of expansion joint and other bridge facilities and to ensure safety of infrastructure, field survey and consulting works are performed for 91 bridges that distance between expansion joint is closed. Based on this study, cause of expansion joint closing are analyzed and maintenance strategy is suggested.