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.

• 최현호(한국도로공사 도로교통연구원) | Choi Hyun Ho
• 남문석 | Nam Moon Suk
• 김홍삼 | Kim Hong Sam
• 김기환 | Kim Ki Hwan