Regarding deck replacement of bridge structures, it is important to minimize total construction time and costs ensuring safety of it. Since cast-in-place concrete deck takes a long time for replacement, precast concrete deck system is considered as an effective alternative. Structural performance, economic feasibiltity and constructability of precast deck system are mostly affected by joint properties between precast deck panels.
To improve the joint properties, this research presents a new precast deck system of ribbed section joint with protruding lower concrete and verifies tits applicability through parameter tests.

• 신동호(대우건설기술연구원 선임연구원) | Shin, Dong Ho 교신저자
• 박세진(대우건설기술연구원 선임연구원) | Park, Se Jin
• 오현철(대우건설기술연구원 선임연구원) | Oh, Hyun Chul
• 김인규(대우건설기술연구원 수석연구원) | Kim, In Gyu
• 김영진(대우건설기술연구원 부원장) | Kim, Young Jin