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Title |
Fatigue Performance of Precast Decks using Ribbed Loop Joints in a Two-Girder Continuous Composite Bridge
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Authors |
이한주(Han-Joo Lee) ; 여운영(Woon-Young Yeo) ; 신동호(Dong-Ho Shin) ; 김인규(In-Gyu Kim) ; 박세진(Se-Jin Park) |
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DOI |
https://doi.org/10.11112/jksmi.2019.23.1.85 |
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Keywords |
프리캐스트 바닥판 ; 연속합성형 교량 ; 요철형 루프이음 ; 피로성능 Precast decks ; Continuous composite bridge ; Ribbed loop joints ; Fatigue performance |
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Abstract |
Structural performance and serviceability of precast deck system are mostly determined by connection details between precast decks. Particularly, since the bridge deck is under repeated loads such as traffic loads, fatigue behavior and performance of joints should be investigated. In this study, a two-girder continuous composite bridge specimen was fabricated using the asymmetric ribbed loop joints, and static and fatigue load tests were conducted to evaluate the structural behavior and the crack pattern of the bridge deck. From the test results, the proposed precast deck system resulted in sufficient fatigue performance and failure strength. Therefore, the proposed precast deck system can be applied to the connection part of precast decks effectively.
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