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Title |
The Experimental Study on Transverse Field Joint Method of Precast Road Deck Slab of Double Deck Tunnel in Great Depth
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Authors |
이두성(Doo-Sung Lee) ; 김보연(Bo-Yeon Kim) ; 배철기(Chul-Gi Bae) ; 허재훈(Jae-Hun Hur) |
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DOI |
https://doi.org/10.4334/JKCI.2017.29.1.023 |
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Keywords |
복층터널 ; 중간슬래브 ; 프리캐스트 ; 이음부 ; 정재하실험 double deck tunnel ; middle slab ; precast ; field segmentconnection ; static loading test |
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Abstract |
The joints between precast PSC slabs of the intermediate road slab in double deck tunnel are inevitably generated in the road traffic vehicle traveling direction. Therefore, it is important to make the behavior of parts on the joint in one piece. The imtermediate road slab system of double deck tunnel in great depth proposed in this study will be constructed with precast PSC slab in order to minimize the construction period. And the joint connection between the precast slab has been developed in two methods: the ‘Transverse tendon reinforcement method’ and ‘High strength bolts connection method’. Also, the experiments were performed for the full scale model in order to evaluate the performance of the intermediate road deck slab with two type joints systems, the structural stability was verified through the F.E.M analsysis. The results of static loading test and F.E.M analysis investigated a very stable behavior of intermediate road deck slab in double deck tunnel applying the joint methods developed in this study, in the cracks and deflections to satisfy the design standards of Highway Roads Bridges (2011), it was determined that there is no problem even servicebility.
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