프리캐스트 바닥판용 클램프 조인트의 정적내하력
Static Strength of Cramp Joint at Precast Highway Deck Slabs
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초록
A new jointing method using steel cramps with a unique configuration was developed for the field joint of precast deck slabs of highway bridges. In this jointing method, the looped distribution bars are connected by the cramps to the main reinforcements. Therefore, the joint can transfer the bending moment and shearing force through the interlocking effect caused by the cramps, and it is both excellent in installation on-site and economical compared with the loop joint currently in use. In order to confirm the bending and shear capacities and to clarify the failure mechanism of the joint, a series of static loading tests were carried out. From the results of these experimental studies, it was clarified that the cramp joint has enough load carrying capacity being equivalent to the loop joint.
Abstract
A new jointing method using steel cramps with a unique configuration was developed for the field joint of precast deck slabs of highway bridges. In this jointing method, the looped distribution bars are connected by the cramps to the main reinforcements. Therefore, the joint can transfer the bending moment and shearing force through the interlocking effect caused by the cramps, and it is both excellent in installation on-site and economical compared with the loop joint currently in use. In order to confirm the bending and shear capacities and to clarify the failure mechanism of the joint, a series of static loading tests were carried out. From the results of these experimental studies, it was clarified that the cramp joint has enough load carrying capacity being equivalent to the loop joint.
참고문헌 (9)
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- 대우건설, "프리캐스트 콘크리트 교량 바닥판의 개발 및 실용화" (1998)
- Kim, Y.C, "Experimental Study on the Shear Strength of Shear Key Joints of Precast Slab", pp.829~834 (1999)
- Kubo, K, "A jointing method of precast deck slab of highway bridges using cramps" (1999)
- JSCE, "General specifications of concrete, design" (1996)
- Matsui, "Technology Development for Bridge Deck - Innovations on Durability and Construction", 31(8), pp.84~94 (1997)
- Leonhardt, "筋コンクリトの配筋" (1985)
- Kim, Y.C, "Study on Mechanical Characteristics and Fatigue Durability of Joint of Precast Decks" (2001), Osaka University