현장 배근이 LB-DECK 패널의 구조거동에 미치는 영향
A Study on the Structural Behavior of LB-DECK Panel Considering Rebar-Arrangement in Site
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초록
The objective of this study is to verify whether the composite action is sufficiently strong to withstand at the interface and the structural behavior of LB-DECK panel with field concrete slab strengthened with main reinforcing bars. Static and fatigue tests are performed for LB-DECK panels with varied shapes and amounts of rebars, and the results are compared with those of field concrete panel(FCP). The test results indicate that the LB-DECK panel with 1.5 times of more rebars inside significantly increase the overall stiffness. LB-DECK penel usually shows on average 52.1 percent of improved stiffness compared with the FCP. The fatigue test results also show that the LB-DECK panel can withstand two-million cycles of repeated loads without any damage.
Abstract
The objective of this study is to verify whether the composite action is sufficiently strong to withstand at the interface and the structural behavior of LB-DECK panel with field concrete slab strengthened with main reinforcing bars. Static and fatigue tests are performed for LB-DECK panels with varied shapes and amounts of rebars, and the results are compared with those of field concrete panel(FCP). The test results indicate that the LB-DECK panel with 1.5 times of more rebars inside significantly increase the overall stiffness. LB-DECK penel usually shows on average 52.1 percent of improved stiffness compared with the FCP. The fatigue test results also show that the LB-DECK panel can withstand two-million cycles of repeated loads without any damage.
참고문헌 (5)
- 윤석구, "교량바닥판의 등가축중 반복횟수의 평가", 대한토목학회 논문집A, 24(2004), pp.311~319 (2004), 대한토목학회
- 최은수, "교량 바닥판 건설용 프리캐스트 콘크리트 패널의 거동특성", 대한토목학회 논문집A, 25(2A), pp.395~404 (2005), 대한토목학회
- 노병철, "LB-DECK의 Lattice bar 높이 변화에 따른 합성거동 연구", 대한토목학회 논문집A, 27(2A), pp.193~200 (2007), 대한토목학회
- 윤석구, "LB-DECK를 이용한 철근콘크리트 바닥판의 펀칭전단강도", 2006년 봄학술발표회 논문집, 18(1), pp.390~393 (2006), 한국콘크리트학회
- 건설교통부, "도로교설계기준", 한국도로교통협회, ~ (2000)