http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
박성재(Park Sungjae),김용재(Kim Yongjae),박명균(Park Myounggyun),전종수(Jeon Jongsu),이두화(Lee Duhwa),박만호(Park Manho) 한국철도학회 2009 한국철도학회 세미나자료 Vol.2009 No.5
본 연구의 선행기술조사결과 플로팅궤도 슬래브에는 dowel bar 등의 별도의 슬래브 연결부 보강이 없었다. 본 연구모델에 비해 선행기술조사 대상 슬래브의 연장이 매우 짧으며, 긴 지간의 슬래브에 연결부에 대한 보강이 없다면 단부에서의 단차에 의해 슬래브의 파괴가 예상된다. 따라서 dowel bar 등의 추가적인 보강이 요구된다. 본 연구에서는 dowel bar의 일반적인 특성과 국내외 dowel bar에 대한 선행기술에 대하여 조사함으로써, 추후 수행될 해석연구의 자료를 확보하고자 하여 그 적용가능성을 검토하고자 하였다. From the result of preceding study, there is no reinforcement such as dowel bar or etc. in joint system of floating slab. Length of floating slab in preceding study is short than one of this study. If there is no reinforcement in the joint of long slab span, fracture of slab is predicted by difference between two slabs. Therefore using of dowel bar is demanded. In this study, General characteristic and preceding technology of dowel bar is researched for data of analysis study. And it is considered application of dowel bar in floating slab system.
CFTA 거더교의 시공단계에 따른 주요 부재의 응력 변화
박성재(Park, Sungjae),전종수(Jeon, Jong-Su),김용재(Kim, Yongjae),박명균(Park, Myounggyun) 한국구조물진단유지관리학회 2009 한국구조물진단학회 학술발표회논문집 Vol.2009 No.1
The CFTA girder has a good advantageous structural system such as reducing the moment by way of arch shape and prestressing force and inducing compressive force to compensate for tensile stress. In this study, Seven steps were to be considered in the process of construction Sequence analysis. For the test result of construction Sequence analysis, all steps stress of CFTA members are in a permissible range of allowable stress
CFTA 거더교의 시공단계에 따른 주요 부재의 응력 변화
박성재 ( Park Sungjae ),전종수 ( Jeon Jong-su ),김용재 ( Kim Yongjae ),박명균 ( Park Myounggyun ) 한국구조물진단유지관리공학회 2009 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.13 No.1
The CFTA girder has a good advantageous structural system such as reducing the moment by way of arch shape and prestressing force and inducing compressive force to compensate for tensile stress. In this study, Seven steps were to be considered in the process of construction Sequence analysis. For the test result of construction Sequence analysis, all steps stress of CFTA members are in a permissible range of allowable stress.
FRP Rebar를 사용한 콘크리트 보의 효율적인 휨 설계를 위한 휨 강도감소계수 보정
심종성 ( Sim Jongsung ),박철우 ( Park Cheolwoo ),박명균 ( Park Myounggyun ),박성재 ( Park Sungjae ),김용재 ( Kim Yongjae ),박지수 ( Park Jisoo ) 한국구조물진단유지관리공학회 2008 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.12 No.2
If the flexural member of concrete is designed using the FRP rebar, suddenly brittleness destruction resulted from the fracture of FRP rebar is generated in the extreme situation because of brittleness characteristics of FRP rebar and concrete when designed to be less than balanced reinforcement ratio, so it is recommended to design the flexural member of concrete reinforced with FRP rebar to be more than balanced reinforcement ratio. In ACI 440.1R-06 proposes the different flexural strength reduction factor according to destructive form of concrete flexural member reinforced with FRP rebar. However, ACI 440.1R-06 applies the same flexural strength reduction factor to all FRP rebar made of diverse materials. If the same flexural strength reduction factor is applied to all FRP rebars, effect of increasing the reinforcement ratio and selection of FRP rebar will be considerably limited. In this regard, we are to propose the formula to calculate of flexural strength reduction factor in consideration of change in characteristics of FRP rebar through the reliability analysis in this paper.
Hybrid FRP rebar를 사용한 콘크리트 휨 부재의 정적 거동 특성
심종성 ( Sim Jongsung ),박철우 ( Park Cheolwoo ),박명균 ( Park Myounggyun ),박성재 ( Park Sungjae ),김용재 ( Kim Yongjae ),김현중 ( Kim Hyunjong ) 한국구조물진단유지관리공학회 2008 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.12 No.2
Corrosion of steel rebars in the reinforced concrete structures is one of the main reason of degradation. It causes that lifetime of structures is shortened and maintenance cost is increased. FRP rebar has emerged as one of the most promising and affordable solution to corrosion problem of steel reinforcement in concrete structure. Usually, reinforcement of FRP rebar for concrete has linear elastic behavior up to tensile failure. But steel reinforcement in concrete structure, a certain plastic deformation is required. Because FRP rebar doesn’t have a plastic deformation, a small increasement of load cause a sudden collapse without any warning. Recently, Hybrid FRP rebar has a certain plastic deformation is developed. This study is to examine flexural characteristic of concrete beam reinforced with Hybrid FRP rebar under static loading.