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Dynamic behavior of an FRP Deck under Moving Wheel Loading : 윤하중을 받는 FRP바닥판의 동적거동에 관한 연구
서형열(Seo Hyeong Yeol),김두기(Kim Doo Kie),취진타오(Cui Jintao),박기태(Park Ki Tae),이영호(Lee Young Ho) 한국구조물진단유지관리학회 2006 한국구조물진단학회 학술발표회논문집 Vol.10 No.2
Fiber reinforced polymer(FRP) composite decks are new to bridge applications and hence not much literature exists on their dynamic behavior. As the traffic loads that bridges suffered are mainly moving loads, so the dynamic behavior of FRP decks are very important in the design of bridges using FRP decks. In this paper, a simple model was selected to make numerical simulations and experimental tests. The main interest of this research is categorized into two pats: dynamic characteristics of FRP deck and dynamic responses under moving loads. In the dynamic characterization, the comparison of the natural frequencies under different boundary conditions shows that boundary condition is one of factors that have great effect on the natural frequencies. To obtain the frequency response function (FRF) from testing data is a valid way to verify the corresponding numerical model. In the part of dynamic response under moving load, there were shifts between results obtained by numerical analysis and experimental tests, which are mainly because the load applied in numerical analysis was different from the actual load.
서형열 ( Seo Hyeong Yeol ),김두기 ( Kim Doo Kie ),취진타오 ( Cui Jintao ),박기태 ( Park Ki Tae ),이영호 ( Lee Young Ho ) 한국구조물진단유지관리공학회 2006 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.10 No.2
Fiber reinforced polymer(FRP) composite decks are new to bridge applications and hence not much literature exists on their dynamic behavior. As the traffic loads that bridges suffered are mainly moving loads, so the dynamic behavior of FRP decks are very important in the design of bridges using FRP decks. In this paper, a simple model was selected to make numerical simulations and experimental tests. The main interest of this research is categorized into two pats' dynamic characteristics of FRP deck and dynamic responses under moving loads. In the dynamic characterization, the comparison of the natural frequencies under different boundary conditions shows that boundary condition is one of factors that have great effect on the natural frequencies. To obtain the frequency response function (FRF) from testing data is a valid way to verify the corresponding numerical model. In the part of dynamic response under moving load, there were shifts between results obtained by numerical analysis and experimental tests, which are mainly because the load applied in numerical analysis was different from the actual load.
박광순(Park, Kwang Soon),서형열(Seo, Hyeong Yeol) 한국구조물진단유지관리학회 2011 한국구조물진단학회 학술발표회논문집 Vol.15 No.1
The purpose of seismic countermeasures for seismic design was not reflected bridges on general national roads, “Seismic assessment and retrofitting guidelines for bridges” was published by Ministry of Land, Transport and Maritime Affairs and Korea Infrastructure Safety and Technology Corporation in 2004. Based on this, seismic assessment and retrofitting for existing bridges were performed. We found the some problems that performing the seismic assessment for existing bridges. Then, it was proposed for revised assessment and retrofitting guidelines to reflect the contents such as KOREA Bridge Design CODES (2010) revision and development of seismic technology, recently developed various improvement techniques. Specially, revised assessment and retrofitting guidelines include more diverse sample to help practitioners understandings. Assessment guidelines include the examples such as superstructure and bearing type, retrofitting guidelines include progress examples using example of assessment guidelines. In this presentation, among the examples of revised assessment guidelines, the seismic assessment for steel box girder bridge(straight bridge and installed pot bearing) will be introduced.
박광순 ( Park Kwang Soon ),서형열 ( Seo Hyeong Yeol ) 한국구조물진단유지관리공학회 2011 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.15 No.1
The purpose of seismic countermeasures for seismic design was not reflected bridges on general national roads, “Seismic assessment and retrofitting guidelines for bridges” was published by Ministry of Land, Transport and Maritime Affairs and Korea Infrastructure Safety and Technology Corporation in 2004. Based on this, seismic assessment and retrofitting for existing bridges were performed. We found the some problems that performing the seismic assessment for existing bridges. Then, it was proposed for revised assessment and retrofitting guidelines to reflect the contents such as KOREA Bridge Design CODES (2010) revision and development of seismic technology, recently developed various improvement techniques. Specially, revised assessment and retrofitting guidelines include more diverse sample to help practitioners understandings. Assessment guidelines include the examples such as superstructure and bearing type, retrofitting guidelines include progress examples using example of assessment guidelines. In this presentation, among the examples of revised assessment guidelines, the seismic assessment for steel box girder bridge(straight bridge and installed pot bearing) will be introduced.