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박연수,이병근,Park, Yeon-Soo,Lee, Byung-Geun 한국전산구조공학회 2012 한국전산구조공학회논문집 Vol.25 No.1
정보 모델링이라 일컫는 BIM은 단순히 이미지를 표현할 뿐만 아니라 교량의 전 생애주기에 발생하는 정보를 저장하는 도구로 활용된다. 최근 발주부터 유지관리까지 교량의 전 생애주기 동안에 BIM을 활용하여 건설 생산성을 향상시키려는 시도가 증가하고 있다. 현재 BIM에 대한 이점은 어느 정도 인지하고 있는 상태이지만, BIM구축 및 활용에 대한 정보가 부족한 상태에서 도입하면 오히려 이익보다는 추가적인 업무발생에 의한 손실을 일으키게 되므로 아직까지는 조심스러운 단계이다. 따라서 본 연구에서는 교량에 관한 BIM을 실제로 작성하여 토목분야의 객체를 모델링할 수 있는지를 평가하고 BIM을 적절하게 활용하기 위한 개선점 및 향후 활용방안에 대해 고찰하고자 한다. 연구결과 BIM은 도면과 물량산정에 있어서 일관성, 효율성, 정확성에 기여할 수 있었고 파라메트릭 모델을 활용한 치수 설정으로 모델의 재활용이 가능한 것으로 나타났다. 도입 초기에는 모델작성에 따른 노력이 소모되지만 그 이후에는 작성된 모델을 활용하므로 생산성을 증가시키는데 도움이 될 것으로 판단된다. The BIM called information modeling is used by tool not only it will simply be appearing the image and can save the information. Recently, there is a lot of case that improves the construction productivity by using the BIM during the life cycle of bridge from order to management. Although we already recognize the advantage of BIM, it is a careful phase to use the BIM. Therefore, We made the BIM for bridge, evaluated the possibility that can build the object used in the civil engineer, studied about the utility, the improvement in order to use the BIM properly. As a result, the BIM can recycle the information by using parametric model and attribute the efficiency and accuracy on drawing and calculating the quantity. The BIM is able to help productivity increase by using the builded model after we spend the effort building a model in early stage.
박연수(Park Yeon-Soo),이병근(Lee Byung-Geun),김응록(Kim Eung-Rok),서병철(Suh Byung-Chul),박선준(Park Sun-Joon),최선민(Choi Sun-Min) 한국철도학회 2008 한국철도학회 학술발표대회논문집 Vol.- No.-
In this study, We examine closely the capacity spectrum method which a kind of displacement-based method evaluated by displacement of structure as an alternative to the load-based analysis method. The displacement-based method can easily review the strength of structure, seismic performance, ductility. Seismic performance by using capacity spectrum method is divided into design response spectrum and capacity spectrum. We can diagram design response spectrum by deciding the design seismic factor depending on performance target, site classification, seismic level, return period as UBC-97. Capacity spectrum is a load-displacement curve obtained by Push-over analysis considering the geometric parameter and the material parameter. We execute the seismic performance evaluation by using the capacity spectrum method to reinforced concrete pier which has been seismic design. As a result, We confirmed that there is a yield point and a ultimate point close by design response spectrum of UBC-97.
검도 숙련도와 검도 경력에 따른 검도관련 체력과 뇌파의 활성도 차이 비교
김승호(Kim, Seung-Oh),홍상민(Hong, Sang-Min),이병근(Lee, Byung-Geun),신윤아(Shin, Yun-A) 한국사회체육학회 2021 한국사회체육학회지 Vol.- No.84
Purpose: This study is conducted to identify the effects of Kumdo training on the Kumdo-related fitness and electroencephalographic (EEG) activity of elementary school students with and without experience in Kumdo training. Method: The study subjects were 24 male elementary school students. According to their Kumdo training career, the students with athletic or non-athletic Kumdo training careers of more than 1 year were considered experts in Kumdo(n=12). The remaining 12 students were classified into the inexperienced group(n=12). The effects of Kumdo training on Kumdo-related fitness factors such as muscular strength, muscular endurance, cardiorespiratory endurance, power, flexibility, and body composition were assessed, and the EEG activities during stabilized and Jungdansea (static and dynamic) marinating postures were measured. Results: The results of the study showed that among the Kumdo-related fitness factors, cardiorespiratory endurance and muscle strength were higher and body fat percentage was lower in the Kumdo experienced group than in the inexperienced group (p<.05). No significant difference was found in the slow frequency region according to the kumdo training experience, but the alpha activity was lower and the EEG activity in the higher frequency region was higher in the experienced group than in the inexperienced group(p<.05). According to the Kumdo movement pattern, the subjects showed higher EEG activity while maintaining the dynamic and static Jungdansea postures than when at rest(p<.01). Conclusion: Therefore, Kumdo training can be suggested to help increase Kumdo-related fitness and mental concentration and develop brain activities.