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PSC범 교량의 교좌장치 교체시 상부구조물의 안전성평가에 관한 연구
박선규 ( Park Bun Kyu ),김중혁 ( Kim Joong Hyuk ) 한국구조물진단유지관리공학회 1997 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.1 No.1
Serviceability and durability deteriorates because of crack and corrosion, therefore, the bridge requires repair and maintenance in case of heavy loss, it is need to replace. At the same time, bearing is necessary to replace on the occasion of serious loss. Especially when bearing is needed to replace, it is necessary to lift deck to make enough space for work. At that time, the stress in deck varies because of the effect of displacement. The work should depend on experience. The reason is lack of technique and study on this field. Object of this study is to find the effect of displacement caused by oil jack which is necessary to life deck, and to show the direction in safe work.
한정헌(HAN Jung-Hun),류성찬(Ryu Seong-Chan),윤준호(Yoon Jun-Ho),김정환(Kin Jung Hwan),김번중(Kim Bun-Jung),박선규(Park Sun-Kyu) 한국태양에너지학회 2010 한국태양에너지학회 학술대회논문집 Vol.2010 No.11
The Solar Daylighting is the highly efficient and key technology for the green lighting and heat energy. It can be used in many industrial and residential facilities as the reusable energy and no waste generated. In this study, the ray tracing simulation was performed to analyze the shapes of different reflectors for the daylighting. Using Trace Pro program, at the time of the autumnal equinox and the winter solstice at fixed hours. As a result of this experiment, the linear arrangement of reflectors can be one of the useful and applicable daylighting method for the shaded area solar lighting in the aspects of illumination and heating area and hours of daylighting.