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김석태(Seok Tae, Kim),문상일(Sang Il, Moon),최홍성(Hong Sung, Choi),이형래(Hyoung Rae, Lee),오주(Ju, Oh) 대한설비공학회 2022 대한설비공학회 학술발표대회논문집 Vol.2022 No.6
In this study, an seismic isolation system is suggested using a Natural Rubber Bearing(NRB) on a stainless steel water tank for stability assurance in an earthquake. A shaking table test was carried out to evaluate the seismic capacity of a non-isolated water tank and an isolated water tank. Displacement meters in the water tank measured the behavior characteristics of the tanks, which were compared using artificial seismic waves of 0.154g, 0.231g, 0.341g and 0.348g with water levels of 0.0m, 1.5m and 2.5m. At 2.5m, a decrement effect was generally shown in the isolated water tank, and a bigger displacement occurred in the non-isolated water tank than in the isolated one at water levels of 0.0m and 1.5m. It is interpreted that the weight of different water levels affects the decrement effect. If seismic reinforcement is done, the isolated bearing should be designed while considering the fluid storage level.
십자형 지지구조를 이용한 교량 상부구조의 승상공법 현장적용성 연구
김석태 ( Kim Seok-tae ),김윤환 ( Kim Yun-hwan ) 한국구조물진단유지관리공학회 2020 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.24 No.1
최근 들어 하천홍수위 증가에 따라 교량 하부 형하공간의 부족 등으로 인하여 다리밑 공간의 확보가 필요한 경우 기존 교량을 철거 후 재가설 하는 대신에 십자형 지지구조를 이용한 교량 상부구조 승상공법을 적용하여 기존 교량을 활용하는 방안의 적용이 증가하고 있다. 교량 상부구조의 승상공법 적용시 안전하고 연속적으로 인상작업이 가능하도록 유압·변위 자동제어시스템을 적용하였으며, 하부구조 콘크리트 타설 및 양생기간 중에도 영구 받침장치를 십자형 지지부재에 고정·설치함으로서 온도신축에 의한 구조거동에 대응할 수 있는 십자형 지지부재를 적용하여 교량승상을 안전하게 수행할 수 있음을 확인하였다.
김석태(Seok Tae, Kim),문상일(Sang Il, Moon),이형래(Hyoung Rae, Lee),오주(Ju Oh) 대한설비공학회 2022 대한설비공학회 학술발표대회논문집 Vol.2022 No.6
In this study, a new STS lining method for reducing the number of dew condensation in the water tank was proposed, and the amount of dew water generated in the water tank before and after the improvement was verified through experiments. As a result of the dew condensation discharge experiment under actual environmental conditions for the existing lining water tank(A-type) and the improved STS lining water tank(B-type), the improved STS lining water tank(A-type) is the conventional lining water tank campared to A-type, an average of 1,428ml of condensed water was discharged, which was found to be 14times more effective.
김석태(Seok Tae, Kim),문상일(Sang Il, Moon),이형래(Hyoung Rae, Lee),오주(Ju Oh) 대한설비공학회 2022 대한설비공학회 학술발표대회논문집 Vol.2022 No.6
In this study, a new STS lining method for reducing the number of dew condensation in the water tank was proposed, and the amount of dew water generated in the water tank before and after the improvement was verified through experiments. As a result of the dew condensation discharge experiment under actual environmental conditions for the existing lining water tank(A-type) and the improved STS lining water tank(B-type), the improved STS lining water tank(A-type) is the conventional lining water tank campared to A-type, an average of 1,428ml of condensed water was discharged, which was found to be 14times more effective.
김석태(Seok Tae, Kim),문상일(Sang Il, Moon),이형래(Hyoung Rae, Lee),오주(Ju Oh) 대한설비공학회 2022 대한설비공학회 학술발표대회논문집 Vol.2022 No.6
In this study, a new STS lining method for reducing the number of dew condensation in the water tank was proposed, and the amount of dew water generated in the water tank before and after the improvement was verified through experiments. As a result of the dew condensation discharge experiment under actual environmental conditions for the existing lining water tank(A-type) and the improved STS lining water tank(B-type), the improved STS lining water tank(A-type) is the conventional lining water tank campared to A-type, an average of 1,428ml of condensed water was discharged, which was found to be 14times more effective.