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세굴 및 지반변수에 따른 보(Weir) 구조물의 Seepage 취약도 분석
전오현 ( Jeon Oh Hyeon ),김성도 ( Kim Seong Do ),김민기 ( Kim Min Ki ),촌분탱 ( Chhorn Buntheng ),정우영 ( Jung Woo Young ) 한국구조물진단유지관리공학회 2018 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.22 No.1
Frequent unstable natural disasters worldwide in recent year caused damage to large power plants, high-rise buildings, dams and public facilities, resulting in a growing sense of anxiety among people. This is result in the increase of concern for the safety of residential as well as public infrastructure. Considering this growing concern for the public infrastructure a systematic safety evaluation is require. Thus, in this paper, the fragility of weir structure by considering the scour effect of flood was the focused of study. The weir structure in this study was located in Daegu city; it served as the power and water supply and flood prevention. The study was performed by conducting penetration analysis on the variables of the adjacent ground.
최정규,전오현,정우영 한국복합신소재구조학회 2017 복합신소재구조학회 학술발표회 Vol.2017 No.04
Recently, the damage caused by typhoons and strong winds, which frequently occur as a result of global climate change, is on the rise. Soundproofing and windshield walls installed on roads often fail to function because of damage due to strong winds. Therefore, in this study, strong wind fragility evaluation was performed to predict the probability of failure of soundproof / windproof walls from wind loads. A three-node bending experiment was carried out to investigate the material characteristics of the aluminum frame which was installed on the actual soundproof wall. Based on the results of this experiment, the resistance performance of target structure was calculated, and the frame damage was selected as the performance limit state. Wind loads acting on 4m x 1m individual element soundproof wall was compared with the resistance capacity by Monte Carlo simulation method. In the future, the evaluation of the strong wind safety of the sound barrier structure should be proceeded by setting the limit state and performing the vulnerability evaluation through the additional experimental data. This work can become guideline information for future design of soundproof and windproof wall.
GFRP 복합재료 프레임으로 시공된 방음벽의 강풍 취약도 평가
김성도,Sim ViriyaVudh,곽용주,전오현,정우영 한국복합신소재구조학회 2018 복합신소재구조학회 학술발표회 Vol.2018 No.04
Recently, the damage caused by typhoons and strong winds are increasing due to the world climate change. Considering the vulnerability of structure to strong wind disaster, in this study, we focused on the soundproof wall among vulnerable wind facilities. GFRP was chose as the reinforcement frame among the components of the soundproof wall. The modeling of the soundproof wall was made using the finite element commercial analysis program ABAQUS and the resistance performance was estimated through the optimal model analysis of the soundproof wall. Wind loads were calculated using Monte Carlo Simulation. Finally, wind fragility evaluation was performed to predict the degree of damage of the GFRP frame soundproof wall. It is necessary to verify the performance of the GFRP frame through comparison with the aluminum frame which is generally used in the construction of the soundproofing wall.
최정규 ( Choi Jung Kyu ),김성도 ( Kim Sung Do ),전오현 ( Jeon Oh Hyeon ),정우영 ( Jung Wooyoung ) 한국구조물진단유지관리공학회 2017 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.21 No.2
It is necessary to develop the damage function to cope with the increasing damage of steel transmission towers. A simplify analysis to evaluate the performance resistance capacity, which is essential for the development of the damage function, was performed. The 154kv power transmission towers installed between Sokcho and Yangyang were selected as the target structures. Wind loads were calculated and applied to the target structures according to the domestic transmission and distribution facility design standards. As a result of this study, displacement according to wind speed of the target structure was derived.