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정영수 ( Jeong Young Soo ),박동욱 ( Park Dong Uk ),김재봉 ( Kim Jae Bong ) 한국구조물진단유지관리공학회 2018 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.22 No.2
Recently, Gyeongju earthquake with local magnitude 5.1 and 5.8 has been occurred at South Korea in 2016. The seismic qualification for structural and nonstructural components were emphasized in order to use the safety. However, the standard analysis method of dynamic characteristics for structural and nonstructural component were unclear and ambiguous. In this study, to develop the standard analysis method of dynamic characteristic as resonance frequency, damping and test response spectrum, s/w was invented based on Matlab. The seismic tests were conducted in different test laboratory in order to verify the reliability of s/w. Its dynamic characteristics were compared and evaluated depending on each test laboratory.
정영수 ( Jeong Young Soo ),최영택 ( Choi Young Taeg ),차기혁 ( Cha Ki Hyuk ),김인태 ( Kim In Tae ) 한국구조물진단유지관리공학회 2018 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.22 No.2
The importance of maintenance in steel structures is to be emphasized according to increase of their service time. To protect the corrosion damages, the repainting on steel bridges are usually applied every 10 to 13 years by visual inspection. However, the coating durability was rapidly decreased by airborne salt under marine environment. In this study, the time-dependence deposited salts were measured at several types and locations of structural member in marine bridge.
정영수 ( Jeong Young-soo ),박광명 ( Park Kwang-myeong ),김인태 ( Kim In-tae ) 한국구조물진단유지관리공학회 2021 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.25 No.2
해상 강교량의 부식 내구성은 대기중에 포함된 염분량의 평가는 부식을 예측하는데 매우 중요하며, 강교량의 도막 노화에 의하여 방식기능이 저하되며, 염분 및 수분이 도막표면에 부착하여 부식에 의한 두께 감소의 원인이 되기도 한다. 본 연구에서는 해상 강교량의 유지관리 효율성 제고를 위하여 12개월간 기후조건과 구조형태 및 위치에 따른 비래염분 및 부착염분을 측정하고 그 결과를 분석하였다.