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장광석 ( Jang Kwang Seok ),장준호 ( Chang Chun Ho ),이홍표 ( Lee Hong Pyo ) 한국복합신소재구조학회 2016 복합신소재구조학회논문집 Vol.7 No.4
Recently, many people have become interested in seismic stability enhancement and a chain of research and development be proceed for application of nuclear power plant according to increase the frequency and magnitude of earthquake event. Such as seismic isolation system is applied to general structure (architecture, bridge and LNG tank etc.) from ancient times. But the application results is limited for Nuclear power plant. In this paper, we proposed a stability of variable axial load from beyond design basis earthquake in Nuclear power plant. Also, the change of stiffness in isolator from the application of generally design equation is not equal to according to change in axial load compare with the experimental result in variable axial load. Therefore we proposed the empirical formula of design equation from test result of full-scale multi-lead rubber bearing for seismic analysis with real behavior (variable axial load) in the earthquake motion.
한국건설생활환경시험연구원 6자유도 진동 내구성평가 장비 소개
장광석 ( Jang Kwang-seok ),김재신 ( Kim Jae-shin ),김창효 ( Kim Chang-hyo ) 한국구조물진단유지관리공학회 2021 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.25 No.2
한국건설생활환경시험연구원은 산업통상자원부 국가기술표준원의 유관기관으로 2010년 7월 한국건자재시험연구원과 한국생활환경 시험연구원이 통합하여 출범한 시험·인증 연구기관으로 건설분야 재료 및 자재를 비롯하여 생활용품, 에너지, 보건환경, 바이오, 미래자동차, 배터리 등의 일상생활에 밀접한 제품 및 자재에 대한 시험·평가·인증과 연구개발의 업무를 수행하고 있다. 한국건설생활환경시험연구원 전북지원에서 현재 구축 중인 6자유도 진동내구성평가 장비는 MAST(Multi axial simulation table)이며 차량 및 철도 관련 핵심부품, 건축 비구조요소, 배터리 내구성 시험 등의 진동 내구성평가가 가능하다.
장광석(Kwang-Seok Jang),심기철(Ki-Chul Sim),이재욱(Jae-Uk Lee),이홍표(Hong-Pyo Lee),조명석(Myung-Suk Cho) 한국소음진동공학회 2015 한국소음진동공학회 학술대회논문집 Vol.2015 No.4
The purpose of this study is to reduce the quantities of the isolators for optimization of nuclear power plants base isolation system. To solve this problem, increase the horizontal stiffness of the device over the performance improvement of the existing low hardness rubber, and decreases the quantity of devices through the division of lead-core. In order to optimize the APR1400’s base isolation system, finite element analysis was performed to examine the multi-lead rubber bearing which is improved the single lead rubber bearing. The proposed division of lead plug can reduce the quantity of devices through in this study. Accordingly possible to secure economic efficiency of the seismic isolation system, and is also expected to be effectively managed in the maintenance.