논문 상세보기
pp.94-103
For elevated railway station on which track is connected with superstructure of station, structural vibration level and structure-borne-noise level has exceeded the reference level due to structural characteristics which transmits vibration directly. Therefore, existing elevated railway station is in need of economical and effective vibration reduction method which enable train service without interruption. In this study, structural vibration non-transmissible system which is applied to vibroisolating material for column member is developed to reduce vibration. That system is cut covering material of the column section using water-jet method and is installed with vibroisolating material on cut section. To verify vibration reduction effect and structural performance for structural vibration non-transmissible system, impact hammer test and cyclic lateral load test are performed for 1/4 scale test specimens. It is observed that natural period which means vibration response characteristics is shifted , and damping ratio is increased about 15~30% which means that system is effective to reduce structural vibration through vibration test. Also load-displacement relation and stiffness change rate of the columns are examined, and it is shown that ductility and energy dissipation capacity is increased. From test results, it is found that vibration non-transmissible system which is applied to column member enable to maintains structural function.
2. 구조진동절연시스템
2.1 선하역사내의 진동 전달흐름
2.2 진동절연시스템 개요
3. 구조진동절연시스템 성능 검토 실험
3.1 시편제작
3.2 충격가진 실험
3.3 구조성능 실험
4. 실험 결과 및 분석
4.1 충격가진 실험결과
4.2 동적구조성능실험
5. 결 론
감사의 글
References
