꺽쇠형 강재 댐퍼의 변위 및 속도 의존성
Displacement and Velocity Dependence of Clamped Shape Metallic Dampers
0
조회
0
다운로드
6
인용
0
참고문헌
키워드
초록
본 연구의 목적은 일자형 슬릿형 강재댐퍼보다 에너지 소산능력 등이 우수할 것으로 평가된 꺽쇠형 강재 댐퍼의 변위 및 속도의존성 평가에 있다. 이를 위하여 6개의 시험체를 대상으로 의존성 시험을 수행하였다. 시험변수는 변위의존성 및 속도의존성이다. 변위의존성 시험결과, 큰 목표변위 (50mm)의 반복횟수 및 누적에너지소산능력은 적은 목표변위 (25mm)에 비하여 감소하였다. 또한 짧은 목표변위보다 큰항복강도 및 조기파단을 나타내었다. 속도의존성 평가에서는 빠른 목표속도 (60mm/sec)의 반복횟수 및 누적에너지소산능력이 느린 목표속도 (40mm/sec)에 비하여 감소하였다. 따라서 강재댐퍼의 이력 의존성은 가력 변위 및 속도와 밀접한 연관이 있는 것으로 평가되었다
Abstract
The purpose of this study is the displacement and velocity dependence evaluation of clamped shape metallic damper, which were evaluated superior in energy dissipation capacity than straight type slit damper. For this purpose, 6 metallic damper specimens are prepared and dependence test are performed. Test variables are displacement dependence and velocity dependence. According to displacement dependence test results, larger target displacement (50mm) shows lower cyclic numbers and cumulated energy dissipated area than lower target displacement (25mm). Also it shows higher strength and early failure than short target displacement. In velocity dependence evaluation, fast target velocity (60mm/sec) shows lower cyclic numbers and cumulated energy dissipated area than slow target velocity (40mm/sec). Therefore the hysteresis dependence of metallic damper were evaluated as close relation to the loading displacement and velocity conditions
참고문헌 (12)
- A. Benavent-Climent, "An energy-based damage model for seismic response of steel structures", Earthquake Engineering and Structual Dynamics, 36, pp.1049~1064 (2007)
- ASCE, "Minimum Design Loads for Buildings and Other Structures (ASCE 7-10)", ASCE, ~ (2010)
- Hyun Ho Lee, "Hysteretic Behavior of Straight Type Metallic Damper in Width to Height Ratio 0.115", Proceeding of Korea Institute for Structural Maintenance Inspection, 16(2), pp.206~207 (2012)
- Hyun Ho Lee, "Yield Strength Characteristic of Steel Damper by Strut Aspect Ratio", Proceeding of Korea Society of Hazard Mitigation, pp.206~207 (2012)
- 이현호, "V형 강재댐퍼의 이력특성 평가", 한국구조물진단유지관리공학회 논문집, 15(1), pp.254~262 (2011), 한국구조물진단유지관리공학회
- 이현호, "건축구조물의 내진성능 향상을 위한 강재댐퍼 형상 및 이력 거동", 한국구조물진단유지관리공학회 논문집, 14(3), pp.123~130 (2010), 한국구조물진단유지관리공학회
- J. H. Park, "Structural Characteristic and the Evaluation Method for Application of Steel Damper", 25(1), pp.33~36 (2006)
- Japan Society of Seismic Isolation, "Design and Construction Manual of Passive Seismic Control Structures", Japan Society of Seismic Isolation, ~ (2005)
- Masafumi Shin, "Study of Energy Absorption Damper with Low Yield Point Steel (Part 1 Basic Characteristic))", Proceeding of Architectural Institute of Japan, pp.853~854 (1997)
- S. H. Oh, "Hysteresis Behavior of Beam-to-Column Connections with Elasto-Plastic Hysteretic Da", Proceeding of AIK, 25(1), pp.635~638 (2005)
- T. T. Soong, "Passive Energy Dissipation Systems in Structural Engineering", pp.35~81 (1997), John Wiley & Sons
- Y. H. Kim, "Ultimate Energy Absorption Capacity of Steel Plate Slit Dampers subjected to Shear and Axial Force", Proceeding of AIK, 20(2), pp.369~372 (2000)