마찰진자시스템의 강성중심 변화에 따른 면진된 원전 구조물의 지진응답평가
Seismic Response Evaluation of Seismically Isolated Nuclear Power Plant with Stiffness Center Change of Friction Pendulum Systems
2
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
In order to improve the seismic performance of structures, friction pendulum system (FPS) is the most commonly used seismic isolation device in addition to lead rubber bearing (LRB) in high seismicity area. In a nuclear power plant (NPP) with a large self weight, it is necessary to install a large number of seismic isolation devices, and the position of the center of rigidity varies depending on the arrangement of the seismic isolation devices. Due to the increase in the eccentricity, which is the difference between the center of gravity of the nuclear structure and the center of stiffness of the seismic isolators, an excessive seismic response may occur which could not be considered at the design stage. Three different types of eccentricity models (CASE 1, CASE 2, and CASE 3) were used for seismic response evaluation of seismically isolated NPP due to the increase of eccentricity (0%, 5%, 10%, 15%). The analytical model of the seismic isolation system was compared using the equivalent linear model and the bilinear model. From the results of the seismic response of the seismically isolated NPP with increasing eccentricity, it can be observed that the effect of eccentricity on the seismic response for the equivalent linear model is larger than that for the bilinear model.
Abstract
In order to improve the seismic performance of structures, friction pendulum system (FPS) is the most commonly used seismic isolation device in addition to lead rubber bearing (LRB) in high seismicity area. In a nuclear power plant (NPP) with a large self weight, it is necessary to install a large number of seismic isolation devices, and the position of the center of rigidity varies depending on the arrangement of the seismic isolation devices. Due to the increase in the eccentricity, which is the difference between the center of gravity of the nuclear structure and the center of stiffness of the seismic isolators, an excessive seismic response may occur which could not be considered at the design stage. Three different types of eccentricity models (CASE 1, CASE 2, and CASE 3) were used for seismic response evaluation of seismically isolated NPP due to the increase of eccentricity (0%, 5%, 10%, 15%). The analytical model of the seismic isolation system was compared using the equivalent linear model and the bilinear model. From the results of the seismic response of the seismically isolated NPP with increasing eccentricity, it can be observed that the effect of eccentricity on the seismic response for the equivalent linear model is larger than that for the bilinear model.
참고문헌 (18)
- "Korea Electric Power Industry Code. STC Seismic isolation design", Korea Electric Association, ~
- Assessment of base-isolated nuclear structures for design and beyond-design basis earthquake shaking, "Huang YN", MCEER. State University of New York, ~, pp.Technical Report MCEER-09-0008 (2009)
- Experimental and analytical studies of the friction pendulum system for the seismic protection of simple bridges, "Mosqueda G", Earthquake Engineering Research Center. University of California, ~, pp.UCB (2004), EERC 2004-01
- Mechanical behavior of multi-spherical sliding bearings, "Fenz DM", Multidisciplinary Center for Earthquake Engineering Research. State University of New York, ~, pp.MCEER-08-0007 (2008)
- Development, implementation and verification of dynamic analysis models for multi-spherical sliding bearings, "Fenz DM", Multidisciplinary Center for Earthquake Engineering Research. State University of New York, ~, pp.MCEER-08-0018 (2008)
- 전법규, "진동대실험을 통한 원추형 마찰진자베어링의 내진성능 평가", 한국소음진동공학회논문집, 21(7), pp.599~608 (2011), 한국소음진동공학회
- 김권일, "마찰진자 원리를 이용한 기계식 방진기의 진동 저감 특성 분석", 한국방재학회논문집, 16(6), pp.319~324 (2016), 한국방재학회
- Fenz DM, "Spherical sliding isolation bearings with adaptive behavior: Experimental verification", Earthquake Engineering and Structural Dynamics, 37(2), pp.185~205 (2008)
- Fenz DM, "Spherical sliding isolation bearings with adaptive behavior: Theory", Earthquake Engineering and Structural Dynamics, 37(2), pp.163~183 (2008)
- Applied Technology Council, "Quantification of building seismic performance factors (FEMA P695). ATC-63 Project", ~ (2009)
- American Association of State Highway and Transportation Officials, "Guide Specification for Seismic Isolation Design", AASHTO, ~ (2010)
- FEMA, "NEHRP guidelines for the seismic rehabilitation of buildings (FEMA 273) and NEHRP commentary on the guidelines for the seismic rehabilitation of buildings (FEMA 274)", Building Seismic Safety Council, ~ (1997)
- American Society of Civil Engineers, "ASCE 7-10; Minimum Design Loads for Buildings and other Structures", ASCE, ~ (2010)
- Mayes RL, "The seismic design handbook", pp.725~755 (2001), Kluwer Academic Publishers
- Naeim F, "Design of seismic isolated structures" (1999), John Wiley & Sons
- Lysmer J, "A system for analysis of soilstructure interaction. SASSI 2000 theoretical manual", UC Berkeley, ~ (1999)
- "OpenSees: Open System of Earthquake Engineering Simulation" (2007)[URL]
- Wu SC, "Dynamics of Mechanical Systems with Coulomb Firciton, Stiction, Impact and Constraint Addition-Deletion-Ⅱ:Planar Systems", Mechanism and Machine Theory, 21 (1986)