스펙트럼 적합 입력지반운동에 의한 면진구조의 응답 특성
Response of Base Isolation System Subjected to Spectrum Matched Input Ground Motions
1
조회
0
다운로드
8
인용
0
참고문헌
키워드
초록
Structures in a nuclear power system are designed to be elastic even under an earthquake excitation. However a structural component such as an isolator shows inelastic behavior inherently. For the seismic assessment of nonlinear structures, response history analysis should be performed. In this study, the response of base isolation system was analyzed by response history analysis for the seismic performance assessment. Firstly, several seismic assessment criteria for a nuclear power plant structure were reviewed for the nonlinear response history analysis. Based on these criteria, the spectrum matched ground motion generation method modifying a seed earthquake ground motion time history was adjusted. Using these spectrum matched accelerograms, the distribution of displacement responses of the simplified base isolation system was evaluated. The resulting seismic responses excited by the modified ground motion time histories and the synthesized time history generated by stochastic approach were compared. And the response analysis of the base isolation system considering the different intensities in each orthogonal direction was performed.
Abstract
Structures in a nuclear power system are designed to be elastic even under an earthquake excitation. However a structural component such as an isolator shows inelastic behavior inherently. For the seismic assessment of nonlinear structures, response history analysis should be performed. In this study, the response of base isolation system was analyzed by response history analysis for the seismic performance assessment. Firstly, several seismic assessment criteria for a nuclear power plant structure were reviewed for the nonlinear response history analysis. Based on these criteria, the spectrum matched ground motion generation method modifying a seed earthquake ground motion time history was adjusted. Using these spectrum matched accelerograms, the distribution of displacement responses of the simplified base isolation system was evaluated. The resulting seismic responses excited by the modified ground motion time histories and the synthesized time history generated by stochastic approach were compared. And the response analysis of the base isolation system considering the different intensities in each orthogonal direction was performed.
참고문헌 (13)
- "ASCE 43-05. Seismic Design Criteria for Structures, Systems, and Components in Nuclear Facilities: American Society of Civil Engineers", 81~ (2005)
- Hancock J, "An improved method of matching response spectra of recorded earthquake ground motion using wavelets", Journal of Earthquake Engineering, 10(S1), pp.67~89 (2006)
- Spears RE., "Unique Method for Generating Design Earthquake Time Histories", ASME Pressure Vessels and Piping Division Conference (2008)
- Mukherjee S, "Wavelet-based Generation of Spectrumcompatible Time-histories", Soil Dynamics and Earthquake Engineering, 22(9-12), pp.799~804 (2002)
- Giaralisa A, "Wavelet-based Response Spectrum Compatible Synthesis of Accelerograms - Eurocode Application (EC8)", Soil Dynamics and Earthquake Engineering, 29(1), pp.219~235 (2009)
- Suárez LE, "Generation of Artificial Earthquakes via the Wavelet Transform", International Journal of Solids and Structures, 42(21-22), pp.5905~5919 (2005)
- Legrue J, "Simulation of Nonstationary Ground Motions Using Wavelets", 13th World Conference on Earthquake Engineering (2004)
- USNRC, "A Performance-Based Approach to Define the Site-Specific Earthquake Ground Motion: Regulatory Guide. 1.208", U.S Nuclear Regulatory Commission, 24~ (2007)
- ASCE 4-98., "ASCE 4-98. Seismic Analysis of Safety-Related Nuclear Structures and Commentary", American Society of Civil Engineers, 118~ (2000)
- USNRC, "NUREG-0800, Standard Review Plan, Section 3.7.1 Seismic Design Parameters", U.S Nuclear Regulatory Commission, ~ (2007)
- USNRC, "Design Response Spectra for Seismic Design of Nuclear Power Plants: Regulatory Guide. 1.60", U.S Nuclear Regulatory Commission, 6~ (1973)
- Nie J, "-CARES: Probabilistic Computer Analysis for Rapid Evaluation of Structures: NUREG", CR-6922, 2007, pp.158~
- Assessment of Base-Isolated Nuclear Structures for Design and Beyond-Design Basis Earthquake Shaking, "Huang Y", MCEER, 136~, pp.Technical Report MCEER-09-0008 (2009)