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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2021.5
- 수록면
- 145 - 152 (8page)
- DOI
- 10.5000/EESK.2021.25.3.145
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초록· 키워드
오류제보하기
KAERI has planned to carry out a series of dynamic tests using a shaking table and time-history analyses for a channel-type concrete shear wall to investigate its seismic performance because of the recently frequent occurrence of earthquakes in the south-eastern parts of Korea. The overall size of a test specimen is 2500 mm×3500 mm×4500 mm, and it consists of three stories having slabs and walls with thicknesses of 140 mm and 150 mm, respectively. The system identification, FE model updating, and time-history analysis results for a test shear wall are presented herein. By applying the advanced system identification, so-called pLSCF, the improved modal parameters are extracted in the lower modes. Using three FE in-house packages, such as FEMtools, Ruaumoko, and VecTor4, the eigenanalyses are made for an initial FE model, resulting in consistency in eigenvalues. However, they exhibit relatively stiffer behavior, as much as 30 to 50% compared with those extracted from the test in the 1st and 2nd modes. The FE model updating is carried out to consider the 6-dofs spring stiffnesses at the wall base as major parameters by adopting a Bayesian type automatic updating algorithm to minimize the residuals in modal parameters. The updating results indicate that the highest sensitivity is apparent in the vertical translational springs at few locations ranging from 300 to 500% in variation. However, their changes seem to have no physical meaning because of the numerical values. Finally, using the updated FE model, the time-history responses are predicted by Ruaumoko at each floor where accelerometers are located. The accelerograms between test and analysis show an acceptable match in terms of maximum and minimum values. However, the magnitudes and patterns of floor response spectra seem somewhat different because of the slightly different input accelerograms and damping ratios involved.
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참고문헌 (19)
참고문헌 신청
ABAQUS / 2011 / Analysis User’s Manual. Ver. 6.11
ANSYS / Robust Simulation and Analysis Software
Carr AJ / 2017 / Ruaumoko3D; Inelastic Dynamic Analysis - User Manual / Dept. of Civil Engrg. Univ. of Canterbury
Cauberghe B / 2004 / Applied Frequency-Domain System Identification in the Field of Experimental and Operational Modal Analysis
Dynamic Design Solutions / 2020 / FEMtools Users’ Guide Ver. 4.1
ANSYS / Robust Simulation and Analysis Software
Carr AJ / 2017 / Ruaumoko3D; Inelastic Dynamic Analysis - User Manual / Dept. of Civil Engrg. Univ. of Canterbury
Cauberghe B / 2004 / Applied Frequency-Domain System Identification in the Field of Experimental and Operational Modal Analysis
Dynamic Design Solutions / 2020 / FEMtools Users’ Guide Ver. 4.1
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