논문실적
| Analyses of Fundamental Period for Embankment Dams based on Strong Motion Recordings in Japan |
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학술지명 2016대한토목학회 정기학술대회
저자 김승애,박동순
발표일 2016-10-21
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It is useful to collect and analyze strong motion data measured on existing dams to understand the seismic response of fill dams. In this study, JCOLD strong motion database published in 2014 was revisited and analyzed for 121 seismic events obtained from 60 fill dams measured over 1978 to 2012. fundamental periods of fill dams were studied by either ARS-based or FFT-based analyses. Admitting scatter, it is confirmed that there is a broad proportionality between fundamental period and dam height. New regression equations of correlations are given depending on the direction of motion and the computation method. There is no virtual difference between ARS-based and FFT based analyses. Fundamental period in vertical components are typically less than those in two horizontal components. The empirical findings are contributable to the seismic evaluation of existing embankment dams and to the seismic design of new dams. |
