| Title |
Evaluation of the Effect of Input Motions on Earthquake-Induced Settlement of Embankment Dams |
| Authors |
조성배(Jo, Seong-Bae) ; 김남룡(Kim, Nam-Ryong) ; 김태민(Kim, Tae Min) |
| DOI |
https://doi.org/10.12652/Ksce.2020.40.5.0509 |
| Keywords |
지진;필댐;침하량;입력운동;수치해석 Earthquake;Embankment dam;Settlement;Input motion;Numerical analysis |
| Abstract |
Currently, the criteria for input motions used in dam seismic design are clearly presented in general provisions of seismic design (KDS 17 10 00), and seismic ground motion records should be matched to the standard design response spectrum. However, the effect on the results is not assessed according to the selection of the seismic ground motion records, making it difficult to select seismic input motions. Therefore, in this study, the change in the amount of crest settlement of an embankment dam was assessed through numerical analysis after matching the seismic ground motion records of domestic and overseas earthquakes in accordance with the standard design response spectrum provided in the seismic design code (KDS 17 10 00). The results showed that the behavior of the upper part of the embankment, such as maximum acceleration at the crest and amplification through the dam, rather than the effect of free-field acceleration, had a greater effect on the amount of crest settlement. Moreover, it was confirmed that even an input seismic motion matched to the standard design response spectrum can make a difference in settlement depending on the characteristics of amplification through a dam body. |