DOI QR코드

DOI QR Code

Evaluation of the Application and Analysis Method at Seismic Design of Dam

댐의 내진설계시 해석방법과 그 적용성 평가

  • 황성춘 (경주대학교 철도건설환경공학과)
  • Received : 2011.07.21
  • Accepted : 2011.09.08
  • Published : 2011.09.30

Abstract

In the country with frequent earthquakes like Japan, resistance to earthquake is assessed on the basis that Dam body's Face slab is destroyed by concentrated stress. In our country this kind of modeling and analysis is not yet definitely established. This paper performed pseudo static analysis and dynamic analysis for CFRD and evaluated reliability with the results of Shaking Table Test. The Seismic coefficient method, modified seismic coefficient method, Newmark method of Pseudo-static analysis and frequency domain response analysis, time domain history analysis of dinamic analysis were used. The analysis results were differ between analysis method, but the trends of acceleration and displacement were good agreement with the results of shaking table test.

일본과 같은 지진 빈발국은 CFRD의 경우 지진시 댐제체 상류부의 Face Slab에 응력이 집중하여 파괴되는 경우를 대부분 상정하여 내진안정성을 평가한다. 그러나 우리나라에서는 현재까지 이에 대한 명확한 해석방법이 확립되어 있지 않다. 본 논문은 CFRD에 대하여 등가정적해석 및 동적해석 수행 후 진동대시험과 비교하여 그 신뢰성을 평가하였다. 등가정적해석은 진도법, 수정진도법, Newmark법을 적용하였고 동적해석은 주파수응답해석, 시간이력 해석법을 적용하였다. 해석결과 해석 방법별 편차는 발생하나 가속도 및 변위의 발생경향은 진동대시험 결과와 잘 일치하였다.

Keywords

References

  1. Ministry of Construction and Transportation of Korea, "The Criteria of Dam Design", 2001.(in Korean)
  2. Korea Water Resources Association, "The Criteria of Dam Design", 2003.(in Korean)
  3. Newmark, N. M., "Effect of Earthquakes on Dams and Embankments", Fifth Rankine Lecture, Geotechnique, Vol. 15, No. 2, pp. 139-160.1965.
  4. Lim, J.Y., "The Evaluation of Seismic Performance on the Concrete Dam of Analysis Method", Earthquake Engineering Society of Korea, Vol. 7, No. 5, 2003.(in Korean) https://doi.org/10.5000/EESK.2003.7.5.001
  5. Ministry of Science and Technology of Korea, "Development of Seismic Efficiency Improvement Technique and Seismic Design in Special Structures", 2000.(in Korean)
  6. Yasuda, S., and Adachi, K., "Estimation of Sliding Displacement of Embankments during Earthquakes by Newmark's Method", Geotechnical Engineering Magazine(The Japanese Geotechnical Society), Vol. 58, No. 12, No. 635, pp. 52-53. 2010., (in Japanese)