Structural Engineering and Mechanics

  • 제65권1호
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  • Pages.69-79
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  • 2018
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Free vibration analysis of concrete arch dams by quadratic ideal-coupled method

  • 투고 : 2017.04.05
  • 심사 : 2017.10.23
  • 발행 : 2018.01.10
⟨ 이전 논문 다음 논문 ⟩

초록

This paper is devoted to two new techniques for free vibration analysis of concrete arch dam-reservoir systems. The proposed schemes are quadratic ideal-coupled eigen-problems, which can solve the originally non-symmetric eigen-problem of the system. To find the natural frequencies and mode shapes, a new special-purpose eigen-value solution routine is developed. Moreover, the accuracy of the proposed approach is thoroughly assessed, and it is confirmed that the new scheme is very accurate under all practical conditions. It is also concluded that both decoupled and ideal-coupled strategy proposed in the previous works can be considered as special cases of the current more general procedure.

키워드

참고문헌

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