지진계측데이타에 근거한 유체저장탱크의 동적응답 평가

Evaluation of Dynamic Response for Liquid Storage Tank using the Observed Earthquake Data

  • 허택영 (한국전력공사 전력연구원 일반연구원)
  • 발행 : 1997.04.01

초록

A study to evaluate the seismic response of $\frac{1}{2}$-scaled liquid storage tank constructed in Hualien, is performed. And this study is to identify the liquid-structure-soil interaction by observed earthquake data ans analyzed results. After the calculation of soil impedance for the test site by SASSI code, 3-dimensional seismic response analysis is performed by BEM-FEM-Impedance Method with the consideration of liquid-structure-soil interaction when the tank is excited by real earthquake. The observed acceleration and hydrodynamic pressure are compared with the numerical results. This comparisons show good agreement in predominant frequency and maximum hydrodynamic pressure. And the free surface sloshing motion due to earthquake loadings is computed in time domain.

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