Journal of the Earthquake Engineering Society of Korea (한국지진공학회논문집)

Earthquake Engineering Society of Korea (한국지진공학회)
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An Efficient High-Frequency Vibration Analysis of Floors in Building Structures

고차의 진동하중을 받는 건축물 바닥판의 효율적인 진동해석

  • 이동근 (성균관대학교 건축공학과) ;
  • 김태호 (성균관대학교 건축공학과)
  • Published : 2006.10.30
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Abstract

The object of this study is to propose the efficient method for analyzing the building floors subjected to the loading with high frequency contents. For this purpose, the method for mesh division and the selection of master DOF for FE model of building floors with these loadings are studied. Also, it is verified that the availability of thin plate element that is used by structural engineers for the modelling of the building floor of which the span-thickness ratio is usually ten times and over. And the possibility and limit of the equivalent plate which is already studied by other researcher for the multi-layer plate are investigated. At last, proposed modelling method is examined by the example structure.

본 연구의 목적은 높은 진동수 성분의 진동원을 가지는 건축물의 바닥판을 효율적으로 해석하는 방법을 제시하는 것이다. 이를 위하여 고차진동하중을 받는 건축물의 바닥판에 적절한 요소분할 방법과 이에 따른 과도한 자유도를 줄이기 위한 자유도 선택방법에 대하여 연구하였다. 그리고 일반적으로 건축물의 바닥판의 경우에는 두께에 비하여 바닥판의 길이가 길기 때문에 전단변형이 고려되지 않은 판요소를 바닥판의 모형화에 많이 사용하는데 이에 대해서도 그 적절성을 검증하였다. 그리고 여러 개의 층으로 이루어진 건축물 바닥판을 기존의 방법을 이용하여 등가의 바닥판으로 치환하였으며 이 방법의 가능성과 한계를 검토하였고 마지막으로는 예제 구조물을 중심으로 제안한 모형화 방법의 효율성을 확인하였다.

Keywords

References

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