Computational Structural Engineering (전산구조공학)

Computational Structural Engineering Institute of Korea (한국전산구조공학회)
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경계요소법에 의한 대규모 3차원 지하구조물의 동적해석

  • Published : 1995.09.01
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Abstract

3차원 대규모 지하구조물의 동적응답을 결정하기 위한 일반적인 수치해석이 제안되었다. 지반과 구조물을 해석하기 위하여 Laplace 변환을 적용한 경계요소법을 설명하였고, 지반-구조물계에 작용하는 외부 동적하중과 지진파를 고려할 수 있도록 공식화하였다. 동적교란이 전파되는 경우에 시간영역의 응답을 얻기 위하여는 구해진 변화된 해를 수치적인 Laplce 역변환을 수행하여야 하지만 동적교란이 조화적인 경우에는 응답이 주파수 영역으로부터 직접 얻어지며, 역변환이 필요하지 않다. 이 방법의 특징은 높은 정확도와 효율성이며, 지반-구조물계에 대하여 초기조건 및 점탄성 재료의 거동을 쉽게 고려할 수 있다는 것이다. 그러므로 이 방법은 다양한 지하구조물의 동적거동과 지진에 대한 취약함을 연구하기 위한 적절한 도구로 사용되어 질 수 있다.

Keywords

References

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