Abstract

본 연구에서는 LNG 저장탱크에 대하여 내진해석을 수행하였다. 해석 모델은 관통 파이프만을 고려한 경우와 관통 파이프, 내부 벽체, 가이드를 고려한 경우에 대하여 해석을 수행하였다. 내진 해석법으로 등가정적 해석법과 응답 스펙트럼 해석법을 두 가지 해석 모델에 대하여 각각 적용하였다. 변형량과 응력을 계산하고, 그 결과를 비교하였다. 해석 결과, 응답 스펙트럼 해석법이 등가정적 해석법에 비하여 LNG 저장탱크를 보다 잘 모사하는 방법임을 알 수 있었다. In this paper, seismic analysis of LNG storage tank is performed. The analysis models are both pipe and pipe, wall and guide of LNG tank. And equivalent static analysis and response spectrum analysis are applied to these two models, respectively. From the analysis, deflections and equivalent stresses are compared. Results show that response spectrum analysis is more accurate than equivalent static analysis for LNG storage tank.

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