LNG 탱크의 극저온 온도응력을 고려한 수밀성 설계방법 비교 연구

A Study on the Liquid Tightness Design on LNG Tank Incorporating Cryogenic Temperature-induced Stresses

In a design of LNG storage tank, one of the major loading conditions that significantly affects liquid tightness of the outer concrete wall is the cryogenic temperature of LNG under the emergency condition of LNG leakage. Proposed in this study are the more consistent procedures to ensure the liquid tightness of LNG tank focusing on the design of prestressing tendon. It is expected that the proposed schemes lead to a more effective serviceability design of LNG tank that satisfies various requirements for the liquid tightness in an efficient manner.