Device for fixing the primary barrier reinforcement member of lng storage tank

PURPOSE: A fixing device for a reinforcing member of a primary barrier of an LNG tank is provided to firmly support a reinforcing member since a fixing device is inserted into the lower part of a crossing portion of a primary barrier. CONSTITUTION: A fixing device(100) for a reinforcing member of a primary barrier of an LNG tank comprises a protrusion portion(110) and extended portions(120). The protrusion portion is upwardly protruded. The protrusion portion is coupled to a groove formed on the lower part of a crossing portion of the primary barrier through shape fitting. The extended portions are extended along at least one extension of first and second corrugation portions. The extended portion supports one side of the reinforcing member. The protrusion portion and the extended portion are formed as single flexible body.