Abstract: The buckling problem of the liner shells is a major problem in reactor containment's design, but few experimental results have been published. In this paper, we carry out the experimental research for the local 1:1 models of the 200MW RCCV. Buckling temperature and strain loads of liner shells are given. The relation of temperature and deflection or membrane strain during buckling are also presented. The results show that the liners are easier to buckle in the local area than in the whole area between two ...