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钢衬壳热屈曲问题是核工程安全壳设计中的主要问题，但实验研究方面的文章发表得不多文中以200兆瓦核电站安全壳中钢衬壳为研究对象，采用局部1：1模型，测得了钢衬壳热屈曲温度和应变载荷，给出了钢衬壳屈曲和初始后屈曲过程中挠度和温度关系、以及膜应变和温度关系，实验测得钢衬壳具有局域屈曲的现象，实验屈曲载荷与理论结果符合较好
The thermal buckling problem of steel liner is the main problem in the design of containment for nuclear engineering. However, there are not many articles published in the experimental research. Taking the steel lined casing of the containment of 200 MW nuclear power plant as the research object, the local 1: 1 model, The thermal buckling temperature and strain load of the steel shell were measured. The relationship between deflection and temperature and the relationship between film strain and temperature during the buckling and initial post-buckling of the steel shell were given. The local buckling of the steel shell was measured, The experimental buckling load agrees well with the theoretical result