Containment Buildings are primarily designed in the form of single containment building or double containment building. United States preferred designing a single containment building, but European countries are located adjacent to each other, have regulated double containment building design as a regulatory requirement and reinforces safety to eliminate the possibility of massive release of radioactive material. In recent years, demands for nuclear power plants designed as double containment building have been increasing.

This document compared the functional and structural characteristics of single containment building and double containment building and reviewed the design analysis of double containment building and the application of construction. method. In addition, the analysis of double containment building design was performed to suggest the design adequacy and design optimization from a structural point of view.

The analysis report of the containment building design is reviewed with regard to the internal and external hazards that can be critical factors for the containment building design. The construction methods of double containment building which have no experience in Korea were discussed. The design improvement plan and structural design of double containment building were proposed from the viewpoint of the layout.

In the future, comprehensive and detailed review of double containment structure, system, radiation shielding, various loads, temperature, pressure, hazards, and other extreme environments should be carried out. In addition, it is necessary to improve the economical efficiency and shorten the construction period of the nuclear power plant through the wall thickness optimization of the double containment building.