Abstract
Reinforced concrete structures such as a containment vessel, a support structure of the reactor, piping systems and facilities for storing high level radioactive waste in nuclear power plants are designed assuming the conditions that those structures are exposed to high temperature conditions. In the previous papers, the author elucidated the temperature dependence of the properties of concrete and reinforcement and the influence of differential thermal expansive strain between concrete and reinforcement on the behavior of reinforced concrete tension and flexural members in order to contribute to the rationalization of the design method. In this paper the influence of high temperature conditions on the flexural behavior and strength capacities of RC members with axial force were made clear and those estimation methods were suggested.
