Experimental investigation for the Secondary Failure Behavior of Partial Wall-Base Juncture Model in 1/4 PCCV

Hyundai Institute of Construction Technology Development (HICTD) has been conducting the project on the research and development of pre-stressed concrete containment vessel (PCCV) that would be sponsored and funded by Korea Atomic Energy Research Institute (KAERI). As a part of this research, an experimental investigation is carried out to examine the secondary failure behavior of PCCV that is expected to occur at the wall-base juncture. The ultimate condition of nuclear power plant containment vessel will be happened under the internal pressure. The internal pressure induces biaxial tensile stress in the containment wall. This research purposes to experimental investigation on the secondary failure. The huge size of PCCV causes to scale down to 1/4 and designed in the partial level. To describe the wall-base juncture, point of inflection which is free flexural point must be the experimental loading point