Posttest Analysis of a 1:6-Scale Reinforced Concrete Reactor Containment Building.

摘要

In an experiment conducted at Sandia National Laboratories, a 1:6-scale model of a reinforced concrete light water reactor containment building was pressurized with nitrogen gas to more than three times its design pressure. The pressurization produced one large tear and several smaller tears in the steel liner plate that functioned as the primary pneumatic seal for the structure. The report describes posttest finite element analyses of the 1:6-scale model test and compares pretest predictions of the structural response to the experimental results. Strains and displacements calculated in axisymmetric finite element analyses of the 1:6-scale model are compared to strains and displacements measured in the experiment. Detailed analyses of the liner plate are also described in the report. The results from these analyses indicate that the primary mechanisms that initiated the tear can be captured in a two-dimensional finite element model. Furthermore, the analyses show that studs which were used to anchor the liner to the concrete wall, played an important role in initiating the liner tear.