Public fear of safety of NPPs reached the highest level due to social insecurity from the Chernobyl and Fukushima NPP accidents. Also, due to possibility of a terrorism or an accident of the radiation containing structures in NPPs, structural design details are being studied in depth by the design engineers to improve its safety from the extreme hazard events. Since PCCV is a last safety barrier in preventing radiation emission to the surrounding environment at a time of a catastrophic event, the safety of PCCV constructed as a bi-directionally prestressed concrete (PSC) structure is the most important requisite in having a safe NPP. In order to better design the structure for an extreme incident, its failure mechanism and resistant capacity under an extreme loading scenario must be precisely evaluated. Therefore, in this study, scaled down bi-directional PSC panels modeled after a PCCV outer wall were constructed to apply a blast followed by a fire load. The experimental data such as the fracture mode, the energy absorption capacity, deflection, prestressing force loss, surface damage, and heat transfer, thermal spalling depth, reinforcement melting were obtained from the tests for the simulation program calibration work. With the calibrated program, the blast and fire simulations of the real scale structures can be performed.

由于切尔诺贝利核事故和福岛核电站事故造成的社会不安全感，公众对核电厂安全的恐惧达到了最高水平。另外，由于恐怖主义的可能性或核电厂中含辐射结构的事故，设计工程师正在深入研究结构设计细节，以提高其在极端危险事件中的安全性。由于PCCV是防止发生灾难性事件时向周围环境辐射的最后一个安全屏障，因此具有双向预应力混凝土（PSC）结构的PCCV的安全性是拥有安全NPP的最重要要求。为了更好地设计极端事件的结构，必须精确评估其在极端载荷情况下的失效机理和抗力。因此，在这项研究中 按比例缩小的双向PSC面板，该面板以PCCV外墙构造为模型，先施加爆炸，然后施加火荷载。从模拟程序校准工作的测试中获得了断裂模式，能量吸收能力，挠度，预应力损失，表面损伤以及传热，热剥落深度，增强熔融等实验数据。使用校准的程序，可以执行真实比例结构的爆炸和火灾模拟。从模拟程序校准工作的测试中获得了钢筋的熔化。使用校准的程序，可以执行真实比例结构的爆炸和火灾模拟。从模拟程序校准工作的测试中获得了钢筋的熔化。使用校准的程序，可以执行真实比例结构的爆炸和火灾模拟。