The Pacific Earthquake Engineering Research (PEER) Center has been developing a performance-based earthquake engineering (PBEE) methodology, which is based on explicit determination of performance, e.g., monetary losses, in a probabilistic manner where uncertainties in earthquake ground motion, structural response, damage estimation, and losses are explicitly considered. To carry out the PEER PBEE procedure for a component of the nuclear power plant (NPP) such as the cable tray system, hazard curve and spectra were defined for two hazard levels of the ground motions, namely, operation basis earthquake, and safe shutdown earthquake. Accordingly, two sets of spectral compatible ground motions were selected for dynamic analysis of the cable tray system. In general, the PBEE analysis of the cable tray in NPP was introduced where the resulting floor motions from the time history analysis (THA) of the NPP structure should be used as the input motion to the cable tray. However, for simplicity, a finite element model of the cable tray was developed for THA under the effect of the selected ground motions. Based on the structural analysis results, fragility curves were generated in terms of specific engineering demand parameters. Loss analysis was performed considering monetary losses corresponding to the predefined damage states. Then, overall losses were evaluated for different damage groups using the PEER PBEE methodology.

太平洋地震工程研究 (PEER) 中心一直在开发一种基于性能的地震工程 (PBEE) 方法，该方法基于以概率方式明确确定性能（例如，金钱损失），其中地震地面运动、结构响应的不确定性、损坏估计和损失被明确考虑。为了对核电站 (NPP) 的电缆桥架系统等组件执行 PEER PBEE 程序，定义了两种地面运动危险等级的危险曲线和频谱，即运行基准地震和安全停堆地震. 因此，选择了两组频谱兼容的地面运动来进行电缆桥架系统的动态分析。一般来说，引入了 NPP 中电缆桥架的 PBEE 分析，其中 NPP 结构的时程分析 (THA) 产生的地板运动应用作电缆桥架的输入运动。然而，为简单起见，在选定的地面运动的影响下，为 THA 开发了电缆桥架的有限元模型。根据结构分析结果，根据具体工程需求参数生成脆性曲线。损失分析是在考虑对应于预定义损坏状态的金钱损失的情况下进行的。然后，使用 PEER PBEE 方法评估不同损坏组的总体损失。在选定的地面运动的影响下，为 THA 开发了电缆桥架的有限元模型。根据结构分析结果，根据具体工程需求参数生成脆性曲线。损失分析是在考虑对应于预定义损坏状态的金钱损失的情况下进行的。然后，使用 PEER PBEE 方法评估不同损坏组的总体损失。在选定的地面运动的影响下，为 THA 开发了电缆桥架的有限元模型。根据结构分析结果，根据具体工程需求参数生成脆性曲线。损失分析是在考虑对应于预定义损坏状态的金钱损失的情况下进行的。然后，使用 PEER PBEE 方法评估不同损坏组的总体损失。