Development on seismic evaluation technique for nuclear equipment and pipes based on seismic energy input

一般来说，抗震评估是以荷载为基础的。载荷是一个瞬时参数，因此它不能估计地震的持续时间和余震的次数。因此，在这项研究中采用了地震能量输入。地震能量输入可以估计地震的持续时间和余震次数。通过对不同试件的试验，确定了地震能量输入与破坏之间的关系。因此，地震能量输入适用于地震评价。

In general, seismic evaluation is based on a load. A load is a momentary parameter, so it cannot evaluate duration time of an earthquake and the number of aftershocks. Therefore a seismic energy input was applied in this study. The seismic energy input can evaluate duration time of an earthquake and the number of aftershocks. As a result of experiments using various specimens, relationships between the seismic energy input and failure were confirmed. Therefore seismic energy input is applicable to seismic evaluation.