Characteristics of earthquake strong ground motions play an important role in the calculation of seismic-induced risk imposed on the structures. Distinguished features exist in movements recorded near seismic sources, as a result of a substantial amount of energy in a short period of record arrival time. In this article, seismic risk analysis of concrete moment-resisting frames due to near-fault strong ground motion is calculated and compared with that of caused by far-field strong ground motions. To achieve this goal, three moment-resisting frames with 4, 6, and 10 stories were designed based on international seismic design code. These frames are modeled applying modified Ibarra–Krawinkler moment–rotation nonlinear model in which strength and stiffness deterioration are involved. Seismic risk analysis of the frames is implemented using the Pacific Earthquake Engineering Research Center approach. Through this approach, probabilistic seismic hazard, probabilistic structural demand, probabilistic structural damage, and probabilistic loss curves are combined. Mean annual frequency of exceedance of seismic-induced losses presents probabilistic seismic risk of the sampled frames. According to the achieved results, the four-story frame (representative of low-rise frames) is more prone to be affected by near-fault strong ground motions in view of calculated seismic-induced risks.

地震强烈地震动的特征在计算地震引起的结构风险方面起着重要作用。由于在短的记录到达时间内大量的能量，在地震源附近记录的运动中存在杰出的特征。本文计算了近断层强烈地面运动引起的混凝土抗弯框架的地震风险分析，并将其与远场强地面运动引起的抗震框架进行了比较。为了实现这一目标，根据国际抗震设计规范设计了三个分别为4、6和10层的抗弯框架。这些框架是使用修正的Ibarra-Krawinkler矩-旋转非线性模型建模的，其中涉及强度和刚度退化。使用太平洋地震工程研究中心的方法对框架进行地震风险分析。通过这种方法，概率地震危险性，概率结构需求，概率结构破坏和概率损失曲线被组合在一起。超过每年由地震引起的损失的频率代表了抽样框架的概率地震风险。根据已获得的结果，考虑到地震诱发的风险，四层框架（代表低层框架）更容易受到近断层强烈地面运动的影响。超过每年由地震引起的损失的频率代表了抽样框架的概率地震风险。根据已获得的结果，考虑到地震诱发的风险，四层框架（代表低层框架）更容易受到近断层强烈地面运动的影响。超过每年由地震引起的损失的频率代表了抽样框架的概率地震风险。根据已获得的结果，考虑到地震诱发的风险，四层框架（代表低层框架）更容易受到近断层强烈地面运动的影响。