One of the main drawbacks of conventional incremental dynamic analysis (IDA) is the questionable eligibility of a selected record suite as an appropriate representative of different intensity levels according to probabilistic seismic hazard analysis. The present study proposes an alternative approach to select a suitable set of ground motions at each intensity level by considering the vector of intensity measures (IMs) correlated with an engineering demand parameter (EDP) and the associated weight vectors. Piecewise incremental dynamic analysis (PIDA) is performed using hazard-consistent record suites for the seismic assessment of structures. The PIDA results can present a more reliable prediction of the seismic performance of buildings due to the higher accuracy of this method in selecting ground motions compared to the adaptive incremental dynamic analysis (AIDA), the hazard-consistent IDA, and the conventional IDA conducted by two common record selection methods, particularly for greater values of damage states.

传统增量动态分析 (IDA) 的主要缺点之一是，根据概率地震危险性分析，所选记录套件是否适合作为不同强度级别的适当代表是有问题的。本研究提出了一种替代方法，通过考虑与工程需求参数 (EDP) 相关的强度度量 (IM) 向量和相关的权重向量，在每个强度级别选择一组合适的地面运动。分段增量动态分析 (PIDA) 是使用危险一致记录套件进行的，用于结构的地震评估。