足够数量地震输入的增量动力分析方法(IDA方法)是目前最为真实和先进的模拟结构抗震性能手段,而静力推覆分析方法(Pushover Analysis方法)操作简单,更为实用,可以较好揭示结构从弹性到屈服直至倒塌过程中构件的工作状态。采用2种方法对钢筋混凝土核心筒算例进行评估,并作对比分析。结果表明,采用IDA方法得到的4个性能水平与Pushover方法得到的指标限值有一定误差,但均在一定范围之内,采用IDA方法得到顶点位移角限值偏大;采用单一侧力模式的Pushover方法无法完全体现高阶振型及地震动等因素的影响,造成Pushover方法分析结果与结构实际弹塑性地震响应有一定差异。 The incremental dynamic analysis method (IDA method) of a sufficient number of seismic inputs is the most realistic and advanced method for simulating seismic performance of structures. Pushover analysis (Pushover Analysis method) is simple and practical, and can be well revealed Structure from the elastic to yield until the collapse of the working process of components. Two methods were used to evaluate the core tube of reinforced concrete and the comparative analysis was made. The results show that there are some errors between the four performance levels obtained by the IDA method and the index limits obtained by the Pushover method, but all of them are within a certain range. Using the IDA method, the peak displacement angle limit is too large. The Pushover method can not fully reflect the influence of high mode shapes and ground motions, which results in some differences between Pushover method analysis and actual structural elasto-plastic seismic response.