【摘要】 国内外尚缺乏针对高墩桥梁抗震的设计方法。介绍了模态pushover分析方法与能力谱法相结合后的改进模态pushover分析方法,并以实例进行高阶振型对高墩桥梁抗震能力的影响分析。将其计算结果与常规加载的pushover分析方法的计算结果进行比较,分析表明在高墩桥梁中不能忽略高阶振型的影响。更多还原

【Abstract】 The method of seismic design for the high pier bridge is not yet available home and abroad. Introduced hereby is the modal pushover analysis modified by incorporating the modal pushover analysis with the capacity-spectrum method for analysis with examples of the influence from the high modal onto the antiseismic capacity of the high-pier bridge. The results are then compared with those from the calculation using the normally loaded pushover analysis, which indicates that the impact from the high modal onto high-pier bridges cannot be ignored.更多还原