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RC桥墩抗震性能分析模型与验证

DOI: 10.13197/j.eeev.2014.01.71.lizx.009, PP. 71-80

Keywords: 塑性铰模型,纤维截面,RC桥墩,拟静力试验,振动台试验

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Abstract:

本文提出一种基于塑性铰模型的墩柱构件模拟方法,采用Mander提出的混凝土本构模型和Kunnath等建议的钢筋本构模型构造不同的纤维截面,经过参数分析,对圆形截面和矩形截面钢筋混凝土(RC)桥墩的拟静力试验以及足尺RC桥墩的振动台试验进行了数值模拟分析。同时,分析了该模型在模拟RC桥墩时的一些关键参数及其影响规律。研究表明本文提出的纤维截面塑性铰模型模拟结果与实验结果吻合较好,能够合理反映RC桥墩的实际工作状态,对其抗震性能的模拟精度较高,实用性强。

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