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锈蚀钢筋混凝土桥墩抗震性能数值模拟

DOI: 10.3969/j.issn.1674-0696.2013.sup.1.07, PP. 756-759

Keywords: 混凝土桥墩,锈蚀钢筋,抗震性能,数值模拟,reinforcedconcretebridgepier,corrodedrebar,anti-seismicperformance,numericalsimulation

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Abstract:

:?锈蚀钢筋混凝土桥墩处于抗震不利状态,因而其抗震滞回性能研究尤为重要。笔者从钢筋截面积减小、屈服强度降低以及钢筋和混凝土黏结性能退化等方面,进行了锈蚀钢筋混凝土结构性能退化机理分析,通过建立锈蚀钢筋混凝土桥墩有限元模型,分析了桥墩在反复荷载作用下的滞回曲线、骨架曲线和耗能性能随锈蚀率的变化,结果与试验吻合较好,证明了模拟锈蚀钢筋混凝土桥墩滞回性能的有效性。

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