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科技导报  2015 

往复荷载下配置高强钢筋桥墩滞回性能试验

DOI: 10.3981/j.issn.1000-7857.2015.06.016, PP. 97-100

Keywords: 桥墩,高强钢筋,剪跨比,滞回特性

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Abstract:

为研究配置HRB500高强钢筋的混凝土桥墩的滞回性能,进行了4个混凝土桥墩试件的低周往复加载试验,分析剪跨比、纵筋强度和箍筋强度对混凝土桥墩受力破坏形态的影响,对比配置高强钢筋桥墩与普通钢筋桥墩,两者滞回性能的异同。结果表明,随着箍筋的有效约束下桥墩试件剪跨比的增加,试件的变形能力增加,滞回曲线更饱满,刚度退化减缓。配置高强纵筋及高强箍筋桥墩试件的刚度退化、滞回曲线等滞回特性均优于配置普通钢筋桥墩试件,同时提高了试件的承载能力及变形能力。

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