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T形开孔肋连接件的极限承载力计算及影响因素分析

, PP. 86-93

Keywords: 桥梁工程,T形开孔肋连接件,试验研究,极限承载力,组合结构

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Abstract:

？为了得到T形开孔肋连接件的极限承载力及其影响因素,设计、制作了15组不同的T形开孔肋连接件试件共计45个,进行了极限承载力和破坏形式测试试验,分析了不同因素对T形开孔肋连接件承载力和破坏形式的影响;并根据试验结果建立了可以用于T形开孔肋极限承载力的计算公式。研究结果表明:T形开孔肋连接件抗剪承载力大、延性好;T形开孔肋的厚度、开孔大小和混凝土的强度对T形开孔肋连接件承载力影响较为显著;T形开孔肋的腹板高度、翼缘的数量、贯穿钢筋的直径和T形开孔肋的翼缘长度对其承载力有一定的影响;研究结果可为T形开孔肋的设计和应用提供依据。

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