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新型抗拔不抗剪连接件抗拔性能试验

, PP. 38-45

Keywords: 桥梁工程,抗拔不抗剪连接件,抗拔试验,抗拔性能,承载力,组合梁

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Abstract:

?针对可有效改善组合梁负弯矩区受力性能的新型抗拔不抗剪连接件,研究了影响该连接件抗拔性能的因素,设计了3个不同参数的抗拔不抗剪连接件试件并进行抗拔性能试验。根据试验结果分析了抗拔不抗剪连接件抗拔性能与连接件尺寸的关系,提出了其承载力简化设计公式与构造措施要求。研究结果表明:试件表现出混凝土冲切破坏和连接件腹板拉断2种破坏形态;新型连接件具有良好的抗拔性能,影响抗拔性能的主要因素为连接件的尺寸。

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