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工程力学  2015 

高强钢筋RPC简支梁抗剪承载力及延性研究

DOI: 10.6052/j.issn.1000-4750.2014.04.S056

Keywords: 高强钢筋,活性粉末混凝土,简支梁,受剪承载力,剪切延性

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Abstract:

通过6根高强钢筋活性粉末混凝土简支梁的抗剪试验,得到了不同因素对梁的破坏形态、抗剪承载力及其剪切延性的影响规律。研究表明:剪跨比、配箍率和纵筋率是影响高强钢筋活性粉末混凝土简支梁抗剪性能的主要因素,其中剪跨比影响最大;在适宜的剪跨比条件下,随着纵筋率的提高,无腹筋梁的承载力与斜裂缝倾角增大,剪切延性降低,但有腹筋梁的斜裂缝倾角变化不太明显;提高配箍率不仅可以增强梁的抗剪承载力,而且能够有效改善其剪切延性。

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