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钢筋超高性能混凝土梁抗剪性能试验研究

Baochun CHEN,Qianwen WU,Qingwei HUANG,Xilun MA,Jiazhan SU

Journal of Fuzhou University(Natural Science Edition)（2018）

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Abstract
对11根钢筋超高性能混凝土梁在两点对称加载作用下进行抗剪性能试验,试验参数为钢纤维掺量、剪跨比、纵筋配筋率、配箍率等.试验结果表明,4个参数中钢纤维掺量对梁的抗剪承载力影响最大,其次为剪跨比和纵筋率,配箍率影响最小;钢纤维掺量的增加显著提高了梁的抗剪承载力与抗变形能力,影响梁的破坏形态.根据试验结果与收集到的UHPC梁受剪资料,对基于桁架-拱理论的UHPC梁抗剪计算公式进行了修正.
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