| HRB500钢筋的锚固设计及可靠度分析 |
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| 引用本文： | 李艳艳,杜闯,陈向上,刘坤.HRB500钢筋的锚固设计及可靠度分析[J].广西大学学报(自然科学版),2012(4):808-813. |
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| 作者姓名： | 李艳艳 杜闯 陈向上 刘坤 |
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| 作者单位： | 河北工业大学土木工程学院;河北省土木工程技术研究中心;河北工业大学校园规划处 |
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| 基金项目： | 河北省自然科学基金资助项目(E2009000073) |
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| 摘 要： | 为了研究HRB500钢筋的粘结锚固性能,进行了111个配置HRB500钢筋的混凝土试件的拉拔试验,分析了HRB500钢筋的粘结强度、失效状态以及锚固长度的可靠度,建立了HRB500钢筋直锚和机械锚固形式下的粘结强度计算公式,其计算结果与试验值吻合较好;通过可靠度分析,HRB500钢筋的设计锚固长度可按《混凝土结构设计规范》(GB50010-2002)相关公式计算;提出了HRB500钢筋机械锚固长度与其直锚时的基本锚固长度的折算比值表,为工程设计提供了依据。
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| 关 键 词： | HRB500钢筋 粘结锚固 锚固长度 可靠度 |
Design and reliability of HRB500 steel bar anchorage |
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| LI Yan-yan,DU Chuang,CHEN Xiang-shang,LIU Kun.Design and reliability of HRB500 steel bar anchorage[J].Journal of Guangxi University(Natural Science Edition),2012(4):808-813. |
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| Authors: | LI Yan-yan DU Chuang CHEN Xiang-shang LIU Kun |
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| Institution: | 1.College of Civil Engineering,Hebei University of Technology,Tianjin 300401,China; 2.Civil Engineering Technology Research Center of Hebei Province,Tianjin 300401,China; 3.Department of Programming and Construction,Hebei University of Technology,Tianjin 300130,China) |
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| Abstract: | Pull-out tests were carried out on 111 concrete specimen reinforced with HRB500 steel bars to investigate the bond-anchorage performance.The bond strength,the failure status and the reliability of anchorage of HRB500 steel bars were analyzed.The established calculation formula of bond strength for direct anchorage and mechanical anchorage were consistent with the experimental results.The anchorage length could still be calculated according to the formula given by the code for concrete structure design(GB 50010-2002).The ratio table of anchorage length between mechanical anchorage and direct anchorage was proposed,which provided references for engineering project designs. |
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| Keywords: | HRB500 steel bars bond-anchorage anchorage length reliability |
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