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高强箍筋约束超高性能混凝土方形短柱轴压承载力计算方法

姚军锁 邓宗才

姚军锁, 邓宗才. 高强箍筋约束超高性能混凝土方形短柱轴压承载力计算方法[J]. 工业建筑, 2021, 51(2): 26-31. doi: 10.13204/j.gyjzG19111803
引用本文: 姚军锁, 邓宗才. 高强箍筋约束超高性能混凝土方形短柱轴压承载力计算方法[J]. 工业建筑, 2021, 51(2): 26-31. doi: 10.13204/j.gyjzG19111803
YAO Junsuo, DENG Zongcai. A CALCULATION METHOD OF AXIAL COMPRESSIVE BEARING CAPACITY FOR SHORT SQUARE COLUMNS OF ULTRA-HIGH PERFORMANCE CONCRETE CONFINED BY HIGH-STRENGTH STIRRUPS[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(2): 26-31. doi: 10.13204/j.gyjzG19111803
Citation: YAO Junsuo, DENG Zongcai. A CALCULATION METHOD OF AXIAL COMPRESSIVE BEARING CAPACITY FOR SHORT SQUARE COLUMNS OF ULTRA-HIGH PERFORMANCE CONCRETE CONFINED BY HIGH-STRENGTH STIRRUPS[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(2): 26-31. doi: 10.13204/j.gyjzG19111803

高强箍筋约束超高性能混凝土方形短柱轴压承载力计算方法

doi: 10.13204/j.gyjzG19111803
基金项目: 

北京市教委科技重点项目(KZ201810005008)。

详细信息
    作者简介:

    姚军锁,男,1994年出生,硕士研究生。

    通讯作者:

    邓宗才,dengzc@bjut.edu.cn。

A CALCULATION METHOD OF AXIAL COMPRESSIVE BEARING CAPACITY FOR SHORT SQUARE COLUMNS OF ULTRA-HIGH PERFORMANCE CONCRETE CONFINED BY HIGH-STRENGTH STIRRUPS

  • 摘要: 为研究高强箍筋约束超高性能混凝土(UHPC)方形短柱的轴压承载力计算方法,对9根箍筋约束UHPC方形短柱进行了轴压试验,并结合所收集相关文献数据,在Richart破坏准则的基础上给出了约束UHPC峰值应力计算式,建议了适用于UHPC强度为130~180 MPa、钢纤维体积掺率为1.5%~2%、体积配箍率为1.5%~5.5%的高强箍筋约束UHPC方形短柱的轴压承载力算式,并与中、美设计标准进行对比。结果表明:建立的考虑钢纤维桥联作用及箍筋约束提高作用的承载力算式,其计算值与试验值吻合度较高,按GB 50010—2010《混凝土结构设计规范》预测的约束UHPC承载力比ACI 318-2014《混凝土结构建筑规范要求》保守;UHPC柱拟配置600 MPa以上高强箍筋,以提高约束效果;非螺旋式箍筋约束UHPC方形短柱的箍筋间距上限值可按GB 50010—2010取值。
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出版历程
  • 收稿日期:  2020-05-25
  • 网络出版日期:  2021-06-04

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