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无腹筋玄武岩纤维筋再生混凝土梁抗剪性能

白雅嘉,  刘华新,  李庆文,  王学志,  彭长岭

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文章导航 > 工业建筑  > 2020 >  50(4): 156-161,137
白雅嘉, 刘华新, 李庆文, 王学志, 彭长岭. 无腹筋玄武岩纤维筋再生混凝土梁抗剪性能[J]. 工业建筑, 2020, 50(4): 156-161,137. doi: 10.13204/j.gyjz202004027
引用本文: 白雅嘉, 刘华新, 李庆文, 王学志, 彭长岭. 无腹筋玄武岩纤维筋再生混凝土梁抗剪性能[J]. 工业建筑, 2020, 50(4): 156-161,137. doi: 10.13204/j.gyjz202004027
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BAI Yajia, LIU Huaxin, LI Qingwen, WANG Xuezhi, PENG Changling. SHEAR BEHAVIOR OF RECYCLED CONCRETE BEAMS WITH BASALT FIBER REINFORCEMENT WITHOUT WEB REINFORCEMENT[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(4): 156-161,137. doi: 10.13204/j.gyjz202004027
Citation: BAI Yajia, LIU Huaxin, LI Qingwen, WANG Xuezhi, PENG Changling. SHEAR BEHAVIOR OF RECYCLED CONCRETE BEAMS WITH BASALT FIBER REINFORCEMENT WITHOUT WEB REINFORCEMENT[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(4): 156-161,137. doi: 10.13204/j.gyjz202004027
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无腹筋玄武岩纤维筋再生混凝土梁抗剪性能

doi: 10.13204/j.gyjz202004027

  • 辽宁工业大学土木建筑工程学院, 辽宁锦州 121001

基金项目: 

辽宁省自然科学基金项目（2015020208）。

详细信息
    作者简介:

    白雅嘉,男,1994年出生,硕士研究生。

    通讯作者:

    刘华新,lgliuhuaxin@163.com。

SHEAR BEHAVIOR OF RECYCLED CONCRETE BEAMS WITH BASALT FIBER REINFORCEMENT WITHOUT WEB REINFORCEMENT

  • College of Civil Engineering, Liaoning University of Technology, Jinzhou 121001, China

    摘要
  • 摘要: 通过对再生粗骨料取代率、剪跨比、配筋率为参考因素的玄武岩复材（BFRP）筋再生混凝土梁抗剪性能试验研究，分析梁的裂缝扩展和破坏模式以及再生粗骨料取代率、剪跨比和配筋率对试验梁抗剪承载力的影响，并将试验结果与中、美、日、加四个国家的技术标准推荐算式的计算结果进行比较。结果表明：BFRP筋混凝土梁主要发生两种剪切破坏，其中9根试验梁发生剪压破坏，2根试验梁发生斜拉破坏；BFRP筋混凝土梁挠度随BFRP配筋率和剪跨比的增大均减小，当再生粗骨料取代率为30%、60%时，BFRP筋再生混凝土梁挠度与BFRP筋普通混凝土梁差别不大；BFRP筋再生混凝土梁抗剪承载力低于BFRP筋普通混凝土梁；美国标准ACI 440.1R-15的计算值最保守，中国标准GB 50608—2010、日本标准JSCE 1997次之，而加拿大标准CSA.S 806-12在计算BFRP筋再生混凝土梁抗剪承载力时吻合度更好并具有安全度。
    Abstract: Through the experimental research on the shear resistance of BFRP (Basalt Fiber-Reinforced Polylmer) reinforced concrete beams considering recycled aggregate replacement ratio, shear span ratio and reinforcement ratio, the effects of crack propagation, failure mode, replacement ratio of recycled coarse aggregate, shear span ratio and reinforcement ratio of BFRP bars on the shear capacity of the beams were analyzed, and the test results were compared with the four national codes of China, America, Japan and Canda. The results showed that there were two kinds of shear failure of recycled concrete beams reinforced with BFRP bars. Nine test beams were shear-compression damage and two test beams were cable-stayed damage; the deflection of BFRP reinforced concrete beams decreased with the increase of BFRP reinforcement ratio and shear span ratio. When the replacement ratio of recycled coarse aggregate was 30% and 60%, the deflection of BFRP reinforced recycled concrete beams was not significantly different from that of BFRP reinforced ordinary concrete beams. The shear capacity of recycled concrete beams reinforced with BFRP bars was lower than that of ordinary concrete beams reinforced with BFRP bars;at present, the calculation value of ACI 440.1R-15 was the most conservative, and GB 50608-2010 and JSCE 1997 took the second place, while CSA.S 806-12 had better consistency and safety in calculating the shear bearing capacity of recycled concrete beams reinforced with BFRP bars.
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    • 参考文献(21)
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  • 收稿日期:  2019-09-06

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