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    朱俊涛, 侯晶强, 李可, 范家俊. 钢绞线网增强ECC与混凝土界面黏结性能试验研究[J]. 应用基础与工程科学学报, 2023, 31(5): 1312-1325. doi: 10.16058/j.issn.1005-0930.2023.05.019
    引用本文: 朱俊涛, 侯晶强, 李可, 范家俊. 钢绞线网增强ECC与混凝土界面黏结性能试验研究[J]. 应用基础与工程科学学报, 2023, 31(5): 1312-1325. doi: 10.16058/j.issn.1005-0930.2023.05.019
    ZHU Juntao, HOU Jingqiang, LI Ke, FAN Jiajun. Experimental Study on Bond Performance Between Steel Wire Mesh Reinforced ECC and Concrete[J]. Journal of Basic Science and Engineering, 2023, 31(5): 1312-1325. doi: 10.16058/j.issn.1005-0930.2023.05.019
    Citation: ZHU Juntao, HOU Jingqiang, LI Ke, FAN Jiajun. Experimental Study on Bond Performance Between Steel Wire Mesh Reinforced ECC and Concrete[J]. Journal of Basic Science and Engineering, 2023, 31(5): 1312-1325. doi: 10.16058/j.issn.1005-0930.2023.05.019

    钢绞线网增强ECC与混凝土界面黏结性能试验研究

    Experimental Study on Bond Performance Between Steel Wire Mesh Reinforced ECC and Concrete

    • 摘要: 为研究钢绞线网增强ECC与混凝土界面黏结性能,以混凝土强度、界面黏结长度、界面黏结宽度和界面处理方式为参数,共设计制作9组27个试件.基于梁铰式界面黏结性能试验,探究了各设计参数对界面黏结性能的影响规律,结果表明:受界面处理方式影响,试件产生3种破坏形态:界面剥离、钢绞线断裂及混凝土劈裂破坏.钢绞线网增强ECC与混凝土界面承载力随混凝土强度和界面粗糙度的增大而增大,在试验参数设计范围内提高约70%;界面黏结宽度的增大虽不会影响界面承载力,但使界面峰值黏结应力由1.65MPa降低至1.04MPa,降幅达35%;界面黏结长度对界面峰值黏结应力影响较小,但在有效黏结长度范围内,界面承载力随其值增大而提高.

       

      Abstract: In order to investigate the bond performance between steel wire mesh reinforced ECC and concrete, a total of 27 specimens in 9 groups were designed for beam-hinge test.The effects of concrete strength, bonding length, bonding width and interface treatment method on the interfacial bond behavior were studied.The results show that the tested specimens were produced three different failure modes:interface peeling off, steel wire fracture, and concrete splitting, which were mainly caused by different interface treatments.The interfacial bearing capacity of steel wire mesh reinforced ECC and concrete increases with the increase of concrete strength and interface roughness, and it increases by about 70% within the design range.As the interfacial bonding width increases, the interfacial bearing capacity is almost unchanged, while the ultimate bond stress decreases by 35%, from 1.65MPa to 1.04MPa.Within the effective bonding length, the interface bonding length has little effect on the ultimate bond stress, but it has a positive effect on the interfacial bearing capacity.

       

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