广东工业大学学报 ›› 2022, Vol. 39 ›› Issue (02): 120-124.doi: 10.12052/gdutxb.210019

• 综合研究 • 上一篇    下一篇

ECC与钢筋黏结性能试验研究

翟可仪1, 叶明2, 张耀文3, 姜海波1, 肖杰1, 梅塨镛1, 黄梓槺1   

  1. 1. 广东工业大学 土木与交通工程学院, 广东 广州 510006;
    2. 广州市北二环交通科技有限公司, 广东 广州 510062;
    3. 广东三和管桩股份有限公司, 广东 中山 528414
  • 收稿日期:2021-02-01 出版日期:2022-03-10 发布日期:2022-04-02
  • 通信作者: 肖杰(1986-)，男，讲师，主要研究方向为酸性环境中混凝土的耐久性、超高性能混凝土等，E-mail：xiaojie2017@gdut.edu.cn
  • 作者简介:翟可仪(1995-)，男，硕士研究生，主要研究方向为FRP复合材料、超高性能混凝土
  • 基金资助:
    国家自然科学基金资助项目( 51808033)

An Experimental Research on Bonding Performance of ECC and Rebar

Zhai Ke-yi1, Ye Ming2, Zhang Yao-wen3, Jiang Hai-bo1, Xiao Jie1, Mei Gong-yong1, Huang Zi-kang1   

  1. 1. School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, China;
    2. Guangzhou Beierhuan Transportation Technology Co., Ltd., Guangzhou 510062, China;
    3. Guangdong Sanhe Building Materials Group Co., Ltd., Zhongshan 528414, China
  • Received:2021-02-01 Online:2022-03-10 Published:2022-04-02

HTML

PDF (PC)

2430

摘要： 工程水泥基复合材料(Engineered cementitious composite, ECC)是一种新型混凝土材料，具有应变硬化、裂缝控制等特点，将其应用于实际工程中可显著改善结构构件的力学性能。而钢筋与ECC之间的黏结性能是两者结合共同发挥协同作用的基础，因此本文通过中心拉拔试验研究锚固长度、保护层厚度、纤维掺量对钢筋与ECC的影响。试验结果表明，锚固长度的变化对于光圆钢筋和带肋钢筋的黏结性能影响不一致，不同保护层厚度的试件发生了不同的失效模式，极限黏结应力会随着纤维体积掺量的增加有显著提高。

关键词: 工程水泥基复合材料, 中心拉拔试验, 黏结性能

Abstract: Engineered cementitious composite (ECC) is a new type of concrete material, which has the characteristics of strain hardening and multiple cracks. Its application in engineering practice can significantly improve the mechanical properties of structural members. The bond performance between steel bar and ECC is the basis of their joint work. Therefore,the influence of steel bar diameter, embedment length and cover depth of steel bar and ECC through central pull-out test are studied.The test results show that the change of bond length has different effects on the bonding performance of the two surface forms of steel bar. The specimens with different thickness of protective layer have different failure modes, and the ultimate bond stress will increase significantly with the increase of fiber content.

Key words: engineered cementitious composite, center pullout test, bonding performance

中图分类号: 

  • TU377
[1] LI V C, WANG S, WU C. Tensile strain-hardening behavior of polyvinyl alcohol engineered cementitious composite (PVA-ECC) [J]. Aci Materials Journal, 2001, 98(6): 483-492.
[2] ZHOU J, QIAN S, YE G, et al. Improved fiber distribution and mechanical properties ofengineered cementitious composites by adjusting the mixing sequence [J]. Cement and Concrete Composites., 2012, 34(3): 342-348.
[3] MIRZA S M, HOUDE J. Study of bond stress-sliprelationships in reinforced concrete [J]. ACI Structural Journal, 1979, 76(1): 19-46.
[4] 高向玲, 李杰. 钢筋与混凝土黏结强度的理论计算与试验研究[J]. 建筑结构, 2005, 35(4): 10-12.
GAO X L, LI J. Theory and test on computative model of local bond strength between reinforcing bars and concrete [J]. Building Structure, 2005, 35(4): 10-12.
[5] 徐有邻. 变形钢筋-混凝土黏结锚固性能的试验研究[D]. 北京: 清华大学, 1990.
[6] DENG M K, PAN J J, SUN H Z, et al. Bond behavior of steel bar embedded in engineered cementitious composites under pullout load [J]. Construction and Building Materials, 2018(168): 705-714.
[7] CAI J M, PAN J L, TAN J W, et al. Bond behaviours of deformed steel rebars in engineered cementitious composites (ECC) and concrete [J]. Construction and Building Materials, 2020, 252: 119082.
[8] 王洪昌. 超高初性水泥基符合材料与钢筋黏结性能的试验研究[D]. 大连: 大连理工学. 2007.
[9] 朱俊涛, 赵亚楼, 李燚, 等. 高强不锈钢绞线网与工程水泥基复合材料黏结锚固性能试验[J]. 复合材料学报, 2020, 37(7): 1731-1742.
ZHU J T, ZHAO Y L, LI Y, et al. Experiment on bonding and anchoring performance between high-strength stainless steel wire mesh and engineered cementitious composites [J]. Acta Materiae Compositae Sinica, 2020, 37(7): 1731-1742.
[10] 刘曙光, 邓轶涵, 张菊, 等. PVA纤维水泥基复合材料与钢筋黏结性能研究[J]. 功能材料, 2016, 47(1): 1110-1116.
[11] 米渊, 潘金龙, 周青山. 钢筋与纤维增强水泥基复合材料黏结性能试验研究[J]. 建筑结构, 2016, 46(15): 69-73.
MI Y, PAN J L, ZHOU Q S. Experimental study on bond behavior between steel bars and patterned verticalalignment engineered cementitious composite [J]. Building Structure, 2016, 46(15): 69-73.
[12] 安明喆, 张盟, 季文玉. 光圆钢筋与活性粉末混凝土的黏结性能研究[J]. 铁道学报, 2007(1): 90-94.
AN M Z, ZHANG M, JI W Y. The research of bond capability between round steel bars and reactive powder concrete [J]. Journal of the China Railway Society, 2007(1): 90-94.
[1] 魏伟, 熊哲. FRP筋混凝土锚固长度的试验研究[J]. 广东工业大学学报, 2020, 37(03): 101-105.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
No Suggested Reading articles found!
版权所有 © 2017 《广东工业大学学报》编辑部
地址：广州市东风东路729号广东工业大学 邮编：510090
电话：020-37626653,020-37626139,020-37626396
邮箱：xbzrb@gdut.edu.cn
本系统由北京玛格泰克科技发展有限公司设计开发