铝合金板-混凝土界面粘结-滑移性能双面剪切试验研究

陈钰; 黄海林; 姜德文; 张明亮

doi:10.11835/j.issn.2096-6717.2021.153

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铝合金板-混凝土界面粘结-滑移性能双面剪切试验研究

土木工程 | 更新时间：2023-09-19

- 铝合金板-混凝土界面粘结-滑移性能双面剪切试验研究
- Double-sided shear experimental study of bond-slip performance of aluminum alloy plate-concrete interface
- 土木与环境工程学报 2023年45卷第5期页码：181-190
- 作者机构：
  
  1.湖南科技大学，土木工程学院，湖南湘潭 411201
  2.湖南科技大学，湖南省智慧建造装配式被动房工程技术研究中心，湖南湘潭 411201
  3.湖南建工集团有限公司，长沙 410004
- 作者简介：
  
  陈钰（1997- ），女，主要从事基于新材料的既有结构修复与加固研究，E-mail：chenyulye@163.com。
  黄海林（通信作者），男，副教授，博士，E-mail：hhlvsgenius@163.com。
- 基金信息：
  
  湖南省教育厅优秀青年项目(19B188);湖南省自然科学基金(2018JJ3161);湖南建工集团基础研究项目(JGJTK-2018003)
- DOI：10.11835/j.issn.2096-6717.2021.153
  中图分类号： TU317.1
- 收稿：2021-06-16，
  
  纸质出版：2023-10-25
- 稿件说明：
移动端阅览
陈钰, 黄海林, 姜德文, 等. 铝合金板-混凝土界面粘结-滑移性能双面剪切试验研究[J]. 土木与环境工程学报, 2023,45(5):181-190.

CHEN Yu, HUANG Hailin, JIANG Dewen, et al. Double-sided shear experimental study of bond-slip performance of aluminum alloy plate-concrete interface[J]. Journal of Civil and Environmental Engineering, 2023, 45(5): 181-190.
陈钰, 黄海林, 姜德文, 等. 铝合金板-混凝土界面粘结-滑移性能双面剪切试验研究[J]. 土木与环境工程学报, 2023,45(5):181-190. DOI： 10.11835/j.issn.2096-6717.2021.153.

CHEN Yu, HUANG Hailin, JIANG Dewen, et al. Double-sided shear experimental study of bond-slip performance of aluminum alloy plate-concrete interface[J]. Journal of Civil and Environmental Engineering, 2023, 45(5): 181-190. DOI： 10.11835/j.issn.2096-6717.2021.153.

摘要

铝合金板具有强度高、耐蚀性及延性好等优点，可用于潮湿、高寒等复杂恶劣环境中混凝土结构的加固，但铝合金板-混凝土的界面性能是影响铝合金板加固混凝土结构效果的关键。进行48个铝合金板-混凝土试件的界面双剪试验，分析铝合金板厚度、铝合金板粘结长度及结构胶种类对界面破坏机理、剥离承载力、粘结剪应力及滑移演化规律的影响。结果表明：增加铝合金板厚度、铝合金板粘结长度以及采用低弹性模量的结构胶能有效提高界面的剥离承载力，但铝合金板粘结长度应控制在有效粘结长度范围内；试件的滑移量随着粘结长度的增加而增大，且铝合金板越厚，试件的滑移量越小。将双直线模型、双曲线模型、Nakaba模型计算结果与试验结果进行对比分析，Nakaba模型与铝合金板-混凝土粘结滑移曲线整体吻合较好。

Abstract

Aluminum alloy plate has the advantages of high strength

good ductility

good corrosion resistance

which can be used to strengthen concrete structures in damp

cold and harsh environments. However

the interface performance of aluminum alloy plate-concrete is the key factor which affect the effect of concrete reinforced by aluminum alloy plate. Based on this

the interfacial double shear tests of 48 aluminum alloy plate-concrete specimens were completed. The influence of bond thickness of aluminum alloy plate

bond length of aluminum alloy plate and structural adhesive type on the interface failure mechanism

interfacial peeling bearing capacity

bond shear stress and the slip evolution were analyzed. The results show that the peeling capacity of the interface can be effectively improved by increasing the thickness of the aluminum alloy plate

the bonding length of the aluminum alloy plate and using the structural adhesive with low elastic modulus

but the bonding length of the aluminum alloy plate should be controlled within the range of the limited bonding length. At the same time

with the increase of bond length

the slip of specimen increases

and the thicker the bond thickness of aluminum plate

the lower the slip of the specimen. Use double-line model

hyperbolic model

Nakaba model and test results for comparative analysis. The results show that the aluminum alloy plate-concrete bond slip is in good agreement with the curve of the Nakaba model.

关键词

Keywords

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