Double-sided shear experimental study of bond-slip performance of aluminum alloy plate-concrete interface
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1.a.College of Civil Engineering, Hunan Xiangtan 411201, P. R. China;2.b.Hunan Engineering Research Center for Intelligently Prefabricated Passive House, Hunan University of Science and Technology, Hunan Xiangtan 411201, P. R. China;3.Hunan Construction Engineering Group Co., Ltd., Changsha 410004, P. R. China

Clc Number:

TU317.1

Fund Project:

Outstanding Young Foundation of Education Bureau of Hunan (No. 19B188); Natural Science Foundation of Hunan (No. 2018JJ3161); Basic Research Project of Hunan Construction Industry Group (No. JGJTK-2018003)

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    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.

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陈钰,黄海林,姜德文,张明亮.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(中英文),2023,45(5):181~190

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History
  • Received:June 16,2021
  • Revised:
  • Adopted:
  • Online: August 24,2023
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