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Study on interface shear characteristics of PVA-ECC composite steel bridge deck

  • Jianjun Zhao
  • , Changwang Yan*
  • , Shuguang Liu
  • , Ju Zhang
  • , Yanbo Zhang
  • *Corresponding author for this work
  • Inner Mongolia University of Technology

Research output: Contribution to journalArticlepeer-review

Abstract

There are various forms of damage caused by the insufficient shear stress of the bonding coat, if not handled properly, it will lead to serious early damage of the pavement structure. In order to improve the shear resistance of traditional bonding coat, a new pavement method for steel deck is proposed. According to the different particle size and content of crushed stone, 9 kinds of mix proportion were designed. The shear failure form of specimen with different mix proportion is analyzed. Based on the Popovics constitutive model and the piecewise simplified model, the Shear stress-Shear slip (τ-δ) curve of the specimen is described. In addition, a damage model based on interface shear stress and interface shear rigidity is proposed. Finally, based on the engineering case of Mafang bridge in Guangdong province, the effectiveness and potential value of the pavement method are verified.

Original languageEnglish
Pages (from-to)2018-2034
Number of pages17
JournalRoad Materials and Pavement Design
Volume23
Issue number9
DOIs
StatePublished - 2022

Keywords

  • PVA-ECC
  • Steel deck pavement
  • bonding coat
  • crushed stone content
  • crushed stone particle size
  • shear resistance

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