INTERFACE BOND BEHAVIOUR BETWEEN MULTI-PLY CFRP SHEETS AND CONCRETE

Mitsuhiko Ozaki, Yasuhiko Sato, Eiji Yoshida, Aya Takeuchi, Yuta Yamada

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this study, single-lap shear tests were conducted using carbon fiber-reinforced polymer (CFRP) sheets. The parameters were the stiffness of the multi-ply CFRP sheets and bond length. Furthermore, the bond length and bond width were made larger than that in the previous experiments, in order to approach the actual reinforcement. Consequently, within the range of these tests, the debonding load increased as the number of CFRP sheet layers and stiffness increased. In addition, the three bond strength models showed good agreement. It was clarified that the actual effective bond length may be longer than the effective bond length measured from the strain gauges, owing to the influence of variations in the width direction.

Original languageEnglish
Title of host publicationProceedings for the 6th fib International Congress, 2022- Concrete Innovation for Sustainability
EditorsStine Stokkeland, Henny Cathrine Braarud
Publisherfib. The International Federation for Structural Concrete
Pages2268-2275
Number of pages8
ISBN (Print)9782940643158
Publication statusPublished - 2022
Event6th fib International Congress on Concrete Innovation for Sustainability, 2022 - Oslo, Norway
Duration: 12 Jun 202216 Jun 2022

Publication series

Namefib Symposium
ISSN (Print)2617-4820

Conference

Conference6th fib International Congress on Concrete Innovation for Sustainability, 2022
Country/TerritoryNorway
CityOslo
Period12/06/2216/06/22

Keywords

  • CFRP sheet
  • bond behaviour
  • bond model
  • bond test
  • multi-ply

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