Local bond stress slip relations for FRP sheets-concrete interfaces

Jian-Guo Dai, Tamon Ueda

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review


Both increasing FRP stiffness and decreasing adhesive's shear stiffness can enhance the interfacial performance of FRP sheets bonded to concrete. However, in comparison with the former way, the latter one can improve the interfacial fracture energy due to the good toughness and nonlinearity of low shear stiffness adhesives. As a result, the high strength of FRP material can be utilized more efficiently. Depending on the fracture energy and the experimentally obtained strain distributions of FRP, this paper applied an optimum back-calculation method to propose a nonlinear interfacial bond stress-slip model, in which the effects of all interfacial components can be included. All the necessary parameters serving for the model are the fracture energy and two other empirical constants α and β, which govern the ascending and descending parts of the interfacial bond-stress slip curves respectively. Analytical results based on the proposed model show good agreement with the experimental ones.
Original languageEnglish
Title of host publicationFibre-Reinforced Polymer Reinforcement for Concrete Structures - FRPRCS-6
EditorsKiang Hwee Tan
PublisherWorld Scientific
Number of pages10
ISBN (Print)981-238-973-3
Publication statusPublished - 2003
Externally publishedYes
EventThe Sixth International Symposium on FRP Reinforced for Concrete Structures - , Singapore
Duration: 8 Jul 200310 Jul 2003


ConferenceThe Sixth International Symposium on FRP Reinforced for Concrete Structures
Abbreviated titleFRPRCS-6

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