Research

Anchorage and Bond Behaviour of Near Surface Mounted Fibre Reinforced Polymer Bars


Reference:

Kalupahana, W. K. K. G., 2009. Anchorage and Bond Behaviour of Near Surface Mounted Fibre Reinforced Polymer Bars. Thesis (Doctor of Philosophy (PhD)). University of Bath.

Related documents:

[img]
Preview
PDF (UnivBath_PhD_2009_K_Kaluphana.pdf) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Download (33MB) | Preview

    Abstract

    The Near Surface Mounted (NSM) strengthening is an emerging retrofitting technique, which involves bonding Fibre Reinforced Polymer (FRP) reinforcement into grooves cut along the surface of a concrete member to be strengthened. This technique offers many advantages over external bonding of FRP reinforcement, for example, an increased bond capacity, protection from external damage and the possibility of anchoring into adjacent concrete members. To date, significant research has been conducted into the NSM FRP strengthening technique. However, there are still some areas which need further research in order to fully characterise bond and anchorage of NSM FRP bars. Lack of experimental data, design tools and analytical models addressing these areas create obstacles for the efficient use of these advanced polymer materials. The particular objectives of the research are; to investigate bond behaviour between NSM FRP bars and concrete, to understand the critical failure modes involved and their mechanics, and to develop a rational analytical model to predict bond strength and anchorage length requirements for NSM FRP bars. Several significant variables affecting bond, such as bond length, size, shape and type of bar, resin type, groove dimensions and concrete strength, have been considered. In particular, attention has been focussed on the effect of bar shape on bond behaviour. A comprehensive set of laboratory testing and their results, including the effect of the investigated parameters are presented. Various modes of anchorage failure of NSM FRP bars are identified and the underlying mechanics are investigated. Analytical models are developed to predict bond capacity and anchorage length requirements of NSM FRP bars, and are verified with experimental results.

    Details

    Item Type Thesis (Doctor of Philosophy (PhD))
    CreatorsKalupahana, W. K. K. G.
    Uncontrolled Keywordsbond, anchorage, frp, nsm
    DepartmentsFaculty of Engineering & Design > Architecture & Civil Engineering
    Publisher StatementUnivBath_PhD_2009_K_Kaluphana.pdf: © The Author
    StatusUnpublished
    ID Code21115

    Export

    Actions (login required)

    View Item

    Document Downloads

    More statistics for this item...