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Bond-slip Behavior of BFRP Bars in Concrete under Cyclic Loading

Acknowledgements第5-6页
摘要第6-7页
Abstract第7页
Chapter 1: Background and literature review第11-43页
    1.1 Introduction第11页
    1.2 Fibre Reinforced Polymer (FRP)第11-13页
        1.2.1 Mechanical properties of FRP materials第12-13页
    1.3 Bond of steel reinforcing bars to concrete第13-16页
        1.3.1 Bond-slip mechanism of steel bars第13-14页
        1.3.2 Factors that affects the bond performance of steel bars第14-16页
    1.4 Previous research on the bond behaviour of FRP bars第16-30页
        1.4.1 The effect of fibre and resin properties第16-17页
        1.4.2 Concrete compressive strength effect第17页
        1.4.3 Bar diameter effect第17页
        1.4.4 Bar surface treatment effect第17-18页
        1.4.5 Embedment length effect第18-19页
        1.4.6 Transverse confining pressure effect第19-20页
        1.4.7 Concrete cover第20页
        1.4.8 Bar location effect第20-21页
        1.4.9 Test method effect第21-23页
        1.4.10 Estimation of bond strength and development length第23-26页
        1.4.11 Modelling of bond-slip relationship of FRP bars第26-29页
        1.4.12 Summary第29-30页
    1.5 Previous research on bond behaviour of BFRP bars第30-33页
        1.5.1 Summary第32-33页
    1.6 Previous research of cyclic bond behaviour of reinforcing steel bars第33-34页
    1.7 Previous research of cyclic bond behaviour of reinforcing FRP bars第34-40页
    1.8 Research objectives第40-41页
    1.9 Thesis structure第41-43页
Chapter 2: Experimental investigation of the monotonic bond behaviour ofBFRP bars第43-69页
    2.1 Introduction第43页
    2.2 Specimens preparing and casting第43-44页
    2.3 Material properties第44-47页
        2.3.1 Concrete第44页
        2.3.2 BFRP and steel bars第44-47页
    2.4 Testing Rig and instrumentations第47页
    2.5 Loading protocol第47页
    2.6 Test specimens第47-49页
    2.7 Test results and discussion第49-66页
        2.7.1 Failure mode第49-51页
        2.7.2 Monotonic bond-slip behaviour第51-53页
        2.7.3 (BPE) Bond model第53-55页
        2.7.4 Effect of the bar surface treatment on the bond-slip behaviour第55-62页
        2.7.5 Concrete Strength effect第62页
        2.7.6 Bar diameter effect第62-64页
        2.7.7 Bond resistance mechanism第64-66页
    2.8 Concluding remarks第66-69页
Chapter 3: Experimental investigation of the cyclic bond behaviour of BFRPbars第69-103页
    3.1 Introduction第69页
    3.2 Test methodology第69-76页
        3.2.1 Pull out test vs beam test第69-70页
        3.2.2 Material properties第70页
        3.2.3 Cyclic loading protocol第70-73页
        3.2.4 Test specimens第73-76页
    3.3 Test results and discussion第76-100页
        3.3.1 Failure mode第76页
        3.3.2 Effect of the bar type and surface condition on the cyclic bond behaviour第76-94页
        3.3.3 Effect of cyclic loading characteristics on the bond behaviour of wounded BFRP bars第94-97页
        3.3.4 Effect of concrete compressive strength on the cyclic bond behaviour of woundedBFRP bars第97-98页
        3.3.5 Effect of bar diameter on the cyclic bond behaviour of wounded BFRP bars第98-100页
    3.4 Concluding remarks第100-103页
Chapter 4: Numerical model of cyclic bond behaviour of wounded BFRP bars第103-116页
    4.1 Introduction第103页
    4.2 Parameters affecting the cyclic bond behaviour第103-104页
    4.3 Slip at the end of the ascending branch (S_1)under cyclic loading第104-105页
    4.4 Bond strength under cyclic loading第105-106页
    4.5 Bond stress Plataea and degradation under cyclic loading第106-107页
    4.6 Proposed cyclic bond-slip model第107-108页
    4.7 Comparison between the results of the proposed model and the experimental results第108-114页
    4.8 Model limitations第114页
    4.9 Concluding remarks第114-116页
Chapter 5: Conclusions and future research第116-121页
    5.1 Summary第116页
    5.2 Conclusions第116-118页
        5.2.1 Regarding monotonic bond behaviour of BFRP bars第116-117页
        5.2.2 Regarding cyclic bond behaviour of BFRP bars第117-118页
    5.3 Recommendations for future research第118-119页
    5.4 Publications第119-121页
References第121-125页

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