الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
In this thesis, a detailed procedure of non-linear FE analysis of RC beams strengthened in shear with TRM was presented numerically to investigate the efficiency and the effectiveness of TRM in enhancing the overall behavior of the beams. The models were conducted by Abaqus software program using 2D plane stress and the bond between TRM composite and concrete substrate was modelled using node to node mechanism. The FE was validated using experimental tests results available in literature. It was observed that the FE has excellent agreement with comparison with experimental results according to ultimate load, deflection and mode of failure. In addition, the model has the ability to observe the de-bonding failure. Furthermore, the FEMs were used to conduct a parametric study to investigate the effect of some parameters on the performance of RC simple beam strengthened in shear with TRM. These parameters included the effect of mortar properties such as type and thickness and also the effect of fiber properties such as number of layers, type and orientation. The study extended to include the effect of roughness degree of concrete substrate (smooth, rough and indented) and shear 141 span to depth ratio. Also, the effect of negative moment on the shear strengthening capacity in case of continuous beam was investigated.Finally, a proposed analytical equations to predict the shear strength of TRM in case of RC simple and continuous beams have been developed based on regression analysis of new FEMs results of shear deficient beams.