Assessment of the Structural Performance of Reinforced Concrete Beams Retrofitted with Fiber Reinforced Polymers

Thesis Abstract

Abstract
The application of Fiber Reinforced Polymers (FRPs) in retrofitting reinforced concrete structures has gained increasing attention due to their high strength-to-weight ratio and corrosion resistance properties. This thesis presents a comprehensive study on the assessment of the structural performance of reinforced concrete beams retrofitted with FRPs. The research aims to investigate the effectiveness of FRP retrofitting in enhancing the load-carrying capacity, ductility, and durability of reinforced concrete beams. The study begins with Chapter 1, which provides an introduction to the research topic, background information, problem statement, objectives, limitations, scope, significance, structure of the thesis, and definition of key terms. Chapter 2 presents a detailed literature review covering ten key aspects related to FRP retrofitting of concrete structures, including material properties, retrofitting techniques, design guidelines, and previous research findings. Chapter 3 outlines the research methodology, which includes the selection of experimental specimens, testing procedures, data collection methods, and analytical techniques. The methodology also incorporates finite element analysis to simulate the behavior of retrofitted beams under various loading conditions. Eight key components of the research methodology are discussed in detail, providing a clear understanding of the experimental setup and analytical approach. Chapter 4 presents an extensive discussion of the research findings, including the experimental results and numerical simulations. The chapter evaluates the performance of retrofitted beams in terms of load-carrying capacity, deflection behavior, failure modes, and durability aspects. The findings are compared with the results from control specimens to assess the effectiveness of FRP retrofitting in improving the structural performance of reinforced concrete beams. Finally, Chapter 5 provides a conclusion and summary of the thesis, highlighting the key findings, implications, and recommendations for future research. The study demonstrates that FRP retrofitting can significantly enhance the structural performance of reinforced concrete beams, leading to increased load-carrying capacity and improved durability. The conclusions drawn from this research contribute to the growing body of knowledge on FRP retrofitting techniques and their application in civil engineering practice. In conclusion, this thesis offers valuable insights into the assessment of the structural performance of reinforced concrete beams retrofitted with FRPs, providing a foundation for further research in this area. The findings presented in this study have practical implications for the design and retrofitting of concrete structures, with the potential to enhance the safety and sustainability of infrastructure systems.