Using Composites in Seismic Retrofit Applications

This report was prepared to provide a comprehensive review of the state-of-the-art for using composite materials for seismic retrofit applications. The emphasis is on seismic retrofit of reinforced concrete columns. The report is presented in eleven chapters. Chapters 1–3 provide a basic introduction to composite materials, including discussions on the types of matrix and reinforcement materials, processing methods, and basic mechanics. Polymer matrix composites with continuous carbon or glass fibers as reinforcement are emphasized since they are the most frequently used composite materials for seismic retrofit applications. Chapters 4–6 review methods for designing and applying composite jackets onto columns and performing structural tests on columns with composite jackets. Environmental durability test protocols and data for composite systems for seismic retrofit are reviewed in Chapters 7–10. Examples of commercially available composite retrofit systems are presented in Chapter 11.