Retrofitting of Steel Structures with CFRP: Literature Review and Research Needs

Abstract

The application of the externally bonded (EB) carbon fiber-reinforced polymer (CFRP) technique for retrofitting steel elements offers significant advantages over the conventional method. The high strength-to-weight ratio and corrosion resistance of CFRP materials have made them a viable alternative for retrofitting steel structures. This paper covers a wide range of aspects discussed in the research investigations to date on CFRP bonded steel elements and provides a critical review of the topic under both static and fatigue loading conditions. In the end, research needs and recommendations are presented in this respect.

Keywords

• steel structures
• retrofitting technique
• carbon fiber-reinforced polymer (CFRP)
• bond–slip relationship
• static loading
• fatigue loading