scope:

This report provides information that will benefit practicing engineers interested in the design or rehabilitation of concrete structures subjected to fatigue cycles caused by regular service loads. This report does not contain detailed design procedures but rather should be considered a general resource providing a comprehensive overview of fatigue issues in reinforced concrete structures.

This document is divided into three thematic sections:

1) Chapters 1 and 2 provide a general introduction, and notation and definitions, respectively.

2) Chapters 3 and 4 discuss the fatigue behavior of plain unreinforced concrete and reinforcing materials (steel bars and tendons and FRP components), respectively. These chapters are likely to be of interest for those interested in applications of unreinforced concrete, as well as for practitioners seeking to develop a better understanding of the mechanisms of fatigue in various materials.

3) Chapters 5 through 8 focus on the fatigue behavior of reinforced concrete systems considering the interaction between constituent materials. These chapters are intended for practicing engineers dealing with the design or assessment of common applications of structural concrete subjected to repeated loads. The content is organized by the type of reinforcing system used: conventional reinforced concrete containing internal steel or FRP bars (Chapter 5); concrete reinforced with bonded or unbonded prestressed tendons (Chapter 6); concrete reinforced with discrete fibers (Chapter 7); and external strengthening sheets or laminates (Chapter 8).