This collection of technical papers presents the latest ideas and findings on the inelastic behavior of reinforced concrete structures from the analysis and design standpoints. These papers include the state-of-the-art concrete material models and analysis methods that can be used to simulate and understand the inelastic behavior of reinforced concrete structures, and design issues that can improve the seismic performance of these structures. Topics include modeling of concrete behavior; modeling of RC structures (finite element approach and macro-element approach); and experimental studies, analysis, and design issues.