Experimental Behavior of Existing RC Columns Strengthened with HPFRC Jacket under Concentric and Eccentric Compressive Load

Reinforced concrete (RC) structures built before the 1970 represent a large portion of existing European buildings stock. Their obsolescence in terms design criteria, materials, and functionality is becoming critical issue for guaranteeing adequate compliance with current structural codes. Recently, new jacketing system based on use high-performance fiber-reinforced (HPFRC) has been introduced strengthening RC building members. Despite promising aspects HPFRC technique, currently, comprehensive systematic technical framework its implementation still missing. In this paper, experimental performance columns strengthened jacket subjected to pure axial load combined load-bending moment uncoupled from shear investigated. The test outcomes confirmed significant improvement columns, especially higher values eccentricity. Finally, standard-based practice-oriented analytical tool designing retrofit interventions using proposed. comparison between calculated results revealed satisfactory prediction capability.