An Example-Guide for Rapid Seismic Assessment and FRP Strengthening of Substandard RC Buildings

This paper presents a rapid seismic assessment and Fibre Reinforced Polymer (FRP) retrofit design methodology which relies on the European guidelines recently published in Chapter 8 of fib Bulletin 90 use externally applied FRP reinforcement retrofitting reinforced concrete (r.c.) structures. For this purpose, an example-guide is developed with step-by-step hand calculations aiming to facilitate engineers practice researchers working field easily understand proposed methodology. A three-storey, pilotis-type residential r.c. building selected typical Mediterranean construction 1970s. The followed only aims provide preliminary results before implementation more sophisticated analysis if need be (e.g., case irregular buildings). procedure identified that columns ground storey, being most critical structural elements for stability structure, are vulnerable brittle failure modes. To remove all modes attributed inherent deficiencies enhance overall deformation capacity building, strengthening schemes storey (pilotis) combination local measures, such as wrapping, global interventions. latter may refer addition jacketing central column slenderness metal X-braces modify lateral deflection shape thus moderate interstorey displacement demand.