Repair of Severely-Damaged RC Exterior Beam-Column Joints with FRP and FRCM Composites


This paper presents the results of an experimental program aimed at comparing the cyclic behavior of three full-scale reinforced concrete (RC) exterior beam-column joints repaired with externally bonded composites. Preliminary, the specimens suffered significant damage, which resulted in a beam-joint (B + J) failure, i.e. shear failure of the panel joint after yielding of longitudinal reinforcement in the beam. The damaged specimens were then repaired using either Fiber Reinforced Polymer (FRP) or Fiber Reinforced Cementitious Matrix (FRCM) composites, and the same loading history was applied to the repaired specimens. The experimental behavior was compared with that of original specimens, and results are presented in terms of load-carrying capacity, stiffness deterioration, ductility, dissipated energy, and equivalent damping viscous ratio. Results allow to clearly identify the contribution of the externally-bonded composites to the overall behavior of the repaired specimens.


Civil, Architectural and Environmental Engineering


The authors would like to acknowledge the technical support from the European Network for Durable Reinforcement and Rehabilitation Solutions (endure), a Marie Skłodowska Curie Initial Training Network Commission (Contract number MC-ITN-2013-607851).

Keywords and Phrases

Beam-column joint; Cyclic loading; FRCM; FRP; Reinforced concrete; Seismic repair

International Standard Serial Number (ISSN)

0263-8223; 1879-1085

Document Type

Article - Journal

Document Version


File Type





© 2019 Elsevier, All rights reserved.

Publication Date

01 Jan 2019