6533b835fe1ef96bd129f6ee
RESEARCH PRODUCT
Increasing the flexural capacity of RC beams using steel angles and pre-tensioned stainless steel ribbons
Antonino RecuperoPiero ColajanniNino Spinellasubject
reinforced concrete beamCAMflexural capacityMaterials sciencesteel anglebusiness.industrystainless steel ribbonretrofitting0211 other engineering and technologies020101 civil engineering02 engineering and technologyBuilding and ConstructionStructural engineeringStrength of materials0201 civil engineeringSettore ICAR/09 - Tecnica Delle CostruzioniFlexural strengthMechanics of Materials021105 building & constructionRetrofittingGeneral Materials ScienceMaterials Science (all)CAM; flexural capacity; reinforced concrete beams; retrofitting; stainless steel ribbons; steel angles; Civil and Structural Engineering; Building and Construction; Materials Science (all); Mechanics of MaterialsbusinessCivil and Structural Engineeringdescription
This article presents an experimental programme on reinforced concrete beams retrofitted with steel angles and pre-stressed stainless steel ribbons to increase their flexural strength and ductility. Two different configurations of the steel ribbon were designed, and two companion specimens for each type considered were subjected to a four-point bending test to facilitate a direct comparison in the analysis of the effectiveness of the retrofitting technique. The influence of longitudinal steel angles and transverse stainless steel ribbons is analysed, and the concrete confinement due to stainless steel ribbons examined. The strengthened beams show remarkable increments in flexural strength and ductility with respect to the as-built beam. Moreover, a simple cross-sectional model was adopted to calculate the flexural strength; then sophisticated numerical tools were used to reproduce both the experimental load-displacement curve and crack pattern for each specimen.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-12-01 | Structural Concrete |