6533b853fe1ef96bd12acb88
RESEARCH PRODUCT
Engineering failure analysis of corroded R.C. beams in flexure and shear
F. CannellaGiuseppe Campionesubject
Materials scienceShear-moment interactionBond strength0211 other engineering and technologiesGeneral Engineering020101 civil engineeringPitting02 engineering and technology0201 civil engineeringCorrosionCorrosionCrackingEngineering (all)Flexural strengthDeflection (engineering)021105 building & constructionLoad-deflection responsePitting corrosionGeneral Materials ScienceLimit state designMaterials Science (all)SlippageComposite materialBonddescription
Abstract In the present paper, a simple model to reproduce the load-deflection response of corroded beams failing in flexure and shear is presented and discussed. Effects of diffused and pitting corrosion on steel bars, compressive concrete strength degradation and concrete bond strength degradation due to rust formation are included in the model. Engineering approach based on limit state theory was here adopted to predict the peak and the residual flexural and shear strength of corroded beams with corresponding deflections and ductility estimation. Calculation of deflection at cracking taking into account of rust formation and deflection at yielding and the ultimate state taking into account also of slippage of steel bars due to rust formation were made. The model was also widely verified against tests available in the literature referred to crack opening, pit depth, attach corrosion penetration, load-deflection curves.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-04-01 | Engineering Failure Analysis |