6533b871fe1ef96bd12d2465
RESEARCH PRODUCT
Moment-axial force domain of corroded R.C. columns
Liborio CavaleriM.f. FerrottoF. CannellaGiuseppe Campionesubject
Materials scienceBar (music)0211 other engineering and technologies020101 civil engineering02 engineering and technology0201 civil engineering021105 building & constructionGeneral Materials ScienceCivil and Structural EngineeringCritical loadTension (physics)business.industryBond strengthBucklingCover spallingStructural engineeringBuilding and ConstructionSpallStrength of materialsCorrosionCrackingBucklingMechanics of MaterialsMoment-axial forces domainMaterials Science (all)businessConfinementdescription
In the present paper, a simple model to determine the moment-axial force domain of the cross-section of reinforced concrete (R.C.) columns subjected to corrosion process is presented. The model considers members with square and rectangular cross-sections and it accounts for—cover spalling; buckling of longitudinal reinforcing bars; loss of bond of bar in tension; reduction of confinement pressures (due to the reduction of the area of stirrups and cracking of concrete induced by rust formation). The analytical expressions for prediction of the area reduction of steel, bond strength and critical load of longitudinal bars utilized were verified against experimental data available in the literature. Ample verification of the analytical model proposed for prediction of moment-axial force domain was made against available experimental data given in the literature, showing good agreement. Finally, the proposed model gives simple expressions for a preliminary static check on existing cross-sections of R.C. columns subjected to corrosion processes.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-08-10 |