Search results for " Curvature ductility"

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Biaxial deformation and ductility domains for engineered rectangular RC cross-sections: A parametric study highlighting the positive roles of axial l…

2016

Abstract Axial load and biaxial bending strongly influence the deformation capacity of column cross-sections, in most cases causing a non-negligible loss of curvature and ductility with respect to the case of pure bending along principal axes, commonly assumed as the basic condition to assess the inelastic capacity. In consideration of this the paper investigates the biaxial deformation performance of RC rectangular cross-sections belonging to one-dimensional elements, focusing on the influence of some parameters as the cross-section aspect ratio and the distribution of the rebars, as well as the mechanical characteristics of concrete and steel and the impact of biaxial/axial stresses. In t…

Cross-sectionMaterials science0211 other engineering and technologies020101 civil engineeringAaxial load02 engineering and technologyBendingDeformation (meteorology)CurvatureCurvature domain0201 civil engineeringCurvature capacityDuctilityParametric statisticsCivil and Structural Engineering021110 strategic defence & security studiesbusiness.industryStructural engineeringAspect ratio (image)Reinforced concreteSettore ICAR/09 - Tecnica Delle CostruzioniAaxial load; Bbiaxial bending; Cross-sections; Curvature capacity; Curvature domain; Curvature ductility; Reinforced concrete;Pure bendingBbiaxial bendingCurvature ductilityCross-sectionsbusinessPrincipal axis theorem
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BIAXIAL CURVATURE AND DUCTILITY CAPACITY OF RC COLUMN BASE CROSS SECTIONS

2014

The deformation performance of the base cross sections of reinforced concrete buildings is fundamental when large seismic events occur allowing the structure to have large excursions in nonlinear field and guaranteeing an overall ductile behaviour. It is well known that the axial force acting on columns significantly reduces the curvature capacity of the sections and for this reason the technical codes give design criteria stating a limitation in order to preserve the displacement capacity. It is also recognized that when biaxial bending occur the cross section undergo a loss in strength capacity. Starting the study of from Bresler (1960), which provided suitable expression to predict 3D li…

Reinforced concreteSettore ICAR/09 - Tecnica Delle CostruzioniCurvature capacityBiaxial bendingCurvature ductilityReinforced concrete Cross-sections Curvature capacity Curvature domain Curvature ductility Axial load Biaxial bendingCross-sectionsAxial loadReinforced concrete; Cross-sections; Curvature capacity; Curvature domain; Curvature ductility; Axial load; Biaxial bendingCurvature domain
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