Computerised interaction diagrams and moment capacity contours for composite steel–concrete cross-sections

• Published in: Engineering structures Vol. 32; no. 11; pp. 3734 - 3757
• Main Author: Chiorean, C.G.
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01.11.2010; Elsevier
• Subjects: Applied sciences; Arc-length method; Biaxial bending; Building structure; Buildings. Public works; Composite cross-sections; Compressing; Computer programs; Construction (buildings and works); Contours; Cross sections; Exact sciences and technology; Fully yield surfaces; Interaction diagrams; Mathematical analysis; Mathematical models; Steel-concrete composite structure; Strain softening; Stresses. Safety; Structural analysis. Stresses; Ultimate strength analysis; Ultimate tensile strength; Ultimate strength analysis; Interaction diagrams; Arc-length method; Biaxial bending; Composite cross-sections; Fully yield surfaces; Ultimate strength method; Stress strain relation; Interaction; Modeling; Cross section(geometry); Compressive stress; Composite construction; Capacity; Formulation; Bending moment; Example; Axial load; Mathematical model; Steel concrete

A new incremental-iterative procedure based on the arc-length constraint equation is proposed in order to determine both interaction diagrams and moment capacity contours for composite steel–concrete cross-sections. This procedure adopts a tangent stiffness strategy for the solution of the nonlinear...