Title: Interaction Surfaces for Prestressed Concrete I-Beams Under Combined Loading

Author(s): Bibiana M. Luccioni, Juan Carlos Reimundin, and Rodolfo F. Danesi

Publication: Structural Journal

Volume: 88

Issue: 1

Appears on pages(s): 106-112

Keywords: axial loads; beams (supports); bending moments; biaxial loads; combined stress; computer programs; failure mechanisms; flexural strength; I-beams; limit state design; prestressed concrete; reinforced concrete; shear strength; structural analysis; torsion;

DOI: 10.14359/3136

Date: 1/1/1991

Abstract:
Studies the ultimate stress behavior of prestressed concrete thin-walled open sections under combined actions. A method to construct interaction surfaces based on the theory of "limit planes" is proposed. The results obtained with a computer program developed for I-beams are also presented. Based on the numerical results, a design formula is proposed for reinforced and prestressed concrete I-members subjected to axial compression, or to tension, biaxial bending, and bimoment. Finally, a numerical example is illustrated and comparisons with test results are presented.