Flexión compuesta esviada en secciones de hormigón armado doblemente simétricas. Dirección de capacidad máxima

  1. Martínez, M. 1
  2. Lanti, R. 1
  3. Echeverria, E. 1
  1. 1 Universidad de Alcalá de Henares, España
Journal:
Informes de la construcción

ISSN: 0020-0883

Year of publication: 2019

Volume: 71

Issue: 554

Type: Article

DOI: 10.3989/IC.59325 DIALNET GOOGLE SCHOLAR lock_openOpen access editor

More publications in: Informes de la construcción

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Abstract

The use of simplified stress-strain relationship to describe the behavior of the concrete in compression (rectangular parabola, rectangular block), leads to find that the maximum capacity of a double symmetric reinforced concrete section under axial load an biaxial bending in the main symmetrical axis of the section. For the same section, the use of hyperbolic stress-strain relationship to describe the concrete behavior is found that the maximum capacity of the section under elevated compression level and biaxial bending does not lay in the symmetry axis direction but in an arbitrary one. A collection of interaction diagrams, biaxial bending an axial load, (Mx, My) of two sections with different amount of steel and two different axial loads are calculated in this research for two different stress-strain relationship for concrete (rectangular parabola, and hyperbolic), in order to find the direction of maximum resistance of the section under axial load and biaxial bending.

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