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Metals 2019, 9(2), 131; https://doi.org/10.3390/met9020131

Numerical Simulation of Steel Reinforced Concrete (SRC) Joints

1
Departamento de Ingenieria Civil, Universitat d’Alacant, 03080 Sant Vicent del Raspeig, Spain
2
Departamento de Mecánica de los Medios Continuos y Teoría de las Estructuras, Universitat Politècnica de València, Campus d’Alcoi, 03801 Alcoi, Spain
*
Author to whom correspondence should be addressed.
Received: 13 December 2018 / Revised: 21 January 2019 / Accepted: 22 January 2019 / Published: 26 January 2019

Abstract

This paper presents a three-dimensional finite element model to confirm experimental tests carried out on steel reinforced concrete joints. The nonlinear behavior of this concrete is simulated, along with its reduced capability to resist large displacements in compression. The aim was to obtain the plastic behavior of reinforced concrete beams with a numerical model in the same way as obtained experimentally, in which the reduction of strength in the post-critical stage was considered to simulate behavior until structures collapsed. To do this, a nonlinear calculation was necessary to simulate the behavior of each material. Three numerical models provide a moment–curvature graph of the cross-section until collapse. Simulation of the structural elements is a powerful tool that avoids having to carry out expensive experimental tests. From the experimental results a finite element model is simulated for the non-linear analysis of steel reinforced concrete joints. It is possible to simulate the decreasing stress behavior of the concrete until reaching considerable displacement. A new procedure is discussed to capture the moment-curvature diagram. This diagram can be used in a simplified frame analysis, considering post-critical behavior for future research. View Full-Text
Keywords: reinforced concrete; steel-reinforced concrete; joint; reinforcement; numerical simulation; post-critical; moment-curvature reinforced concrete; steel-reinforced concrete; joint; reinforcement; numerical simulation; post-critical; moment-curvature
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Montava, I.; Irles, R.; Segura, J.; Gadea, J.M.; Juliá, E. Numerical Simulation of Steel Reinforced Concrete (SRC) Joints. Metals 2019, 9, 131.

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