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Methodology for the analysis of post-tensioned structures using a constitutive serial-parallel rule of mixtures: Large scale non-linear analysis

descriptionPublicationkeyboard_double_arrow_right Article 01 May 2019 Argentina, Spain English Publisher:Elsevier BVJournal:Composite Structures, volume 216, pages 315-330 (issn: 0263-8223,

Authors: Barbu, Lucia Gratiela; Cornejo Velázquez, Alejandro; Martínez García, Javier; Oller Martínez, Sergio Horacio; Barbat Barbat, Horia Alejandro;

doi: 10.1016/j.compstruct.2019.02.092

handle: 2117/130881 , 11336/120504

Methodology for the analysis of post-tensioned structures using a constitutive serial-parallel rule of mixtures: Large scale non-linear analysis

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Abstract

The main purpose of this paper is to develop a reliable method based on a three-dimensional (3D) finite-element (FE) model to simulate the constitutive behaviour of reinforced concrete structures strengthened with post-tensioned or pre-stressed tendons well beyond the elastic domain. The post-tensioned concrete is modelled as a composite material whose behaviour is described with the serial-parallel rule of mixtures (S-P RoM) (Rastellini et al., 2008; Martinez et al., 2008; Martinez et al., 2014 [3]) and the nonlinear behaviour of each component is accounted for by means of plasticity and damage models. 3D FE models were used, where the nonlinear material behaviour and geometrical analysis based on incremental-iterative load methods were adopted. Several examples are shown where the capabilities of the method on large scale structures are exhibited taking into account the self-weight, the post-tension load and different pressure loads. A new metric for computing the crack opening displacement inside a finite element is proposed. Peer Reviewed

Countries

Argentina, Spain

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Keywords

Engineering, Civil, Pre-stressed Serial-parallel rule of mixtures Composites Failure analysis Plasticity Damage, Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó, Engineering, Multidisciplinary, SERIAL-PARALLEL RULE OF MIXTURES, COMPOSITES, https://purl.org/becyt/ford/2.1, Engineering, Ocean, PLASTICITY, https://purl.org/becyt/ford/2, Engineering, Aerospace, Engineering, Biomedical, DAMAGE, FAILURE ANALYSIS, :Enginyeria civil::Materials i estructures::Materials i estructures de formigó [Àrees temàtiques de la UPC], 624, Computer Science, Software Engineering, Engineering, Marine, 620, Engineering, Manufacturing, Engineering, Mechanical, Formigó armat -- Models matemàtics, Engineering, Industrial, PRE-STRESSED, Reinforced concrete--Mechanical properties--Mathematical models

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