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Ingeniería e Investigación
Print version ISSN 0120-5609
Abstract
PAREDES, Jairo A; BEDOYA-RUIZ, Daniel and HURTADO, Jorge E. Isotropic damage model and serial/parallel mix theory applied to nonlinear analysis of ferrocement thin walls. Experimental and numerical analysis. Ing. Investig. [online]. 2016, vol.36, n.1, pp.41-51. ISSN 0120-5609. https://doi.org/10.15446/ing.investig.v36n1.52810.
Ferrocement thin walls are the structural elements that comprise the earthquake resistant system of dwellings built with this material. This article presents the results drawn from an experimental campaign carried out over full-scale precast ferrocement thin walls that were assessed under lateral static loading conditions. The tests allowed the identification of structural parameters and the evaluation of the performance of the walls under static loading conditions. Additionally, an isotropic damage model for modelling the mortar was applied, as well as the classic elasto-plastic theory for modelling the meshes and reinforcing bars. The ferrocement is considered as a composite material, thus the serial/parallel mix theory is used for modelling its mechanical behavior. In this work a methodology for the numerical analysis that allows modeling the nonlinear behavior exhibited by ferrocement walls under static loading conditions, as well as their potential use in earthquake resistant design, is proposed.
Keywords : Precast ferrocement walls; cyclic loading; ductility; Bouc-Wen-Baber-Noori model; earthquake resistant design.