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Behavior of precast ferrocement thin walls under cyclic loading: an experimental and analytical study
Comportamiento bajo carga cíclica de muros prefabricados de pared delgada de ferrocemento: una investigación experimental y analítica
DOI:
https://doi.org/10.15446/ing.investig.v34n1.40420Keywords:
Precast ferrocement walls, cyclic loading, ductility, Bouc-Wen-Baber-Noori model, earthquake resistant design (en)muros prefabricados de ferrocemento, carga cíclica, ductilidad, modelo de Bouc-Wen-Baber-Noori y diseño sismo-resistente (es)
Thin ferrocement walls are the structural elements that comprise the earthquake resistant system of housing built with this material. This article presents the results drawn from an experimental campaign carried out over full-scale precast ferrocement thin walls, which were assessed under cyclic loading conditions. The tests assessed the strength of the walls, their hysteretic behavior, ductility, energy dissipation, equivalent damping, their coefficient of energy dissipation and their characteristic failure mode when subjected to cyclic loading conditions. Finally, an analytical model that modeled the nonlinear dynamic behavior exhibited by ferrocement walls was implemented; its feasibility and potential use in earthquake resistant design of ferrocement walls was evaluated.
Los muros de ferrocemento de pared delgada son los elementos estructurales, que conforman el sistema sismo resistente de viviendas construidas con este material. En este artículo se presentan los resultados obtenidos de una campaña experimental; llevada a cabo sobre muros prefabricados de pared delgada a escala real, los cuales fueron evaluados bajo ensayos de carga cíclica. Los ensayos permitieron evaluar: la resistencia, el comportamiento histerético, la ductilidad, la disipación de energía, el amortiguamiento equivalente, el coeficiente de disipación de energía y los modos de falla característicos de los muros de ferrocemento bajo carga cíclica. Al final, se implementó un modelo analítico que captura el comportamiento no lineal, exhibido por los muros de ferrocemento bajo carga cíclica y se evalúo la factibilidad y su potencial uso en el diseño sismo resistente de muros realizados en dicho material.
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Copyright (c) 2014 Daniel Alveiro Bedoya Ruiz, Gilberto Alejandro Ortiz García, Diego Andrés Álvarez Marín
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