Modelación numérica del comportamiento dinámico del suelo ante la acción de cargas sísmicas

Abstract

Abstract: In recent decades computer packages have been developed that allow the simulation of phenomena such as liquefaction and site effects, these programs are expensive and not very accessible to users. The purpose of the present end-of-degree work was to understand, analyze and interpret the behavior of the soil under the action of seismic loads, with the aim of generating tools that allow the modeling of these phenomena. Through the Matlab and OpenSees programs, preprocessing, process and post-processing modules were organized that allow the entry of mechanical characteristics of cohesive and non-cohesive soils, in order to generate stratified soil configurations. Additionally, in each of the parameters of the soil column, vectors with ranges delimited by the user can be entered and different geometric and mechanical configurations of the soil can be made. Minimum error percentages were obtained when validating the OpenLiq and OpenSite programs with respect to commercial programs, such as Proshake. In addition, the new programs allow the user to choose the analysis algorithm thanks to its intuitive and friendly interface.