Aplicación del DDBD (Direct Displacement Base Design) y comparación con el FBD (Force Based Design) en estructuras regulares. (Enfocado a evaluar geometría estructural): estructuras duales de muros y pórticos de hormigón armado (hasta 4 pisos).

Abstract

This degree work seeks to make a comparison between two of the best known methods of seismic analysis in the field of civil engineering for dual structures up to 4 stories. The first one is the force-based method, better known by its acronym ""FBD"", which from the applied seismic force finds an initial stiffness and a damping percentage with which the elements can be dimensioned trying to have an adequate structural behavior. The second method is that based on displacements, also called DDBD, which arises as an alternative to FBD to solve certain uncertainties. This method consists of defining a performance level and a target displacement in the structure. The comparison variables will be the cross sections of beams, columns and walls, as well as the amounts of steel, the basal shear, drifts and displacements of the structure, all calculated according to the Ecuadorian building regulations (NEC) and the ACI 318-19 code. Subsequently, the results are analyzed and conclusions are drawn regarding the methods and the benefits or disadvantages of their application in the selected case studies.