Aplicación del ddbd (direct displacement base design) y comparación con el fbd (force based design) en estructuras regulares de hasta 4 pisos (enfocado a evaluar geometría estructural): pórticos de hormigón armado resistentes a momento.

Abstract

In this work, two different design methods are performed for 3 types of structures less than 4 stories, one being the Force based is design (FBD) and then other being the Direct displacement base is design (DDBD). Of which the current state of knowledgeis briefly summarized. The 3 different structures will vary in floor and elevation with typical geometries, it is considering that they will be frames and the materials and type of soil used in these will be the same to evaluate the influence of the geometric configuration. For the development of this work, we begin with the Force based design method (FBD), which from an external seismic force and assumed loads are applied to the structure, to design the dimensions of the structural elements so that the structure remains above an established safety limit. The Direct displacement base design (DDBD) method is continued, where predictable performance levels are expected to be achieved with a more realistic behavior of the materials, where capacity design is used to control the inelastic deformation mechanism. And finally, from the previous designs, the basal shear, the reinforcement and the drifts obtained are extracted from each structure to evaluate the results between the two methods.