Evaluación del diseño por desempeño basado en desplazamientos aplicado a edificios de acero: evaluación del diseño por desempeño basado en desplazamientos aplicado a edificios de acero.

Abstract

This project presents a non-traditional design methodology, which is based on the displacement-based seismic design method for regular steel frames structures, aimed at satisfying a controlled level of damage through a target displacement. It also satisfies the inelastic deformation capacity required to prevent structural collapse. The basic concepts of structural dynamics are the main foundations of the method under study, which is based on the use of a system of one degree of freedom transformed from a system of multiple degrees of freedom in which its dynamic properties are related to the fundamental mode of vibration of the structure. In the same way, this design method determines the effective stiffness of each structural element according to its stress level through equations, where the resistance of such elements is explicitly considered. Two buildings have been considered with the same architectural distribution in plan with different heights characterized in 11 and 5 levels. For the execution of the method to be used, the NEC-15 is used, which indicates the requirements established for buildings located in the city of Quito. Once the structures are designed and in order to verify and validate the proposed method, nonlinear pushover analysis techniques are used by means of the commercial program ETABS. And with this to verify the effectiveness of the DDBD method. To conclude, this work seeks to make known a little more about the Direct Displacement-Based Design Method (DDBD) and to provide a guide for its application for regular buildings. This method is specified in the Ecuadorian Construction Standard NEC-15. To conclude, this project seeks to raise awareness about the Direct Displacement-Based Design (DDBD) method and provide a guide for its application in regular buildings.