Evaluación del comportamiento estructural mediante el método de elementos finitos de conexiones viga – columna sin y con rigidizadores sometidas a flexión

Abstract

The present work proposes to evaluate the structural behavior through the analysis by finite elements of beam-column connections without and with rigidizers subjected to flexion, through the design of a structure of five levels and four sections, this structure was simulated in the SAP2000 Software. From the simulation it was possible to obtain data of forces and moments of each of the elements of the building, with which the most unfavorable portico within the structure was established when applying the live and dead loads, the application of these loads was carried out under the Adaptive Software Development (ASD) method. For this matter, the national standard NEC 2015 for building and the normal AISC 360-16 for the design were taken as the design. On the other hand, with the Idea StatiCa Software, the design and analysis of the internal connection and the edge connection was carried out. With this Software, the connections can be simulated using finite element methods based on existing models, the simulation was carried out based on data obtained once the design of the structure was finished, within the Idea StatiCa Software data was obtained such as the equivalent stress, plastic deformation, the force exerted by each of the screws that will be implemented in the connection. Once the analysis reached 100% in the simulation of the internal and edge connection without stiffeners, the maximum equivalent voltage of 225 MPa and the percentage of 0.8% in the plastic deformation were obtained, with these values it was possible to determine that the connection does not present any type of failure, since its maximum values are 248.2 Mpa and 5% with respect to the edge connection. In the case of the internal and edge connection with rigidizers, an effort equivalent to 223 MPa and the percentage of 0.6% in the plastic deformation was obtained, with these values it was possible to determine that the connection does not present any type of failure, since its maximum values are 248.2 Mpa and 5% respectively.