Análisis no lineal de estructuras regulares de acero con pórticos resistentes a momento (SMF) utilizando OpenSees y CEINCI-LAB

Abstract

In the present investigation, the analysis of nine three-dimensional steel buildings was carried out, touching between four and twelve levels, with moment resistant frames (SMF) with RBS connections, the analysis and design for the three-dimensional structures was carried out in a structural software. Subsequently, the nonlinear static analysis was performed for the SMF frames, using the OpenSees software and the CEINCI-LAB routines programmed in Matlab, obtaining the capacity curves, all the frames collapsed in an average of 4.05% displacement ratio of Regarding the total height of the building (Dt/HT), with these results, the performance point was obtained by the capacity spectrum method and the structural performance was evaluated. Additionally, the versatility of the OpenSees program was verified at the time of convergence, the computational time is less with worn models than commercial computational packages, more easily fulfilling the change of mathematicians, materials, model conditions and request for additional results, if so the user requires.