Evaluación del comportamiento estructural de conexiones viga-columna rigidas sometidas a flexion con el empleo de elementos finitos

Abstract

The purpose of this project is the design of a rigid internal and external beam-column connection under the current NEC-2014 and AISC 360-16 standards, which must resist the live, permanent, and accidental loads of a structure of 6 levels and 5 sections. Once the theoretical calculations of the acting loads were performed, the simulation of the building was carried out to obtain the forces and moments in each node of the structure, using computer tools such as Staad Pro. For the finite element simulation of the internal and external connection, the Idea StatiCa software was used, which allows us to import the design data, loads and moments, as well as to create the theoretically designed weld and achieve a finite element analysis. The rigid connection consists of a clamping plate welded to the web of the beam and to the column flange and the connection is reinforced by welding the upper and lower flanges of the beam to the column. The connection that suffers the most is the internal one since it is at the first level and suffers the weight of the structure in addition to the earthquake in load combination 3, in both connections the equivalent stress has a maximum value of 148.7 MPa which represents 60% of the equivalent ultimate stress of the structural steel A 36 which is 248.3 MPa, this shows that the design of the rigid connection is reliable in order not to lose the stiffness and stability of the structure.