Estudio analítico de placas base adaptadas con la guía de diseño 1 del AISC, considerando columnas tubulares huecas para el caso de un edificio de acero estructural de nueve niveles

Abstract

The issues that arise from the connections application without specific support are mainly focused on security. In steel structures, carrying out a correct design of the connections at the base of the column is essential, since it enables an adequate behavior of the building in the face of seismic events, thus fulfilling the objective of structural performance of the NEC SE-DS (Seismic Hazard, Earthquake-Resistant Design). The Ecuadorian Construction Standard -NEC-, is responsible for the design of constructions in the country and in its chapter on the design of steel structures (NEC-SE-AC), it does not contemplate in detail a section corresponding to the design of the connections between the tubular type columns and the base plate. In the country, the use of reinforced profiles is frequent, which consist of plates welded together and whose objective is to create an adaptation to the structural profiles used by the AISC. In the middle, this common practice has focused on the elaboration of connections, as is the case of tubular columns and base plates, whose process is not described in the current local standard. Therefore, this research will focus on the design of base plates connected to columns with square tubular sections, normally used in metal buildings in the country. Therefore, an evaluation and analysis of the design process for this type of connection is proposed.