PROPUESTA DE NORMATIVA INTEGRAL PARA DISENO DE PLACAS BASE EMPERNADAS PARA CONEXIONES A CIMENTACIONES

Abstract

During the last decades in Ecuador they have conducted research in order to develop a set of standards that enable civil engineers to design and build in a safe and efficient way. This requirement is known as the NEC, Norma Ecuatoriana de la Construccion. The interest in this research is to present a proposal for this set of regulations reassessing Chapter 2 (Structural Steel) Section 7 Design of connections, joints and fasteners, focusing on one of the most common fastener system currently in use, steel column joints to a reinforced concrete foundation through bolted steel base plate. . Due to this being a theoretical research, the literature and bibliography are international, this will be analyzed properly to adapt it to our environment. To carry out this proposal to the NEC every aspect of the design of the base plates and the bolted connections will be studied, including: net Area, effectiveness, slenderness, reactions and acting forces (axial, moment, shear and bending) fault types, types of bolts, etc. To make a proposal to reassess Section 7 of Chapter 2 of NEC, this research will study and thoroughly analyze in each stage of the design process of steel base plates with metal anchors and bolted connections to create a properly designed model for our media. The proposed design model must be clear and efficient enough to make sure its use is easy for engineers in charge of design and construction of such elements and the correct control of the work done.