Influencia de la variación de parámetros geométricos en el diseño sismorresistente de naves industriales

Abstract

This study analyzes the influence of geometric parameters specifically the roof slope and purlin spacing on the seismic-resistant design of steel industrial buildings. The research is conducted in the Ecuadorian context, a region of high seismic risk, and aims to optimize structural behavior, material efficiency, and economic feasibility. Multiple structural configurations were modeled and analyzed using ETABS software, evaluating their response to seismic, wind, dead, and live loads according to current local building codes. The methodology included the preliminary design of key elements such as beams, purlins, and bracing systems, along with a comparative analysis of deformations, internal forces, and displacements under different loading scenarios. The results show that even minor geometric variations can significantly impact the global stiffness, total structural weight, and seismic performance, directly affecting the efficiency and safety of the design. It is concluded that a proper selection of roof slope and purlin distribution not only improves structural behavior during seismic events but also helps reduce steel consumption. This research offers technical guidelines that may serve as a reference for structural engineers seeking to design safer and more sustainable industrial buildings in high seismic hazard areas.