Diseño estructural sismo-resistente e instalaciones civiles para un centro comercial en Samborondón, Guayas

Abstract

The project develops the seismic-resistant structural design, foundation concept, and civil MEP integration for a shopping center in Samborondón, Ecuador, where soft Type-E soils and poor multidisciplinary coordination can increase rework and risk. The objective is to deliver a safe, efficient, and sustainable solution using BIM, under the hypothesis that digital coordination improves interoperability among disciplines and optimizes cost and schedule. A literature review, a weighted comparison of structural alternatives, and a three-dimensional finite-element model with modal–spectral analysis were performed following NEC-15 provisions and complementary AISC/AWS criteria; geotechnical parameters from the site investigation were also adopted to support foundation selection and settlement control measures. A steel system with braced frames was selected due to quality control, lower environmental impact, and adequate lateral stiffness; the final model showed a 0.47 s fundamental period (below the 0.64 s empirical value) and cumulative modal mass participation above 90%. Shallow strip footings and a 2–3 month surcharge preload were recommended; the estimated cost was US$406.66/m² and the total schedule was 192 days. In conclusion, the integrated design meets code requirements, limits drifts and expected settlements, and provides traceable deliverables for construction. Keywords: BIM; braced frames; strip footings; Type-E soil; construction scheduling.