Análisis comparativo de la normativa dispuesta en la ACI 318-19 para el diseño de muros a corte, frente a la NEC-15

Located in a high seismic risk zone, Ecuador demands stringent design codes for constructing safe buildings. The use of structural walls has been a common approach in countries facing similar seismic threats to enhance building safety among natural disasters. These walls play a crucial role in improving a structure’s behavior during seismic events by withstanding various forces such as lateral, shear, axial, torsional, and bending loads. The Ecuadorian Construction Standard (NEC-15) serves as the governing standard in Ecuador, yet as of 2024; it has not undergone updates, potentially leaving gaps in the design of reinforced concrete shear walls. This research aims to conduct a comparative analysis between the ACI 318-19 and NEC-15 standards for shear wall design, employing a comparative, descriptive, and quantitative methodology. To assess design considerations and parameters, a seven-story architectural model of single-family apartments with an accessible terrace was utilized. The model includes pre-dimensioned elements like lightened slabs, hanging beams, columns, and walls in both XX and YY directions. Analysis of this architectural model was carried out using the ETABS program under both NEC-15 and ACI 318-19 standards. The comparison generated differences in the structure’s behavior concerning story drifts, displacements, eccentricities, and acting forces. Precisely, the design of walls was compared, leading to the conclusion that ACI 318-19 imposes higher reinforcing steel demands in shear walls compared to NEC-15.

• Main Author: Banshuy Lluco, Jhon Paul (author)
• Other Authors: Guamunshi Cali, Elian Fabricio (author)
• Format: bachelorThesis
• Language: spa
• Published: 2024
• Subjects: Muros estructurales; Muros a corte; Comparación de normativas; Hormigón armado
• Online Access: http://dspace.unach.edu.ec/handle/51000/12570