Evaluación del desempeño sísmico de un muelle en 2D en un puerto de Guayaquil, mediante el método Pushover e integración de Curvas Py utilizando un software de elementos finitos.

Abstract

The ports of Guayaquil are a fundamental pillar for Ecuador's economic growth due to their strategic location, which connects with the rest of the continents. Therefore, it is essential to ensure that their infrastructure guarantees functionality and resilience over time. The present study aims to evaluate the structural performance of a pier by applying the technical criteria outlined in the ASCE 61-14 standard. For this purpose, p-y curve models were developed based on the received geotechnical borehole data. Moment-curvature and moment-rotation diagrams were idealized as bilinear, based on the geometry and reinforcement details of the structural elements. Subsequently, using finite element software, a nonlinear static method (Pushover) was applied to determine the pier's capacity curve. The capacity spectrum and demand spectrum were then determined under the guidelines of the ATC-40 standard, using elastic response spectra as per NEC-15 for return periods of Tr = 72 years (OLE), Tr = 475 years (CLE), and Tr = 2500 years (DE). The results showed that the structural performance of the pier meets the criteria established in the ASCE 61-14 standard regarding the comparison between the pier's demand and capacity. The strain limits for concrete ("єc") and reinforcing steel ("єs") also comply with the standards specified in the reference standard for piers. Keywords: p-y curves, plastic moment, unit deformation, demand, capacity, Pushover, ASCE 61-14, wharf.