Estudo de caso : ciclo de inspeções e ensaios em ponte ferroviária

Abstract

Works of art are subject to deterioration processes due to exposure to aggressive environmental agents and structural demands of different natures and magnitudes, so inspection cycles are important in maintaining and monitoring the state of conservation of structures and in regarding their structural state, safety, functionality, and durability. This work, dedicated to the presentation of the inspection history of a railway bridge, presents the gradual evolution of the anomalies identified in the OAE elements, with their respective classifications according to NBR 9452: 2019, given the late recovery action of the elements in critical condition, and with that, the need for tests and calculations for the reinforcement design of the main elements. Extensometry tests, the main object of analysis in this study, played an important role in analyzing the stresses and deformations of the elements, aiming to conclude whether the structure meets structural safety conditions.