Influência da corrosão das armaduras na segurança estrutural de pontes de concreto armado: modelo analítico.

Abstract

In civil construction, maintaining and caring for buildings is as important as building them, because in this way the quality projected for a given enterprise is maintained for longer periods. In this context, the present work seeks to examine how the safety of bridges - works of art of extreme importance, since they are linked to human development - is affected by corrosion. The analysis of this theme will consist in the elaboration of an equation or analytical method that allows in any situation, to obtain the working state (ET) of a bridge that suffers from corrosive attacks. The methodology used in this study comprises the analysis of the behavior of E.T through the investigation of how the curve of the latter behaves with the advance of corrosion, and with these results to develop a computational code that provides the quantification of E.T quickly. After the investigation, the results showed that the ET curve depends on the initial design conditions, and coupled with this, it is observed that the structures with larger steel gauges are less tolerant to the reduction of the useful steel area due to corrosive effect, which implies a closer monitoring of these structures.