Structural Recovery of the Ponte da Torre

Identification and Analysis of Pathological Manifestations, Testing, and Adopted Solutions

Abstract

This article presents the main pathological manifestations identified in the Ponte da Torre (Tower Bridge), the destructive and non-destructive tests conducted for accurate diagnoses that confirm the structural compromise, as well as the methods adopted for the recovery of this Special Engineering Structure (OAE). Tests performed include core extraction, corrosion potential, surface electrical resistivity, carbonation, rebar scanning, chloride profile, and compressive strength testing. The Tower Bridge is a structure of high architectural and infrastructural importance for the city of Recife, serving the traffic demands of the northern zone of the capital of Pernambuco. Recognizing its significance, it is evident that preserving this OAE for future generations is necessary, incorporating principles of conservation, recovery, restoration, and more recently, sustainability. This study is part of the practice and execution of projects, interventions, and requalification efforts in the contemporary city, where the influence of the environmental aggressiveness class due to the surrounding environment is a fundamental factor for understanding the damage found in the bridge. Despite this, it was observed that one side of the structure shows more damage than the other, necessitating greater reinforcement on that side. The severe deterioration of the structure, especially of the concrete, in the Tower Bridge is directly related to the lack of regular inspections and corrective maintenance. Through this study, knowledge was gained regarding the procedures and methods that support and inform sustainable solutions adopted to ensure the safety and durability of the bridge.