Estudio patológico para intervención del puente Mojao - Atánquez

Abstract

This graduate project, entitled Pathological Study for the Intervention of the Mojao–Atánquez Bridge, develops a comprehensive structural diagnosis of this steel–concrete composite infrastructure located over the Candela River in the district of Atánquez, municipality of Valledupar (Cesar), with the aim of establishing technical intervention criteria to ensure its safety, durability, and structural performance in accordance with current Colombian regulations. The research was conducted as a case study under an analytical–diagnostic approach, supported by documentary review, structural clinical history assessment, systematic visual inspection, photographic record, and technical correlation with the guidelines of the INVIAS Bridge Evaluation and Rehabilitation Manual, NSR-10, and CCP-14. The results identified active cracking in the deck slab, loss of concrete cover with reinforcement exposure, persistent moisture and carbonation processes in the abutments, as well as advanced corrosion in IPE steel girders with visible section loss and generalized deterioration of the anticorrosive protection system. In addition, conditions compatible with erosion and potential scour at the supports were observed. The findings allow the bridge condition to be classified as moderate to severe deterioration, with progressive loss of global stiffness and reduction of its remaining service life. It is concluded that, although the structure still preserves overall stability, it shows increasing vulnerability to dynamic, environmental, and seismic actions, making an integral intervention focused on structural rehabilitation and durability control technically necessary.