Inspeção, avaliação da segurança e reforço de uma estrutura de betão

Abstract

The present article deals with the safety assessment and the definition of a strengthening solution to a reinforced concrete structure, that supports a cantilever slab that materialize a marginal boardwalk. The aforementioned structure, constructed in the early 50's of the 20th century is in service. For that reason, a structural safety check, due to the modification of the solution implemented in the superficial layer of the slab is fundamental. After a meticulous inspection campaign that included the structural characterization and the identification of both structural and non-structural pathologies, a numerical evaluation of the structural behavior was carried out, based on the original project of the structure and on the data collected during the inspection phase. The safety assessment has made it possible to establish the the reserve of capacity in each existing reinforced concrete elements and, on a case-by-case basis, to verify the need for a strengthening solution that met with the requirements of more recent structural codes. The proposed article will seek to detail the study carried out, presenting the proposed strengthening solution and emphasizing about the constraints that dominated the definition of the final solution.