Manifestações patológicas em estrutura metálica: um estudo de caso da corrosão, causas e consequências em pilares treliçados na cidade de Água Nova-RN

Data
2019-08-14
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Universidade Federal Rural do Semi-Árido

Resumo

Metal structures require care in the design and execution phases that are not yet so widespread in the middle of construction, making this structural system, in general, not as used when compared to other systems. One of the characteristics of steel that deserves the most attention is the natural tendency of corrosion to develop, and this process is the main cause of pathological manifestations in this system. In this context, the following work was carried out a case study of the pathologies in lattice pillars of a structure located in the city of Água NovaRN. It was used as methodology the field visualization of the structure with photographic records, and bibliographic review in order to identify the causes, consequences and solutions for the anomalies found in the inspection. It was verified in the truss pillars of the building the occurrence of uniform corrosion, through cracks and grooves as a generator of structure degradation, where they were caused by design and execution errors, lack of maintenance and preventive inspection. To solve such problems, it was suggested to perform the basic connections according to normative recommendations and a suitable painting system, as well as the preventive maintenance of the building.


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Bessa (2019) (BESSA, 2019)