Method of evaluating the state of conservation of prefabricated reinforced concrete structures

• Autor(a) principal: Luna de Melo, Carlos Eduardo
• Data de Publicação: 2024
• Outros Autores: Dutra Alves, Hisa
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: P@ranoá
• Texto Completo: https://periodicos.unb.br/index.php/paranoa/article/view/44365
• topic: Métodos de avaliação; FMECA; Concreto armado; Pré-fabricados; Instituto Central de Ciências.; Métodos de evaluación; FMECA; Concreto armado; prefabricado; Instituto Central de Ciencias.; Assessment methods; FMECA; Reinforced concrete; prefabricated; Central Institute of Science.

Symbol of the modern trend in the 20th century, exposed concrete is related to a growing concern associated with failures in its maintenance, conservation and conditions of use. Despite the topic importance, there is an insufficiency in studies on integrated and disseminated approaches on systematized methodologies for evaluating these structures. The objective of this work is to propose a method for evaluating the state of conservation of prefabricated reinforced concrete structures, using the FMECA methodology – Analysis of Failure Modes, Effects and Criticality as a reference. Three steps were systematized: system characterization; conservation status analysis; and risk ranking. The prefabricated reinforced concrete pillars of the Instituto Central de Ciências Norte of the University of Brasília were chosen as an object of study due to the relevance of the building, having as a characteristic innovative construction process in the scenario of modern Brazilian architecture. The results showed a moderate level of criticality in relation to the 168 inspected pillars. The analyzes revealed a precariousness in the maintenance, not only of the pillars, but of the entire building. It was concluded that the proposed method meets the objective proposed by the present work.