Estudo de viabilidade de implementação de guarda-corpo metálico em obras de construção civil: análise de segurança e viabilidade econômica

Abstract

Civil construction has been standing out on the national scene as it has a large share of the country's Gross Domestic Product (GDP). The understanding of Occupational Health and Safety (OSH) in civil construction is very important, knowing that the sector is one of the sectors that suffers most from work accidents in Brazil, mostly due to accidents at high heights. Because of this, regulatory standards (NR) were created seeking to reduce the risk of accidents at work. With that, the present work sought to find the best material for the installation of temporary guardrails in civil construction works, looking at the economic, social and environmental side. From tests, it was shown the most resistant material and which had a smaller displacement when requested horizontal efforts, always seeking to meet the minimum criteria established by NR 18, a quantitative survey of the materials that are used in a tower in the work was also carried out and material costs, both in the construction of the railing. Finally, a budget for the metal railing was made and its implementation analyzed by the construction company using an adaptation of the payback return on investment analysis tool, finding through it how many towers the metal railing needs to be reused for that there is a return on investment taking into account the expenses with the wooden railing.