Engenharia Civil
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Navegando Engenharia Civil por Assunto "Acidentes em galpões"
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Monografia Acesso embargado Estudos dos acidentes em galpões ocorridos pela ação do vento: avaliação dos danos ocorrido na tempestade de 16 de outubro de 2016 em Tubarão - SC(2017) Rocha, Douglas Heidemann; Botega, Raul RodriguesOn October 16, 2016, in Tubarão - SC, there was a frontal and convective system of high magnitude (storm), where there was great damage to houses and sheds. From the data provided by the civil defense, more than 150 companies had their activities interrupted or gone bankrupt, due to the great damages caused by the storm. Therefore, the present study had the purpose of evaluating the main factors that were related to the accidents in sheds caused by the wind action. Through an exploratory case study, we conducted interviews with owners or managers of the industrial sheds, being collected data of 22 buildings in the city of Tubarão. For the comparative effect between the event and the NBR-6123, two sheds were calculated where the loads generated by the storm data and isopleths to the region according to NBR 6123 were analyzed. For the determination of wind speeds and directions of the storm, Engie made available the data obtained in the anemometer during the storm, after calculations and corrections the maximum burst reached 50 m/s (180 km/h), at 10 meters high, being compatible with the observed damages according to the bibliographies. For comparative purposes, the wind from the storm caused a 24% increase in load when compared to the wind of the NBR 6123 isopleths. The results show that 3 sheds were damaged by objects thrown by the wind, and there damage were limited to the roof tile. The aerodynamic factor and external pressure caused almost complete shattering and in some cases damage to the roof structures in 8 sheds, however, 2 sheds presented greater damage due to a possible bracing deficiency. Finally, internal overpressure was the factor that was present in 9 buildings that occur the greatest damages, being provoked by the rupture of the main openings to windward, which allowed internal overpressure and external suction pressure to make great efforts. In general, the work evidenced the need to dimension with greater accuracy the openings of large areas in the windward, and the correct evaluation of the characteristics of the wind and the terrain for an efficient calculation of the loads.