Influência do vento no consumo de aço em pilares de um edifício de concreto armado

Abstract

The design of buildings takes into account the loads that act on them. The indication of calculations and consideration for loads from wind are described in NBR 6123/1988, despite that, some professionals do not consider them in their projects. In this context, this work aims to analyze the impact caused by the action of the wind in a four-floor reinforced concrete building. For this, five Brazilian locations were selected, that present characteristic values of wind speed different from each other, in intervals of 5m/s. The forces, dimensions and inputs of the building under analysis were calculated with the assistance of the TQS software, following as a basis the indications of the NBR 6123/1988 and NBR 6118/2014 standards. Through these data provided by the program, the final cost for constructing the columns in the selected cities was obtained. Comparing the results, ti was showed an increase in the final cost for building them. The variation occurs as a function of the increase in the values of the characteristic wind of each analyzed city. Thus, due to the increase in steel consumption in response to wind loads, there was a need to evaluate these loads, even in buildings with few floors, resulting in a more accurate design.