Análise da resposta longitudinal de edifício alto sob ação do vento

Abstract

The current construction scenario brings increasingly slender buildings, creating the verticalization of large cities in order to make better use of space. With this advancement, there are greater complexities in the structural analysis of buildings, among all the actions to which they may be subject, there is the consideration of the forces and effects of the wind, an action that requires static and dynamic studies. The present work aimed to analyze the longitudinal response of a tall building under wind action. The wind acting at the two main incidences, 0° and 90°, was analyzed. For this analysis, efforts were previously obtained, based on tests carried out in a reduced model of the standard building of the Commonwealth Advisory Aeronautical Council (CAARC) in a wind tunnel, by Vieira (2016), being analyzed through a computational routine, together with the concepts and applications of the High Frequency Pressure Integration Method (HFPI). The results obtained were compared with established theoretical methods, such as the Davenport method, and with normative indications, such as those proposed by the Brazilian standard. The results showed that the Brazilian standard, even with changes in its calculation procedure, remains below the results in the wind tunnel, and for the neighboring building the transverse response was more significant than the longitudinal one.