Influência de variações geométricas no desempenho de treliças de madeira

Abstract

This study aims to assess the structural behavior of various wooden truss configurations employed in roof systems through structural analysis and design. The structure analyzed corresponds to a commercial building and is subjected to different modifications, including height reduction and partial or complete removal of internal members. The evaluations were conducted in accordance with the standards ABNT NBR 7190:2022, NBR 6120:2019, and NBR 8681:2004, considering both ultimate limit states (ULS) and serviceability limit states (SLS). The results indicate that the original truss configuration provides superior global performance, while significant alterations—such as the complete removal of internal elements—adversely affect the stability and safety of the structure. The application of structural analysis software, including Ftool and VisualVentos, proved essential for ensuring analytical precision and evaluating multiple structural scenarios. It is concluded that the rational use of timber, combined with proper structural design, enables the development of safe and efficient structural solutions.