Lecture
This lecture covers the analysis of efforts in trusses, focusing on the maximum values and the sign of the efforts in the different members. It discusses the efforts in the upper and lower members, as well as the diagonals, emphasizing the compression and tension forces. The lecture also explores the relationship between effort, height, and bending moments, illustrating how these factors impact the overall structure. Additionally, it delves into the significance of effort distribution in trusses with constant height and diagonal inclination. The instructor concludes by summarizing the key points related to arc-and-cable structures, including pre-sizing considerations.