Frames: Intermediate Structures

This lecture explores the concept of frames as intermediate structures between arches and beams, analyzing their design and functionality through examples such as a concrete bridge and an electrical pole. Frames are characterized by their ability to withstand both vertical and horizontal loads, providing a larger space but requiring more material compared to simpler structures. The instructor discusses the decision-making process behind choosing frames over other structural types, emphasizing their role in optimizing functionality and safety in various engineering applications.