Punching Shear in Flat Slabs: Analysis and Design

This lecture focuses on the phenomenon of punching shear in flat slabs, discussing its implications in structural engineering. The instructor begins by introducing the concept of punching shear and its relevance to the design of flat slabs. Key parameters such as crack width and their correlation with shear forces are examined. The lecture delves into the critical section of slabs, emphasizing the importance of understanding shear forces and their distribution. The instructor explains the theoretical framework behind punching shear, including the critical crack theory and its application in design codes like SIA 262. Various examples and case studies are presented to illustrate the practical aspects of analyzing and designing for punching shear. The lecture concludes with a discussion on the necessary anchorage of reinforcement in flat slabs to ensure structural integrity under load. Overall, this lecture provides a comprehensive overview of the principles and practices related to punching shear in flat slabs, equipping students with essential knowledge for their future engineering projects.