STR04 L06a - Wind Loads Fundamentals

This is a lecture addressing fundamentals of wind loads on structures and buildings. In this lecture we'll talk about the fundamentals of wind loads including aerodynamic effects, atmospheric effects, and how these concepts are handled to develop baseline velocity pressures that are used later to determine design pressures and forces on structures for the main wind force resisting systems or for components and cladding. 0:34 - Slide 3: Resources 2:13 - Slide 5: Introduction 3:06 - Slide 7: Aerodynamic Effects 4:15 - Slide 9: Stagnation Points and Separation Zones 8:13 - Slide 13: Bernoulli’s Theorem 14:22 - Slide 21: ASCE 7 Fundamental Equation for Velocity Pressure 15:11 - Slide 22: External Pressures 17:52 - Slide 26: Internal Pressures 21:34 - Slide 30: Atmospheric Effects 29:03 - Slide 41: Boundary Layer Effects 31:18 - Slide 45: Exposure and Directionality 34:29 - Slide 52: Gust Effects 37:44 - Slide 56: Topographic Effects 39:07 - Slide 58: Wind Directionality 41:21 - Slide 62: Ground Elevation 42:24 - Slide 63: Conclusions   An example of wind loads acting on a billboard sign is available here:    • Billboard Wind-Load Example - Part A   Keywords: ASCE 7-16: 2016 American Society of Civil Engineers Minimum Design Loads and Associated Criteria for Buildings and Other Structures IBC 2018: International Building Code Snow Loads, Structural Engineering, Load Determination