1. ASCE Wind Loads SESSION 1-2 Wind Engineering Theory: Bluff Body Aerodynamics

2. ASCE Wind Loads Introduction Buffeting - Forced vibration from upwind turbulent winds (Note - I say vibrations for a stiff or flexible structure) Vortex Induced Motion - Forced vibration from regular turbulence in wake (downwind) Aeroelastic Vibrations - Vibrations caused by motion dependent aerodynamic loads

3. ASCE Wind Loads Bernoulli's Equation Along a streamline

4. ASCE Wind Loads

8. BERNOULLI'S EQUATION NB ~UNLESS NOTED, ALL PRESSURES ARE SUCTIONS (NEG) ALL PRESSURES ARE DYNAMIC, i.e., p(t)

9. ASCE Wind Loads PRESSURE COEFFICIENTS NB ~PRESSURES ARE A FUNCTION OF THE BUILDING SHAPE AND THE WIND SPEED. PRESSURE COEFFICIENTS ARE A FUNCTION OF THE SHAPE ALONE.

10. ASCE Wind Loads PRESSURE COEFFICIENTS

11. ASCE Wind Loads Video of Cladding Pressures Courtesy of Wind Science and Engineering, Texas Tech Univ.

12. ASCE Wind Loads Cladding Pressures Courtesy of Wind Science and Engineering, Texas Tech Univ.

13. ASCE Wind Loads Cladding Pressures Courtesy of Joe Minor, Consulting Engineer

14. ASCE Wind Loads Cladding Pressures Courtesy of Wind Science and Engineering, Texas Tech Univ.

15. ASCE Wind Loads Cladding Pressures Courtesy of Wind Science and Engineering, Texas Tech Univ.

16. ASCE Wind Loads Cladding Pressures Courtesy of Wind Science and Engineering, Texas Tech Univ.

17. ASCE Wind Loads Cladding Pressures Courtesy of Wind Science and Engineering, Texas Tech Univ.

18. ASCE Wind Loads Cladding Pressures Courtesy of Wind Science and Engineering, Texas Tech Univ.

19. ASCE Wind Loads Cladding Pressures Courtesy of Wind Science and Engineering, Texas Tech Univ.

20. ASCE Wind Loads Internal Pressures Courtesy of Joe Minor, Consulting Engineer

21. ASCE Wind Loads Internal Pressures Courtesy of Joe Minor, Consulting Engineer

22. ASCE Wind Loads Internal Pressures Courtesy of Wind Science and Engineering, Texas Tech Univ.

23. ASCE Wind Loads Internal Pressures Courtesy of Wind Science and Engineering, Texas Tech Univ.

24. ASCE Wind Loads Internal Pressures Courtesy of Wind Science and Engineering, Texas Tech Univ.

25. ASCE Wind Loads Vortex Shedding

26. ASCE Wind Loads Wind tunnel: Vortex shedding

27. ASCE Wind Loads Aeroelastic Action

28. ASCE Wind Loads Aeroelastic Behavior Tacoma Narrows Bridge