Stresses Found In Structural Members

1. Stresses Found In Structural Members

2. Forces Acting Simply Supported Beam Bending

3. Bending Load Load Applied A Beam will want to Bend Support Wall Below A

4. Bending Load Load A We would prefer if it did this Support Wall Below A

5. Tension Induced Load Load A Support Wall Below A

6. Tension Induced Load Load A Tension If is does what we want Support Wall Below A

7. Counteract Tension Load Load A Reinforcement to counteract Tension Support Wall Below A

8. Counteract Tension Load Load Load Reo for crack control Effective Depth Tension Reinforcement as low as possible Support Wall Below

9. Forces Acting Simply Supported Beam Compression

10. Compression Induced to Top of Beam Load Load A Compression Usually the Concrete can Withstand without Reo Tension Support Wall Below A

11. Compression Acting at Supports Load Load Load Reo for crack control Effective Depth Tension Reinforcement as low as possible Support Wall Below

12. Compression Acting at Supports Load For high compression reo will prevent surcharge Load Load Reo for crack control Effective Depth Tension Reinforcement as low as possible Support Wall Below

13. Compression Acting at Supports Load Load A Support Wall Below A

14. Compression Acting at Supports Load Wall Below Section A-A

15. Compression Acting at Supports Load Wall Below

16. Compression Acting at Supports Load Beam compressed against support by load Wall Below

17. Compression Acting at Supports Load Stirrups placed to prevent bursting Wall Below

18. Compression Acting at Supports Load Load Load Stirrups closely spaced to prevent bursting Support Wall Below

19. Compression Acting at Supports Load Load Load Stirrups spaced further apart as no compressive force Support Wall Below

20. Compression Acting at Supports Load Load Load Stirrups required to support top steel – FRAMING BARS Support Wall Below

21. Forces Acting Simply Supported Beam Shear

22. Shear Acting On Simply Supported Beam Load Load A Support Wall Below A

23. What is Shear? Shear

24. 2 Types of Shear Forces • Vertical Shear • Horizontal Shear

25. Shear Forces • Vertical Shear

26. Shear Forces Load Load Load Support Walls Below resist downward force

27. Shear Forces Load Load Load No Resistance where there is no support

28. Shear Forces Load Load Load Beam will shear at support

29. Shear Forces Load Load Load A B A B Reinforcement at supports to resist shear Stirrups omitted for clarity

30. Shear Forces Load Load Load Support Walls Below resist downward force

31. Shear Forces • Horizontal Shear & Diagonal Shear

32. Horizontal Shear Load Load Load Reinforcement to Prevent Horizontal Shear if requiered Support Wall Below

33. When 2 Types of Shear Forces Meet • Diagonal Tension Cracking

34. Diagonal Shear Load Load Load Stirrups Prevent Diagonal Shear Support Wall Below

35. Multi Span Beam

36. Load on Continuous span Bean Load Load Support Walls Below

37. Load on Continuous span Bean Load Load Support Walls Below

38. Load on Continuous span Bean Load Load Tension Tension Tension

39. Forces that act on Beams Load Load Bending Compression Compression Compression Bending Bending Shear Shear Shear Shear

40. Contra flexure Point of Maximum Bending Point of Maximum Bending Point of Maximum Bending

41. Contra flexure Bending Reduces Bending Reduces Bending Reduces

42. Contra flexure ZERO Bending ZERO Bending ZERO Bending

43. Fixed End Beam

44. Load on Continuous span Bean Load Load Fixed Connection Support Walls Below

45. Load on Continuous span Bean Load Load Tension Tension Fixed Connection Tension Tension Support Walls Below

46. Compression Acting at Supports Load Load Support Walls Below

47. Compression Acting at Supports Load Load Support Walls Below

48. Fixed End Beams Load Load Load Point of Contra flexure Support Walls Below

49. Forces that act on Beams Load Load Fixed or Restrained End Bending Bending Compression Compression Compression Bending Bending Shear Shear Shear Shear

50. Cantilevers