المحاضرة السادسة والعشرون - مقدمة عن البلاطات المسطحة https://youtu.be/qTGJ9gPw-wY المحاضرة السابعة والعشرون - قص الاختراق في البلاطات المسطحة https://youtu.be/F4awzv62TgY المحاضرة الثامنة والعشرون - استخدام التسليح لمقاومة قص اختراق https://youtu.be/NRpeerUDovw المحاضرة التاسعة والعشرون - الطريقة التجريبية للبلاطات المسطحة https://youtu.be/SeMUQA7u0Q4 المحاضرة الثلاثون - حل البلاطات المسطحة كإطارات https://youtu.be/JzwvndbDo1Q المحاضرة الحادية والثلاثون - الكوابيل والفتحات في البلاطات المسطحة https://youtu.be/mV9GdkF2bzg المحاضرة الثانية والثلاثون - تفاصيل تسليح البلاطات المسطحة https://youtu.be/y-P1KWwiTZA المحاضرة الثالثة والثلاثون - الكمرات الخارجية للبلاطات المسطحة https://youtu.be/m4eJO6Yt_b4 م. أحمد جمال عبد الجواد

1. CHAPTER 10: FLAT SLABS

2. CONTENTS
Introduction to flat slabs
Dimensions & Loads
Check punching
Column & Field strips
Empirical method
Frame analysis method
Design & Reinforcement
Cantilevers & Openings
Marginal Beam
Chapter 10 Problems

3. Introduction
INTRODUCTION TO FLAT SLABS

4. Types:
1- Flat plate
INTRODUCTION TO FLAT SLABS

5. Types:
2- Flat slab with drop panel
INTRODUCTION TO FLAT SLABS

6. Types:
3- Flat slab with column head
INTRODUCTION TO FLAT SLABS

7. Types:
4- Flat slab with drop panel
and column head
INTRODUCTION TO FLAT SLABS

8. Flat vs Solid:
INTRODUCTION TO FLAT SLABS

9. Concept of analysis:
INTRODUCTION TO FLAT SLABS

10. Slab thickness:
DIMENSIONS & LOADS

11. Slab thickness:
DIMENSIONS & LOADS

12. Columns dimensions:
DIMENSIONS & LOADS

13. Column heads:
DIMENSIONS & LOADS

14. Column heads:
DIMENSIONS & LOADS

15. Drop panels:
DIMENSIONS & LOADS

16. Drop panels:
DIMENSIONS & LOADS

17. Loads on slab:
DIMENSIONS & LOADS

18. Punching failure
CHECK PUNCHING

19. Position of column:
CHECK PUNCHING

20. Punching strength:
CHECK PUNCHING

21. Design against punching:
CHECK PUNCHING

22. Resisting punching
using RFT:
* Shear studs
* Shear heads
* Bent bars
* Stirrups
CHECK PUNCHING

23. Stirrups (Integral beam):
CHECK PUNCHING

24. Column strip:
COLUMN & FIELD STRIPS

25. Field strip:
COLUMN & FIELD STRIPS

26. Conditions:
EMPIRICAL METHOD

27. Moments:
EMPIRICAL METHOD

28. Moments:
EMPIRICAL METHOD

29. Modification factor:
EMPIRICAL METHOD

30. Conditions:
FRAME ANALYSIS METHOD

31. Moment of Inertia:
*Columns
FRAME ANALYSIS METHOD

32. Moment of Inertia:
*Slab (Without drop panel)
FRAME ANALYSIS METHOD

33. Moment of Inertia:
*Slab (With drop panel)
FRAME ANALYSIS METHOD

34. Moments:
FRAME ANALYSIS METHOD

35. Cantilevers:
CANTILEVERS & OPENINIGS

36. Openings:
CANTILEVERS & OPENINIGS

37. Openings:
CANTILEVERS & OPENINIGS

38. Without drop
panel:
DESIGN & REINFORCEMENT

39. With drop
panel:
DESIGN & REINFORCEMENT

40. Without marginal
beam:
DESIGN & REINFORCEMENT

41. With marginal
beam:
DESIGN & REINFORCEMENT

42. Introduction:
MARGINAL BEAM

43. Loading:
MARGINAL BEAM

44. Torsion:
MARGINAL BEAM

45. CHAPTER 10 PROBLEMS
(1) It is required to design the flat slab
roof shown in figure. For architectural
purposes, it is not allowed to use drop
panels or columns’ heads.
Fcu = 25 N/mm2. Fy = 360 N/mm2.
L.L. = 4 KN/m2. F.C. = 2 KN/m2.
Walls = 1.5 KN/m2. Floor height = 3.5 m

46. CHAPTER 10 PROBLEMS
(2) Check the safety against punching
failure of a corner column (0.4 x 0.4 m) in
a flat slab system without marginal beams
of a typical panel (6.5m x 6m). The total
ultimate load is 17 KN/m2, ts = 200 mm
and Fcu = 25 N/mm2.

47. REFERENCES
Design of R.C. Structures, Eng. Ahmed Gamal Abdel Gawad.
Lectures in Reinforced Concrete, Eng. Yasser Elleathy.
Design of Reinforced concrete, Dr. Magdy A. Tayel.
Design of Reinforced Concrete Structure II, D. Mashhour A. Ghoneim.
Reinforced Concrete, Dr. Nasr Younis.