Building Structures and Technology Lecture Notes

4
(Last Updated On: October 6, 2018)
Building Structures and Technology Lecture Notes
Building Structures and Technology Lecture Notes

TABLE OF CONTENTS
TOPIC 2: FLOOR FRAMING SYSTEMS 

  1. GENERAL. 5
    1.1 Purpose: 5

    1.2 Factors affecting the selection of a floor system:. 5
  1. TYPES OF FLOOR SYSTEMS . 5
    2.1 One way spanning slabs . 6

    2.2 Two way spanning slabs . 9
    2.3 Beams for one and two way spanning slabs . 10
    2.4 Flat slabs  10
  1. PRESTRESSED CONCRETE. 12
  2. CHOOSING AN APPROPRIATE FLOOR SYSTEM 12

TOPIC 3: FACADES

  1. WHAT IS A FAÇADE? 14
  2. CLASSIFYING FACADES 14
  3. A FACADE TOUR 15
  4. COMMON ISSUES:. 15
    4.1 Weatherproofing . 15

    4.2 Allowing for movement . 16
  1. EXAMPLES OF DEFECTS 16

TOPIC 4: LOADING 17

  1. INTRODUCTION 17
  2. LOAD COMBINATION. 17
  3. DEAD LOAD (G). 18
  4. LIVE LOAD (Q) 18
  5. WIND LOAD (W) 18
    5.1 Wind load depends on. 18

    5.2 Design wind load  19
    5.3 Factors 19
    5.4 Basic pressure (p’) 19
  1. EARTHQUAKE LOAD
    6.1 Earthquake load depends on  20

    6.2 Static analysis . 21
    6.3 Total base shear force (V)  21
    6.4 Horizontal earthquake force at each level (Fx)  21

7 EXAMPLE 

TOPIC 5: LIMIT STATE DESIGN AND METHODS OF ANALYS IS. 23

1. C ONCEPT OF L IMIT S TATE D ESIGN
1.1 Working Stress Method. 23
1.2 What is Limit State Design? . 23
1.3 Limit State Design (Adopted in AS4100)  24

  1. M ETHODS OF A NALYSIS 25
    2.1 1st order Elastic Analysis . 25

    2.2 2nd order Elastic Analysis  26
    2.3 1st Order Plastic Analysis  26
    2.4 Elastic Buckling Analysis  26
    2.5 Advanced Analysis  26
  1. S ECOND O RDER E FFECTS. 26
    3.1 Moment Amplification Factor. 26

    3.2 Braced Member  27
    3.3 Sway Members  28

TOPIC 6: FRAME ANALYSIS 

TOPIC 7: DESIGN OF REINFORCED CONCRETE FLOOR SLABS

  1. I NTRODUCTION 30
  2. O NE- WAY SPANNING REINFORCED CONCRETE SLABS. 31
  3. W HAT AFFECTS THE DEFLECTION OF SLABS
    3.1 Shrinkage  32

    3.2 Creep. 33
    3.3 The value of I  33
    3.4 Span to depth ratios 34
  1. T WO WAY SPANNING REINFORCED CONCRETE SLABS. 37

TOPIC 8: FOOTINGS

  1. I NTRODUCTION 39
  2. R EVIEW REINFORCED CONCRETE THEORY 39
    2.1 Bending failure . 39

    2.2 Shear failure . 40
  1. A PPLY THIS TO FOOTINGS?. 41
    3.1. Footings can fail in bending as a wide beam, . 41

    3.2. Footings can fail in shear as a wide beam, . 42
    3.3. Footings can fail in a third way, by punching shear . 43

TOPIC 9: COMPOSITE FLOOR SLABS

  1. I NTRODUCTION 45
  2. D ESIGN ISSUES . 48
  3. F LEXURAL THEORY FOR COMPOSITE SLABS . 48
    3.1 Negative bending  48

    3.2 Positive bending 48
  1. M INIMUM SLAB THICKNESSES 51

TOPIC 10: COMPOSITE STEEL-CONCRETE BEAMS

  1. I NTRODUCTION 52
  2. R EFERENCES 54 3. S HEAR CONNECTORS 54
  3. S HEAR STRENGTH OF WELDED STUD SHEAR CONNECTORS, FVS 55
  4. D ESIGN ISSUES . 55
  5. E FFECTIVE WIDTH OF THE SLAB, BCF 57
  6. D ESIGN OF THE SHEAR CONNECTION 58
  7. U LTIMATE STRENGTH OF THE CROSS SECTION . 60

9.LONGITUDINAL SHEAR IN THE CONCRETE

TOPIC 11: STEEL BEAMS

  1. S ECTION C LASSIFICATION . 62
  2. S ECTION C APACITY. 63
    Example 1.  64
  1. E FFECTIVE L ENGTH . 65
  2. M EMBER C APACITY. 65
    4.1 Behaviour 65

    4.2 Capacity 66
    Example 2 . 68

TOPIC 12: STEEL COLUMNS

  1. F ORM F ACTOR. 70
    Example 1 . 71
  1. S ECTION C APACITY. 72
  2. M EMBER C APACITY. 72
    3.1 Behaviour 72

    3.2 Capacity 75
    Example 2 . 76

TOPIC 13: STEEL BEAM-COLUMNS

  1. C OMBINED A CTIONS 79
  2. S ECTION C APACITY. 80
    Example 1 . 81
  1. M EMBER C APACITY. 82
    Example 2 . 84

TOPIC 14: STEEL CONNECTIONS

  1. T YPE OF C ONNECTIONS . 86
  2. S HEAR C ONNECTIONS (F LEXIBLE E ND P LATE) 87
    2.1 Connection Details . 87

    2.2 Possible failure modes  88
    2.3 Design capacities  89
  3. M OMENT C ONNECTIONS (B OLTED E ND P LATE) 90
    3.1 Connection Details . 90

    3.2 Actions and possible failure modes  92
    3.3 Design capacities  95

 

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