Tabla de Contenidos:
  • Machine derived contents note: 1 Material 1
  • 1.1 Production 1
  • 1.1.1 Production of flat glass 1
  • 1.1.2 Production of cast glass and glass profiles 3
  • 1.1.3 Relevant standards 3
  • 1.2 Material properties 4
  • 1.2.1 Composition and chemical properties 4
  • 1.2.2 Physical properties 6
  • 1.3 Processing and glass products 9
  • 1.3.1 Introduction 9
  • 1.3.2 Tempering of glass 9
  • 1.3.3 Laminated glass 14
  • 1.3.4 Insulating glass units (IGU) 15
  • 1.3.5 Curved glass 16
  • 1.3.6 Decorative surface modification processes 16
  • 1.3.7 Functional coatings 18
  • 1.3.8 Switchable glazing 19
  • 1.3.9 Other recent glasses 23
  • 1.3.10 Relevant standards 24
  • 2 General Design Guidelines 27
  • 2.1 The design process 27
  • 2.1.1 Particularities of glass structures 27
  • 2.1.2 Risk analysis 28
  • 2.1.3 Post-breakage behaviour and robustness 30
  • 2.2 Actions on glass structures 31
  • 2.2.1 Particularities of glass structures 31
  • 2.2.2 Wind loads 32
  • 2.2.3 Correlation of wind load and material temperature 33
  • 2.2.4 Seismic loads and movements 35
  • 2.2.5 Impact loads 35
  • 2.2.6 Bomb blast 35
  • 2.2.7 Internal pressure loads on insulated glass units 38
  • 2.2.8 Thermal stress 38
  • 2.2.9 Surface damage 40
  • 2.3 Structural analysis and modelling 40
  • 2.3.1 Geometric non-linearity 40
  • 2.3.2 Finite element analysis 41
  • 2.3.3 Simplified approaches and aids 42
  • 2.4 Requirements for application 42
  • 2.4.1 Vertical glazing 43
  • 2.4.2 Overhead glazing 44
  • 2.4.3 Accessible glazing 45
  • 2.4.4 Railings and balustrades 46
  • 3 Fracture Strength of Glass Elements 49
  • 3.1 Introduction 49
  • 3.2 Stress corrosion and sub-critical crack growth 50
  • 3.2.1 Relationship between crack velocity and stress intensity 50
  • 3.2.2 Crack healing, crack growth threshold and hysteresis effect 52
  • 3.2.3 Influences on the relationship between stress intensity and crack
  • growth 53
  • 3.3 Quasi-static fracture mechanics 55
  • 3.3.1 Stress intensity and fracture toughness 55
  • 3.3.2 Heat-treated glass 57
  • 3.3.3 Inert strength 58
  • 3.3.4 Lifetime of a single flaw 59
  • 3.3.5 Lifetime of a glass element with a random surface flaw population 62
  • 3.3.6 Discussion 70
  • 3.4 Dynamic fracture mechanics 70
  • 3.5 Laboratory testing procedures 74
  • 3.5.1 Testing procedures for crack velocity parameters 74
  • 3.5.2 Testing procedures for strength data 75
  • 3.6 Quantitative considerations 76
  • 3.6.1 Introduction 76
  • 3.6.2 Geometry factor 77
  • 3.6.3 Ambient strength and surface condition 78
  • 3.6.4 Residual surface stress due to thermal tempering 81
  • 4 Current Standards, Guidelines and Design Methods 85
  • 4.1 Introduction 85
  • 4.2 Rules of thumb 85
  • 4.2.1 Allowable stress based design methods 86
  • 4.2.2 Recommended span/thickness ratios 87
  • 4.3 European standards and design methods 88
  • 4.3.1 DELR design method 88
  • 4.3.2 European draft standard prEN 13474 90
  • 4.3.3 Shen's design method 92
  • 4.3.4 Siebert's design method 94
  • 4.4 North American standards and design methods 96
  • 4.4.1 Glass failure prediction model (GFPM) 96
  • 4.4.2 American National standard ASTM E 1300 97
  • 4.4.3 Canadian National standard CAN/CGSB 12.20 99
  • 4.5 Analysis and comments 102
  • 4.6 Conclusion and Outlook 106
  • 5 Design for Compressive In-plane Loads and Stability Problems 107
  • 5.1 Introduction 107
  • 5.2 Parameters having an influence on the buckling behaviour 108
  • 5.2.1 Glass thickness 109
  • 5.2.2 Initial deformation 109
  • 5.2.3 Interlayer material behaviour in laminated glass 109
  • 5.2.4 Boundary conditions and glass fixings 109
  • 5.3 Column buckling 110
  • 5.3.1 Modelling 110
  • 5.3.2 Load carrying behaviour 112
  • 5.3.3 Structural design 113
  • 5.3.4 Intermediate lateral supports 113
  • 5.3.5 Influence of the load introduction 114
  • 5.4 Lateral torsional buckling 115
  • 5.4.1 Modelling 115
  • 5.4.2 Load carrying behaviour 117
  • 5.4.3 Structural design 120
  • 5.5 Plate buckling 122
  • 5.5.1 Modelling 123
  • 5.5.2 Load carrying behaviour 125
  • 5.5.3 Structural design 127
  • 6 Design Methods for Improved Accuracy and Flexibility 131
  • 6.1 Introduction 131
  • 6.2 Surface condition modelling 131
  • 6.2.1 Single surface flaw model 131
  • 6.2.2 Random surface flaw population model 132
  • 6.3 Recommendations for design 133
  • 6.4 Testing 136
  • 6.4.1 Introduction 136
  • 6.4.2 Determination of surface condition parameters 137
  • 6.4.3 Obtaining strength data for design flaws 138
  • 6.5 Overview of mathematical relationships 140
  • 7 Glass Connections 143
  • 7.1 Introduction 143
  • 7.2 Mechanical fixings 144
  • 7.2.1 Linearly supported glazing 144
  • 7.2.2 Clamped and friction-grip fixings 145
  • 7.2.3 Bolted supports 148
  • 7.3 Glued connections 152
  • 7.3.1 General 152
  • 7.3.2 Structural silicone sealant connections 156
  • 7.3.3 Rigid adhesive connections 160
  • 7.4 Recent developments and trends 164
  • 7.4.1 Increasing the post-breakage structural capacity with fabric embeds 164
  • 7.4.2 Increasing the post-breakage structural capacity with new geome-
  • tries 165
  • 7.4.3 High capacity adhesive connections 166
  • 8 Special Topics 169
  • 8.1 Design assisted by testing 169
  • 8.1.1 Introduction 169
  • 8.1.2 Post-breakage structural capacity 170
  • 8.1.3 Impact testing 170
  • 8.1.4 Testing connections 172
  • 8.2 Diagnostic interpretation of glass failures 172
  • 8.2.1 Qualitative analysis of failed architectural glass 174
  • 8.2.2 Quantitative analysis of failed architectural glass 175
  • A Notation, Abbreviations 177
  • B Glossary of Terms 183
  • C Statistical Fundamentals 193.