2. WHAT IS STRUCTURAL GLASS?
• GLASS… IS GLASS – SAND / SILICA, SODA, LIME ETC.
• STRUCTURAL GLASS
o GLASS CONSTRUCTION WHERE A PORTION OF
THE EXTERNAL LOADS ARE RESISTED BY THE
GLASS RATHER THAN A FRAME
• GLASS CAN FORM PRIMARY, SECONDARY AND
TIERTARY STRCUTURES
5. STRUCTURAL GLASS COMPONENTS
• HOW DO YOU MAKE GLASS INTO A
STRUCTURE ?
1. TREAT THE GLASS TO MAKE IT STRONGER - HEAT
2. COMBINE MULTIPLE LAYERS OF GLASS – LAMINATION
3. STICK THE LAYERS OF GLASS TOGETHER – INTERLAYERS
4. CONNECT PIECES OF GLASS TOGETHER – CONNECTORS &
ADHESIVES
5. COMBINE OR CONNECT GLASS STRUCTURES BACK TO
OTHER STRUCTURES
30. DESIGN CODES
• Australia – AS 1288 – 2006
• US – ASTM E1300-09
• Europe – EN 13474-3 (Draft only!)
• Reasonably similar in approach
• Define allowable stress, modification factors, duration
factors
• Some have calculations for effective thickness
• Simple stress calculations and design tables
• AS 1288 has simple fin buckling equations
31. KEY POINTS ON DESIGN
• Allowable stress design – what’s my allowable stress?
• Base allowable stress
• Material factors – Glass type
• Load Duration factors
32. KEY POINTS ON DESIGN
• Effective thickness – how thick is my glass?
• Glass thickness and ply
• Interlayer Properties
• Load Duration factors
• Length of element
• Calculate or use FE analysis?
33. KEY POINTS ON DESIGN
• Redundancy
• Glass does not yield, so when it fails.. It fails
• Design incorporates potential failure mechanisms
35. KEY POINTS ON DESIGN
• Deflections and Drifts
• Glass stiff compared to surrounding structure, movements need to be
tightly controlled
• Joints between glass panels dependent on relative movement
• Allow movement of glass and other structure be independent – sliding
connections
36. ANALYSIS AND DESIGN METHODS
• Analysis – how complicated?
• 2D beam → 2D plate → 3D brick
42. MODERN TECHNOLOGIES
CORNING® GORRILLA® GLASS
Corning developed Gorilla® Glass in response to a need for improved
screens on handheld devices
Touch screen technology → greater demands on screen quality:
• High strength
• Lightweight
• Scratch resistant