The document provides information on structural glazing and curtain walls. It discusses the history and types of structural glazing, including bolted glazing, fin supported glazing, cable supported glazing, and two-sided and four-sided structural glazing. The differences between structural glazing and curtain walls are outlined. Curtain walls are described as non-structural outer walls, while structural glazing involves bonding glass to the building structure. Common curtain wall types like stick systems, semi-unitized systems and unitized systems are also summarized.
2. STRUCTURAL GLAZING-
• NEW TECHNOLOGY AND BETTER
INTEGRATION WITH DAY LIGHTING AND
CLIMATE CONTROL SYSTEMS ALLOW
ADVANCED GLAZING IN BUILDING FACADES
TO-
1. IMPROVE THE COMFORT AND
PERFORMANCE OF BUIDING OCCUPANTS
2. ASSIST IN NATIONAL AND GLOBAL EFFORTS
TO REDUCE GREENHOUSE GAS EMISSIONS
THAT CONTRIBUTE TO GLOBAL WARMING
3. HISTORY OF STRUCTURAL GLAZING-:
• GLAZES WERE USED IN DECORATION OF CERAMICS
IN EARLY EGYPTIAN PERIOD.
• MINERALS(SAND) AND WATER SOLUBLE SALTS
(SODA) WHICH ALTERED THE COLOUR AND
TEXTURE OF FINAL PRODUCT.
• POWDERED GLASS WAS USED AT THE BASE OF
HISTORIC GLAZES.
4. WHY GLAZING INSTEAD OF WALLS AND WINDOWS-
• A GREATER TRANSPARENCY
• LESS VISUAL INTERRUPTIONS
• TRADITIONAL CURTAIN WALL SYSTEMS CONDUCT LARGE AMOUNT OF HEAT IN OR OUT OF THE FACADE
• SINCE THERE IS LITTLE TO NO EXPOSED EXTERIOR METAL,THERE IS ALSO LESS THERMAL BRIDGING WITH
STRUCTURAL GLAZING,SAVING ON ENERGY CONSUMPTION COSTS.
• ASSISTIN NATIONAL AND GLOBAL EFFORTS TO REDUCE GREENHOUSE GAS
5. STRUCTURAL GLAZING-
• STRUCTURAL GLAZING CURTAIN WALL SYSTEMS ARE
ENVELOPE SYSTEMS THAT PROVIDE MAXIMUM
TRANSPARENCY.
• USED AT - COVERINGS OF LARGE INTERNAL SPACES
SUCH AS MALL ENTRANCES, ATRIUMS AND
CONTINUOUS EXTERNAL SKINS THAT ARE LARGELY
SEPARATED FROM BUILDING FLOOR SLAB AND MAIN
STRUCTURE.
• FEATURES ACHIEVED – MAX.EXTERNAL GLAZING
MAX. INTERNAL TRANSPERENCY
7. TYPES OF STRUCTURAL GLAZING-
1.BOLTED GLAZING
2.FIN SUPPORTED GLAZING
3.CABLE SUPPORT GLAZING
4.DOUBLE SIDED GLAZED
5.FOUR SIDED GLAZED
8. BOLTED GLAZING-
FOR EXTERIOR – IT CAN BE DONE WITH SPIDER GLAZING
CONCEPT
ONLY OPTION FOR LARGER OPENING IN ELEVATION
CAN BE CUSTOMIZED
PROVIDES SAFTEY
12 MM, 15MM, 19MM TOUGHNED GLASS
4 WAY SPIDERS,2 WAY SPIDERS AND SINGLE WAY SPIDER
FITTINGS ARE AS OPTIONS
9. FIN SUPPORTED GLAZING-
• GLASS FINS REPRESENTTHE EARLIEST FORM OF
STRUCTURAL GLASS
• GLASS FIN REPLACES A FRAME OR MULLION
• FIN SYSTEMS ARE ALSO DESIGNED WITH BOLTED
JOINTS . IT CREATES GREATER VISIBILITY AND
INCREASE THE NATURAL LIGHT IN INTERIORS
• REACTION LOAD TRANSFERRED TO THE TOP AND
BOTTOM OF THE FIN SHOE
10. CABLE SUPPORT GLAZING-
HIGH TENSILE CABLES OR STAINLESS STEEL RODS – TO
IMPOSE THE LOADS OF THE FAÇADE
TWO MAIN TYPES -1. TENSION ROD FACDE
2. CABLE NET WALLS
SYSTEM SUPPORTS GLASS BY A NET GEOMETRY OF PRE
TENSIONED CABLES
11. Two sided structural glazing-
1. TWO OPPOSITE GLASS EDGES ARE
BONDED TO THE LOAD BEARING
FRAMEWORK.
2. THE TWO OTHER EDES ARE FIXED
MECHANICALLY BY SECURING PROFILES
3. BONDING - VERTICALLY &
HORIZATALLY
4. LOAD TRANSFERRED-
DYNAMIC LOADS ABSORED
FROM STRUCTURAL GLAZING SILICONE
DEAD LOAD IS TRANFERRED
TO SECURING PROFILE
5. BETTER AESTHETIC PURPOSE
12. FOUR SIDED STRUCTURAL GLAZING
1. ALL FOUR SIDES OF THE UNIT ARE HELD IN THE
BUILDING VIA THE SEALANTS
2.USUALLY PREFABRICATED AND THEN INSTALLED AT
SITE.
3. NO MOUNTING WILL BE VISIBLE FROM OUTSIDE.
4. MOST WIDESPREAD AND ECONOMIC SYSTEM.
13. MATERIALS TO BE USED-
• GLASS – 100% RECYCLABLE MATERIAL
• ALUMINIUM – LESS WEIGHT , BUT HIGH STRENGTH
• SILICONE SEALANTS – SAND GEL USED FOR BONDING GLASS
• EPDM – Ethylene Propylene Di Amine Monomer
TO PREVENT WATER AND AIR ENTERING .
• STAINLESS STEEL- AS FRAMING MATERIAL
14. GLAZING SYSTEMS-
COMMONLY USED INNOVATIVE GLAZING SYSTEMS ARE-
• CURTAIN WALLING
• STRUCTURAL GLAZING
• BOLTED GLAZING
• FIN SUPPORTED GLAZING
• CABLE STAYED GLAING
• SUSPENDED GLAZING
15. DIFFERENCE BETWEEN STRUCTURAL GLAZING & CURTAIN WALLS
STRUCTURAL GLAZING
1. SYSTEM OF BONDING GLASS TO A BUILDING’S
STRUCTURAL FRAMING MEMBERS UTILIZING A
HIGH STRENGHT, HIGH PERFORMANCE SILICONE
SEALANTS SPECIFICALLY DESIGNED AND TESTED
FOR STRUCTURAL GLAZING IN STRUCTURAL
GLAZING APPLICATIONS,DYNAMIC WIND LOADS ARE
TRANSFERRED FROM THE GLASS BY THE
STRUCTURE.
2.USED IN LONGER SPANNING APPLICATIONS
3. STRUCTURAL
CURTAIN WALL
1. IT IS AN OUTER COVERING OF A BUIDING IN
WHICH THE OUTER WALLS ARE NON
STRUCTURAL.UTILIZED TO KEEP THE WEATHER
OUT AND THE OCCUPANTS .SINCE THE CURTAIN
WALL IS NON STRUCTURAL.IT CAN BE MADE OF
LIGHTWEIGHT MATERIALS THEREFORE
REDUCING CONSTRUCTION COSTS.
2. TYPICALLY SPAN ONLY FROM FLOOR TO
FLOOR
3.NON-STRUCTURAL
16. CURTAIN WALL-
• EXTERIOR WALL ON BUILDING, WHICH NON STRUCTURAL BUILDING ENVELOPE ELEMENT
• DOESN’T CARRY ANY DEAD LOAD WEIGHT FROM BUILDING OTHER THAN IT’S OWN DEAD
LOAD WEIGHT
• TRANSFERS DEAD LOAD TO MAIN BUILDING THROUGH CONNECTION AT
FLOORS/COLUMN
• GREAT ADVANTAGE- NATURAL LIGHT CAN PENETRATE DEEPER WITHIN THE BUIDING
17. COMPONENTS OF CURTAIN WALL-
• MULLIONS –VERTICAL MEMBERS
TRANSFERS DEAD LOAD OF CURTAIN WALL
THROUGH CONNECTIONS
• TRANSOMS – HORIZONTAL MEMBER
SECTIONS PROVIDED IN BETWEEN MULLIONS
HORIZONTALLY
• SILICON SEALANTS - TO PREVENT MOISTURE
18. TYPES OF CURTAIN WALLS -
1.STICK SYSTEM WALL
ADVANTAGES:
-WATERPROOFING
-EASY FOR TRANSFORMATION
DISADVANTAGES:
-POOR ACOUSTIC AND THERMAL INSULATION
-DIFFICULTY IN QUALITY CONTROL
-TOO MANY LOOSE PARTS AND COMPONENTS ON
SITE
21. ADVANTAGES OF CURTAIN WALLS:
• INCREASES THERMAL EFFICIENCY OF BUILDING
• REDUCES OR ELIMINATES WATER AND AIR FILTERATION
• ALLOWS FOR BROADER ARCHITECTURAL DESIGN FLEXIBILITY
• LIGHTING AND NATURAL VENTILATION
• SMALLER WALL FOOTPRINT-RESULTS INEXTRA AVAILABILITY OF FLOOR AREA
• PARALLEL SCHEDULING-RESULTING IN FASTER INSTALLATION
• IMPROVED NATURAL LIGHT ACCESS-RESULTS IN FLEXIBLE ARCHITECTURAL DESIGN