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BMC II 03 GLASS.pptx
- 1. -- BIRUK D. (ARCH) BMCII 2010/2018 Glass and glass construction UOG INSTITUTE OF TECHNOLOGY
- 2. -- Supercooled liquid Glass isan amorphous, hard, brittle, transparent or translucent super cooled liquid of infinite viscosity, having no definite melting point obtained by fusing a mixture of a number of metallic silicates or borates of Sodium, Potassium, Calcium, and Lead. It possess no definite formula or crystalline structure. • “An inorganic product of fusion which has cooled to a rigid condition without crystallizing” • Does not have a specific melting point • Softens over a temperature range
- 3. -- Glass is anindispensable architectural material. In all the modern building including the high-rise buildings, Glass curtain walls make the skyline.
- 4. -- Contents Basics of glass Useof glass in construction Glass cladding Glazing systems Sustainability in construction
- 5. -- CITY HALL, LONDON| ARCHITECT: FOSTER BREMEN UNIVERSITY, GERMANY | ARCHITECT : JAN STORMER Glass and glass construction Glass house, ARCHITECT: Philip Johnson
- 6. -- Basics of glass specialtyglass Laminated Wire /wired Patterned Frosted / obscure Low – emissivity Basic glass • Sheet • Polished • Tempered • Float
- 7. -- Use of glassin construction Glass in architecture Facades Building fenestration (windows, door) Cladding in facades (structural glazing) Surface treatments: chemical coated Screened (painted) Laminated (printed) construction Glass as material for load bearing elements canopies (sky light),roof wall stair case beam and columns (hardened laminated glass)
- 8. -- Glass bricks /blocks These arehollow glass units or blocks of glass shaped to work as bricks Joined with the help of silicon sealants to obtain seamless finish The two outer, exposed surfaces may be smooth or textured. Glass blocks can be colored and have decorated surfaces. Walls of glass blocks meeting fire resistance are also possible.
- 9. -- Glass bricks/blocks Glass bricks areproduced for both wall and floor applications. • Allows light to pass through maintaining the privacy
- 10. -- Glass cladding Building claddingis the exterior skin, or envelope of a building, and includes all moisture barriers and siding materials used to cover the outside of the structure. Cladding can serve both a decorative and a functional purpose. Building cladding can also add insulation to the structure while minimizing sound transmission through the walls • STONE CLADDING • METAL CLADDING (ACP CLADDING) • STICK FRAME CLADDING • CURTAIN WALL (GLASS) • FIBRE CEMENT CLADDING • BRICK CLADDING Exterior Cladding Interior Cladding • TIMBER CLADDING • PVC CLADDING • STONE CLADDING • BACKPAINTED GLASS CLADDING • CERAMIC CLADDING • WALLPAPER
- 11. -- Glass cladding Back paintedglass (glass art color spray) Popular interior partition wall feature in homes and commercial buildings. Provides posh, clean and sophisticated look Color Spray is a uniquely formulated resin based paint system which is ideal for the back painting of glass for wall claddings in any color imaginable
- 12. -- Glass cladding When itcomes to installation, following are the advantages of a glass façade over a concrete one: •Quicker fabrication & installation of glass façade •In a single day of installation, a glass façade can cover 150 m2 in comparison with brick wall 70 m2. •Dry construction while using glass, which implies a cleaner project site. • Glass is 8 times lighter than a Brick wall facade! • REINFORCED GLASS is a block which can withstand explosions, even (to some extent) nuclear explosions. It is created by combining 7 Glass with 2 Advanced Alloy.
- 13. -- glazing for highrise building Structural glazing for high rise building: •Aesthetics •Signature designs •Flexibility •Strength Glass has a multitude of benefits : Visual appeal •Lightness •Installation •Customization
- 14. -- Glazing systems Curtainwalling Structural glazing Bolted glazing Fin supported glazing Cable stayed glazing Suspended glazing
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- 16. -- Glazing systems Curtain walling •It is non structural it can be made of a lightweight material reducing construction costs. • It has also a great advantage on natural light penetration
- 17. -- Glazing systems Structural glazing •The system of bonding to an aluminum frame utilize high strength. • This technique can be used with almost all type of glass
- 18. -- Glazing systems Bolted glazing •The system consist of attaching the glass panels and the structure with rigid bolts and steel plates. • It is less obtrusive • Alternative to structural glazing
- 19. -- Glazing systems Fin supportedglazing • A glass fin replace a frame or mullion, • The reaction load transferred to the top and bottom of the fin shoe. • It also designed with bolted joints • It crate greater visibility and increase the natural light in interiors
- 20. -- Glazing systems Cable supportedglazing • It create greater levels of openness, visibility and natural light. • It also enhance the dramatic appearance of the building • The system used stainless steel or carbon fiber high strength cables to transfer loads to the main structure.
- 21. -- Glazing systems Spider system •Spider system is a system for point support vertical glazing • The system is suitable for new build and specially effective for the refurbishment of old buildings, • Used for huge building and shop facades Sky light and dome Interior design
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- 23. -- Edge works and connection Scoringand Breaking Glass 1. Clean the surface of the glass 2. Score the glass. Aim for a uniform score with consistent pressure. 3. Break the glass after scoring Tools Needed: - Glass cutter - Oil - Glass pliers - Cutting table - Putty knife, points, single-edged razors
- 24. -- Edge works and connection Heatedagain at around 550degree Celsius giving it the required curved shape to it. • Takes the shape of the mold
- 25. -- Sustainability in construction Glass playsan important role in the concept of sustainable construction or green building. • This combines versatile properties such as transparency, acoustic control, and natural day lighting. • It is also a recyclable material that can result in unlimited innovative applications for construction and building purposes. • The material helps improve energy efficiency, reduces energy CO2 emissions, and offers advanced functionality such as fire protection and self-cleaning properties. Glass and Energy Efficiency • The light transmission property of glass can significantly reduce energy bills, provided that artificial lighting contributes to the building’s energy consumption. • The use of advanced coating, furthermore, helps keep the inside of a building warm during cold weather conditions. • It also prevents the sun’s heat from entering the building during warmer seasons.
- 26. -- Sustainability in construction The Useof Glass Coatings • The coatings on the glass panel can improve thermal insulation of the wall. • Some builders also use double-glazing to enhance thermal insulation and improve acoustic performance. Glass Sustainability • Glass has a low environmental impacts. • Glass is also made of abundant and non-polluting raw materials. • Glass plays an important part in achieving energy efficiency and maintaining air quality inside a building. • The design, construction, and placement of glass are also considered as important aspects in green architecture and building.
- 27. -- Sustainability in construction Better LivingConditions The use of glass in construction enhances the living and working condition of occupants by allowing more natural light into buildings. Research suggests that the use of glass in buildings contributes to improved health conditions and general wellbeing. Advanced and High Quality Glass There is also high quality acoustic laminated glass material with excellent noise reduction qualities that do not affect material impact performance. The preferred acoustic performance of glass can be achieved by combining different glass thickness levels with plastic inter layers
- 28. -- Over all Usesof glass Wall Floor Structural elements: column and beam Openings Stair case Roof Furniture . . . Etc.
- 29. -- Over all Usesof glass Glass flooring • Glass floors are made with transparent glass or translucent glass. • Toughened glass is usually chosen, for its durability and resistance to braking. • Used for residential and commercial buildings in combination with metal frame. Installation Laminated layers of tempered,
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- 31. -- Over all Usesof glass Glass partition vs solid partition in the office VS
- 32. 0 -- Facts Glass takes 1,000,000years to decompose. Glass never wears out-it can be recycled forever. Glass recycling saves resources-each ton of recycled glass replaces 1.2 tons of raw material (sand, limestone and soda ash). The energy saved from recycling 1 glass bottle can run a 100-watt bulb for 4 hours. When glass breaks, the cracks move at speeds of up to 3,000 miles per hour Keep in mind, REUSE
- 33. -- Comparison Density : 2.51g/c3 Thickness : 12mm (Taking into account, a double glazed unit 6mm outer glass - 12mm air gap - 6mm inner glass) Weight/Square meter : 30kg/m2 Block Density : 2000Kg/m3 Thickness : 220mm Weight/Square meter : 440 Kg/m2 So, considering a typical high rise building - 50 stories high with 40,000m2 glass area Estimated weight reduction : 16,400 Ton GLASS
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