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WELCOME TO ALL P.A.C.RAMASAMY RAJA POLYTECHNIC COLLEGE RAJAPALAM R.S.MALLESHWARAN A.THEIVARAJ (CIVIL FINAL YEAR)

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THANK YOU FOR SELECT OUR PAPER RECENT TRENDS IN CONSTRUCTION TECHNOLOGY

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ABSTRACT INTRODUCTION TO GLAZING SYSTEMS MATERIALS TO BE USED GLAZING SYSTEMS CURTAIN WALLING TYPES OF CURTAIN WALLS STRUCTURAL GLAZING ACCESSORIES FOR STRUCTURAL GLAZING BOLTED GLAZING FIN SUPPORTED GLAZING CABLE SUPPORTED GLAZING SPIDER SYSTEM SOLAR FACTOR ADVANCED GLAZING SYSTEMS CONCLUSION CONTENTS

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ABSTRACT 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 building occupants, 2) assist in national and global efforts to reduce greenhouse gas emissions that contribute to global warming.

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INTRODUCTION TO GLAZING SYSTEMS Securing glass in openings Glazing is necessary For aesthetic appeal For structural stability To sustain necessary loads To reduce air/water infiltration To optimize day light To minimize energy use

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MATERIALS TO BE USED Glass – 100% recyclable material Aluminum – 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. Temperature unto 110 degree kelvin .

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GLAZING SYSTEMS Commonly used innovative glazing systems are : Curtain Walling Structural Glazing Bolted Glazing Fin Supported Glazing Cable Stayed Glazing Suspended Glazing

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Curtain Walling As the curtain wall is non-structural it can be made of a lightweight material reducing construction costs. When glass is used as the curtain wall, a great advantage is that natural light can penetrate deeper within the building.

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TYPES OF CURTAIN WALLS Work done at

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Image showing structural glazing Structural Glazing Structural glazing is the system of bonding to an aluminum frame utilizing a high-strengthen, high performance silicone sealant. This technique can be used with almost all types of glass, including insulating glass units.

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Accessories for Structural Glazing Mullions (vertical member) Mullions are provided basically to transfer the dead load of the Curtain wall. Transoms (horizontal member) Transoms are aluminum sections provided in between the mullions horizontally. Silicone Sealants Silicone sealants are used to prevent the passage of moisture, air , dust and heat through all the joints . Setting blocks Setting blocks are used to provide support in the relation to the size of glass, glazing techniques and condition of use Location blocks edges of the glass, to prevent movement of the glass within the frame

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BOLTED GLAZING Less Obtrusive Alternative To Structural Glazing This traditional system consists of attaching the glass panels and the structure with rigid bolts and steel plates. Modern bolted systems use knuckled bolts for fixing of the glass, instead of the common fixed bolt.

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BOLTED GLAZING BOLT CONNECTION

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FIN SUPPORTED GLAZING A glass fin is replaces a frame or mullion. The reaction load transferred to the top & bottom of the fin shoe. Fin systems are also designed with bolted joints. It create greater visibility & increase the natural light in interiors.

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Cable supported glazing systems like fin support system are also increasingly used . Cables systems create greater levels of openness, visibility & natural light and enhance the dramatic appearance of the building. CABLE SUPPORTED GLAZING

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CABLE SUPPORTED GLAZING In these systems stainless steel or carbon fiber high strength cables are used to transfer loads to the mainstructure .

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CABLE NET SYSTEM

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BOW TRUSS CABLE SYSTEM

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Spider System is a system for point-supported vertical glazing in which thermally toughened (Tempered) glass sheets are used, in single glazing or in insulated glass. This system is suitable for new-build and is especially effective for the refurbishment of old buildings. SPIDER SYSTEM

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Huge building and shop facades Lobbies, passageways and glasshouses Skylights and domes Walls, interior partitions and internal staircases Stands and furniture Interior designs APPLICATIONS OF SPIDER SYSTEM

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SOLAR FACTOR

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Insulating laminated glass units serve as roof Laminated glass fins serve as beams Vertical rods take the load from the fins Vertical rods transfer load to cables which in turn transfers it to steel trusses ADVANCED GLAZING SYSTEMS

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CONCLUSION Advanced glazing's will be dynamic elements in facades that are fully integrated into building operations, providing day lighting and natural ventilation. By using the modern technology of glazing, we can simplify the construction period, give more stability and good appearance…