JOURNAL OF FACULTY OF CIVIL ENGINEERING 20, 2011.y., pp. 101-112
GLASS FACADE AND GLASS GIRDERS AS THE BEARING STRUCTURE| |
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| UDC: 624.012.6:691.18.5 |
| CC-BY-SA 4.0 license |
| Author : Miroslav T. Bešević |
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| | Summary: |
| | This paper presents basic design principles for the bearing glass structuresgirders and glass thickness design within the glass facade as a function of laods that
affect them. These girders are primarilly used as a roof supportnig structures withnin
old town centers because they do not disturb their exterior. Mechanical properties of
light facade structures are different to conventional steel or concrete structures. Glass is
not allowed to have cracks and it is much more brittle than steel. Due to low values for
the Young modulus of elasticity which is for glass aproximativelly 1/3 of the one in steel,
buckling and large deformations are of great significance during the design procedures.
Glass is brittle material with low comperssion strength due to its molecular structure
that is not in crystallin state. Steel as a beam girder behave simmilar to steel in bending.
Upon reaching the limit stresses glass failure is sudden and without warning comapred
to the failures in alimiunm and steel girders which have pronounced plastic
deformations. Tempered safety glass is suitable for use in residential and office
buildings (stairs, doors, partition and sliding walls, balcony and stariway railings),
sport facilities (ball shock resistant), near heating instalations (prevention of heat
failure), for glass facades and different exterior and interior usage (noise protection on
highways, terminals, bilboards, showcases,..). |
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| | Keywords: |
| | glass, glass girders, steel, аluminium, buckling, design, deformations, codes,
failure |
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