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Frameless glass overhead glazing point supported glazing system – i.e. each glass panel is point supported at and near its corners when under loading the glass panel to flex and bend, twist and shear at the fixing points.
To avoid undue stress build-up concentrated at the point supported corners of the glass panel, an articulated swivel head assembly is fixed at the supported point.
Laboratory tests show
that a glass panel fastened with the conventional rigid fixed screw unit,
when under applied loads, bending and shear stresses occur around the
fixing holes of the glass panel. Whereas the same loads applied to the
articulated swivel head 32/22 show that the total stress around the hole
is 70% less than the conventional fixed unit and no bending stress a the
glass hole was detected on the tests.
Glass Point Supported Unit
The ET laminated glass unit was exhibited on the Glass Wholesales Inc. stand at the Glass Building-America Exhibition in Atlanta, Georgia, USA in March 2003.
The visiting architects commented that the unit is ideal for overhead glazing which would eliminate the problem of water leakage and streak markings around the holes. Others suggested that when laminated with a self-cleaning glass there will be a saving on glass cleaning maintenance bills.
In conclusion, ET laminated point supported glass panels are a product which offers the designer and owner advantages one should not overlook.