Glass use in Architecture – part 2
In modern glass building use of frames to support glazing has ended, achieving complete transparency and continuity of the construction. Glazing is suspended from a support system, which is fixed to the structural elements of the building. The predominant ways of supporting structural glass are three, in various combinations and variations:
- Steel frame. In its simplest version is a conventional metal frame into which the glazing is secured. Such modern systems are very flexible: they can be external and visible or internal and almost invisible.
- Transparent glass “fins”. These glass elements are made of safety glass and are usually hung from the roof of the building inside the glazing. The glazings are secured with appropriate links to the flaps, transferring to them the burden and providing protection against horizontal forces due to wind. The posting of the flips capable of small displacements, e.g. rotation around a metal rod, provides protection from thermal expansion or moving loads.
- Support through tension cables. In some of the most innovative modern structures cables under tension have been used to support the glass. Such systems consist of a metal frame surrounding the glass, one or more tissues and grid wires.
The connectors used in structural glass systems are made of stainless steel. The selection and planning plays a key role in the transport of cargo and depends on various factors such as the type of glass, the support system, the design and use of the building loads calculated of receiving. The most common link is the component “spider” or “star” type. There is also the advanced version with sliding arms to assimilate any glazing shifts up to 25 mm in case of earthquake. Within the framework of research to achieve absolute transparency of glass surfaces with minimal frame, the latest technological breakthrough in the category of links is the accessories that are embedded on the glass.
This article is for www.speedfab.com