advanced building skins 14 | 15 June 2012 - lamp.tugraz.at - Graz ...

Advanced Building Skins
In phase 2, the stresses in the glass, as well as the cable forces rise. In case the glass breaks, the glass
clamp connector described in chapter 5.4 provides residual strength and positioning. The cable end
connectors described in chapter 5.5 can contribute to targeted energy dissipation at this stage and limit
the maximum anchor forces at the main bearing structure.
Activation of Glass Clamp – Activation of Cable End Connector
Cable Connector and if necessary of Glass Clamp Connector
Figure 9: Load and response phases in explosion protected cable net facades. Gartner / Permasteelisa
5.3 Glass Clamp - Cable Connector
The connection between the glass clamp and the cable shown in Figure 10, allows a significant
reduction of glass stress as well as the cable force by converting kinetic energy into deformation
energy [9]. So it prevents already in the phase 1 either, that the glass break, or that in the case of glass
breakage the splinters detach with to high speed from the laminated foil. A crash absorber, e.g. with
aluminum foam, which is positioned between the glass clamp and the cable clamp will be deformed.
To transfer the dead weight of the glass also after triggering the central bolt is decoupled from the
crash absorber.
crash absorber
glass clamp
before triggering after triggering
Figure 10: Patented glass clamp-cable connector before and after plastic deformation [10]
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plastic deformation