August 7, 2005

built sort of like ruby slippers...

The big flagship Apple Stores, in NY, London, SF, Tokyo, etc, have these very cool glass staircases enticing people up to the next floor.

Turns out there's a LOT of engineering needed to build a glass stairway. (What a surprise.)

...The staircases are constructed of 3-ply glass treads, bonded together with a Dupont SentryGlas Plus ionoplast interlayer. The treads are tied through titanium hardware to the glass side panels. The treads are surface acid-etched to provide slip and privacy protection.

Specifically, the glass treads at the SoHo store consist of an 8mm extra clear Depp Glass Diamond Plate layer, a 0.060-inch DuPont SentryGlas Plus ionoplast interlayer, a 15mm extra clear Diamond Plate layer, another 0.060 DuPont SentryGlas® Plus ionoplast interlayer, and another 8mm extra clear Diamond Plate layer.

The staircase vertical, laminated glass sidewalls were supplied by BGT Bischoff Glasstechnik GmbH (Germany). They consist of a center 15mm laminate, with 12mm layers on either side. The side glass panels range up to 5.8m high x 1.6m wide, which O'Callaghan said generally need to be craned in through the skylight roof during off peak hours....

...Two recent stores took the glass staircase to another level--a 180-degree twist. Both the Shinsaibashi and Shibuya stores in Japan feature a spiral glass staircase which is suspended by cables from the ceiling. The staircase is an engineering marvel, but also creates a strong attraction for visitors to ascend to the second floor. Review
photos of the store and staircase taken during its grand opening....

I find this kinda stuff fascinating...

Posted by John Weidner at August 7, 2005 8:59 AM
Weblog by John Weidner