ProjectNews: FLOORS & STAIRS  
Clear Views: Glass Floors and Stairs  
Give Architects Design Versatility  
tringent building code require-  
ments can be a challenge for  
architects when it comes to  
S
constructing striking designs. Fortu-  
nately, glass products are available that  
can help meet the desired aesthetic.Of-  
fering unobstructed views and design  
versatility, glass can give architectural  
projects a unique look—especially  
when it comes to floors and stairs.  
Here’s a look at two recently-com-  
pleted projects. One is a unique, all-  
glass staircase in a classic cultural  
center in New York City designed to  
offer the illusion of space. The other  
features an innovative glass flooring  
system meant to support a heavi-  
ly-trafficked student area at a univer-  
sity in Virginia.  
AGNORA supplied tempered and  
laminated glass for the Onassis  
Cultural Center’s all-glass structural  
staircase in New York City.  
Stepping Up  
Onassis Cultural Center  
Location: New York, N.Y.  
Architect: Perkins Eastman  
parts of the staircase are comprised of  
either 3- or 4-ply heat-treated 12-mm  
thick glass, and all horizontal compo-  
nents are annealed. The staircase treads  
Architectural Glass North America); terns that can be applied to glass. The are 4-ply,and the landing is all 5-ply glass.  
product was selected for traction and AGNORA worked closely with two  
engineering partners on the project,  
Glazier: Mistral Architectural Metal  
&
Fabricator/Glass Supplier: AGNORA  
Glass  
(
Walker Glass  
Products: 12-mm Starphire glass with resistance to surface contamination.  
Pattern 406 tempered and laminated  
The middle landing is completely Michael Ludvik Engineering, the de-  
Charged with enlarging the Onassis unsupported and cantilevered. The sign engineer, and Eckersley O’Cal-  
Cultural Center’s (OCC) gallery space at vertical stringers are a unique fabri- laghan, the review and installation  
the lower level, as well as increasing its cation of 4-ply, SGP-SentryGlas struc- engineer. The companies performed a  
visibility from within its atrium, Nicky tural laminate. One end of the“tabbed” number of critical structural engineer-  
Leahy,principal and executive director of treads are supported by“mail box slots” ing calculations on the glass staircase,  
the architectural firm Perkins Eastman, in the middle wall.  
turned to glass to meet those needs. The largest and most complex sec- tance of the annealed treads met spe-  
The OCC now boasts an all-glass tion of the staircase is the central wall, cific ASTM requirements.  
including tests to verify if the resis-  
structural staircase made from Walker which measures 115 by 175 inches  
The staircase also had to meet New  
Textures anti-slip 12-mm Starphire and uses 4-ply ½-inch-thick Starphire York City building performance code  
glass, which was fabricated by AG- heat-treated, low-iron, clear glass. The regulations, which provided specifica-  
NORA. The anti-slip pattern is ac- central wall alone weighs 2,500 pounds. tions on aspects such as the height of  
id-etched into the surface, making it  
The thickness and weight of the glass the glass balustrades and the distance  
more durable compared to other pat- were critical. All vertical load-bearing between the handrails and treads.  
30  
USGlass, Metal & Glazing | March 2017  
www.usglassmag.com  
PUSH  
TO OPEN  
PUSH  
TO OPEN  
Low-energy,  
Hands-free  
Compliance.  
TOPU  
O
S
P
HEN  
Christopher Newport University  
added a circular glass floor system  
to its Student Success Center using  
TGP’s Fireframes ClearFloor fire-rated  
glass floor system with Pilkington’s  
Pyrostop fire-rated glass.  
PUSH  
TO  
OPEN  
SDC’s NEW  
Auto EntryControlTM  
Swinging Door Operator  
provides hands-free,  
low-power point of entry  
door control to help meet  
all US and Canadian  
ADA requirements for  
door installations in  
PUSH  
TO OPEN  
retail storefronts, office  
buildings, campuses and  
healthcare facilities.  
See SDC’s full line of ADA Compliance Solutions at  
http://sdcsecurity.com/ADA-Compliant-Solutions.htm.  
Dimensional Design  
Christopher Newport  
University Student  
A v a i l a b l e a t  
the lock behind the system  
• 800.413.8783 service@sdcsecurity.com  
Success Center  
SDCSecurity.com  
Location: Newport News,Va.  
Architect: Glavé & Holmes Architecture  
Glazier: Walker & Laberge Co. Inc.  
Fabricator: Technical Glass Products  
sion to the optical environment.  
Not only does the glass floor system and contemporary design themes.  
The glass floor system is fire-rated  
fire-rated glass floor system with Pilk- it also acts as a code-approved fire-bar- for two hours and supports loads up  
ington Pyrostop fire-rated glass  
rier.Glavé & HolmesArchitecture set the to 150 pounds per square foot. Its  
lioned window,blending CNU’s classical  
Product: TGP Fireframes ClearFloor provide an architectural statement, but  
The Christopher Newport University 15-foot diameter Fireframes ClearFloor textured, top-surface glass provides  
CNU) Student Success Center in New- System, developed by Technical Glass students and faculty with the neces-  
(
port News, Va., recently underwent a Products (TGP), in a circle to highlight sary traction to walk across its surface  
glassy renovation.Upon entering,a cir- the building’s crowning dome.It features without slipping. It also incorporates  
cular glass floor system draws the eyes an outer and inner ring with 12 glass switchable privacy glass on the walk-  
upward to the building’s distinctive sections, and a solid inner “doughnut” able surface.With the flip of an electric  
dome, while transparent glass panels that leads the eye through the fourth switch, it becomes translucent to pro-  
allow light to stream into the building’s floor to the glassy feature. The floor vide privacy when needed. s  
lower levels, adding depth and dimen- system was designed to emulate a mul-  
—Katherine Coig  
www.usglassmag.com  
March 2017 | USGlass, Metal & Glazing  
31  

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