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lightfair international - Illuminating Engineering Society

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The Guggenheim Museum Bilbao is the keystone of a decade of<br />

urban development that includes a new subway, bridges, and<br />

performing arts center. As seen from the outside, it’s not hard to see why<br />

Philip Johnson called the museum ‘the greatest building of our time.’<br />

of choices available in U.S. 120 and 12 V lamps provided the<br />

flexibility that was needed. In addition, the advantage of selecting<br />

from numerous lamp choices for lighting specific art conditions<br />

minimizes the use of light blocking screens and therefore<br />

conserves energy. Three lamp types were selected to meet<br />

the demanding criteria and custom fixtures were then<br />

designed to take full advantage of each lamp’s characteristics.<br />

For galleries with lower ceilings, a small fixture was developed<br />

for the PAR36 12 V lamp or the 111 mm aluminum<br />

reflector lamp. These lamps offer excellent color rendition in a<br />

good assortment of beamspreads.<br />

The workhorse in the tall galleries is GE’s Q250 W, 120 V<br />

halogen PAR38 lamp with extra long lamp life. A special fixture<br />

with a 220–120 V transformer was developed to accommodate<br />

this unique lamp. The same fixture is used for object lighting<br />

in the galleries with medium height ceilings.<br />

For the tallest spaces another fixture was developed for the<br />

12 V PAR56 lamp. This capped filament lamp is superior to the<br />

European line voltage version because it has excellent beam<br />

control, lower glare, and a good choice of wattages and beamspreads.<br />

A prime design consideration of this fixture’s clamping<br />

system was the requirement to install the heavy objects by slipping<br />

the clamps over the power-bars without fixture rotation.<br />

Therein is the need for the square cross-sectional shapes of<br />

power-bar and the clamps.<br />

In the central atrium, the same PAR56 fixture delivers the<br />

powerful, narrow beam intensity necessary to highlight art<br />

sculpture and architectural features while providing exceptional<br />

glare control. To balance the brightness of the skylight wells,<br />

uplights are installed to illuminate the flowing white plaster<br />

curves of the upper atrium. Metal halide and quartz uplights<br />

are concealed on top of the tower elements and clamped onto<br />

the upper level catwalks and structural nodes.<br />

All three fixtures were designed with independent, lockable<br />

rotation of the lamp and lens accessory assembly without altering<br />

focusing or aiming alignment—an essential feature to<br />

reduce maintenance time and maintain aesthetic integrity.<br />

They also employ a coiled cord and plug, special clamp, and<br />

safety cable for attachment to the power-bars.<br />

Icing on the Cake<br />

ERCO Lighting, a well-known European manufacturing<br />

company, was ultimately selected to manufacture the 3000+<br />

custom-made object luminaires. After exhaustive reviews of<br />

shop drawings and several rounds of prototypes, full-size partial-Gallery<br />

mockups were constructed near the architects’<br />

office in Los Angeles. Approval for production on the customfixtures<br />

was then released.<br />

To round out the bag of lighting tricks, custom simple<br />

shaped quartz wallwashers and<br />

indirect pendants were developed<br />

and manufactured by<br />

Odelux, a Spanish manufacturer,<br />

and used in the Galleries to<br />

provide a soft, 2:1 uniform<br />

wash of ambient light on the art<br />

walls. All the special fixtures<br />

satisfy functional, programmatic<br />

needs with a neutral appearance<br />

that does not compete<br />

with the sculptural lines of the<br />

galleries, just as Gehry envisioned them.<br />

As a measure to conserve energy and lamp life, the entire<br />

building lighting, motorized shades, and emergency system is<br />

computer controlled by three linked Lutron 6000 series dimming<br />

control systems.<br />

Gehry does not prefer direct illumination on the exterior<br />

facades of his buildings. In this museum the exception is the<br />

uplighting of the Spanish limestone wall behind the polished<br />

stainless steel letters of the main entry sign.<br />

The building’s internal lighting emanates through the glazed<br />

canyons and crevices of the outer envelope. The warm glow of<br />

light is inter-reflected between the titanium, white plaster, and<br />

Spanish limestone cladding. As night sets in, the museum redefines<br />

itself with every changing cloud and hue in the sunset sky<br />

and becomes another elegant expression of this <strong>international</strong><br />

landmark on the banks of the Nervion River.<br />

On the east end of the building Gehry incorporated a tower<br />

which is solely a sculptural element. After experimenting with<br />

20–25 models, he settled on an open steelwork structure clad<br />

with Spanish limestone. The stone cladding is bolted to the<br />

steel structure arranged in a pattern with small slits between<br />

the panels rather than mortar joints. This detail creates glimmers<br />

of light that is visible both day and night. High wattage<br />

metal halide fixtures are mounted on the structure of the tower<br />

and provide internal direct and indirect illumination.<br />

The success of the Guggenheim Museum Bilbao can be measured<br />

by the pilgrimage of art aficionados to the once little<br />

known city in the Basque region. Today the the Guggenheim<br />

Museum, the city of Bilbao, and Frank Gehry are household<br />

names. Gehry achieved his mission “on time and on budget,”<br />

and in so doing he also created marvelous spaces filled with<br />

glowing and living light that provide a memorable experience<br />

to the visitors who make the journey there.<br />

For the designers at Lam Partners, Inc. it was a once in a lifetime<br />

opportunity to participate in the making of this architectural<br />

masterpiece.<br />

The designers: Enrique A. Rojas,<br />

Senior Associate at Lam Partners<br />

Inc., has 25 years of experience in<br />

architecture, interior design, and<br />

lighting design for commercial,<br />

institutional, hospitality and<br />

urban projects of various uses and<br />

scope. As project manager of the<br />

Guggenheim Museum Bilbao, Rojas was recently presented with the 1997 GE<br />

Edison “Award of Excellence” for lighting of the museum. Most recently Rojas<br />

was presented with the IIDA Edwin F. Guth Memorial Award of Excellence for<br />

lighting design of the Chan Centre for the Performing Arts in Vancouver, B.C.<br />

Paul A. Zaferiou is a Principal at Lam Partners Inc. In his 14 years of lighting<br />

consulting experience with Lam Partners Inc., he has managed scores of projects<br />

representing a wide range of types and geographic locations. His professional<br />

experience is complemented by his teaching and authoring of articles on<br />

architectural lighting design. As Principal-in-Charge of the Guggenheim<br />

Museum Bilbao project, Paul was recently presented with the 1997 GE Edison<br />

“Award of Excellence” for lighting of the museum.<br />

For the tall galleries, a special fixture<br />

was developed to accommodate the<br />

GE Q250 W, 120 V halogen PAR38<br />

lamp with extra long life.<br />

The filament capped 12 V PAR56<br />

lamp used in the tallest spaces was<br />

superior to the European line voltage<br />

version due to its excellent beam<br />

control, lower glare, and variety<br />

of wattages and beam spreads.<br />

44 LD+A/April 1999

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