Terminal A Logan International Airport
Security measures top the list of priorities in airport construction projects these days, but the new Delta Air Lines’ Terminal A at Logan International Airport in Boston also successfully addressed aesthetic and environmental concerns. Completed in September 2005 at a cost of $492 million, the 362,000 square-foot main terminal and 284,000 square-foot satellite concourse is the world’s first air facility to earn Leadership in Energy and Environmental Design certification from the U.S. Green Building Council, a voluntary standard for creating high-performance, sustainable buildings. The project “represented a wonderful opportunity to design a world-class, highly functional new facility,” says D. Kent Turner, senior principal at design firm Hellmuth, Obata + Kassabaum Inc. in New York.
HOK incorporated numerous technologies and methods to maximize efficiency and minimize environmental effects. The 87,000-square-foot curtain wall has both unitized- and stick-framed components, the glass manufactured by Viracon of Owatonna, Minn., and installed by Harmon Inc. of Takwila, Wash., under contract to Crown Corr Inc. of Gary, Ind. The VE3-2M insulating vision glass consisted of 1⁄4-inch gray tinted heat-strengthened exterior glass with 2M coating on the number-two surface, 1⁄2-inch air space, 3⁄16-inch clear glass, 0.063-inch clear polyvinyl butyral interior and 3⁄16-inch clear laminated interior glass. The glass was placed strategically to maximize natural light and require fewer light fixtures.
Focal points in both the terminal and satellite are triangular-shaped glass nodes that tilt outward; the terminal node is 173 feet by 23 feet; the satellite, 150 feet by 46 feet. Both nodes required 96 different glass and panel shapes supported by custom steel trusses designed and installed by Crown Corr. Their installation tested the mettle of both Harmon and Crown Corr. “They’re custom-sized and shaped, out of plumb and out of square by design, and were one of the more challenging aspects of the project,” says John Pickford, executive vice president at Crown Corr.