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|Location||Indianapolis, Indiana map|
|Date||1967 to 1971 timeline|
|Building Type||commercial office building|
|Construction System||steel spanning|
|Notes||Nine buildings connected by tunnels and bridges.|
|Discussion||College Life Insurance Co. Commentary
"The usual specification of in-built expansion options here led to the conception of nine office towers, three of which were completed during the first construction phase. They stand as autonomous bodies in slightly offset alignment, connected via bridges and tunnels. Their deep blue glass faŤades 'lean' against solid-looking concrete slabs containing utility and service rooms."
Peter Gossel and Gabriele Leuthauser. Architecture in the Twentieth Century. p303.
"The company needed office space which could be expanded in reasonably sized increments. A plan was developed for nine separate buildings, eleven stories in height and containing approximately 120,000 square feet each. The first three of these buildings are constructed. They are connected underground by basements and aboveground by bridges. The cores and service areas form two solid walls of each building, allowing the floor space to be free of obstructions.
"The structure is reinforced concrete with flat slab floors supported on a 30 foot by 30 foot grid of columns. The luminous ceiling turns down at the outside wall, allowing daylight to penetrate into the ceiling void and mingle with the fluorescent light."
from Yukio Futagawa, ed. Kevin Roche, John Dinkeloo, and Associates, 1962-1975. p164.
Sources on College Life Insurance Co.
Roger H. Clark and Michael Pause. Precedents in Architecture. New York: Van Nostrand Reinhold, 1985. separated units diagram, p167. Updated edition available at Amazon.com
Yukio Futagawa, ed. Kevin Roche John Dinkeloo and Associates Aetna Life Insurance Computer Building Hartford, Connecticut. 1966 College Life Insurance Headquarters Indianapolis, Indiana. 1967. Tokyo: A.D.A. Edita Tokyo, 1974. xNA737.K46A35 1974. section detail, p47. site plan, p44. plan, p45. discussion, p164.
Photos courtesy of Kevin Roche, John Dinkeloo and Associates. PCD.2285.1013.1265.94. PCD.2285.1013.1265.93. PCD.2285.1013.1265.92. PCD.2285.1013.1265.91.
Kevin Matthews. The Great Buildings Collection on CD-ROM. Artifice, 2001. ISBN 0-9667098-4-5.
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