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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Design of Chicago's Initial System of Subways
Author(s): P. F. Girard
Publication: Journal Proceedings
Appears on pages(s): 473-496
Abstract:The Chicago subway design work was started Octo- ber 1938, and at the end of 1940 the tunnel work was 85 percent and the station work 35 percent complete. The entire project is essentially one of tunnel con- struction. Conditions at the start of the project and the design work that was accomplished since that time are described. First a general description of the work and brief review of some of the essential structures. The remainder of the paper describes the structural design of the work, with special emphasis on the concrete design of the different tunnel sections.
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