Prestressed Concrete Bridge Construction


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Title: Prestressed Concrete Bridge Construction

Author(s): Ulrich Finsterwalder

Publication: Journal Proceedings

Volume: 62

Issue: 9

Appears on pages(s): 1037-1046

Keywords: bridge, construction, prestressed bridge, stress ribbon method.

Date: 9/1/1965

Since 1950, about 90 prestressed bridges have been built using the free cantilever system of construction. The system is described and several projects discussed. A new concept in prestressed bridge construction, the stress ribbon bridge, is also discussed. This system uses a stress ribbon of concrete hanging in a funicular curve cantilevered from the piers at both ends. The stress ribbon concept is equivalent to the steel suspension bridge for concrete construction. While none have been built to date, several proposed bridges are described.