Design of California's New San Francisco-Oakland Bay Self-Anchored Suspension Bridge
The seismically vulnerable east span of California's San Francisco-Oakland Bay Bridge will be replaced with a dual eastbound and westbound parallel structure 3.6 km long. The Bay Bridge lies between the Hayward and the San Andreas Faults, which can generate magnitude 7.5 and 8.1 M earthquakes, respectively. Performance criteria require that the bridge be operational immediately after a 1,500-year-return-period earthquake from either of these two faults. Four distinct structures will make up the bridge crossing: a low-rise posttensioned concrete box girder near the Oakland shore, a segmental concrete box girder 2.4 km long, a self-anchored suspension signature span, and a posttensioned concrete box girder that connects to the east portal of the Yerba Buena Island tunnel. The single-tower asymmetric self-anchored suspension bridge was selected from a total of four design alternatives that were developed for the signature main span; these included two cable-stayed bridges and two self-anchored suspension bridges (each bridge type included single-tower and dual portal tower alternatives). Each design alternative was evaluated on the basis of its seismic response, construction cost, and aesthetic properties.
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- Record URL:
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Availability:
- Find a library where document is available. Order URL: http://www.trb.org/Main/Public/Blurbs/156132.aspx
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Authors:
- Nader, Marwan
- Manzanarez, Rafael
- Tang, Man-Chung
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Conference:
- 6th International Bridge Engineering Conference: Reliability, Security, and Sustainability in Bridge Engineering
- Location: Boston MA, United States
- Date: 2005-7-17 to 2005-7-20
- Publication Date: 2005
Language
- English
Media Info
- Media Type: Digital/other
- Features: Figures; Photos; References;
- Pagination: pp 319-327
- Monograph Title: 6th International Bridge Engineering Conference, July 17-20, 2005
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Serial:
- Transportation Research Record: Journal of the Transportation Research Board
- Issue Number: CD 11-S
- Publisher: Transportation Research Board
- ISSN: 0361-1981
Subject/Index Terms
- TRT Terms: Aesthetics; Alternatives analysis; Box girders; Bridge design; Costs; Earthquake resistant design; Faults; Posttensioning; Suspension bridges
- Identifier Terms: San Francisco-Oakland Bay Bridge
- Uncontrolled Terms: Self anchored bridges
- Subject Areas: Bridges and other structures; Design; Finance; Highways; I24: Design of Bridges and Retaining Walls;
Filing Info
- Accession Number: 01002449
- Record Type: Publication
- ISBN: 0309093813
- Files: TRIS, TRB
- Created Date: Jul 28 2005 5:30PM