Innovative Design for the SFOBB I-80 Yerba Buena Island WB Ramps
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Bibliographic Details
| Author(s): |
Hohsing Lee
(Vice President, AECOM, Sacramento, CA, USA)
Eric Cordoba (Deputy Director, SFCTA, San Francisco, CA, USA) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Congress: Challenges in Design and Construction of an Innovative and Sustainable Built Environment, Stockholm, Sweden, 21-23 September 2016 | ||||
| Published in: | IABSE Congress Stockholm, 2016 | ||||
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| Page(s): | 2228-2235 | ||||
| Total no. of pages: | 8 | ||||
| Year: | 2016 | ||||
| DOI: | 10.2749/stockholm.2016.2227 | ||||
| Abstract: |
The San Francisco County Transportation Authority retained AECOM for the design of the new westbound ramps providing access between the new east-span of San Francisco-Oakland Bay Bridge and Yerba Buena Island. The purpose of the project is to improve mobility, safety, and access by replacing two westbound existing ramps on I-80 constructed in the 1930s. The new ramps will provide a significant improvement geometrically and operationally over the current ramps, and will include bridge structures that complement the SFOBB architecture. The project was cleared under an EIR/EIS prepared by AECOM. The construction contract of the project was awarded in late 2013, and construction completion is targeted for late 2016. This paper discusses a number of innovative design solutions to address the project challenges associated with the site conditions, environmental restrictions, geotechnical challenges, and a high level of seismicity. |
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| Keywords: |
seismic post-tensioning aesthetic steel-box SFOBB concrete-box GFRC
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