15th Triennial International Conference
Performance Based Seismic Retrofit Solutions for Wharf Preservation
Publication: Ports 2019: Port Engineering
ABSTRACT
Throughout the 1920s and ‘30s, numerous voter-approved bonds were used to fund construction of ports in the western United States. These port facilities are approaching their 100-year service life. Without major retrofitting, these aging structures fail to meet the seismic safety requirements in the current design codes. The owners have a choice to seismically retrofit the facility or build a new one. Retrofits generally have advantages of lower costs and less downtime of the facility during construction. This paper presents a novel approach and innovative engineering solutions in seismic retrofit of the former Port of Oakland’s 9th Avenue Terminal, a large wharf, built in the 1930s, at the Brooklyn Basin in Oakland, California. The paper will discuss how the design team integrated site-specific seismic hazard assessment and performance based seismic retrofit design criteria with a nonlinear pushover analysis to meet the required seismic performance requirements in a cost-effective, constructible, and reliable manner.
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ACKNOWLEDGEMENTS
Signature Development Group manages the real estate development at the Brooklyn Basin, Oakland, CA. Simpson Gumpertz & Heger is the structural engineer for the seismic retrofit of the 9th Avenue Terminal wharf structure in this project. ENGEO is the geotechnical engineer.
REFERENCES
ASCE Manual of Practice 130 “Waterfront Facilities Inspection and Assessment”, 2015
ASCE Standard 7-10, Minimum Design Loads for Buildings and Other Structures, 2010
ASCE Standard 61–14, Seismic Design of Piers and Wharves, 2014
Bray and Travasarou, Optimal Ground Motion Intensity Measures for Assessments of Seismic Slope Displacements, 2003 Pacific Conference on Earthquake Engineering, February 2003
California Building Code (CBC), 2013 Edition, 2013
Caltrans, Guideline on Foundation Loading and Deformation Due to Liquefaction Induced Lateral Spreading, 2012
ENGEO, Existing Geotechnical Conditions and Seismic Slope Stability, Brooklyn Basin Phase 1, Oakland, California. 2015
Federal Emergency Management Agency, FEMA-356 Prestandard and Commentary for the Seismic Rehabilitation of Buildings, 2000
Martin and Qui, Effects of Liquefaction on Vulnerability Assessments. NCEER Highway Project on Seismic Vulnerability of New and Existing Highway Construction, Year One Research Talks, Technical Research Papers, 1994
National Cooperative Highway Research Program, NCHRP Report 611, Seismic Analysis and Design of Retaining Walls, Buried Structures, Slopes and Embankments, 2008
Working Group on California Earthquake Probabilities (WGCEP), The Uniform California Earthquake Rupture Forecast (UCERF 2), 2007
Information & Authors
Information
Published In
Ports 2019: Port Engineering
Pages: 358 - 368
Editors: Pooja Jain, Moffatt & Nichol and William S. Stahlman III, America's Central Port
ISBN (Online): 978-0-7844-8261-2
Copyright
© 2019 American Society of Civil Engineers.
History
Published online: Sep 12, 2019
Published in print: Sep 12, 2019
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