Degenkolb led the seismic upgrade of a multi-story office tower.
Caltrans District 4 Headquarters Seismic Upgrade
As prime consultant, Degenkolb designed the seismic upgrade of a 15-story, 600,000 square-foot office building in downtown Oakland. The building has a lateral force resisting system consisting of steel moment resisting frames similar to those that were heavily damaged in the 1994 Northridge earthquake. Design method combines connection retrofits with the addition of viscous damping elements. Nonlinear time history analyses of the retrofitted building model was used to verify that the design met the State of California’s design requirements. The innovative project is a 2010 ACEC California Merit Award Winner, 2011 ATC-SEI Top Seismic Project Awards, and 2011 SEAONC Engineering Excellence- Merit Award.
Features:
- 15-story office tower
- 750,000 square feet
- Seismic retrofit incorporated combination of viscous dampers and connection retrofits
- 2010 ACEC California Merit Award Winner; 2011 ATC-SEI Top Seismic Project Awards; 2011 SEAONC Engineering Excellence- Merit Award.
- Structural System: Lateral force resisting system consisting of steel moment resisting frames.
Benefits:
- Designed for improved performance and post-earthquake functionality
- Acted as Prime Design Professional
- Construction work performed in occupied building per full phasing plan prepared by Design Team to minimize disruption to building occupants.
Project Stats
Client
Department of General Services,
Square Footage
750,000
Construction Cost
$47 million
Completion Date
2012
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Project Team
Jim Malley
Senior Principal
I am a third-generation San Franciscan and have never lived more than ...
Jim Malley
Senior Principal
San Francisco
- (415) 354-6419
- malley@degenkolb.com
Education
B.S., Civil Engineering University of California, Berkeley, 1980
M.Eng., Structural Engineering University of California, Berkeley, 1983
Registration
CA, Structural Engineer, License No. 3044
CA, Civil Engineer, License No. 38451
OR, Professional Engineer, Civil/Structural, License No. 64360
NV, Professional Engineer Civil/Structural, License No. 017640
WA, Professional Engineer, License No. 55143
Why did you go into structural engineering?
When I entered college, I originally was in the mechanical engineering department at Berkeley, interested in the sub-discipline of petroleum engineering (mostly because this was a few years after the energy crisis of the mid 1970’s). After learning more about what mechanical would entail, and realizing that this wasn’t going to be a good fit for my interests, I switched into Civil Engineering. Once I began taking classes in the various disciplines of Civil, I determined that structural would be the best for me, especially living in California with our exposure to earthquakes.
Little Known Fact
I am a 3rd generation San Franciscan and have never lived more than 20 miles from the City. I’ve also coached little league baseball for 30 years, which is finally coming to an end.
Question of the Day
What’s your favorite team?
SF Giants.
