Video simulation shows new Bay Bridge’s expected response to an earthquake

The expected effects of a major earthquake on the new eastern span of the Bay Bridge, which is under construction, have been explained by Caltrans in a new video simulation.

Construction of the new eastern span between Oakland and Yerba Buena Island, which will consist partly of a self-anchored suspension span and partly of a flat skyway, is expected to be finished by 2014.

The span is being rebuilt to better protect motorists from earthquakes. The western span was retrofitted to improve its performance in earthquakes.

Saturday marks the 20th anniversary of the 1989 Loma Prieta Earthquake, which knocked out a section of the eastern span, leading to the death of one woman.

The new video shows the new bridge rocking and wavering under the effects of an earthquake. It also explains a number of devices that are being incorporated into the bridge’s design to help protect it from earthquakes, such as cable bands, viscous dampers and shear link beams.
 

Bay Area NewsGovernment & PoliticsPoliticsUnder the Dome

If you find our journalism valuable and relevant, please consider joining our Examiner membership program.
Find out more at www.sfexaminer.com/join/

Just Posted

Ali Jamalian, whose life was disrupted in the wake of being charged with possession decades ago, now heads up Sunset Connect, a cannabis manufacturing company. (Kevin N. Hume/The Examiner)
Green Rush: Cannabis equity program elevates unexpected entrepreneurs

‘It’s a form of reparations for those of us who were ruined by cannabis arrest’

The Giants and Dodgers face each other again following a May series the Dodgers swept; Dodgers shortstop Gavin Lux caught stealing by Giants second baseman Donovan Solano at Oracle Park on May 23 is pictured. 
Chris Victorio/
Special to The Examiner
Giants vs. Dodgers: What you need to know before this week’s huge series

By Chris Haft Special to The Examiner That grinding noise you’ll hear… Continue reading

San Francisco supervisors approved zoning changes that will allow a chain grocery store to occupy the bottom floor of the 555 Fulton St. condo building. (Kevin N. Hume/The Examiner)
Trader Joe’s approved for Hayes Valley, bringing long-awaited grocery store

New Seasons Market canceled plans at 555 Fulton St. citing construction delays

Most Read