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History in the remaking
Infrastrucure Security 2005
October 2005
Sherif Morcos, Ph.D, P.E.
Seismic analysis and retrofit of historic arch bridges involves a thorough understanding of their structural behavior.
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Seismic Bridges
Roads & Bridges
May 2005
Arthur Schurr, Contributing Author
California installs an aggressive seismic retrofit effort
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Trembling dice
Roads & Bridges
May 2004
Allen Zeyher, Associate Editor
REDARS (for Risks from Earthquake DAmage to Roadway Systems) is software being designed to offer seismic risk analysis.
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Suspending the "Big One"
Roads & Bridges
May 2004
Semyon Treyger, P.E., S.E., Michael H. Jones, P.E., S.E., and Greg Orsolini, P.E., S.E.
The “big one” could be capable of releasing as much as 16 times more energy than a major earthquake on the San Andreas Fault.
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The Cape's Crusader
Roads & Bridges
May 2003
Steven T. Hague, P.E., S.E., and Shyam Gupta, P.E., Contributing Authors
By the end of this year, southeast Missouri will be the home of the newest cable-stayed bridge in the U.S. and the longest cable-stayed span over the Mississippi River, the 3,956-ft-long Bill E. Emerson Memorial Bridge. This is not, however, simply another cable-stayed bridge.
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Time to Wrap
Roads & Bridges
May 2003
David White, P.E., and Scott Isaac, Contributing Authors
Twenty-five deteriorated bridges along a 5-mile corridor of I-80 in Salt Lake City were in need of major repair. None of the bridges met current seismic design standards. Ultimately, it was decided to use simple, low-cost techniques, including carbon fiber reinforced polymer (CFRP) fabrics and other structural repairs that could reduce the severity of damage from an earthquake.
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San Francisco area bridges planned for retrofit
Roads & Bridges
August 1996
David Banasiak
Since its completion the Bay Bridge has existed in the shadow of its famous
neighbor the Golden Gate Bridge; however, in 1989 it gained the public's
attention.
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Earthquake engineering isn't just for California any more
Roads & Bridges
August 1996
Paul Muccino, P.E.
With advanced 3-D computer analyses and modelling, the New York State Thruway Authority is bracing the landmark Tappan Zee Bridge for a seismic shock that hopefully will never come
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Designed for seismic stability
Roads & Bridges
August 1996
David Banasiak
Caltrans implements a pile-driving test program to study foundation systems for reconstruction of the Ip;880 Cypress Freeway in the San Francisco Bay area
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Quake-resistant beauty
Roads & Bridges
August 1996
Interchange reconstruction project to alleviate traffic congestion, guard against earthquakes, while ensuring an aesthetically pleasing structure in Santa Barbara, Calif.
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Bend but don't break
Roads & Bridges
August 1996
A unique 'multidisciplinary approach' is used to secure Portland's Marquam Bridge against the onslaught of a design maximum expected earthquake
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