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The Viable Alternative
The Benicia-Martinez Bridge is a high-level, welded deck truss bridge that carries Interstate 680 over the eastern end of the Carquinez Strait near San Francisco. To bring the bridge into...

Golden Gate Update
A comprehensive seismic retrofit is under way to ensure that San Francisco's 2.74-km-long Golden Gate Bridge will remain in operation even after a maximum credible earthquake...

Chi-Chi, Taiwan, Earthquake of September 21, 1999
Lifeline Performance
Prepared by the Technical Council on Lifeline Earthquake Engineering of ASCE. On September 21, 1999, central Taiwan was struck by a devastating earthquake...

Emerging Materials for Civil Infrastructure
State of the Art
Prepared by the Emerging Materials Committee of the Materials Division of ASCE. This report presents a review of the state of the art on emerging materials...

Phase II Evaluation Findings
The Segmental Concrete Channel Bridge System
Prepared by the Highway Innovative Technology Evaluation Center (HITEC), a CERF Innovation Center. This report represents the second component of the...

Calendar: Bridges 2001 Calendar
Featured bridges are: Whipple Bowstring Bridge (OH); Alsea Bay (Waldport) Bridge (OR); Brush Creek Bridge (KS); Whipple Through Truss (OH); Simon Kenton Bridge (OH); Rogue River (Rock...

Battling Concrete Corrosion
For decades engineers have fought concrete corrosion, but few methods have offered a long-term solution�until now. Electrochemical techniques such as electrochemical chloride extraction...

Best of Both Worlds
All around the Pacific Rim structural engineers are experimenting with concrete filled steel tubes as structural elements. The concrete filled tubes take advantage of the best properties...

Rebuilding a Railroad Bridge
The Peck Movable Bridge and Bridgeport Viaduct is a four-track crossing in Connecticut that serves three rail lines. The 1904 bridge had deteriorated, causing a kink that forced trains...

Concrete Connections
A new application of polymer composites involves the repair and rehabilitation of reinforced concrete frame connections. Test results from a pilot study conducted at the California State...

Bridging Substance with Style
Engineers used an elegant form to come up with a functional solution when designing the new Damen Avenue Arch in Chicago. Two steel ribs, created using heat induction bending, closely...

Holding Court
Contractors had their work cut out for them when structural engineers specified concrete-filled steel tubes for the Thomas F. Eagleton Federal Courthouse's perimeter columns....

Cable Access
By moving the expansion joints off the main, cable-stayed span and creating innovative cable connections and tower configurations, Parsons Brinckerhoff Quade & Douglas Inc. (PB)...

Walled In (Available in Geoenvironmental Special Issue only)
Of the many challenging aspects of the $10.8 billion, 7.5 mi long Central Artery Project in Boston, the construction of soldier pile, tremie concrete (SPTC) walls under the existing elevated...

Cap of Concrete
The roof of a new $84 million arena in New Orleans was built using techniques usually seen in tied-arch concrete bridges. The concrete components of the roof carry the large compression...

Suspension Bridges Unplugged
The `coupling effect' between the flexible, suspended superstructure and the very stiff cable anchorage in suspension bridges can produce large motions during strong earthquakes....

Forging Ahead
More than a dozen bridges in the United States have been built using HPS 70W grade steel, which has a yield strength of 485 MPa (70 ksi) but superior toughness compared to conventional...

High Rise Express (Available in Structural Engineering Special Issue only)
A new column system developed by the Canam Manac Group in Montreal offers the expediency of steel construction with the economy of concrete. The system is made entirely of lightweight...

Covered Bridge Connection (Available in Structural Engineering Special Issue only)
A 145-year-old timber bridge in Downsville, New York, now rests on the longest glue-laminated wood beams ever produced in the United States. Six 53 m (174 ft) long chords were threaded...

Substructures Stack Up (Available in Structural Engineering Special Issue only)
As part of a 1997 research project sponsored by the Texas Department of Transportation and the Federal Highway Administration, the University of Texas at Austin Center for Transportation...

 

 

 

 

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