Mitigation of Void Development under Bridge Approach Slabs Using Rubber Tire Chips
The problem of void development under bridge approach slabs has been correlated to the use of integral abutment bridges (Schaefer and Koch, 1992). This void development then causes settlement...
Tire Shreds as Lightweight Fill for Embankments and Retaining Walls
Use of tire shreds in three highway projects is described. In the first project, tire shreds were used as a compressible inclusion to reduce pressures on a rigid frame bridge. Earth pressures...
Launched Bridges
Bridge Within a Bridge
A multinational consortium retrofitted the Tagus River suspension bridge in Lisbon, Portugal. The retrofit included widening the roadway deck from five to six lanes, installing a railroad...
Shake, Rattle and Hold (Available in Structural Engineering Special Issue Only)
In-situ lateral load tests of two bridge bents were conducted on Interstate 15 in Salt Lake City, Utah, to determine the strength and ductility of an existing concrete bridge and the improvements...
Baseball Caps
The last ten years have been a renaissance for baseball stadium construction�a trend that doesn't look likely to stop just yet�and four of the new parks are on the cutting...
Below Boston's New Bridge
The Charles River Bridge, a 10-lane cable-stayed structure will be the widest cable-stayed bridge in the world. The bridge is 1,460 ft long with a main span between towers of 745 ft. This...
Calendar: Bridges 1999 Calendar
Featured bridges are: Cornish-Windsor Covered Bridge (NH); John A. Roebling Bridge (KY); Bollman Truss Bridge (MD); Eads Bridge (MO); Brooklyn Bridge (NY); Manhattan Bridge (NY); High...
Historic American Covered Bridges
Covered wooden bridges are a visual testament to the American spirit. Originally designed with roof-like covers to protect the exposed wood from the effects of sun and rain, these bridges...
Northumberland's Ice Breaker
Extending more than 12.8 km over treacherous waters, the new Northumberland Strait Crossing had to go a long way to finally join the last separate Canadian province to the mainland. Design...
A Bridge Along the Same Lines
Engineers in Tennessee were recently charged with building a new viaduct in an old profile, while at the same time keeping headroom for the trains and keeping off the neighbors'...
Bulb-Tees Make More Efficient Long-Span Bridges
The bulb-tee girder has helped erect new bridges with fewer I-beams, and is also shown in studies to be a structurally efficient, cost-effective alternative for long-span bridges....
Bridge Bashing
Ships can be dangerous to bridges. Collisions are increasing and costs are considerable. There are ways to reduce the risks, but these cost money, too. A 1993 vessel collision with and...
Catchy Culverts
Franklin County, Ohio, installed box culverts in Norman Ditch to prevent flooding of surrounding homes, streets and sewer lines after heavy storms. The design team, given tight deadlines...
Advances in Structural Optimization
A compilation of twenty papers,
Building to Last
This proceedings,
Bump At the End of the Bridge
Interface bumps between bridge abutments and embankments increase risk and add over $100 million to maintenance expenses every year. New research reveals effective ways to deal with the...
Optimal Fiber Optics
Fiber optics, which played a crucial role in reinventing the telecommunications industry, have historically been noted for their potential in other facets of science and technology. Yet,...
A Signature Bridge for Boston (Available only in Structural Engineering Special Issue)
The first hybrid steel and concrete span in America will debut over the Charles River in Boston, carrying ten lanes of interstate traffic and serving as an elegant capstone to the largest...
Putting the Wraps on Quakes
With bridges deteriorating all over the country at an alarming rate, state DOTs are searching for cost-effective retrofit solutions that will protect our aging bridge inventory from seismic...
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