Re-decking a Bridge With Precast Concrete
Re-decking a 1627-ft deck girder bridge on the Pennsylvania Turnpike with precast concrete slabs allowed the bridge to remain partially open to traffice during the entire construction...
Vail Pass Highway�Respecter of Mountain Ecology
Environmental constraints to a large degree controlled both the design and construction of a 14-mi segment of Interstate Highway 70 through Vail Pass in Colorado and necessitated adoption...
Parrotts Ferry Bridge: Pioneer in Lightweight, Pumped Concrete
Spanning the Stanislaus River in Northern California, this bridge includes a 640-ft center span that is the world's longest span in lightweight concrete and the longest bridge...
Part Two: Basics in Failure Analysis of Large Structures
Part two of a article, with part one appearing in May, 1980. Part two begins with microscopic examination which includes the use of scanning and transmission electron microscopes. Covers...
Stub Girders Cut Steel Use
One innovation in steel building construction, now 10 years old, is the steel stub girder floor framing system. By using a girder that is a composite of steel girder, metal deck and lightweight...
Building New Bridges from Old
The Duluth, Missabe and Iron Range Railway Co. needed a new 150-ft (64-m) two-span railroad bridge. Minimum time and low cost were the demands. In response, the designers used steel girders...
The Querverschub of the 2,000-ft Oberkassel Bridge
In 1976 West German bridge engineers undertook the moving of the largest structure ever moved in one piece and in such a short period of time. The Oberkassel Bridge connecting Dusseldorf...
Rio-Niteroi Bridge Features Record Girder Span
The six-lane highway bridge between Rio de Janeiro and Niteroi, Brazil, is 8.25 miles (13.3 km) long. There are 5.5 miles (8.9 km) constructed over the open waters of Guanabara Bay. The...
Falsework Eliminated in Bridge Erection
The U.S. Highway 50 bridge just east of North Vernon, Ind., is one of the first applications in this country of the precast, prestressed concrete box girder design erected without falsework....
Germany Constructs Steel Box Girder Landmark
The designer of a steel hollow box girder bridge in West Germany describes the design process and gives some construction details. Longest possible spans were sought because of environmental...
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