New River Gorge Bridge: World's Longest Steel Arch
The world's longest steel arch bridge, spanning the New River Gorge Bridge in the south central area of West Virginia, is scheduled to be completed in Sept. 1977. The main...
Bridge Erection by Launching is Fast, Safe, and Efficient
The construction of long prestressed concrete bridges without using formal falsework or self-supporting launching falsework is described. Using the so-called incremental launching method...
Concrete Bridge-Tunnel Has No Deck
Engineers solve the problem of how to economically span a single track railroad without interrupting train traffic. Highway fill was placed over post-tensioned precast concrete arch sections...
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...
The Field Engineer: Political and Legal Scapegoat�
The publicly-employed engineer can be in a vulnerable legal position. A case history is described in which a field engineer was indicted on criminal charges after a bridge collapse (during...
Pasco-Kenneewick Bridge�� The Longest Cable-Stayed Bridge in North America
This 2503-ft long structure, built in an earthquake zone, is only the second of its kind to be constructed in the U.S. It boasts a continuous concrete girder, supported from steel cables...
Railroads, Truss Bridges and the Rise of the Civil Engineer
The huge growth of the railroads during the nineteenth century was the direct result of herculean efforts on the part of civil engineers. Likewise, the development of the civil engineering...
James B. Eads and His St. Louis Bridge
Eads Bridge at St. Louis, a century old engineering achievement, was designed, promoted, and built by an intensely dedicated and self-educated man, James B. Eads. This structure was an...
Philadelphia Bridge Sparked Growth of Prestressed Concrete in the U.S.
Prestressing has been used for centuries. For instance, iron bands were heat-shrunk over built-up wooden wheels to increase their resistance to damage. In 1888, a man named Jackson from...
Why Do Bridges Fail�
From the study of 143 bridge failures that occurred throughout the world from 1847 to 1975, it is found that there are nine categories of failure. The most frequent of these is failure...
George Washington Bridge Redecked with Prefabricated, Prepaved Steel Panels
The Port Authority of New York and New Jersey has embarked on a �37,000,000 project to totally replace the upper roadway of the 46-yr old George Washington Bridge. The scheme, chosen from...
Stability of Structures Under Static and Dynamic Loads
Proceedings of the International Colloqium on Stability of Structures Under Static and Dynamic Loads, held in Washington, D.C., May 17-19, 1977. Sponsored by the National Science Foundation....
Philadelphia-three ages of a city
On these pages are the profiles of the City of Brotherly Love in three eras. First come the founding years, and the story of why, though only half as old as Boston and New York, by 1750...
Kansas City Bank Tower Features Water-Filled Columns, Exposed Spandrels
In this first article in a series on recent innovations in structural steel design, the spotlight is on the 20-story Mercantile Bank Tower in Kansas City. This structure features several...
World's Third Longest Cantilever Bridge
This report includes the planning, design and construction procedure of the world's third longest double deck, cantilever bridge, Osaka Port Bridge, which was completed in...
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...
Steel Stress-Ribbon Concept�� Will It Save Money�
The stress ribbon structure, a fairly new and unusual concept, can be built with central sags of less than 2% of the span length using currently available materials and technology. Possibilities...
Stress Ribbon Bridge in Freiburg, Germany
A three span continuous stress ribbon bridge of 75, 130, and 138 ft, was built in downtown Freiburg, W. Germany, for pedestrian traffic. Structural analysis is similar to that of suspension...
ASCE Tackles Standards
ASCE is sharply expanding its standards activity. Standards committees are at work in the fields of building loads, fire safety of structures, steel box-girder bridges, nuclear power plants...
First Bridge Across the Yukon River
Until recently, the Yukon River was a major obstacle in constructing a roadway to the oil-rich North Slope of Alaska. But on October 10, 1975, that obstacle was hurdled when the first...
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