New Piers for an Old Bridge
Placing new piers under an old superstructure has saved the architecture of the historic Ashley River Bridge in Charleston, S.C. In July 1987, an inspection indicated deterioration and...
Orchestral Maneuvers
Symphony Towers is an H-shaped superstructure that straddles Symphony Hall in downtown San Diego. The $143 million project is a 34-story office building to the south of the hall and a...
Concrete Bridges � State-of-the-Art
The paper reviews the types of concrete bridge decks in most common use today, with particular emphasis on recent developments. Current trends in substructures and foundations are also...
Swiss Cheese Box Girders
Now going up in the French Alps, the Sylans and Glacieres viaducts have decks supported by three-dimensional arrays of concrete trusses. The superstructures look like concrete box girders...
Building the Seven Seas
The Brookfield Zoo's Seven Seas Complex, outside of Chicago, is a combination of the Caribbean and the Pacific Northwest. Completed in May 1987, the Seven Seas Complex consists...
Retrofitting for a New Life in Power
Despite continued growth in energy demands, electric utilities in the U.S. aren't building many new powerplants these days, due to the economic and regulatory roadblocks they...
Bridge Design By 1-2-3
MULTBEAM, a Lotus 1-2-3 template, can be used to analyze simple-span, multigirder steel highway bridge superstructures. Since it was developed for in house use by Sverdrup Corp., this...
Automating Bridge Design
To avoid some of the pitfalls of manual design calculations, Parsons Brinckerhoff Quade & Douglas engineers designing a series of bridges for a $280 million section of the New...
Earthquakes Will Not Damage This Bridge
A California pipeline bridge has been retrofitted with isolation bearings that damp earthquake shocks. The bridge over Southern California's Santa Ana River carries the Upper...
Finite Element Analysis of Structural Details in Large Steel Bridge Superstructures
Various approaches for the finite element modeling of the connection details in large steel bridge superstructures are presented. It is noted that an accurate analysis of these details...
Design and Fabrication of the Guideway Superstructure for the Miami METROMOVER
The guideways for the driverless rubber-tired vehicles are entirely aerial. As a result of severe restrictions on horizontal alignment and pier locations imposed by the downtown Miami...
Jointless Bridge Decks
Deck joints in a bridge are the source of many problems over its lifetime. In time, chances are good the joint will leak, permitting water and salt to leak through. Often this leads to...
Cofferdams Protecting New York Bridges from Ship Collisions
During the past few decades, there have been a number of cases where ships have rammed bridge piers, triggering the superstructure's collapse. The most tragic case was the...
The Engineer: What Role in the Development of Civilization?
Two brilliant social philosophers underscored the crucial role played by the engineer in history. Karl Marx saw society as consisting of a basic structure and a superstructure. The basic...
George Washington Bridge Across the Hudson River at New York, NY
This publication includes selected papers on George Washington Bridge reprinted from The Transactions of American Society of Civil Engineers (Vol, 97, 1933).The titles of papers: General Concept and Development...
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