Ancient Concept, Modern Context
For several centuries, Bibliotheca Alexandrina was the cultural center of the Western world. It was built by the heirs of Alexander the Great some 2,400 years ago and burned, some say...
Ties to Excellence
The new Exhibition Center London (ExCeL) on the north side of the Royal Victoria Dock in London is just one of many structures altering the Docklands' landscape. The roof...
Delicate Procedure
In 1997 the University of Maryland Medical System (UMMS), located in downtown Baltimore, began addressing a need for expanded health care facilities within the city. But the existing facilities...
Bell's Bridge Rehabilitation
Bell's Bridge carries Tidewater Drive, a major urban arterial in the City of Norfolk, Virginia, over Wayne Creek, a tributary of the Lafayette River. During a routine inspection in 1995,...
Smart Online Structural Monitoring and Diagnosis
(abstract only) This paper describes the observation matrix as innovative monitoring and diagnosis: (1) The matrix elements of the observation matrix multiplied by its transposed serve...
Cross-Frame and Diaphragm Behavior in Skewed Bridges
The author examines the existing specifications and guidance for bracing provisions by AASHTO, AISC, and TxDot, and the need for developing bracing requirements....
Maintenance of Diaphragm-Girder Connections
Fatigue cracking at diaphragm-girder connections and at similar connections of cross-frames and floorbeams have been common in steel highway bridges for the past 20 or 30 years. Fatigue...
Blast Mitigation Research and Technology Transfer
Terrorists continue to use bombs as a weapon of choice. Recent bombings targeted against the United States, such as the World Trade Center, Murrah Federal Building, Khobar Towers, and...
High Resolution Pressure Measurements on Roofs of Low Buildings
Describing an instrumented module which was built with extremely high pressure tap density to use as a component of a roof or wall....
Update of Serviceability Design Considerations for Low-Rise Steel Buildings
In 1990, the American Institute of Steel Construction published Servicability Design Considerations for Low-Rise Buildings by James M. Fisher and Michael A. West. This document was published...
Seismic Analysis and Retrofit of the Amoskeag Bridges
In 1983 AASHTO first offered the design guide for seismic analysis of bridges, which ultimately became a permanent part of the AASHTO Bridge Design Manual in 1990. Prior to this time,...
Returning to the Source
One hundred years ago, Las Vegas was a dry, dusty dot on the map with a population of only 100. The city grew up to become perhaps the gambling capital of the world, and more recently...
Small Firms, Big Dig
The local knowledge and technical expertise found in small engineering firms are often critical to the success of large projects. As one of the most comprehensive design and construction...
Mile High Design
Denver's hybrid steel and concrete Invesco Field at Mile High, the National Football League's first design/build stadium, is on schedule to replace the existing...
High-Tech Isolation
In the fast-paced world of telecommunications, the time to market is often the deciding factor in the success of an enterprise. With that thought in mind, AboveNet Communications, Inc.,...
The Pentagon Project
The renovation of the Pentagon, now under way, is one of the most ambitious, complex, and challenging construction undertakings in contemporary history. It entails the equivalent of demolishing...
Turning with the Wind
A 125-m high tower built at the site of the Glasgow Science Center in the United Kingdom required some innovative design methods. To reduce the aerodynamic effects imposed on the slender...
Replacement Strategy
Water Works II, a $275-million water treatment plant currently under construction in Detroit, is redefining the way that such projects are let and built. In 1980 the city initiated a program...
Great Excavations
By any definition, the scale of the underground caverns being excavated near Geneva at the particle physics center run by the Conseil Europ�en pour la Recherche Nucl�aire (CERN)�the European...
Concrete Delivers
The latest addition to the skyline of Shanghai, China, is a strikingly slender all-concrete 62-story office tower. It is the city's tallest all-concrete building, achieving...
Return to search