Evolution of Composite Floor Systems in the United States
Composite floor systems, which combine structural steel beams with a cast-in-place concrete slab, have grown in popularity in the U.S. during the past 40 years. In most early applications,...
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 Long Arch
The proposed long-arch method of constructing large underground chambers is a novel variation of well-established cellular construction methods. But each cell is arch-shaped and is independent...
Pushing Back
(Available on in special edition) The design for the $3.5-million Cameron Run tunnel rehabilitation project involved a tricky and relatively unproven method of pushing corrugated steel...
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...
Under the Microscope
Forensic engineering is typically more complex than engineering design because it requires the integration of specialized knowledge of materials science, structural analysis and design,...
Sharp Curves
In Madison, Mississippi, just north of Jackson on Interstate 55, a diamond interchange with State Route 463 has become a bottleneck for commuters and local motorists. But the typical solution�a...
Competitive Edge
A new design system called the simplified economical bridge design (SEBD) makes steel cost-competitive with concrete for short- and medium-span bridges for the first time. In fact, a comparative...
Terminal Island Turnaround
The Pier T marine terminal at the Port of Long Beach is a new 375-acre (152 ha) container terminal being developed at the former Long Beach Naval Station and Naval Shipyard. The $525-million...
A Natural Approach
Before the Comprehensive Everglades Restoration Plan began, the Florida legislature established the Everglades Construction Project (ECP), a $708-million, 10-year program now being implemented...
Marketing Your Web Site
Most companies in the engineering and construction industry have had their own Web sites for some time. But experts warn that generating traffic from potential clients, job seekers and...
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...
25 Technologies to Watch
While much hype exists over the concept of e-commerce, an expert in design and construction information technologies points out that there are many other technologies in the developmental...
Extended Life Span
The Harlem River Lift Span�part of New York City's Triborough Bridge System�was the largest vertical span in the country at the time of its construction in 1936. The lift...
High-Tech Inspection
The Federal Highway Administration's National Bridge Inspection Program requires the states to report the condition of its bridges as determined by visual inspection, and...
Dual Benefits
When the Port of Houston needed to be dredged to accommodate larger commercial vessels, engineers decided to put the dredged material to use to create wetlands and islands that will serve...
Native American Imprint
Following a design phase of more than four years, construction has finally begun on the Smithsonian Institution's National Museum of the American Indian, which will occupy...
Stabilizing a Crater Rim
A geocell and geogrid reinforced soil slope concept was selected to stabilize approximately 120 m of eroding and unstable portions of the crater rim at the National Memorial Cemetery of...
Liner Lessons
The County Sanitation Districts of Los Angeles County comprise 25 independent special districts that cover a service area of approximately 770 sq mi (1,990 km�). Since the early 1990s...
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