Bridging Substance with Style
Engineers used an elegant form to come up with a functional solution when designing the new Damen Avenue Arch in Chicago. Two steel ribs, created using heat induction bending, closely...
Holding Court
Contractors had their work cut out for them when structural engineers specified concrete-filled steel tubes for the Thomas F. Eagleton Federal Courthouse's perimeter columns....
Cable Access
By moving the expansion joints off the main, cable-stayed span and creating innovative cable connections and tower configurations, Parsons Brinckerhoff Quade & Douglas Inc. (PB)...
Cap of Concrete
The roof of a new $84 million arena in New Orleans was built using techniques usually seen in tied-arch concrete bridges. The concrete components of the roof carry the large compression...
Suspension Bridges Unplugged
The `coupling effect' between the flexible, suspended superstructure and the very stiff cable anchorage in suspension bridges can produce large motions during strong earthquakes....
Forging Ahead
More than a dozen bridges in the United States have been built using HPS 70W grade steel, which has a yield strength of 485 MPa (70 ksi) but superior toughness compared to conventional...
Covered Bridge Connection (Available in Structural Engineering Special Issue only)
A 145-year-old timber bridge in Downsville, New York, now rests on the longest glue-laminated wood beams ever produced in the United States. Six 53 m (174 ft) long chords were threaded...
Substructures Stack Up (Available in Structural Engineering Special Issue only)
As part of a 1997 research project sponsored by the Texas Department of Transportation and the Federal Highway Administration, the University of Texas at Austin Center for Transportation...
Yesterday's Data�Tomorrow
Before the advent of computer-aided design (CAD) and geographic information systems (GIS), keeping documentation for future usage was no problem. All an engineer had to do was make sure...
Into the Fourth Dimension
A team of contractors designed a pharmaceutical plant entirely in 3-D CAD, then linked the renderings to a cost program and scheduling software, adding a fourth dimension�time�to the process....
Analysis, Design, Construction, and Testing of Deep Foundations
This proceedings,
Structural Engineering in the 21st Century
This proceedings,
Metal Building Systems: A New Look
The use of metal building systems in low-rise, non-residential construction under 150,000 square feet has grown from less than 50 percent in 1986 to almost 70 percent today. Such systems...
Resolution Solutions
Disputes over such issues as change orders, extra work, delays, or defective work are an inescapable part of the construction process. By designing an effective dispute management program...
Dynamic Groundwater Remediation Design with Genetic Algorithms
In groundwater remediation design it has been shown that dynamic policies, in which the pumping strategies may vary throughout the remediation period, can result in more cost-effective...
Sensitivity of Stormwater Conveyance System Cost to Design Recurrence Interval
(No paper) The cost of a piped and/or swaled stormwater system is determined principally by the storm recurrence interval (e.g., 5-year design storm) used to design it. That is, the present...
Environmental Restoration and Management of the Tres Rios Demonstration Constructed Wetland Project: Mosquito Monitoring, Control and Management Efforts
(No paper) The Tres Rios Demonstration Constructed Wetland Project in Phoenix, Arizona, is providing valuable information on the role of constructed wetlands in ecosystem restoration,...
A Leadtime Driven Flood Warning Response Plan Design
(No paper) The paper examines the optimal combination of predictive and detective capabilities in the development of the Wickenburg Flood Response Plan and extrapolates those findings...
City of Sedona Wastewater Reclamation Plant Upgrade: How to Teach an Old Dog New Tricks
(No paper) The City of Sedona's early 1990's wastewater treatment plant was difficult to control, prone to plant upsets, near capacity and often experienced on-site sewage spills. Additionally,...
Sizing Up Seismic Bearings
Today in the U.S., there are two general technologies available to protect new and existing bridges from the damaging effects of earthquakes. One type, seismic isolation bearings, provide...
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