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Scour Monitoring at Johns Pass and Nassau Sound, Florida
Scour monitoring instruments were installed on two bridges spanning tidal inlets in Florida as part of a research project to develop scour instrumentation. Previous prototype installations...

Best of Both Worlds
All around the Pacific Rim structural engineers are experimenting with concrete filled steel tubes as structural elements. The concrete filled tubes take advantage of the best properties...

Bangkok Blockbuster
When completed, the 54-kilometer Bang Na-Bang Pli-Bang Pakong Expressway in Bangkok, Thailand, will be the longest elevated expressway in the world. The precast segmental method is being...

Risky Business
Labor, clients, project conditions and information flow are all potential risks that small design firms face when deciding to agree to a fixed price. If you're in charge of...

Isolating the Arts
The LG Kangnam Building in Seoul, Korea, is a multi-use, 140,000 sq m project, consisting of a 40 story, 183 m tall office tower, an adjacent 9-story acoustically base-isolated performing...

Casting Their 'Net
Small engineering firms are exploring new markets, winning clients and bringing in fresh talent�all through their company web pages. Executives from small firms around the country talk...

Monitoring Construction Vibrations (Available in Geoenvironmental Special Issue only)
A review of procedures, criteria and equipment used to protect buildings and other structures from construction generated vibrations, the article begins by describing the importance of...

Betting on the Baseline (Available in Geoenvironmental Special Issue only)
In construction contracts, new deductive differing site conditions (DSC) clauses provide for credits to owners when contractors encounter better-than-anticipated subsurface conditions....

Walled In (Available in Geoenvironmental Special Issue only)
Of the many challenging aspects of the $10.8 billion, 7.5 mi long Central Artery Project in Boston, the construction of soldier pile, tremie concrete (SPTC) walls under the existing elevated...

Through Frozen Ground
The most difficult section of the Massachusetts Bay Transportation Authority's (MBTA) Silver Line transit corridor project is approximately 112 m (400 ft) of tunnel below...

Cold Climate Solution
To reduce turbidity in sedimentation-basin discharge, Anchorage, Alaska, is experimenting with constructed wetlands to augment storm-water discharge treatment from several storm-drain...

Remediation Lessons Learned
Within the past few years a large number of environmental remediation projects have been completed that are now in postclosure monitoring. What lessons can be learned from these projects?...

It's All in the Bracing
When the Massachusetts Bay Transportation Authority (MBTA) hired Weidlinger Associates Inc., Cambridge, Mass., to renovate the Aquarium Station stop along the subway system's...

Small Business Bookmarks
A review of websites geared toward small business owners shows a wide array of resources are available with the click of a mouse. Among our top picks are: Small Business Administration,...

High Rise Express (Available in Structural Engineering Special Issue only)
A new column system developed by the Canam Manac Group in Montreal offers the expediency of steel construction with the economy of concrete. The system is made entirely of lightweight...

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...

Hyogoken-Nanbu (Kobe) Earthquake of January 17, 1995
Lifeline Performance
Prepared by the Technical Council on Lifeline Earthquake Engineering of ASCE. On January 17, 1995, the Hyogoken-Nanbu earthquake struck the Kobe, Japan,...

Overcoming Barriers
Lifeline Seismic Improvement Programs
Prepared by the Technical Council on Lifeline Earthquake Engineering of ASCE. This TCLEE Monograph studies seven large lifeline organizations that...

Early Warning System
The Rock Hazard Rating System (RHRS) can help highway owners mitigate the risks of rock slope failure. This system helps owners determine which slopes are most hazardous and should be...

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...

 

 

 

 

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