Life-Cycle Design, Assessment, and Maintenance of Structures and Infrastructure Systems
Prepared on behalf of the Task Group 1 on Life-Cycle Performance of Structural Systems Under Uncertainty of the Technical Council on Life-Cycle Performance, Safety, Reliability and Risk of Structural Systems...

A Landmark's Legacy

Crossing the Forth
Scotland’s Queensferry Crossing spans the Firth of Forth, connecting Edinburgh and the Kingdom of Fife. Built at a cost of $1.89 billion in six and a half years, the 1.6 mi long cable-stayed bridge, with...

The Transcona Grain Elevator Failure Revisited: A Modern Perspective a Century Later
More than a century ago, a seminal event in the then world of foundation engineering took place in Winnipeg, Manitoba, Canada, when the mat-foundation-supported Transcona Grain Elevator underwent catastrophic...

Forever Frozen? Future Challenges for Ground
On a typical day, in a typical town, in a city almost anywhere in North America, roads and highways are filled with people going about their everyday business — commuting to work, delivering goods and...

A Combo Foundation Does the Job: Piled-Raft Foundation Design for a Supertall Skyscraper
Lotte World Tower is a 123-story, 555-m supertall skyscraper with a 6-level basement for retail and car parking located at Jamsil-dong in Seoul, South Korea. (Editor’s Note: For additional information,...

We Struck Water! Discovery of Artesian Groundwater Solves A 50-Year-Old Landslide Puzzle
Some unstable slopes fail dramatically, but most can be characterized by gradual, if not monotonously slow, movements. Yet these latter situations can pose a dilemma when a temporary repair is much simpler...

Failures Inspire Progress: Protecting Sensitive Buildings from Tunnelling
Tunnelling in urban areas is always a challenge, and it’s especially so when construction is proximate to densely populated districts. Such was the case on January 25, 2005, when a 10-m length of a Barcelona...

A Faster, Cheaper, Better Way to Build a Wall: How a Simple Highway Widening Led to a Patent
When first opened in 1940, and as segments were later added to it, the Pennsylvania Turnpike (Turnpike) was principally a four-lane highway with two eastbound and two westbound lanes. As traffic volume...

Rapid Recovery
In May 2017, the California Department of Transportation had to contend with a massive landslide that closed a section of the iconic State Route 1 through central California’s scenic coastal region of...

Robotic System Creates Affordable, Innovative Concrete Formwork
A team based in Denmark has created a robotic system capable of economically and quickly carving formwork for unusually shaped concrete structures....

Teaching Cars to Drive
The Michigan-based American Center for Mobility is located at a former World War II bomber factory, later an auto plant, that was environmentally challenged after decades of industrial use. Though the...

Tied Together
The replacement of the John Greenleaf Whittier Memorial Bridge was one of the signature projects of the Massachusetts Department of Transportation's $3-billion accelerated bridge construction program....

Design Details (part of "Uplifted")
In all projects, the interconnectivity of each component is important. A movable bridge is an especially complicated structure that is exposed to an array of dynamic movements and transient loading conditions...

Training for Disaster
The structural complexes used to train first responders must accommodate a wide range of theoretical and practical learning. From classroom spaces to built-to-burn assemblies to buildings within buildings,...

Turn for The Better
The Johnson Street Bridge has served as a critical link to the city of Victoria, British Columbia, Canada, for many years. A single-leaf bascule bridge that is functional and visually appealing replaced...

Monumental Makeover
Visitors to St Louis's iconic Gateway Arch can now enjoy an even more monumental experience, thanks to an expanded underground museum with a new glazed entrance. The $380-million project also features...

Originality Built In
The new Goethals Bridge linking New Jersey and New York is a twin cable-stayed crossing that incorporates an innovative cable-stayed anchor in its towers, which angle outward to keep melting in off the...

Energy Star
The recently opened corporate headquarters of United Therapeutics is one of the largest net-zero energy office buildings in the world. Geo-exchange wells, an earth labyrinth, natural ventilation, and electrochromic...

Mixed Foundations Resolve Complex Conditions
A 46-story residential tower currently under construction in downtown Boston abuts an existing parking garage, necessitating extreme care to ensure its stability amid tight space constraints. Part of the...

 

 

 

 

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