Risk in Geotechnical Practice: Unraveling Foundation Uncertainty
Statistical Analysis Offers a Rational Approach for Controlling Foundation Risk in Design-Build Projects. For the past 20 years, design-build (DB) procurement has become the default for many transportation...

Enhanced Entrance
A new, smaller road, together with an improved entrance plaza and pathways, helped revitalize key areas within Niagara Falls State Park—despite the repeated discovery of underground contamination and other...

Strengthening Connections
China’s Hong Kong–Zhuhai–Macao Bridge is the world’s longest sea crossing. It promotes connectivity in a fast-growing region, significantly cutting journey times in what is known as the Greater Bay Area....

Spanning the Saint Lawrence
The recently opened Samuel De Champlain Bridge is an iconic gateway to Montreal. Its signature structure, an asymmetrical cable-stayed bridge, features a 240 m long main span over the Saint Lawrence River....

Design Details
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...

Reliability-Based Design (RBD) For Everyone: (No Monte Carlo Simulation Required!)
In North America, the design of earth structures for transportation applications is most often carried out using load and resistance factor design (LRFD). In the U.S., the AASHTO LRFD Bridge Design Specifications...

An Unknown-Unknown Does In An Overpass: A Soil Stockpile on Soft Clay Is Too Much for a Bridge in Canada
Like most structures, bridges are designed for an array of loading conditions. Some loads are known or can be reasonably estimated with confidence (i.e., known-knowns, such as structure dead and vehicular...

The State of Soil Improvement in China: The G-I Soil Improvement Committee’s China Scan Tour
During the last four decades, China has made significant improvement in various sectors of its infrastructure, including high-speed railways, long-span and cross-sea bridges, large dams, long- and large-diameter...

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,...

Under-Slab Utility Installation with Aggregate Piers: It's All About Planning
Aggregate pier ground improvement is commonly used in North America to support buildings. The technology has expanded in the last decade thanks to refinement and introduction of new techniques, more rigorous...

Immortal and Ethereal Beauty in Stone: The Taj Mahal
The Taj Mahal, probably one of the most beautiful structures in the world, has withstood the vagaries of history and the environment. Lengthy tomes have been written on its beauty and the details of the...

Connecting Continents: Challenges of the Eurasia Tunnel in Istanbul
The Eurasia Tunnel, the first bored tunnel crossing of the Istanbul Strait (Bosphorus) in Istanbul, Turkey, is a site that presents many unique challenges, including very poor ground conditions, unusually...

Next-Generation Drones Bolster Bridge Inspections
A preflight, flight, and postflight drone system saves time and money in bridge inspections. It can also create a digital "twin" of bridges....

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....

Crossing Grand Canyon: The Kaibab Trail Suspension Bridge
Recently named a national historic civil engineering landmark in ASCE's Historic Civil Engineering Landmark Program, the 1928 Kaibab Trail Suspension Bridge proved uniquely challenging to access, spanning...

Arena of Books
The new Qatar National Library features a folded design with cantilevered corners on the exterior, while inside, an enormous single space for reading or socializing offers terraces stacked with bookshelves....

Uplifted
The new Fore River Bridge, near Boston, leaves more room vertically and horizontally for passing ships, and its lift towers employ several cost-saving innovations....

Replacing an Icon
Since 1852, the Portage Viaduct has carried a rail line across the Genesee River Gorge, near the town of Portageville, New York. First made of timber, then replaced with a wrought iron structure after...

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...

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...

 

 

 

 

Return to search