Montreal-based MAADI Group recently designed a 151-foot-long, 6½-foot-wide pedestrian work bridge to connect platforms in the West Philippine Sea. Using high-strength aluminum for the bridge’s material, MAADI designed the bridge with lateral movement capability that could withstand deep-ocean movement and wind gusts up to 200 km/hr (124 mph).
MAADI’s President/CEO, Alexandre de la Chevrotière, says that water and wind movements can cause the platforms to shift by as much as one inch, so the bridge was engineered to account for movement up to one meter. A trolley system at one end of the bridge allows slight back-and-forth movements of the bridge between the platforms.
The span was built in four sections. Its abutments are unique, according to de la Chevrotière, in that their pin connections rotate on two axes. There’s also a pin connection at the top of the trolley, which allows the bridge to move in several different directions by as much as three degrees to account for ocean movements, he says.
The 13-ton bridge was built to accommodate up to 80 workers on deck. (The accompanying image shows 8.4 tons of water being used to test the span’s load capacity.) The bridge’s camber was designed to reduce the deflection caused by dead and live loads.
“Aluminum is the material of the future,” says de la Chevrotière. “It doesn’t rust and it’s maintenance free.”
Read about more innovations from BD+C's 2014 Great Solutions Report.
Related Stories
Giants 400 | Aug 8, 2019
2019 Office Giants Report: Demand for exceptional workplaces will keep the office construction market strong
Office space consolidation and workplace upgrades will keep project teams busy, according to BD+C's 2019 Giants 300 Report.
Museums | Jul 29, 2019
A new museum debuts inside the Empire State Building
A $165 million, 10,000-sf museum opened on the second floor of the Empire State Building in New York City, completing the second of a four-phase “reimagining” of that building’s observatory experience, which draws four million visitors annually.
Multifamily Housing | Jul 23, 2019
Is prefab in your future?
The most important benefit of offsite construction, when done right, is reliability.
Healthcare Facilities | Jul 15, 2019
Can a kids’ healthcare space teach, entertain, and heal?
Standard building requirements don’t have to be boring. Here’s how you can inject whimsical touches into everyday design features.
Architects | Jul 10, 2019
9 picks from NeoCon 2019
Interior architect Mary Bartlett selects her favorite products and systems from the 2019 NeoCon show, Chicago, June 10-12, 2019.
BD+C University Course | Jul 8, 2019
Shadow box design: To vent or not to vent [AIA course]
A curtain wall shadow box is a spandrel assembly consisting of vision glass at the building exterior and an opaque infill at the interior side of the curtain wall system. This course is worth 1.0 AIA LU/HSW.
Architects | Jul 8, 2019
Unity Temple, Robie House among eight Frank Lloyd Wright projects to receive World Heritage status
The UNESCO designation includes signature works designed by Wright during the first half of the 20th century.
Architects | Jul 1, 2019
Perkins Eastman Co-founder Mary-Jean Eastman to keynote Women in Design+Construction Conference
Two of Perkins Eastman’s firm leaders—Mary-Jean Eastman, FAIA, Vice Chair and Managing Principal of its New York City studio, and Barbara Mullenex, AIA, Managing Principal of the Washington, D.C., studio—will share anecdotes about their personal journeys to the top of a global architecture, design, and planning firm, at Building Design+Construction's fourth annual Women in Design+Construction Conference. The event will take place November 11-13, 2019, at the Fairmont Scottsdale Princess resort in Scottsdale, Ariz.
Sports and Recreational Facilities | Jun 27, 2019
Foster + Partners unveils design of wooden boathouse for Row New York
The project will sit on the banks of the Harlem River in Sherman Creek Park.
Building Tech | Jun 26, 2019
Modular construction can deliver projects 50% faster
Modular construction can deliver projects 20% to 50% faster than traditional methods and drastically reshape how buildings are delivered, according to a new report from McKinsey & Co.