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
| Jan 17, 2012
SOM Chicago wins competition to design China's Suzhou Center
The 75-level building is designed to accommodate a complex mixed-use program including office, service apartments, hotel and retail on a 37,000 sm site.
| Jan 17, 2012
FxFowle and CO Architects form joint venture
FxFowle and CO Architects creates a dynamic alliance built on a shared dedication to collaboration in process, innovation in programming, and excellence in design.
| Jan 17, 2012
Capital Engineering joins AECOM
With 160 employees based in Taipei and Kaohsiung, CEC specializes in environmental, water, hydraulic and land development engineering consulting services for clients in Taiwan's public and private sectors.
| Jan 17, 2012
SOM launches Los Angeles design studio
Expert team to join the firm's West Coast practice, focusing on innovative urban and environmentally sustainable design in Southern California
| Jan 16, 2012
2012 40 Under 40 applications due Friday, Jan. 20
Building Design+Construction's 40 Under 40 is open to AEC professionals from around the world who are under 40 years old, as of January 1, 2012.
| Jan 16, 2012
Mid-Continent Tower wins 25 Year Award from AIA Eastern Oklahoma
Designed by Dewberry, iconic tower defines Tulsa’s skyline.
| Jan 16, 2012
Suffolk completes construction on progressive operating suite
5,700 square-foot operating suite to be test bed for next generation of imaged-guided operating techniques.
| Jan 15, 2012
Hollister Construction Services oversees interior office fit-out for Harding Loevner
The work includes constructing open space areas, new conference, trading and training rooms, along with multiple kitchenettes.
| Jan 15, 2012
Smith Consulting Architects designs Flower Hill Promenade expansion in Del Mar, Calif.
The $22 million expansion includes a 75,000-square-foot, two-story retail/office building and a 397-car parking structure, along with parking and circulation improvements and new landscaping throughout.
| Jan 15, 2012
535 Madison Avenue achieves LEED Gold certification
Class-A commercial building meets sustainability requirements of LEED Program.