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
| Apr 10, 2012
Moriarty & Associates selected as GC for Miami’s BrickellHouse Condo
Construction of the 46-story development is schedule to get underway this summer and be completed in 2014.
| Apr 6, 2012
Flat tower green building concept the un-skycraper
A team of French designers unveil the “Flat Tower” design, a second place winner in the 2011 eVolo skyscraper competition.
| Apr 6, 2012
National Association of Women in Construction forum to be hosted in Philadelphia
The April Forum, titled “Declare your Independence!” will feature educational sessions on topics ranging from Managing the Generation Gap and Dealing with Contract language across state borders to Strategic and Succession Planning.
| Apr 6, 2012
Rooftop solar energy program wins critical approval from L.A. city council
Los Angeles Business Council applauds decision allowing LADWP to create new national model for rooftop solar energy
| Apr 6, 2012
Batson-Cook breaks ground on hotel adjacent to Infantry Museum & Fort Benning
The four-story, 65,000-ft property will feature 102 hotel rooms, including 14 studio suites.
| Apr 6, 2012
Perkins Eastman unveils Qatar mixed-use sports complex
Home stadium for Lekhwiya Club a vibrant addition to Doha’s architectural identity.
| Apr 5, 2012
5 tips for a successful door and window retrofit
An exclusive tip sheet to help the Building Team manage door and window retrofits successfully.
| Apr 4, 2012
Educational facilities see long-term benefits of fiber cement cladding
Illumination panels made for a trouble-free, quick installation at a cost-effective price.