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
| Feb 22, 2013
Detroit project would bring 'fairytale forest' to riverfront
A proposal by atelierWHY to create a heavily wooded park on the downtown riverfront has taken first place in the juried Detroit By Design competition.
| Feb 22, 2013
Zaha Hadid to help plan new London-area airport hub
The Mayor of London has appointed Zaha Hadid Architects to help create a major new airport in southeastern England.
| Feb 21, 2013
AIA College of Fellows awards 2013 Latrobe Prize for 'The City of 7 Billion'
The American Institute of Architects (AIA) College of Fellows has awarded the 2013 Latrobe Prize of $100,000 for the proposal, “The City of 7 Billion.”
| Feb 21, 2013
BD+C's 2011 White Paper: Zero and Net-Zero Energy Buildings + Homes
We submit our eighth White Paper on Sustainability in the hope that it will inspire architects, engineers, contractors, building owners, developers, building product manufacturers, environmentalists, policymakers, government officials, corporate executives, officeholders, and the public to foster the development of net-zero energy buildings and homes.
| Feb 21, 2013
BD+C's 2008 White Paper: Green Buildings + Climate Change
In this White Paper, we provide concrete ways in which AEC professionals can have a positive role in addressing climate change.
| Feb 21, 2013
Holl videos discuss design features of Chengdu ' Porosity Block' project
Architect Steven Holl has released two short films describing the development of Sliced Porosity Block in Chengdu, China.
| Feb 21, 2013
Construction team chosen for world's tallest building in Jeddah, Saudi Arabia
Construction team chosen for world's tallest building in Jeddah, Saudi Arabia.
| Feb 21, 2013
Stephen C. Wright joins Leo A Daly as Managing Principal in D.C.
International architecture, planning, engineering, interior design and program management firm LEO A DALY welcomes Stephen C. Wright, AIA, as the new managing principal of the Washington, D.C., office. Wright will oversee the D.C. team in executing federal, local government, private and non-profit projects and pursuing new business opportunities in markets including aviation, corporate and commercial, higher education, hospitality and institutional facilities.
| Feb 20, 2013
Architecture Billings Index sees strongest growth since 2007
The American Institute of Architects reported the January ABI score was 54.2, up sharply from 51.2 in December. This score reflects a strong increase in demand for design services.
