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, 2012
ACI BIM manual for cast-in-place concrete in development
The improved communication, coordination, and collaboration afforded by BIM implementation have already been shown to save time and money in projects.
| Feb 22, 2012
Siemens earns LEED certification for Maryland office
The Beltsville facility, which also earned the ENERGY STAR Label for energy performance, implemented a range of energy efficiency, water conservation and sustainable operations measures as part of the certification process.
| Feb 22, 2012
CISCO recognizes Gilbane for quality construction, design, and safety
The project employed more than 2,000 tradespeople for a total of 2.1 million hours worked – all without a single lost-time accident.
| Feb 22, 2012
Perkins Eastman expands portfolio in China and Vietnam
Recent awards, project progress signal ongoing commitment to region.
| Feb 22, 2012
Suffolk awarded Boston post office renovation project
Renovation of art deco landmark will add 21,000 square feet of retail and 110 new parking spaces.
| Feb 21, 2012
Top 10 trends in commercial lenders’ environmental due diligence
EDR offers free webinar on February 22, 2012 at 1 p.m.
| Feb 21, 2012
Three Goettsch leaders elevated to AIA College of Fellows
Honor recognizes significant contributions to architecture and society.
| Feb 21, 2012
Skanska welcomes Morrison and Viviano to Atlanta office
Morrison will serve as a vice president and Viviano will serve as senior director of business development for Georgia.
| Feb 21, 2012
PV America West conference showcases solar growth market
Solar industry gathers March 19-21, 2012 in San Jose to discuss technology, market development and policy.
| Feb 21, 2012
SMPS announces Build Business 2012 keynote speakers
National conference set for July 11–13 in San Francisco.
