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
| Sep 15, 2022
Monthly construction input prices dip in August
Construction input prices decreased 1.4% in August compared to the previous month, according to an Associated Builders and Contractors analysis of U.S. Bureau of Labor Statistics Producer Price Index data released today.
| Sep 15, 2022
First LEED Platinum, net zero and net zero water synagogue opens
Kol Emeth Center, the world’s first LEED Platinum, net zero and net zero water synagogue, opened recently in Palo Alto, Calif.
| Sep 14, 2022
Fires on Amazon warehouse roofs seemingly caused by faulty PV installations
Amazon has made installing solar panels on rooftops a key part of its ESG strategy, but a series of events last year show how challenging greening up major facilities can be.
| Sep 14, 2022
Indian tribe’s new educational campus supports culturally appropriate education
The Kenaitze Indian Tribe recently opened the Kahtnuht’ana Duhdeldiht Campus (Kenai River People’s Learning Place), a new education center in Kenai, Alaska.
| Sep 13, 2022
California building codes now allow high-rise mass-timber buildings
California recently enacted new building codes that allow for high-rise mass-timber buildings to be constructed in the state.
| Sep 13, 2022
Orange County opens civic center complex—one of California’s largest P3 projects
Orange County’s recently opened County Administration North (CAN) building caps an urban center development that constitutes one of California’s largest ever P3 projects.
Laboratories | Sep 12, 2022
Lab space scarcity propels construction demand in life sciences sector
In its 2021 Life Sciences Real Estate Outlook, JLL predicted that access to talent would be a primary concern for an industry sector that had been growing by leaps and bounds. A year later, talent still guides real estate decisions. But market conditions of a different sort were cooling the biotech field: namely, investors that have soured on startups which underperformed after going public. What this means for new construction and renovation going forward is unpredictable, as the drivers behind life sciences’ surge are still palpable.
Architects | Sep 12, 2022
FWA Group joins national architecture, interior design, and planning firm Hord Coplan Macht
Hord Coplan Macht acquires FWA Group.
| Sep 12, 2022
Staff at New York City architecture firm is first in U.S. to unionize
Staff at New York City architecture firm is first in U.S. to unionize.
| Sep 12, 2022
San Antonio’s new courthouse aims to provide safety and security while also welcoming the public
The San Antonio Federal Courthouse, which opened earlier this year, replaces a courthouse that had been constructed as a pavilion for the 1968 World’s Fair.