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
Architects | Mar 9, 2017
Watch Frank Lloyd Wright and Buckminster Fuller discuss architecture in animated video shorts
Given more time, Wright wanted to rebuild the country and change the nation.
Architects | Mar 6, 2017
Demolished Frank Lloyd Wright buildings get new life with photorealistic renderings
Architect David Romero recreated the Larkin Administration Building and the Rose Pauson House with detailed, fully colored renderings.
Building Team | Mar 6, 2017
AEC firms: Your website is one of the most important things you'll build
Don’t believe it? You’d better take a look at the research.
Architects | Mar 3, 2017
Hoffmann Architects’ Leadership Elected President of Three Industry Organizations
Maureen Dobbins, Lawrence Keenan, and Arthur Sanders to lead chapters of BOMA, AIA, and ICRI.
Office Buildings | Mar 2, 2017
White paper from Perkins Eastman and Three H examines how design can inform employee productivity and wellbeing
This paper is the first in a planned three-part series of studies on the evolution of diverse office environments and how the contemporary activity-based workplace (ABW) can be uniquely tailored to support a range of employee personalities, tasks and work modes.
Building Team | Mar 1, 2017
Intuitive wayfinding: An alternate approach to signage
Intuitive wayfinding is much like navigating via waypoints—moving from point to point to point.
Architects | Mar 1, 2017
Rafael Aranda, Carme Pigem and Ramon Vilalta receive the 2017 Pritzker Architecture Prize
2017 marks the first time that three architects together are honored with the prize.
Architects | Feb 27, 2017
AIA selects four individuals to receive the 2017 Associates Award
The AIA Associates Award is given to individual Associate AIA members to recognize outstanding leaders and creative thinkers for significant contributions to their communities and the architecture profession.
Architects | Feb 24, 2017
14 architects selected to receive the 2017 Young Architects Award
Young Architects are defined as professionals who have been licensed 10 years or fewer regardless of their age.
Architects | Feb 20, 2017
Take an architecture class taught by Frank Gehry
The starchitect will be teaching a course for MasterClass, an online education platform.