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
Industry Research | Jun 15, 2023
Exurbs and emerging suburbs having fastest population growth, says Cushman & Wakefield
Recently released county and metro-level population growth data by the U.S. Census Bureau shows that the fastest growing areas are found in exurbs and emerging suburbs.
Healthcare Facilities | Jun 14, 2023
Design considerations for behavioral health patients
The surrounding environment plays a huge role in the mental state of the occupants of a space, especially behavioral health patients whose perception of safety can be heightened. When patients do not feel comfortable in a space, the relationships between patients and therapists are negatively affected.
Engineers | Jun 14, 2023
The high cost of low maintenance
Walter P Moore’s Javier Balma, PhD, PE, SE, and Webb Wright, PE, identify the primary causes of engineering failures, define proactive versus reactive maintenance, recognize the reasons for deferred maintenance, and identify the financial and safety risks related to deferred maintenance.
University Buildings | Jun 14, 2023
Calif. State University’s new ‘library-plus’ building bridges upper and lower campuses
A three-story “library-plus” building at California State University, East Bay (CSUEB) that ties together the upper and lower campuses was recently completed. The 100,977-sf facility, known as the Collaborative Opportunities for Research & Engagement (“CORE”) Building, is one of the busiest libraries in the CSU system. The previous library served 1.2 million visitors annually.
Higher Education | Jun 14, 2023
Designing higher education facilities without knowing the end users
A team of architects with Page offers five important factors to consider when designing spaces for multiple—and potentially changing—stakeholders.
Resiliency | Jun 14, 2023
HUD offers $4.8 billion in funding for green and resilient building retrofit projects
The Department of Housing and Urban Development (HUD) recently released guidelines for its Green and Resilient Retrofit Program (GRRP) that has $4.8 billion for funding green projects.
Arenas | Jun 14, 2023
A multipurpose arena helps revitalize a historic African American community in Georgia
In Savannah, Ga., Enmarket Arena, a multipurpose arena that opened last year, has helped revitalize the city’s historic Canal District—home to a largely African American community that has been historically separated from the rest of downtown.
Building Materials | Jun 14, 2023
Construction input prices fall 0.6% in May 2023
Construction input prices fell 0.6% in May compared to the previous month, according to an Associated Builders and Contractors analysis of the U.S. Bureau of Labor Statistics’ Producer Price Index data released today. Nonresidential construction input prices declined 0.5% for the month.
Mass Timber | Jun 13, 2023
Mass timber construction featured in two-story mixed-use art gallery and wine bar in Silicon Valley
The Edes Building, a two-story art gallery and wine bar in the Silicon Valley community of Morgan Hill, will prominently feature mass timber. Cross-laminated timber (CLT) and glulam posts and beams were specified for aesthetics, biophilic properties, and a reduced carbon footprint compared to concrete and steel alternatives.
Mixed-Use | Jun 12, 2023
Goettsch Partners completes its largest China project to date: a mixed-used, five-tower complex
Chicago-based global architecture firm Goettsch Partners (GP) recently announced the completion of its largest project in China to date: the China Resources Qianhai Center, a mixed-use complex in the Qianhai district of Shenzhen. Developed by CR Land, the project includes five towers totaling almost 472,000 square meters (4.6 million sf).
