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Quizzical Pursuit
—The Architecture Puzzler
Created by Dave Guadagni
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Solution to Last Week's Puzzler
Architecture Puzzler #323
Question
The new pedestrian bridge "Passerelle Simone de Beauvoir" crosses the Seine in Paris. It has a length of 885 feet (270 meters) and a main span of 620 feet (190 meters), yet its main structure, a "pectinate lenticular" truss, allows the bridge to be relatively light. Describe the basic "look" of the bridge.
Answer
The bridge, featured in the October 5, 2006 issue of ArchitectureWeek, is best described as "undulating." The basic truss form is lens-shaped, and the bridge is made up of two truss plains and three pedestrian ribbons that alternately rise and fall.
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Dave Guadagni, AIA, is an architect with Robertson/Sherwood/Architects
Quizzical Pursuit is Copyright 2007, Dave Guadagni.
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Another bridge in Paris, to Notre Dame Cathedral, 1163 to 1250.
Photo: © Kevin Matthews/ AI
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