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38.1 x 38.1 cm ⏐ 15.0 x 15.0 in (300dpi)
SCIENCE PHOTO LIBRARY SCIENCE PHOTO LIBRARY
Cantilever bridge, illustration. Cantilevers are structures that project horizontally into space and are supported at only one end. A simple cantilever span is formed by two cantilever arms extending from opposite sides of a gap, meeting in the middle. In the example seen here the cantilever arms do not meet in the centre. Instead they support a suspended span or central truss which rests on the ends of the cantilever arms. The load on the bridge (purple arrow) is transferred as tension and compression forces in the structure of the bridge. The red arrows represent tension forces, and blue arrows represent compression forces.
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