Glossary

Cantilever



A beam that "sticks out", supported at one end only. Cantilever beams may be seen in pairs, with their thick ends joined, sitting on a pier in a river.

The feature of a cantilever is the zero bending moment at the "free" end, and maximum at the thick end. A natural example is a tree, fixed at its lower end, the upper end free, carrying the horizontal transverse wind loads. You may often see a cantilever used for a swing bridge, which is pivoted on one bank.

 



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