倍力桥（Bailey bridge）是英国工程师唐纳德·倍力于二次大战时期，为解决军队渡河的问题，利用预先设计好的钢架迅速组合而成的人工便桥。

在水灾或地震后，如果做为主要交通的桥梁因故中断，可使用倍力桥在短期内快速恢复被中断的交通。例如：2009年八八水灾的台东县知本温泉区。

The Bailey bridge is a type of portable, pre-fabricated, truss bridge. It was developed by the British during World War II for military use and saw extensive use by British, Canadian and the American military engineering units.

A Bailey bridge had the advantages of requiring no special tools or heavy equipment to assemble. The wood and steel bridge elements were small and light enough to be carried in trucks and lifted into place by hand, without requiring the use of a crane. The bridges were strong enough to carry tanks. Bailey bridges continue to be extensively used in civil engineering construction projects and to provide temporary crossings for foot and vehicle traffic.