Truss bridge
Truss bridges are usually designed as steel structures and occasionally as timber structures . Due to the high traffic loads, they are often used as railway overpasses and road bridges . They are available as parallel-belt and non-parallel-belt trusses, as well as with lower and upper decks. Lattice girder bridges are not considered to be truss bridges .
Basic types
Truss with parallel belts
Non-parallel-belt framework
Semi-parabolic beam
Truss with the roadway below
Truss with overhead roadway
Well-known types
after Stephen H. Long (1784–1864)
after William Howe (1803-1852)
after Thomas Willis Pratt (1812–1875) and Caleb Pratt
after James Warren (1806-1908) and Willoughby T. Monzoni
after Arthur Vierendeel (1852–1940)
Arch bridge after Squire Whipple (1804–1888)
after Donald Coleman Bailey (1901–1985)
Examples
Ikitsuki Bridge , longest span: 400 m
Kuronoseto Bridge
Matthew E. Welsh Bridge
Sciotoville Bridge , longest span: 2 × 236 m
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