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In cantilever bridges, the cantilevers are usually built as pairs, with each cantilever used to support one end of a central section. The Forth Bridge in Scotland is an example of a cantilever truss bridge. A cantilever in a traditionally timber framed building is called a jetty or forebay.
This list of cantilever bridges ranks the world's cantilever bridges by the length of their main span. A cantilever bridge is a bridge built using cantilevers: structures that project horizontally into space, supported on only one end.
A cantilever bridge is a bridge built using structures that project horizontally into space, supported on only one end (called cantilevers).For small footbridges, the cantilevers may be simple beams; however, large cantilever bridges designed to handle road or rail traffic use trusses built from structural steel, or box girders built from prestressed concrete.
Long Biên Bridge - 106 metres (348 ft) cantilever span; Marquam Bridge; Million Dollar Bridge; Newburgh-Beacon Bridge - 2,204 feet (672 m) cantilever span; Pamban Bridge; Pulaski Skyway; Quebec Bridge - 549 metres (1,801 ft) cantilever span; Queensboro Bridge; Rainbow Bridge (Texas) - 680 feet (210 m) main span; Richmond–San Rafael Bridge
A cantilever spar cable-stayed bridge is a modern variation of the cable-stayed bridge. This design has been pioneered by the structural engineer Santiago Calatrava in 1992 with the Puente del Alamillo in Seville, Spain.
B. Bayside Bridge (Pinellas County, Florida) Bear River Bridge; Beardstown Bridge; Beaver Bridge (Ohio River) Beaver River Bridge; Belden Bly Bridge; Bellaire Bridge
An example was the Boyne Viaduct, built in 1855 in Drogheda, Ireland. The first continuous truss bridge in North America was the Lachine Bridge in Montreal, built in 1888, followed by the Sciotoville Bridge in 1916 and the Bessemer & Lake Erie Railroad Bridge in 1918. [2] [1]
Some cantilever bridges also have a smaller beam connecting the two cantilevers, for extra strength. The largest cantilever bridge is the 549-metre (1,801 ft) Quebec Bridge in Quebec, Canada. Arch bridge: Arch bridges have abutments at each end. The weight of the bridge is thrust into the abutments at either side.