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Girder bridges have existed for millennia in a variety of forms depending on resources available. The oldest types of bridges are the beam, arch and swing bridges, and they are still built today. These types of bridges have been built by human beings since ancient times, with the initial design being much simpler than what we utilize today.
In a plate girder bridge, the plate girders are typically I-beams made up from separate structural steel plates (rather than rolled as a single cross-section), which are welded or, in older bridges, bolted or riveted together to form the vertical web and horizontal flanges of the beam. In some cases, the plate girders may be formed in a Z-shape ...
The viaduct is a beam or girder bridge. It has reinforced concrete piers and pier bends supporting steel-plate girder beams and a composite deck with some 200 moving parts. [2] The viaduct is 2.9 km long [3] and 1.95 km between abutments and was at the time the largest such bridge in the British Isles. [1] [4]
Beam bridges are not limited to a single span. Some viaducts such as the Feiyunjiang Bridge in China have multiple simply supported spans held up by piers. This is opposed to viaducts using continuous spans over the piers. Beam bridges are often only used for relatively short distances because, unlike truss bridges, they have no built in supports.
Montana's Steel Stringer and Steel Girder Bridges MPS Marias River Bridge: 1936 2012-4-26 Shelby vicinity: Toole: Montana's Steel Stringer and Steel Girder Bridges MPS Middle Fork Bridge: 1920 2002-09-23 West Glacier: Flathead: Missouri River Bridge: 1904
The various parts of a truss bridge. A deck is the surface of a bridge. A structural element of its superstructure, it may be constructed of concrete, steel, open grating, or wood. Sometimes the deck is covered by a railroad bed and track, asphalt concrete, or other form of pavement for ease of vehicle crossing.
For steel box girders, the girders are normally fabricated off site and lifted into place by crane, with sections connected by bolting or welding. If a composite concrete bridge deck is used, it is often cast in-place using temporary falsework supported by the steel girder. Either form of bridge may also be installed using the technique of ...
Stone Multiplate Deck Arch Bridge over Fountain Creek: 1932 1985-02-04 Manitou Springs: El Paso: Open Spandral Deck Arch Browns's Canyon Bridge: 1908 2013-07-30 Salida: Chaffee: Concrete slab and girder Cherry Creek Bridge: 1948 2002-10-15 Franktown