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Beam bridges are the simplest structural forms for bridge spans supported by an abutment or pier at each end. [1] No moments are transferred throughout the support, hence their structural type is known as simply supported. The simplest beam bridge could be a log (see log bridge), a wood plank, or a stone slab (see clapper bridge) laid
Length range Image Longest span Arch bridge: 575 meters (Ping'nan Third Bridge, Guangxi, Southern China) Through arch bridge: Beam bridge (Integral beam bridge) [1] Log bridge (beam bridge) Viaduct: Cavity wall viaduct Bowstring arch: Box girder bridge: Cable-stayed bridge: 1,104 m (Russky Bridge, Vladivostok, Primorsky Krai, Russian Far East)
These create standardized I-beam and wide flange beam [7] shapes up to 100 feet in length. A plate girder is a girder that has been fabricated by welding plates together to create the desired shape. The fabricator receives large plates of steel in the desired thickness, and then cuts the flanges and web from the plate in the desired length and ...
The use of double tees with wide flange permits fewer beams and to have them stay in place to form the deck, resulting in a shorter construction time. The first design was introduced in 2008 called "NEXT F" with 4-inch (10 cm) flange thickness requires 4-inch (10 cm) topping. This was used for the construction of the Maine State Route 103 ...
Glen Canyon Dam Bridge: Colorado River: 1959: Arizona: Phil G. McDonald Bridge (Glade Creek Bridge) Glade Creek: 1988: West Virginia: 565 ft (172.2 m) Rio Grande Gorge Bridge: Rio Grande: 1965: New Mexico: 486 ft (148.1 m) Perrine Bridge: Snake River: 1976: Idaho: 470 ft (143.3 m) Navajo Bridge (dual spans; the 1929 span is 467 ft high ...
Some bridges are measured from the beginning of the entrance ramp to the end of the exit ramp. Some are measured from shoreline to shoreline. Yet others use the length of the total construction involved in building the bridge. Since there is no standard, no ranking of a bridge should be assumed because of its position in the list.
The Braga Bridge is a continuous truss bridge. It was the fourth longest span of this type when it was completed in 1966. This list of continuous bridge spans ranks the world's continuous truss bridges in two listings: The first is ranked by the length of main span (the longest length of unsupported roadway) and the second by the total length of continuous truss spans.
A similar bridge on this river was fabricated ashore and pushed across its pylons. Single box girder bridge , flyover above eastern approach of the San Francisco–Oakland Bay Bridge. A box girder bridge, or box section bridge, is a bridge in which the main beams comprise girders in the shape of a hollow box.