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A girder (/ ˈ ɡ ɜːr d ər /) is a beam used in construction. [1] It is the main horizontal support of a structure which supports smaller beams. Girders often have an I-beam cross section composed of two load-bearing flanges separated by a stabilizing web , but may also have a box shape, Z shape, or other forms.
A rolled steel girder is a girder that has been fabricated by rolling a blank cylinder of steel through a series of dies to create the desired shape. 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 ...
A box girder or tubular girder (or box beam) is a girder that forms an enclosed tube with multiple walls, as opposed to an Ɪ-or H-beam. Originally constructed of wrought iron joined by riveting , they are now made of rolled or welded steel, aluminium extrusions or prestressed concrete .
Plate girder bridges are suitable for short to medium spans and may support railroads, highways, or other traffic. Plate girders are usually prefabricated and the length limit is frequently set by the mode of transportation used to move the girder from the bridge shop to the bridge site. [3] Anatomy of a plate girder.
Plate girder bridge This page was last edited on 9 November 2021, at 16:20 (UTC). Text is available under the Creative Commons Attribution-ShareAlike 4.0 ...
During the "Infinite Crisis" storyline, Girder was part of the Secret Society of Super Villains led by Alexander Luthor Jr. (who was posing as Lex Luthor). [2] One Year Later, Girder was seen fighting the Teen Titans, but was defeated. He was later seen in Salvation Run. [1] In the DC Special: Cyborg mini-series, Girder has joined the Cyborg ...
Such modern bridges include girder, plate girder, and box girder bridges, all types of beam bridges. Types of construction could include having many beams side by side with a deck across the top of them, to a main beam either side supporting a deck between them. The main beams could be I-beams, trusses, or box girders.
Pages in category "Girder bridges in the United States" The following 200 pages are in this category, out of approximately 276 total. This list may not reflect recent changes .