plate girder

noun

1. an iron or steel beam built up from plates and shapes welded or riveted together, usually including a plate or plates for a web, four angle irons forming two flanges, and a pair of plates to reinforce the flanges.

Word History and Origins

Origin of plate girder¹

First recorded in 1840–50

Example Sentences

The port awarded a contract in July 2021 to Kiewit West Inc. to dismantle and remove main steel truss spans, steel plate girder approaches, abutments, columns, access ramps, foundations and other pieces of the old bridge, officials said.

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Ashton designed several bridges over the Mississippi River and is considered a pioneer in the design of welded plate girder bridges.

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In the former line two of his most important works are the plate girder bridge over the entrance to one of the docks at Port Glasgow, for the Caledonian Railway, erected from plans by Messrs. Bell and Miller, C.E.,

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In the case of the plate girder loaded uniformly along the top, this extension is just half as great as the extension of the central-line of the same girder when free at the ends, supported along the base, and carrying the same load along the top.

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It is now practically solved for the case of a load distributed uniformly, or according to any rational algebraic law, and it is also solved for the case where the thickness is small compared with the length and depth, as in a plate girder, and the load is distributed in any way.

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