box girder

American  

noun

1. box beam.

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box girder British  

noun

1. Also called: box beam. 

   1. a girder that is hollow and square or rectangular in shape

   2. ( as modifier )

      a box-girder bridge

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Etymology

Origin of box girder

First recorded in 1860–65

Example Sentences

When plans for the new Kosciuszko Bridge were being developed in 2010, nearby neighborhoods were asked about four bridge types: cable-stayed; through arch, like the Hell Gate Bridge; deck arch; and box girder.

From New York Times • Apr. 27, 2017

This main framing, also of the "box girder" form, is strengthened with angle irons and braced together at the tops by a platform supporting the gearing of the bucket chains, as shown on Fig.

From Scientific American Supplement, No. 795, March 28, 1891 by Various

In this way, the hull of the ship was converted into a box girder of immensely increased strength, and was, I believe, the first ocean steamer ever so constructed.

From Men of Invention and Industry by Smiles, Samuel