Box girder
Girder Gird"er, n. [From {Gird} to encircle.] [1913 Webster] 1. One who, or that which, girds. [1913 Webster]

2. (Arch. & Engin.) A main beam; a stright, horizontal beam to span an opening or carry weight, such as ends of floor beams, etc.; hence, a framed or built-up member discharging the same office, technically called a compound girder. See Illusts. of {Frame}, and {Doubleframed floor}, under {Double}. [1913 Webster]

{Bowstring girder}, {Box girder}, etc. See under {Bowstring}, {Box}, etc.

{Girder bridge}. See under {Bridge}.

{Lattice girder}, a girder consisting of longitudinal bars united by diagonal crossing bars.

{Half-lattice girder}, a girder consisting of horizontal upper and lower bars connected by a series of diagonal bars sloping alternately in opposite directions so as to divide the space between the bars into a series of triangles. --Knight.

{Sandwich girder}, a girder consisting of two parallel wooden beams, between which is an iron plate, the whole clamped together by iron bolts. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Box girder — Box Box, n.; pl. {Boxes} [As. box a small case or vessel with a cover; akin to OHG. buhsa box, G. b[ u]chse; fr. L. buxus boxwood, anything made of boxwood. See {Pyx}, and cf. {Box} a tree, {Bushel}.] 1. A receptacle or case of any firm material… …   The Collaborative International Dictionary of English

  • Box girder — A box or tubular girder is a girder that forms an enclosed tube with multiple walls, rather than an I or H beam. Originally constructed of riveted wrought iron, they are now found in rolled or welded steel, aluminium extrusions or pre stressed… …   Wikipedia

  • box girder — noun a hollow girder that is square or rectangular in cross section …   English new terms dictionary

  • box girder — /ˈbɒks gɜdə / (say boks gerduh) noun a hollow girder which is square or rectangular in cross section …   Australian English dictionary

  • box girder. — See box beam. [1860 65] * * * …   Universalium

  • box girder — noun a beam built up from boards; has a hollow rectangular cross section • Syn: ↑box beam • Hypernyms: ↑beam …   Useful english dictionary

  • box girder. — See box beam. [1860 65] …   Useful english dictionary

  • box girder — noun A steel beam with a hollow rectangular cross section; used for constructing bridges …   Wiktionary

  • Box girder bridge — Underneath the No. 2 Road Bridge in Canada Ancestor Tubular bridge Related jetway, skyway …   Wikipedia

  • box-girder bridge — /ˈbɒks gɜdə brɪdʒ/ (say boks gerduh brij) noun a bridge constructed with box girders …   Australian English dictionary

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