| slovo | definícia |
Bowstring girder
(gcide) | Girder \Gird"er\, n. [From Gird to encircle.]
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1. One who, or that which, girds.
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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.
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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.
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Bowstring girder
(gcide) | Bowstring \Bow"string`\, n.
1. The string of a bow.
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2. A string used by the Turks for strangling offenders.
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Bowstring bridge, a bridge formed of an arch of timber or
iron, often braced, the thrust of which is resisted by a
tie forming a chord of the arch.
Bowstring girder, an arched beam strengthened by a tie
connecting its two ends.
Bowstring hemp (Bot.), the tenacious fiber of the
Sanseviera Zeylanica, growing in India and Africa, from
which bowstrings are made. --Balfour.
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