girder

/gur-der/US // ˈgɜr dər //UK // (ˈɡɜːdə) //

大梁,大樑,大桥,大棚

Definitions

n.名词 noun

1
- : a large beam, as of steel, reinforced concrete, or timber, for supporting masonry, joists, purlins, etc.
- : a principal beam of wood, steel, etc., supporting the ends of joists.

nounmain support beam

Synonyms

Structurally, it is built around a central core that will contain the main mechanical elements of the building, with the helix-shaped envelope supported by arced, fin-like girders anchored into this large, inner column.
A fundamental difference in girder bridges arises from the mode of support.
In the girders of bridges the horizontal girder is almost exclusively subjected to vertical loading forces.
The centre girder may be built on the cantilevers and rolled into place or lifted from the water-level.
Sometimes a girder is rolled out about one-third of its length, and then supported on a floating pontoon.
In addition, an allowance is made for pressure on the leeward girder according to a scale.