bascule

/bas-kyool/US // ˈbæs kyul //UK // (ˈbæskjuːl) //

基座,基调,基底板,基底柱

Definitions

n.名词 noun

1
Civil Engineering.
- : a device operating like a balance or seesaw, especially an arrangement of a movable bridge by which the rising floor or section is counterbalanced by a weight.

Each bascule consists of two main girders with cross girders and stringers.
At the opening span of the Tower bridge (fig. 13) there are four main girders in each bascule.
We shall see the poor devil get out of the carriage, and being fastened on to the bascule, and pulled into the lunette.
The cost has been set down at 65,000, or about one-thirtieth that of a suspension bridge, and one-third that of a bascule bridge.
The movable span is of the single leaf bascule type operated by a windlass.