英语翻译Cantilever .Often it is not feasible to construct long span bridges by means of intermediate piers .In deep swift-running rivers or in soft subsoils ,for example ,it may be difficult to construct the piers or to make them deep enough to r

英语翻译Cantilever .Often it is not feasible to construct long span bridges by means of intermediate piers .In deep swift-running rivers or in soft subsoils ,for example ,it may be difficult to construct the piers or to make them deep enough to r
英语翻译
Cantilever .Often it is not feasible to construct long span bridges by means of intermediate piers .In deep swift-running rivers or in soft subsoils ,for example ,it may be difficult to construct the piers or to make them deep enough to reach a firm foundation rock .In such cases the span of a rigid-beam structure can be extended simply by using two beams—one extending from each bank — with one end of each beam firmly anchored to its foundation ,rather than simply resting on it as in ordinary rigid-bea construction .Each of the anchored beams in this kind of structure is called a cantilever .Perhaps the simplest familiar example of a single cantilevers is the familiar diving board .In an ordinary cantilever bridge,the gap between the end of the cantilever is closed,providing acontinuous deck for the roadway,but if the bridge were cut in two at the point of closure each cantilever would support itself.Usually the gap between the cantilever is closed by means of a rigid beam,thus estending the span of the cantilevers.

英语翻译Cantilever .Often it is not feasible to construct long span bridges by means of intermediate piers .In deep swift-running rivers or in soft subsoils ,for example ,it may be difficult to construct the piers or to make them deep enough to r
悬臂.往往是不可行的建构中间大跨度桥梁桥墩手段.在深快速运行的河流或软底土,例如,它可能难以兴建码头或不够深入,使他们达到一个坚实的基础岩石.在这种情况下,刚性梁结构跨度可以延长只需使用两束一,从各银行的延续 - 一个牢固的基础,每一个锚定梁端,而不是简单地满足于它在普通刚东亚银行作为建设.每个梁的锚定在这种结构被称为一种悬臂.也许最简单的单悬臂熟悉的例子是大家熟悉的跳板.在一个普通的悬臂桥,两者之间的差距的悬臂端是封闭的,提供的巷道acontinuous甲板,但如果桥被一分为二的封闭点每个悬臂会支持itself.Usually悬臂之间的差距关闭一个刚性梁手段,从而estending的悬臂跨度.