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The bridge may be stiffened by the addition of cables that do not bear the primary structural or live loads and so may be relatively light. These also add stability in wind. An example is the 220-meter-long (720 ft) bridge across the river Drac at Lac de Monteynard-Avignonet: this bridge has stabilizing cables below and to the side of the deck.
Pipeline bridges may be made of steel, fiber reinforced polymer, reinforced concrete or similar materials. [2] They may vary in size and style depending on the size of the pipeline being run. As there is normally a steady flow in pipelines, they can be designed as suspension bridges. They may also be added to an existing bridge. [1]
The high number of complex moving parts – fourteen hydraulic rams, numerous precision bearings, and an underground machinery chamber to provide the required oil pressure – can be seen as an example of overengineering, and has led to maintenance failures where the bridge is unable to move for significant periods of time.
The moving bridge had two bascule leaves, each 48 feet (15 m) long that were connected by a 69 feet (21 m) long deck-girder approach, for a total overall length of 372 feet (113 m). [6] The girders were 40 feet (12 m) in width; which were wider than the 37.5 feet (11.4 m) bascules. [6]
It's called Peak Walk at the Glacier 3,000 Resort in the Swiss Alps, and it's the world's first suspension bridge to ever 31 inches wide. 9,800 feet up. That's a bridge
In civil engineering, clearance refers to the difference between the loading gauge and the structure gauge in the case of railroad cars or trams, or the difference between the size of any vehicle and the width/height of doors, the width/height of an overpass or the diameter of a tunnel as well as the air draft under a bridge, the width of a lock or diameter of a tunnel in the case of watercraft.
The center span between the two suspension towers is 1,380 feet (421 m) long, [16] [17] and the side spans between the suspension towers and the anchorages are each 700 feet (213 m) long. [16] The total length of the bridge is 2,780 feet (847 m), and the deck is 98 feet (30 m) wide. [16]
A bascule bridge (also referred to as a drawbridge or a lifting bridge) is a moveable bridge with a counterweight that continuously balances a span, or leaf, throughout its upward swing to provide clearance for boat traffic.