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 Tubular bridge - Wikipedia, the free encyclopedia

Tubular bridge

From Wikipedia, the free encyclopedia

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Tubular bridge
Conwy Railway Bridge
Ancestor Box girder bridge
Related skyway, jetway
Descendant None
Carries Pedestrians, automobiles, trucks, light rail, heavy rail
Span range Short
Material Iron, steel, reinforced concrete, post-stressed concrete
Movable No
Design effort Low
Falsework required Depends upon length and degree of prefabrication

A tubular bridge is a bridge built as a rigid box section within which the traffic is carried. Famous examples include the original Britannia Bridge over the Menai Strait and the Conwy railway bridge over the River Conwy, both designed and built by Robert Stephenson between 1846 and 1850. In the case of the Britannia Bridge this technology allowed a bridge 1511-ft long to be constructed, when until then the longest wrought iron span had been 31 ft 6 inches.

Section of the original wrought-iron tubular Britannia Bridge standing in front of the modern bridge
Enlarge
Section of the original wrought-iron tubular Britannia Bridge standing in front of the modern bridge


[edit] See also

  • Box girder bridge - a similar bridge that carries the traffic atop the box.
  • Covered bridge - a type which may employ a variety of structures but which also encloses the traffic (for the protection of the bridge)
  • Jetway - a movable bridge that carries pedestrians from a terminal to an aircraft.
  • Skyway - a bridge connecting buildings at an elevation above the ground



 This article about a specific type of bridge is a stub. You can help WikiProject Bridges by expanding it.
Retrieved from "http://en.wikipedia.org../../../t/u/b/Tubular_bridge.html"

STATIC WIKIPEDIA JUNE 2008 on wikipedia2006.classicistranieri.com

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STATIC WIKIPEDIA APRIL 2007 on wikipeda2006classicistranieri.com
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STATIC WIKIPEDIA NOVEMBER 2006 on wikipeda2006classicistranieri.com
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