The vertical lift offers several benefits over other movable bridges such as the bascule and swing-span bridges. Generally speaking, they cost less to build for longer moveable spans.[1] The counterweights in a vertical lift are only required to be equal to the weight of the deck, whereas bascule bridge counterweights must weigh several times as much as the span being lifted. As a result, heavier materials can be used in the deck, and so this type of bridge is especially suited for heavy railroad use. The biggest disadvantage to the vertical-lift bridge (in comparison with many other designs) is the height restriction for vessels passing under it, due to the deck remaining suspended above the passageway.
^Wood Wortman, Sharon; Wortman, Ed (2006). The Portland Bridge Book (3rd ed.). Urban Adventure Press. p. 68. ISBN0-9787365-1-6.
Bibliographyedit
Leonardo Fernandez Troyano (2003). Bridge Engineering: A Global Perspective. Thomas Telford Publishing. ISBN978-0-7277-3215-6.
External linksedit
Media related to Vertical-lift bridges at Wikimedia Commons
April 26, 2024
vertical, lift, bridge, confused, with, table, bridge, vertical, lift, bridge, just, lift, bridge, type, movable, bridge, which, span, rises, vertically, while, remaining, parallel, with, deck, animation, showing, vertical, lift, bridge, operates, with, vehicu. Not to be confused with Table bridge A vertical lift bridge or just lift bridge is a type of movable bridge in which a span rises vertically while remaining parallel with the deck Vertical lift bridgeAn animation showing how a vertical lift bridge operates with vehicular and shipping trafficAncestorTruss bridgeRelatedBascule bridge swing bridge folding bridge retractable bridgeDescendantSubmersible bridge table bridgeCarriesAutomobile pedestrians truck light rail heavy railSpan rangeShortMaterialSteelMovableYesDesign effortmediumFalsework requiredDepends upon degree of prefabrication The vertical lift offers several benefits over other movable bridges such as the bascule and swing span bridges Generally speaking they cost less to build for longer moveable spans 1 The counterweights in a vertical lift are only required to be equal to the weight of the deck whereas bascule bridge counterweights must weigh several times as much as the span being lifted As a result heavier materials can be used in the deck and so this type of bridge is especially suited for heavy railroad use The biggest disadvantage to the vertical lift bridge in comparison with many other designs is the height restriction for vessels passing under it due to the deck remaining suspended above the passageway Most vertical lift bridges use towers each equipped with counterweights An example of this kind was built at La Salle in Illinois United States in 1929 and demolished in 2001 2 Another design uses balance beams to lift the deck with pivoting bascules located on the top of the lift towers 3 Contents 1 Examples 2 Gallery of images 3 See also 4 References 4 1 Bibliography 5 External linksExamples editSee List of vertical lift bridges Gallery of images edit nbsp One of the vertical lift bridges over the Gouwe River built in 1930 nbsp ASB Bridge in Kansas City Missouri nbsp Arthur Kill Vertical Lift Bridge has the longest lift span of any vertical lift bridge in the world nbsp Hawthorne Bridge in Portland Oregon U S built in 1910 the oldest vertical lift bridge in the United States 4 nbsp Clarence St Bridge in Port Colborne Ontario nbsp Guaiba Bridge which crosses Lake Guaiba in Porto Alegre Brazil nbsp A lift bridge over the Erie Canal at Lockport New York nbsp A lift bridge elevated at both ends nbsp A lift bridge near its upward position pedestrians may cross when it is raised by using stairways nbsp Small lift bridge in Nowa Sol Poland nbsp Portage Lake Lift Bridge linking Houghton MIchigan to Hancock Michigan nbsp An Sr1 locomotive pulling lumber across a lift bridge north of Kuopio railway station in FinlandSee also editMoveable bridges for a list of other movable bridge types Submersible bridge for a similar disappearing bridge Table bridge for a vertical lift bridge without visible lifting meansReferences edit Troyano 2003 p 731 Shippingsport Bridge LaSalle County Illinois www bridgehunter com accessed 1 August 2023 Troyano 2003 p 732 Wood Wortman Sharon Wortman Ed 2006 The Portland Bridge Book 3rd ed Urban Adventure Press p 68 ISBN 0 9787365 1 6 Bibliography edit Leonardo Fernandez Troyano 2003 Bridge Engineering A Global Perspective Thomas Telford Publishing ISBN 978 0 7277 3215 6 External links edit nbsp Media related to Vertical lift bridges at Wikimedia Commons Retrieved from https en wikipedia org w index php title Vertical lift bridge amp oldid 1178801358, wikipedia, wiki, book, books, library,
