Wheeling Suspension bridgeGlacier 3000 SwitzerlandWorld's first suspension bridgeGlacier 3000 cable carPeak Walk switzerlandCharles Kuonen suspension bridgeGlacier 3000 WebcamPeak Walk by TissotSuspension bridge structureSuspension bridge designsuspension bridge中文Suspension bridge cableCable-stayed bridge vs suspension bridgesuspension中文

The Suspension Bridge - Science | HowStuffWorks

文章推薦指數： 80 %
投票人數：10人

As the name implies, suspension bridges, like the Golden Gate Bridge or Brooklyn Bridge, suspend the roadway by cables, ropes or chains from ... HealthScienceHome&GardenAutoTechCultureMoneyLifestyleEntertainmentAdventureAnimalsQuizzesSubmitSearchSignupforourNewsletter!MobileNewsletterbannerclose​HowStuffWorksNewsletterMobileNewsletterchatcloseMobileNewsletterchatdotsMobileNewsletterchatdotsMobileNewsletterchatdotsMobileNewsletterchatavatarMobileNewsletterchatsubscribeHealthScienceHome&GardenAutoTechCultureMoneyLifestyleEntertainmentAdventureAnimalsQuizzes MoreMoreMoneyLifestyleEntertainmentAdventureAnimalsQuizzesPrevNEXTAdvertisementHowStuffWorksScienceEngineeringCivilEngineering HowBridgesWork PrevNEXT By:RobertLamb,MichaelMorrissey&PatrickJ.Kiger  |  Updated:Nov12,2021ShareContentonTwitterShareContentonFacebookShareContentonLinkedInShareContentonFlipboardShareContentonRedditShareContentviaEmailTheSuspensionBridge SanFrancisco'sGoldenGateBridgestandsasaclassicexampleofasuspensionbridge. GabrielleLurie/TheSanFranciscoChronicleviaGettyImagesAsthenameimplies,suspensionbridges,liketheGoldenGateBridgeorBrooklynBridge,suspendtheroadwaybycables,ropesorchainsfromtwotalltowers.Thesetowerssupportthemajorityoftheweightascompressionpushesdownonthesuspensionbridge'sdeckandthentravelsupthecables,ropesorchainstotransfercompressiontothetowers.Thetowersthendissipatethecompressiondirectlyintotheearth.Thesupportingcables,ontheotherhand,receivethebridge'stensionforces.Thesecablesrunhorizontallybetweenthetwofar-flunganchorages.Bridgeanchoragesareessentiallysolidrockormassiveconcreteblocksinwhichthebridgeisgrounded.Tensionalforcepassestotheanchoragesandintotheground.AdvertisementInadditiontothecables,almostallsuspensionbridgesfeatureasupportingtrusssystembeneaththebridgedeckcalledadecktruss.Thishelpstostiffenthedeckandreducethetendencyoftheroadwaytoswayandripple.Suspensionbridgescaneasilycrossdistancesbetween2,000and7,000feet(610and2,134meters),enablingthemtospandistancesbeyondthescopeofotherbridgedesigns.Giventhecomplexityoftheirdesignandthematerialsneededtobuildthem,however,they'reoftenthemostcostlybridgeoptionaswell.Butnoteverysuspensionbridgeisanengineeringmarvelofmodernsteel.Infact,theearliestonesweremadeoftwistedgrass.WhenSpanishconquistadorsmadetheirwayintoPeruin1532,theydiscoveredanIncanempireconnectedbyhundredsofsuspensionbridges,achievingspansofmorethan150feet(46meters)acrossdeepmountaingorges.Europe,ontheotherhand,wouldn'tseeitsfirstsuspensionbridgeuntilnearly300yearslater[source:Foer].Ofcourse,suspensionbridgesmadefromtwistedgrassdon'tlastthatlong,requiringcontinualreplacementtoensuresafetravelacrossthegap.Today,onlyonesuchbridgeremains,measuring90feet(27meters)intheAndes.What'snext?Hint:You'llhavetostay(that'sahint!)aroundtofindout.Previous1…2345678…910111213NextPage​ CiteThis! Pleasecopy/pastethefollowingtexttoproperlycitethisHowStuffWorks.comarticle:Copy RobertLamb,MichaelMorrissey&PatrickJ.Kiger "HowBridgesWork" 1April2000.HowStuffWorks.com. 4March2022 Close Print | CitationGamesCanYouSolveThisRiddle?TryOurCrosswordPuzzles!CanYouSolveThisRiddle?MoreAwesomeStuffAdvertisementAdvertisementAdvertisement

請為這篇文章評分？

延伸文章資訊