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1、ThermalStressAnalysisofAHydraulicPrestressed[Abstract]LargescaleaqueductisadoptedasaoptionalplanforthecrossingyellowriverstructureoftheprojectoftransferringwaterfromtheSouthtotheNorth.Prestressedreinforcedconcretestructureisthebestchoice.Thedesignedaqueductspanis50m.Self-weightoftheupperpartofthes
2、tructureforonespanis15.93MN,andcorrespondingweightofthewaterinonespanis19.85MN.Thestressineverypartofthestructurevarieslargely.Astheprojectislocatedintheareathathaslargetemperaturevariation,thethermalstressproducedinthestructurebythevariationofthesurroundingtemperatureisabigproblem.Inthispaper,the
3、thermalstressintheaqueductisstudiedforallpossibleconditions,andsuggestionstoguaranteethesafetyoftheaqueductunderpossiblelargetemperaturevariationismade.[Keyword]hydraulicaqueduct；prestressedreinforcedconcrete；thermalstress；1prefaceSouth-NorthWaterDiversioncentrelinewearHuangaqueductengineeringdesi
4、gnadoptonepairoftroughstopasswater,thetopstructureoftheaqueductselectstheUaqueductforuse,itis4mtocrosswatersectioninteriorradiusofunderpartsemicircle,thetopofthesemicircletroughisthestraightwallandwingreasonboard,design5.13mofdepthofwater,theclearwidth8moftheaqueductinthetrough.Theminimumthickmidd
5、lepartofwallofsectionis0.35m,thetipis0.5m,is0.85mthatthepositionpartofthebaseplateisthickennedinstepping,thick1.35moftip.Thetroughcarriessection0.5m*0.5mofthecrossbeam,interval5m.Tall7.45moftrough,singletotalwide9moftrough,horizontaltotalwide19mofpairoftroughs,troughminimumandnetfrom1m.Thetopgrade
6、ofintensityofstructureconcreteisC50.Moundcaplevelmeasurementis19.0m*5.0m,thickness2.8m.Moundcaphavehorizontalantidetonationblocklumpandcushionstone,horizontaltoblockpieceassigninbothsides,moundofcap.CombiningtheUaqueducttipstructurepattern,blockoneandadopttheladder-shapedsection,theheightis1.10m;I
7、tisthecylindricaltroughmoundof2.8mthatthebodyofmoundofbothsidesoftheaqueductadopts2piecesofdiameter,adopttheroundmoundofshapeentityofendinthemiddle,theradius1.4mofverybeginningofmound,high5.14m-9.93m,thedistancei
