Prestressed_Concrete_Design-Metric

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1、CoverPageiPrestressedConcreteDesignPageiiThispageintentionallyleftblank.PageiiiPrestressedConcreteDesignSecondeditionM.K.HurstMSc,DIC,MICE,MIStruct.EE&FNSPONAnImprintofRoutledgeLondonandNewYorkPageivFirsteditionpublished1988byE&FNSpon,animprintofChapman&HallThiseditionpublishedintheTaylor

2、&Francise-Library,2003.Thiseditionpublished1998byE&FNSpon,animprintofRoutledge11NewFetterLane,LondonEC4P4EESimultaneouslypublishedintheUSAandCanadabyRoutledge29West35thStreet,NewYork,NY10001©1988,1998M.K.HurstAllrightsreserved.Nopartofthisbookmaybereprintedorreproducedorutilizedinanyformo

3、rbyanyelectronic,mechanical,orothermeans,nowknownorhereafterinvented,includingphotocopyingandrecording,orinanyinformationstorageorretrievalsystemwithoutpermissioninwritingfromthepublishers.BritishLibraryCataloguinginPublicationDataAcataloguerecordforthisbookisavailablefromtheBritishLibrar

4、yISBN0-203-47684-0Mastere-bookISBNISBN0-203-23654-8(OEBFormat)ISBN0419218009(PrintEdition)PagevToAliceandMauriceHurstandtomywife,JeanniePageviThispageintentionallyleftblank.PageviiContentsPrefacexiSymbolsxii1Basicprinciples11.1Introduction11.2Methodsofprestressing61.3Structuralbehaviour91

5、.4Internalequilibrium121.5Deflectedtendons161.6Integralbehaviour181.7Forcesexertedbytendons191.8Lossofprestressforce231.9Degreesofprestressing241.10Safety25Problems252Propertiesofmaterials292.1Strengthofconcrete292.2Modulusofelasticityofconcrete302.3Creepofconcrete322.4Shrinkageofconcrete

6、322.5Lightweightconcrete342.6Steelforprestressing342.7Relaxationofsteel362.8Stress-straincurvesforsteel372.9Corrosionofsteel403Limitstatedesign423.1Introduction423.2Limitstates423.3Characteristicloadsandstrengths44Pageviii3.4Partialfactorsofsafety463.5Stress-straincurves483.6Loadingcases4

7、93.7Allowablestresses513.8Fireresistance513.9Fatigue533.10Durability543.11Vibration554Lossofprestressforce574.1Introduction574.2Elasticshortening584.3Friction614.4Anchoragedraw-in674.5Variationofinitialprestressforcealongamember674.6Long-termlosses704.7Totalprestres