預(yù)應(yīng)力錨具受力過程的有限元分析及錨圈的尺寸和材料優(yōu)化

1、分類號：I_Z5Z!密級：——單位代碼：]Q3Q學(xué)號033393358324侖肥工于大警HefeiUniversityofTechnology碩士學(xué)位論文MASTERDISSERTATIoN論文題目：預(yù)應(yīng)力錨具受力過程的有限元分析及錨圈的尺寸和材料優(yōu)化學(xué)位類別：堂要警豐學(xué)科專業(yè)：(工程領(lǐng)域)翌型塑壬壬磐作者姓名：李桂蘭導(dǎo)師姓名：完成時(shí)間：陳文琳副教授2006年4月FEAofprestressedanchordeviceunderstre

2、ssanddimensionandmaterialoptimumofanchorheadAbstractAnchoragedeviceisthekeypartfortheeffectivetransferofpre—stressWithpre—stressedtechniquewidelyusedinbridgeconstruction，architectureandhydraulicengineering，etc，greatatten

3、tionispaidtothemosteconomicdimensionandmaterialcost，underthesafetyofanchoragedeviceAtpresent，conventionaldesignkeeptheprinciplethatbiggerdimensionissafeAnduntilnow)notheoreticalformulacanbeusedtocalculatethestressandstra

4、inoftheanchorringbecauseofitscomplexityBasedonthestructureandworkingconditionoftheanchoragedevice，geometriesoftheanchorhead，intermediateplateandprestresswireweresimplifiedhereandlinearhardeningelastic—plasticmodelwasused

5、Afterfrictioncoefficientwasset，the7holeanchoragedeviceunderstresswasanalyzedbyusingFESOftwareTakingaccountofsteeldimensionsandmachiningrequirement，thediameteroftheanchorheadwassetto135mmand126mm，respectivelyComparingthes

6、imulationresultsofthesalTlediameteranchorhead，theoptimumheightoftheanchorheadwasobtainedThentheoptimumofmaterialwasfollowedBycomparingthesimulationresultsoftwokindsofmaterialsundertheirdifferentstates，modifiedtreatmentof

7、45steelcarlsubstitute40CrteducethematerialcostAtlast，anexperimentalverificationwascarriedoutTheexperimentalresultsandthesimulationresultsarecoincidentwell，whichprovesthenumericalmodeloftheanchorheaddevelopedinthispaperis

8、applicableforthepracticalanalysisoftheanchorheadThroughthisresearch，theresultsobtainedcanbeusedforthedesignoftheanchorheadandtheselectionofmateria】Keywords：anchoragedevice，F(xiàn)EM，analysisunderstress，numericalmodel，optimumof