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《預(yù)應(yīng)力混凝土箱梁橋豎向預(yù)應(yīng)力損失的研究》由會員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫。
1、長沙理工大學(xué)碩士學(xué)位論文預(yù)應(yīng)力混凝土箱梁橋豎向預(yù)應(yīng)力損失的研究姓名：林鳴申請學(xué)位級別：碩士專業(yè)：橋梁與隧道工程指導(dǎo)教師：顏東煌20070501abstractWiththedeVelopment0fsciencetechnologyandtrafficenterpfise，Theprestfessedconcrete(PC)boxgirderbridgesridgehasbeengrowinguprapidlyintherecentyearswithit’suniquepredOminanceOfhandycOnstruction，economicalcost，ReasOnableinte
2、rnalforceandcomfortabletraVeling．H0weVer，numerousinVestigationsindicatethattherepresentatiVecracks，especiallyskewcracksdeVelopinthebridgeweb．TheskewcrackshaVeeffectontheappearance，bearingcapacity，serVicelifeofthebridgeandeVenthetrafficsafety．Thecausesofskewcracksinwebafemultiple．ThelOsses0fVertica
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5、medinthisdissertation．TheanalysisindicatedthatthestresslossOfVerticalprestresscausedbydeformatiOnofanchorage，theresilienceofthetendonandthejointcompression(o’2)isthelargestreasonofallandalsothehardesttocontrol；Theelasticcompressionoftheconcrete(q4)ismoresmall．ThisthesissimulatedtheprocessOfthecons
6、tuctionthroughestablishingthelocalthressdimentiOnalmOdel，andcombinedsomemethod0ftheelasticitymechanicstoadVancethesimplifiedcalculationexpfessiOnforelasticcompressiVe10ssOfVerticalprestressedreinforcement．．Ibwordthelossoftheconcreteshrinkageandcreepq6．ThispapermakeuseofthesOftwareANSYSwhichoffcred
7、bytheAPDLt0setuptheloc4lmOdelOfthegirdefbeammodel，andisappliedthecreepOfthepfogramt0carryonthecalculationOfconcreteshrinkageandcreepOfthegifderbeammodel．Onthebase0fthecalculatingresults，thestr皇ssintheⅡboxgirderwe
