高速鐵路雙線整孔簡支箱梁的預(yù)制和安裝

1、西南交通大學(xué)碩士學(xué)位論文高速鐵路雙線整孔簡支箱梁的預(yù)制和安裝姓名：劉志遠(yuǎn)申請學(xué)位級別：碩士專業(yè)：建筑與土木工程指導(dǎo)教師：程謙恭許東坤20051101西南交通大學(xué)碩士研究生學(xué)位論文第1I頁AbstractThemaximumspeedofhighspeedrailroadinChinawillreach200km／h，therailonbridgeisrequiredtObeverystraightandsteadySOastosafel

2、yrunatrainandprovidecomfortforpassengersAbeamasthebaseofrailmusthavestrongstrength，rigidity，smallsubsequentcreepcamber，andexcellentdurabilityaswellasrapidinconstructionSoposttensionedpre—stressedconcreteboxbeamsarewidely

3、usedandprecastinsituPrecastboxbeamsareinstalledbybridgeerectorsPrecastboxbeamsarerarelylarge—scaleusedinrailwaybridgeconstructioninChinaSowearelackofexperienceindoinglarge—scaleprecastingWiththeexpoundingofdesignandmakeo

4、fdoubletrackboxbeammolds(span：24m)，pouring，vibratingofconcrete，temperatureofheatofhydration，pre—stressingmethod，resultofconcretestress，aswellasquanlitycontrolmethod，andinstallationofdoubletracksimplysupportedandmonolithi

5、cboxbeams，WCprovidedtheprovenexperienceforlargescaleuseofprestressedconcretesimply—supportedbeamsinhigh—speedrailroadinChinakeyw。rds：high—speedrailroad；prestress∥0c。ncrete；m。n。lithicb。xbeams；precasting；installationtechni