钢箱系杆拱桥施工过程仿真分析与梁拱结合部位应力分析

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1、西南交通大学硕士研究生学位论文第1I页AbstractBasedonatheoreticalstudyandsimulationanalysisofafour-lanethroughsteelboxtied-archbridgeofShanghai·Beijinghigh-speedra【ilwaMandcombiningcloselywithconstructionpractice，simulationanalysisoftheconstructionofthesteelboxtied·archbridge

2、hasbeenaccomplishedinthispaper．Thefocusoftheresearchandthemainachievementsobtainedareasfollows：1、ThesimulationanalysisofthewholeprocessofthetrestleconstructionmethodaccordingtOthedesigndocumentsandtheactualsituationoftheconstructionfieldhasbeengiveneffectiv

3、eguidancetOtheconstructioninfield．Basedontheanalysisofthemechanicsbehavioroftheerectionprocess，someproposalsandmeasuresaboutthecriticalstagesoftheconstructioncontrolarepresented．2、Achievementsofsystemengineeringandcontroltheoryinlarge·scalebridgeconstructio

4、narefullyemployedinordertOmakingacomprehensiveanalysisandcomparisonbetweenmeasuredvaluesandtheoreticalresultsofstressandgeometricshape，whichlayafoundationforafurtherresearchOHthekeyconstructiontechnologyoftherailwaysteelboxtied-archbridge．3、Combinedwiththet

5、heoreticalsimulationanalysis，themonitoringdataoftheentirealignmentandstressaswellastheresultsoftheaccuracyanalysis，someresearchandsummarizeontrestleconstructiontechnologyforthefour-lanethroughsteelboxtied·archbridgearepresented．4、AresearchOntheoreticalsimul

6、ationandcontroltechnologyisappliedtOthespecialanddifficultcriticaltechnologyduringconstruction，includinginternalfocusofbars，linearadjustmentmethodsandtechnologies，reasonablemeasuresoftheremovalofflamesforconstructionofthethroughsteelboxtied-archbridgeandthe

7、temperatureeffectoftheprocessoflayingfour-track．5、Thestressanalysisofthejointsiteofbeamandarchisproposed，themechanicalbehavioroftheplatestructureatthearchfootunderthemostunfavorableloadcombinationisstudiedtoprovideevidenceforthedesignofthearchfootofthesteel

8、—archcompositestructureinthefuture．TheresultsinthisPaperCanprovideareferenceforthehigh·speedrailwaybridge、析ttlsimilarconstructionmethodandthelayingmethodoftheslabtrackofbridges．Keywords：steelboxtied-ar