大跨鋼桁斜拉施工過程中的線形控制分析.pdf

1、北京交通大學(xué)碩士學(xué)位論文大跨鋼桁斜拉施工過程中的線形控制分析姓名：邵亞騰申請學(xué)位級別：碩士專業(yè)：建筑與土木工程指導(dǎo)教師：季文玉201206ABSTRACT一————————————————————————————————————————————一ABSTRACTABSTRACT：Astherapiddevelopmentoftheconstructionofhlgh—speedrailwav(HS鼬inourcount以theneedo

2、flongspanbridgeintheconstructionofHSR幫owswitheachpassingdayModemcable—stayedbfidgeswhichhasbeautifulshape，largespanningabili壩lessconstmctioninter=ference，900dmechanlcalpropertlesandDe彘cteconomicindicator，are謝delyusedinhi

3、曲waybridgesButinrallwayespeciallyHsRbridges，therearestrictlimitsoncontrolofthelineshapemordertomeetmedemandofmevehiclesmoothnessSoweneedtotakenecessa叮measurestocontrolmelineshapeinconstructionstageinordertoguaranteethesm

4、oothnessotvehicleinOperatlngstageThismesisfocus衄thelineshapepredictionandcontrollinganalysisonlong’spanSteel一如sscable—stayedbridgeinconstmctionstageIttakesaHSRlongspansteeItms8cablestayedbridge’sconstmctionstageasback伊ou

5、nd，obtainsltsmomtonngdata；FirstlVANSYSisusedtobuildafinitemodeltosimulaterealsituatlon，modltytnemodel，sparametersbyusingthemethodofsensitiVityanaIyslsandparameteridentificationinordertogetcorrectlineshapedatawhicharesiml

6、larteal0nesSecondIVtheobtainedmonitoringdataareusedtOcreatelineshapepredlctlonmodellnconstmctionstagebyusingtheoryof鏟eysystemmodeling，thenweusethemodeltopredictassemblingelevationinconStmctionstageAtlast，bycompanngwlthth

7、emeoreticalelevationvalues，1ineshapeadjustingValuescanbeconflnnedandused1nbridge，sconstmctionbysomemethodsW岫c“cul撕onandanalysis，someconcluslonsa1eobtainedasf0llows：(1)Bypar鋤eteridentincationinfinitemodel，equiValentmodulu

8、sof。elastlcltywhichiscorrespondingt0realoneis0btained，thereSult0flineshapecalculatedbymodifiedmodelissimilartealdataThebiggesteHDrinmainspan’sconStmctlonstagests24mm(2)hparametersensibilityanalysisofmaingirder’slineshape

9、，thedesl驢edpa舢leters，influenceof1ineshapecanbe1inedfrombigtosmallascabletenslon，maln函rder，smodulusofelasticity，temporaryloadonsomeconstructionstages，selt‘welgntofpresSuredbridgedeckaIldselfweightofmaintoWerAndtheinfluenc