犍為岷江大橋換索工程計(jì)算與分析.pdf

1、西南交通大學(xué)碩士學(xué)位論文犍為岷江大橋換索工程計(jì)算與分析姓名：劉永剛申請學(xué)位級別：碩士專業(yè)：橋梁與隧道工程指導(dǎo)教師：唐繼舜2002.6.1Abstract，。Duringrecentdecedescablestayedbridesareboominginthefieldofbridgeconstruction，howeverbecauseofantisepsisofcablesandconstructiontechniqueproblem

2、s，manyconstructedcable—stayedbridgeswillbefacedtheproblemofbeingreplacedcablessoonorlaterInthisthesis，theconstructionandmonitoringgeneralmethodofcablereplacementworkforQianweiM硒iangRivercable—stayedbridgeisintroducedfirs

3、tly，then，usinglargescalecommercialfiniteelementsanalysissoftware，AlgoraspacesolidmodelisdevelopedInordertogiveattentiontointernalforceanddeformation，thethesissimulatesthefactualsituationofthebridgebyaddingboundaryelement

4、sTheanalyzeditemsinclude：cableforces，deflections，stressofboxgirderandmaximumhorizontaldeformationoftowerunderdifferentcablereplacementcases，whichCanbeusedtotutordesignandconstructionforothersimilarworks，Asaresult，whileso

5、mestayed—cablesarereleased，thecableforcesofremainingandneighboring2or3groupsincreaseremarkablybuttheothersdonot，thebax—girderputsupthecharacteristicofbiggishstiffnesswhichstressvarietyisn’tmarked。Inordertoascertainthecha

6、racterofcablereplacedbridge，inaddition，thethesiscalculatesmodeshapesandnaturalfrequenciesofthebridgeusingAlgorsoftwareandestimatestheresultofdynamic10adtestandcalculationindetails，Thisthesiswillaccumulatemoreexperimentsf