大跨預(yù)應(yīng)力梁橋預(yù)應(yīng)力束施工圖的CAD研究.pdf

1、武漢理工大學(xué)碩士學(xué)位論文大跨預(yù)應(yīng)力梁橋預(yù)應(yīng)力束施工圖的CAD研究姓名：周莉娜申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：結(jié)構(gòu)工程指導(dǎo)教師：何雄君2003.5.1A。bstractWiththerapiddevelopmentofhighwaysinOUrcoLmtry，bridgeconstructionhascomeintheupsUrgeperiodwhichisunknownbeforeAndamongthevarlou8bridgetypes，th

2、elongspanprestressedconcretebeambridgeiswidelyusedforitsadvantages，andthenhasbeingdevelopedrapidlyThelongspanprestressedconcretebridgehastypicalcharacteristicsinitsdesign：oneisthatitsdesigniscloselyrelatedtoconstructionm

3、ethod，andbecauseofthesystemtransferringduringitsconstructionitisdifficulttoobtainitsrationalprestressingsystemItisaffectedbymanyfactors，suchasconstructionmethod，creepsecondaryinternalforces，secondaryinternalforcescausedb

4、yexertedindeterminatestructUreandSOon；theotheriSintheWO塒ngdrawingoftheprestressingcablesNormallytherearehundredsofcablesinacontinuousbeambridge，especiallyinanindeterminatestructureAndtheshapeoftheprestressingcableiscompl

5、icated，SOithasgreatdifficultiesinitsdrawingSoitisurgenttodeveloptheCADsystemofsuchakindofbridgeBasedonsuchcharacteristicsandtheresearchesofthecountryandoutside，thispapermainlystudiesattheautomaticdistributionofprestressi

6、ngcablesofprestressedconcretebeambridgeandtheautomaticworkingdrawingofthesteelbandleSInthispaper，basedonthestudyofthegroupoftheproject，itsets印afuzzyoptimummathmodeloftheprestresseddegreeforprestressingcablesdispositionof

7、prestressedconcretecontinuousbeambridgesAndinthedrawingofthesteelbundles，thesetupofthe“prestressingcablemodel’’makesitscoUrseconvenientAnditusedsuchafiletype一一DXF，tosavethedrawingThusitmakeitfreelytoexchangedatewithAutoC

8、ADandotherapplicationsThenitgivesanexampleoftheengineeringapplicationXiangfanSiQiaoAndatlast，severalvaluableconclusionsaresummarized，someshortagesandthefutureresearchorientationarealsoputforwardatthesametimeKeywords：long