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ID:39402247
大小:240.00 KB
页数:74页
时间:2019-07-02
《基于几何控制法的结合梁斜拉桥主梁制造线形控制》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、西南交通大学硕士学位论文基于几何控制法的结合梁斜拉桥主梁制造线形控制姓名:贾栋申请学位级别:硕士专业:桥梁与隧道工程指导教师:卜一之20090201西南交通大学硕士研究生学位论文第1I页AbstractGeometricControlMethodhasmanyadvantages,SOitsapplic—ationismoreandmorewidelyinthecable—-stayedbridgeconstructioncontr01.Thegirderfabricationerroranalysisdataareessentialparametersintheproce
2、ssofgirdererectionofcantileverassembledcable—stayedbridgetoapplyGeometricControlMethod,SOthestudiesongirderfabricationprofilecalculationmethodsandfabricationerroranalysismethodshavebecomeimportantinthecable—-stayedbridgeconstructioncontr01.ThebasictheoriesofGeometricControlMethodareintrodu
3、ced,andgirderfabricationprofilecalculationmethodsandfabricationerroranalysismethodsofcompositecable-stayedbridgearestudiedbasedontheconstructioncontroloftheGuanyinyanBridge.ThebasicpointofGeometricControlMethodis:aslongasthefreelengthandfreeprofileofeachcomponentsinthecable——stayedbridgest
4、ructureremainunchanged,afterthebridgeiscompleted,thefinalpatternofinternalforcesandthedisplacementthesame,inspireoftheconstructionprocessofthebridge.BasedonthiSpoint,becausetheanglebetweeneachgirdersegmentisverydifficulttoadjustduringtheconstructionofcompositecable—stayedbridge,howtoobtain
5、anaccuratefabricationprofilehasbecomeveryimportant.TherelationshipbetweenZeroInitialDisplacementMethodandTangentialInitialDisplacementMethodarestudiedandtwocalculationmethodsoffabricationpre-camberareintroduced.Thecalculationprocessoffabricationprofi1ewasalsointroduced.Inaddition,thegirder
6、fabricationerroranalysismethodsoftheGuanyinyanBridgeareintroducedandtheinfluenceoffabricationerrorofthepreviouslymanufacturedsegmentfabricationerror0n西南交通大学硕士研究生学位论文第lII页thefollow—upmanufacturedsegmentprofilearestudied.Themethodofforecastingthefinalstatethroughfabricationprofilewasalsointr
7、oduced,atthesametime,thismethodcanverifytheauthenticityoffabricationprofileandprovidereferencetothefollow——upbatchesgirderprofileadjustmentiSproved.Keywords:compositecable—stayedbridge:GeometricControlMethod:fabricationprofile:fabricationerroranalysis西南交通大学曲南父
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