大跨度鋼管混凝土拱橋施工方法的研究

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1、重慶交通學(xué)院碩士學(xué)位論文大跨度鋼管混凝土拱橋施工方法的研究姓名：肖軍良申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：橋梁與隧道工程指導(dǎo)教師：顧安邦2003.3.28暈慶交通學(xué)院壩l’論艾人跨J塹鍆管混I疑l：拱橋施I‘廳}Ji的研究摘要本文以正在施工中的世界最人跨徑的鋼管混凝土拱橋一一巫峽長(zhǎng)江人橋(1-孔460m)的科研項(xiàng)目為背景，置要進(jìn)行了無支架纜索吊裝斜拉扣掛施工力‘法、塔架扣架一體化的施工技術(shù)V,J

2、¨塔架合‘fl!；l瘦令性以及合理性。Jl：展了動(dòng)態(tài)調(diào)索法和預(yù)榆I荔11e控制法的應(yīng)川Ii：If究?！睂?duì)洲索次數(shù)oj辦法限制以及壩抬他難以精確計(jì)算的難趔．拋?了扣索動(dòng)態(tài)調(diào)索法和顱抬I留蟹控制法暇介應(yīng)用。并將最優(yōu)化計(jì)算理淪引入到拱橋拱肋的吊裝汁算·hI采剛～骱分析法米確定拱橋的合理施工狀態(tài)，求H5各施：I：階段的扣索索力和ItJtJlJJm裝商度，模擬鋼符拱肋的拼漱過稅。關(guān)鍵詞；鋼管砼女醑f施：I：岔≤纜索吊≥r名力j，Ⅵ廠斜拉{罰It磊關(guān)鍵詞；鋼管砼撰僑施：L山法纜索吊裝靜力分驕斜拉{Il膏上暇慶交通學(xué)院壩_：論文人跨度鋼管混凝’1：扒橋施

3、11斤濁的州究ABSTRACTOnthebackgroundofthescientificresearchitemsaboutlong—spanconcretefilledsteeltubulararchbridge：theWuGorgeYangtzeRiverBridge(a460mspan，willbetilelongestspanCFSTarchbridgeintheworld)，whichisstillunderc00structiou，thispaperisconcentrated011theconstructionmethodo

4、fcableerectionwithdiagonalfastening"andconnecting，andtheintegratedconstructiontechnologyofcableerection”‘benttowerfastening．Byanalyzingthestrengthandstabilityoffasteningtowerwithassemblyerectiontowerattachingintheprocessofitsinstallationandthearchribs’installationandthesta

5、ticanalysisofcableerectiontower，thepaperconfirmsthatthisconstructionmethodissafeandreasonable．Thispaperstudiestheapplicationofdynamica由ustingcablesandcontrollingwithpre-evaluatedheight．Inordertosolvetheproblemofthetimesandmethodologicalrestrictofadjustingcablesforceandaccu

6、ratelycalculatingthemagnitudeofpre·evaluatedheight，thepaperintroducestheoptimizationtheoryandmethodintotilecalculationoferectingarchribsintheintegratedconstructiontechnologyofdynamicadjustingcablesandcontrollingwithpre—evaluatedheight．ThefirstorderoptimizationmethodiSusedt

7、odeterminetherationalconstructionstateofconcrete-filledsteeltubulararchbridge．Thecablesforceandprearrangedheightofarchribsduringconstructionareobtained，andtheactualconstructionprocessofarchribsinstallationissimulated．KEYWORDS：CFSTArchBridge；ConstructionMethod；CableErection

8、；StaticAnalysis；ConstructionMethodofDiagonalFasteningandConnecting第一章緒論第一章緒論1．1鋼管混凝土拱橋的發(fā)展