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1、西南交通大學(xué)碩士學(xué)位論文內(nèi)昆鐵路花土坡特大橋高墩大跨連續(xù)梁設(shè)計研究姓名:許志艷申請學(xué)位級別:碩士專業(yè):建筑與土木工程指導(dǎo)教師:李喬;馬庭林20070901西南交通大學(xué)碩士研究生學(xué)位論文第1l頁AbstractWiththerapiddevelopmentofexpresswayandhigh-speedrailwayinourcountry,bridgeconstructionhascomeintotheupsurgeperiodwhichhasneverappearedbefore.Insomespecialterrain,thehighpierbridgesbecome
2、indispensable.Pres仃essedconcretecontinuousbeambridgesarewidelyusedfortheiradvantages,suchaslittledeformation,goodstructuralstiffness,comfortabledriving,fewexpausionjoints,andsimplemaintenance.Soithasbeingdevelopedrapidly.Firstly,thisthesispresentsdevelopmentandcurrentsituationofcontinuousb
3、eambridgeswithhigh—piersandlong—spansathomeandabroad,thesisobjectives,researchcontents,andbriefintroductionofprojectsituationofTheHuaTuPoBridge.Then,staticanalysisofthewholebridgeisdone,andforsegmentzeroandNo.8pierwherethestressdistributionisrelativelysensitive,localanalysiswillbedone.Furt
4、hermore,itelaboratesbasicprinciplesandcalculationprocessofdynamicanalysisofbridge,andemphasizinglydiscussestheinfluenceofLateralRigidityforbridgedesign.DuringtheSeismicanalysisofHuaTuPoBridge,SpectralAnalysisandtime—historyAnalysisareadopted.TheresultsshowedthattheaseismicofHuaToPoBridgeCa
5、nmeetsthedesignrequirements.Inaddition,thisthesisgivestheresdtsofstaticanddynamicloadingtest,whichprovesthatthebridgefunctionalsituationisgoodandthereisenoughsafetystorage.Lastly,itsummarizestheachievementsoftheoreticalmethodandactualapplicationofthisthesis,anddiscussestheproblemsoffurther
6、research.KeyWords:Highpierlongspancontinuousbeambridge;Structuraldesign;Dynamiccharacteristic;Transversestiffness;Seismicanalysis西南交通大學(xué)學(xué)位論文版權(quán)使用授權(quán)書本學(xué)位論文作者完全了解學(xué)校有關(guān)保留、使用學(xué)位論文的規(guī)定,同意學(xué)校保留并向國家有關(guān)部門或機(jī)構(gòu)送交論文的復(fù)印件和電子版,允許論文被查閱和借閱。本人授權(quán)西南交通大學(xué)可以將本學(xué)位論文的全部或部分內(nèi)容編入有關(guān)數(shù)據(jù)庫進(jìn)行檢索,可以采用影印、縮印或掃描等復(fù)制手段保存和匯編本學(xué)位論文。本學(xué)位論文屬于1.
7、保密口,在——年解密后適用本授權(quán)書;2.不保密函適用本授權(quán)書。學(xué)位論文作者簽名:o午之者糾指導(dǎo)教師篷蚴一,01●一,/日期:Z'r07年12-)弓f6日日期:2J刁年IL月t6日西南交通大學(xué)碩士研究生學(xué)位論文第1頁第一章緒論弟一早z百下匕1.1國內(nèi)外研究現(xiàn)狀連續(xù)梁是一種較老的橋梁結(jié)構(gòu)體系。從國內(nèi)外己建成的鋼橋、鋼筋混凝土及預(yù)應(yīng)力混凝土連續(xù)梁橋的修建總數(shù)來看,預(yù)應(yīng)力混凝土連續(xù)梁橋已遠(yuǎn)遠(yuǎn)超過半數(shù),充分體現(xiàn)出預(yù)應(yīng)力混凝土連續(xù)梁橋的強(qiáng)大生命力。預(yù)應(yīng)力混凝土連續(xù)梁橋體系具有變形小,結(jié)構(gòu)剛度好,行車平順舒適,伸縮縫少,養(yǎng)護(hù)簡單