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1、摘要本設計題目為賢村橋2號預應力混凝土連續(xù)梁橋,該橋位于京福高速公路泰安至曲阜段,橋梁跨徑布置為24+26+24m,雙向四車道,上部結構采用先簡支后連續(xù)的預應力混凝土連續(xù)T型梁橋。簡支轉連續(xù)是橋梁施工中較為常見的一種方法,該施工方法的主要特點是施工方法簡單可行,施工質量可靠,實現(xiàn)了橋梁施工的工廠化、標準化和裝配化。目前隨著高等公路的發(fā)展,為改善橋梁行車的舒適性,簡支轉連續(xù)梁橋在中、小跨徑的連續(xù)梁橋中得到了廣泛地應用。在設計過程中,綜合考慮了材料以及結構的強度、剛度、穩(wěn)定性,還注意到了混凝土強度以及鋼筋等級及其性能。使本橋梁設
2、計兼具簡支梁的經(jīng)濟易施工特點和連續(xù)梁的結構穩(wěn)定、受力狀態(tài)好的優(yōu)點,是值得推廣和使用的一種有效梁跨方式。本設計參閱了很多相關設計及規(guī)范,也采用了一些既有設計成果,使得設計具有一定的實踐性,同時也采用了MIDAS來計算橋梁結構內(nèi)力,節(jié)約了設計時間,設計過程中得到指導老師的悉心指導及幫助,使我的設計事半工倍,在此對設計界的前輩及指導老師表示衷心的感謝!由于設計時間倉促,加上本人經(jīng)驗有限,設計中難免會有許多不足或缺點,請大家提出寶貴意見及建議。關鍵詞:簡支轉連續(xù);預應力;MIDASIIAbstractThedesignentitle
3、dJuxianVillage,Bridge2,prestressedconcretecontinuousgirderbridge,thebridgeislocatedinJingfuExpresswayTai'antoQufusection,bridgespanarrangementforthe24+26+24m,two-wayfour-lane,theupperstructurewithsimplysupportedContinuousprestressedconcretecontinuousT-beambridge.Si
4、mplysupportedcontinuousconstructionofthebridgeamorecommonmethodofconstruction,themainfeaturesoftheconstructionmethodissimpleandfeasible,theconstructionquality,thefactoryrealizedthebridgeconstruction,andassemblyofstandardization.Withthecurrenthighroadofdevelopment,t
5、oimprovethedrivingcomfortofthebridge,simplysupportedcontinuousbeambridgeinthesmallspancontinuousbridgehasbeenwidelyapplied.Inthedesignprocess,consideringthematerialandstructuralstrength,stiffness,stability,andalsonotedthestrengthofreinforcedconcreteanditsperformanc
6、elevels.Sothatboththesimplebeambridgedesignandeasyconstructionoftheeconomiccharacteristicsandthecontinuousbeamstructuralstability,goodmechanicaladvantageofthestate,isworthyofpromotionanduseofaneffectivecross-beammethod.Seealotofthedesignspecificationsrelatedtodesig
7、nandalsousedsomeexistingdesignresults,makingthedesignhassomepractical,butalsousedtocalculatethebridgestructureMIDASinternalforces,savingdesigntime,thedesignprocessbyguidingtheteacherCarefulguidanceandhelptomakemydesignworkhalfthetimesinthedesignoftheoldergeneration
8、andtoexpressmysincerethankstotheinstructor!Becauseofthedesigntimeconstraints,coupledwithmylimitedexperience,inevitably,therearemanydeficienciesin