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《預(yù)應(yīng)力混凝土梁拱組合橋 畢業(yè)設(shè)計(jì)計(jì)算書(shū)》由會(huì)員上傳分享，免費(fèi)在線(xiàn)閱讀，更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫(kù)。
1、湖南科技大學(xué)橋梁工程畢業(yè)設(shè)計(jì)（論文）摘要本設(shè)計(jì)為如海河橋主橋上部結(jié)構(gòu),本橋主跨度是33m+55m+33m，主梁截面為單箱三室，拱肋為鋼管混凝土結(jié)構(gòu)，吊桿為柔性吊桿。懸臂橋施工方法用平衡懸臂施工，拱肋鋼管采用分段吊裝方式施工。設(shè)計(jì)荷載為公路-Ⅰ級(jí)，設(shè)計(jì)抗震烈度7度。主橋上部結(jié)構(gòu)計(jì)算按施工階段采用“橋梁博士V3.0”進(jìn)行計(jì)算，結(jié)合工程實(shí)際情況，施工計(jì)算共分了39個(gè)受力階段。設(shè)計(jì)中主橋按先邊跨合攏，然后中跨合攏的順序考慮，合攏溫度嚴(yán)格控制在15~16℃。擬定主梁縱、橫斷面尺寸；采用橋梁博士結(jié)構(gòu)設(shè)計(jì)程序計(jì)算施工階段和成橋后的主梁各控制截面的恒載內(nèi)力、活載內(nèi)力、溫度內(nèi)力及基礎(chǔ)沉
2、降引起的內(nèi)力，分別按承載能力極限狀態(tài)和正常使用極限狀態(tài)進(jìn)行荷載效應(yīng)組合；估算預(yù)應(yīng)力鋼束數(shù)量并確定束數(shù)；布置鋼束位置；對(duì)各控制截面進(jìn)行強(qiáng)度、應(yīng)力驗(yàn)算，各項(xiàng)驗(yàn)算均滿(mǎn)足《公路鋼筋混凝土及預(yù)應(yīng)力混凝土橋涵設(shè)計(jì)規(guī)范》要求。關(guān)鍵詞：預(yù)應(yīng)力混凝土梁拱組合橋；懸臂澆注施工；分段吊裝施工；吊桿；作用效應(yīng)組合；橋梁博士；AbstractThedesignisfortheRu-Hai-Hebridgetopsidestructurethespanofwhichis33m+55m+33m.andthesectionissingleboxgirdercross-sectionofthreero
3、oms,ribofsteelconcretestructure,flexibleboom.ThecantileverbridgeusethemethodofBalancedCantileverconstruction,Archsteelconstructionwithsub-liftingmeans.Asaresultofthedesignloadforone,weusesevenforsecurity.Calculationofthemainbridgestructureusedbytheconstructionphase,"Dr.BridgesV3.0"calcu
4、lated,combinedwiththeactualsituationintheproject,constructionofthecalculationisdividedinto39bythepowerstage.Thedesignofthebridgebythefirstsideofthemaincross-fold,aftertheliftingoftheinterimanchor,thelastinordertoconsidercross-fold,closeuptostrictlycontrolthetemperatureinthe15~16℃.Thedev
5、elopmentofthemainlongitudinalbeams,cross-sectionalsize;theuseofthestructuraldesignofthebridge,Dr.calculatedintotheconstructionphaseandafterthebridgegirdercross-sectionofthecontrolofinternalforcesofthedeadload,liveloadinternalforces,temperature,andthebasisforthesettlementofinternalforces
6、causedbyinternalforces,respectively,accordingtocarryingcapacitylimitstateandserviceabilitylimitstateloadcombinationeffects;toestimatethenumberofpre-stressedbeamofsteelandtodeterminethenumberofbeam;layoutsteelbeamposition;cross-sectionofthecontrolstrength,stresscheck,thecheckaretomeetthe
7、"HighwayofreinforcedconcreteandprestressedConcreteBridgeDesignCode"requirements.Keywords:Prestressedconcretebeamarchcombinationbridge;cantileverconstructionpouring;BreakErection;Tensioning;portfolioeffect;BridgeDr.Q765978417目錄第一章前言1第二章概述22.1設(shè)計(jì)依據(jù)及標(biāo)準(zhǔn)22.1.1設(shè)計(jì)標(biāo)準(zhǔn)22.1.2主要材料32.1.3橋面鋪裝
