簡(jiǎn)介：ATHESISSUBMITTEDTOZHENGZHOUUNIVERSITYFORTHEDEGREEOFMASTERRISKIDENTIFICATIONTECHNIQUESINCONSTRUCTIONPERIODOFMAJORBRIDGEANDTHESTUDYONRISKHANDLINGBYYANXINXUESUPERVISORPROFQINGFULIDRPENGZHANGHYDRAULICSTRUCTUREENGINEERINGSCHOOLOFWATERCONSERVANCYANDENVIRONMENTAPRIL2011摘要摘要橋梁工程的施工與經(jīng)濟(jì)、技術(shù)、組織、管理等各方面都有密切的關(guān)系，這決定了在施工期間，項(xiàng)目將面臨諸多的不確定性因素的影響。這些不確定性如果不能得到有效的識(shí)別、積極的預(yù)防或處理，將會(huì)導(dǎo)致巨大的損失。本文以大型橋梁施工期為主要研究對(duì)象，圍繞施工期風(fēng)險(xiǎn)問題展開了研究和討論1大型橋梁施工期風(fēng)險(xiǎn)識(shí)別研究。闡述了大型橋梁施工風(fēng)險(xiǎn)識(shí)別的基本原理和基本過程，針對(duì)橋梁施工風(fēng)險(xiǎn)因素層次多且相互關(guān)系錯(cuò)綜復(fù)雜的特點(diǎn)，結(jié)合我國(guó)目前橋梁施工事故統(tǒng)計(jì)資料較為匱乏且目前尚未建立系統(tǒng)的風(fēng)險(xiǎn)源數(shù)據(jù)庫的現(xiàn)實(shí)情況，本文提出了因素風(fēng)險(xiǎn)模糊層次分析法。這種方法較定性方法更準(zhǔn)確，更具說服力；較完全的定量方法，則有簡(jiǎn)單實(shí)用的優(yōu)勢(shì)，經(jīng)驗(yàn)證是一種較為理想的風(fēng)險(xiǎn)識(shí)別方法。2大型橋梁施工期風(fēng)險(xiǎn)等級(jí)評(píng)價(jià)標(biāo)準(zhǔn)的研究。風(fēng)險(xiǎn)等級(jí)的確立對(duì)風(fēng)險(xiǎn)評(píng)價(jià)工作有著十分重要的意義，本文在參考大量國(guó)內(nèi)外文獻(xiàn)、規(guī)范基礎(chǔ)上，初步建議了企業(yè)風(fēng)險(xiǎn)等級(jí)評(píng)價(jià)標(biāo)準(zhǔn)、社會(huì)風(fēng)險(xiǎn)等級(jí)評(píng)價(jià)標(biāo)準(zhǔn)、環(huán)境風(fēng)險(xiǎn)等級(jí)評(píng)價(jià)標(biāo)準(zhǔn)，以期對(duì)目前的橋梁施工期風(fēng)險(xiǎn)評(píng)價(jià)提供支持，并對(duì)今后風(fēng)險(xiǎn)等級(jí)的評(píng)價(jià)標(biāo)準(zhǔn)研究提供參考。3對(duì)風(fēng)險(xiǎn)分析方法不確定性的研究。目前的風(fēng)險(xiǎn)分析理論在橋梁上的應(yīng)用存在不少問題，這就導(dǎo)致本來是用來研究橋梁施工期不確定性的風(fēng)險(xiǎn)分析自身也存在不確定性因素，本文對(duì)這個(gè)問題進(jìn)行了探討并提出了一些消除或降低風(fēng)險(xiǎn)分析過程中不確定因素的方法。4風(fēng)險(xiǎn)應(yīng)對(duì)措施的研究。本文基于風(fēng)險(xiǎn)因素的多維特性，提出了運(yùn)用層次分析法來解決風(fēng)險(xiǎn)應(yīng)對(duì)措施優(yōu)先級(jí)問題。關(guān)鍵詞大型橋梁；施工期風(fēng)險(xiǎn)識(shí)別因素風(fēng)險(xiǎn)模糊層次分析法；風(fēng)險(xiǎn)等級(jí)評(píng)價(jià)標(biāo)準(zhǔn)；風(fēng)險(xiǎn)分析不確定性；風(fēng)險(xiǎn)應(yīng)對(duì)

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簡(jiǎn)介：分類號(hào)了U．7L密級(jí)單位代碼10422學(xué)號(hào)∞夠D3／0上馬⑧厶茹只孥夕▲奢／7守碩士學(xué)位論文SHANDONGUNIVERSITYMASTERSTHESIS論文題目§Z么勻大型椿綻Z覃呈．絕Z玖盟國(guó)，南、枷鋸萬姐奠世憊控釗酉唬A．【V鼬T／秒N汐渺?！凹≈菝唇匈输z，‰№卿Y三厶儼良咖砧玖加崢≠作者磁絲專業(yè)羔盟醴導(dǎo)師盈縫歪逸撿‘合作導(dǎo)師沙氏年羅月0F日●■■原創(chuàng)性聲明本人鄭重聲明所呈交的學(xué)位論文，是本人在導(dǎo)師的指導(dǎo)下，獨(dú)立進(jìn)行研究所取得的成果。除文中已經(jīng)注明引用的內(nèi)容外，本論文不包含任何其他個(gè)人或集體已經(jīng)發(fā)表或撰寫過的科研成果。對(duì)本文的研究作出重要貢獻(xiàn)的個(gè)人和集體，均已在文中以明確方式標(biāo)明。本聲明的法律責(zé)任由本人承擔(dān)。論文作者簽名至』邈ET期絲厶￡筮關(guān)于學(xué)位論文使用授權(quán)的聲明本人完全了解山東大學(xué)有關(guān)保留、使用學(xué)位論文的規(guī)定，同意學(xué)校保留或向國(guó)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)山東大學(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、縮印或其他復(fù)制手段保存論文和匯編本學(xué)位論文。保密論文在解密后應(yīng)遵守此規(guī)定論文作者簽名至必導(dǎo)師簽名燁EL期竺生堡

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簡(jiǎn)介：分類號(hào)坐絲Z密級(jí)坌玨O單位代碼Q魚璺學(xué)號(hào)星12Q盟塑壘墨廑交迫丈摯專業(yè)碩士學(xué)位論文BIM技術(shù)在橋梁工程運(yùn)營(yíng)階段的應(yīng)用研究申請(qǐng)專業(yè)學(xué)位類別王猩亟學(xué)位授予單位塾童通太堂論文提交日期2Q墨生壘旦】魚旦專業(yè)領(lǐng)域名稱建煎皇查王猩論文答辯日期至Q】墨生魚旦壘旦2015年6月5日重慶交通大學(xué)學(xué)位論文原創(chuàng)性聲明本人鄭重聲明所呈交的學(xué)位論文，是本人在導(dǎo)師的指導(dǎo)下，獨(dú)立進(jìn)行研究工作所取得的成果。除文中已經(jīng)注明引用的內(nèi)容外，本論文不包含任何其他個(gè)人或集體已經(jīng)發(fā)表或撰寫過的作品成果。對(duì)本文的研究做出重要貢獻(xiàn)的個(gè)人和集體，均己在文中以明確方式標(biāo)明。本人完全意識(shí)到本聲明的法律結(jié)果由本人承擔(dān)。學(xué)位論文作者簽名日期砂莎年≤月加日重慶交通大學(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(guó)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)重慶交通大學(xué)可以將本學(xué)位論文的全部?jī)?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。同時(shí)授權(quán)中國(guó)科學(xué)技術(shù)信息研究所將本人學(xué)位論文收錄到中國(guó)學(xué)位論文全文數(shù)據(jù)庫，并進(jìn)行信息服務(wù)包括但不限于匯編、復(fù)制、發(fā)行、信息網(wǎng)絡(luò)傳播等，同時(shí)本人保留在其他媒體發(fā)表論文的權(quán)利。學(xué)位論文作者簽名7簍名京日期伽籮年么月幻日指導(dǎo)教師簽名辦出、肷日期6TJ年6月【O日本人同意將本學(xué)位論文提交至中國(guó)學(xué)術(shù)期刊光盤版電子雜志社CNKI系列數(shù)據(jù)庫中全文發(fā)布，并按中國(guó)優(yōu)秀博碩士學(xué)位論文全文數(shù)據(jù)庫出版章程規(guī)定享受相關(guān)權(quán)益。學(xué)位論文作者簽名孑參髫密日期修F歹年‘月FD日指導(dǎo)教師簽名石；Q出聲L日期▲O叮年6月／D目

簡(jiǎn)介：同濟(jì)大學(xué)土木工程學(xué)院碩士學(xué)位論文橋梁加固技術(shù)在深圳立交橋維修工程中的應(yīng)用研究姓名簡(jiǎn)亮申請(qǐng)學(xué)位級(jí)別碩士專業(yè)建筑與土木工程指導(dǎo)教師屈文俊鄒昌瑰20081101ABSTRACTABSTRACTATPRESENT，THEOLDBRIDGEREINFORCEMENTTECHNOLOGYRESEARCHANDAPPLICATIONINOURCOUNTRYANDEX，ELLAROUNDTHEWORLDAREINTHEASCENDANTHO、、’EX7ERTHEBRIDGE1。PEDIX7ERSITYTHECOMPLEXITYOFTHEDISEASEATHOMEANDABROADTHATHAX，ENOTYETUNIFIEDNOFRRLSTOFOLLOWTHEREFIREALLKINDSOFSTRENGTHENINGITSADVANCEDTECLMOLOY，BUTALSOHASITSOWNLIMITATIONSREINFORCEMENTTECHNOLOGYTODIX，ERSIFYITSHELPTOSTANDARDIZEANDDEVELOPINTHEDIRECTIONOFTHETHEORYRESEARCHONTHEBRIDGEREPAIRANDREINFORCEMENTTECHNOLOGYISAWORKOFGREATSIGNIFICANCENOTONLYTOINCREASETHEUSEFULNESSOFTHEBRIDGE，BUTALSOTOSAVEINX’ESTMENTANDRECEIVEDGOODSOCIALANDECONOMICBENEFITSASARESULTTHEOLDBRIDGEREINTBRCEMENTHASBROADAPPLICATIONPROSPECTSFORFARREACHINGANDPRACTICALSIGNIFICANCEINTHISPAPERIENGAGEDINTHEMAINTENANCEOFTHEBRIDGE，COMBINEDWITHASTRENGTHENINGOFTHEOVERPASSJABRIDGEMAINTENANCEANDREINFORCEMENTTHEORYOFACOMPREHENSIVESUMMARYOFTHEANALYSIS，WITHAVIEWTOGUIDINGTHESHENZHENBRIDGEMAINTENANCEWORKTHEPAPERSFROMTHEBRIDGESTRUCTUREMECHANICS，THEANALYSISREINFORCEDTHESTRENGTHENINGOFTHETECHNICALMECHANISMFORLAYINGTHETHEORETICALFOUNDATIONREINFORCEMENTTECHNOLOGYANALYSISOFCONCRETEANDTHENTHEPRESSUREOILTHEMECHANISMOFDAMAGEANDINTHETHREEWAYANALYSISOFTHECONCRETEUNDERTHEPRESSUREANDSTRESSDAMAGEANDRECOMMENDHOWTOREINFORCETILEBRIDGE。REINFORCEMENTFROMTHEPIERABUTMENT，TOTHEREINFORCEMENTOFTHEBRIDGEDECKANDCOMPAREDTHERELATIVELYCOMMONBRIDGEREINFORCEMENTTECHNOLOGY，ITSAPPLICABILITYANDECONOMYⅥRERECOMPAREDANDEVALUATEDFINALLYTHROUGHTHEDEMONSTRATIONPROJECT，COMBINEDWITHSTRENGTHENINGTHEENTREPRENEURIALROADOX，ERPASSDESIGNEDTOSLIMUPRICHSOUNDREINFORCEMENTTECHNOLOGY，THEDESIGN，CONSTRUCTIONTECHNIQUES，F(xiàn)ROMPRACTICETOPROX，ETHETECHNICALFEASIBILITYOFCONSOLIDATIONKEYWORDSBRIDGESTRENGTHENING；REINFORCEMENTMECHANISMREINFORCEDCONCRETE；CONSLRTLCLIONTECHNOLOGY

簡(jiǎn)介：大連理工大學(xué)碩士學(xué)位論文斜拉懸吊組合體系在橋梁改造工程中的應(yīng)用與研究姓名王培曉申請(qǐng)學(xué)位級(jí)別碩士專業(yè)橋梁與隧道工程指導(dǎo)教師張哲潘盛山20070620斜拉懸吊組合體系在橋粱改造工程中的應(yīng)用與研究APPLICATIONANDSTUDYOFCABLESTAYEDSUSPENSIONSYSTEMINBRIDGEALTERATIONWORKABSTRACTALONGWITHTHEDEVELOPMENTOFTHETIME，TRANSPORTATIONHASIMPROVEDCONTINUOUSLY，BEARINGVALUEOFVEHICLESHASROSE。CARSPEEDHASBEENRAISEDALOT，THEHIGHERREQUIREMENTWASPRE∞NTCDFORDRIVINGSAFETYANDCOMFORTOLDBRIDGESHASBECOMEUNSUITABLE，WHETHERTOULTIMATEBEARINGABILITYANDADAPTABILITY，ORTOTRAFFICVOLUMEANDWITHTHEDEVELOPMENTOFTIME，DISEASEOFBRIDGESMAYOCCURITSELFAFFECTTHETRAFFIC，REINFOMEMENTANDTRANSFORMATIONOFOLDBRIDGESEMERGEDREINFORCEMENT，TRANSFORMATIONANDMAINTENANCEENGINEERINGISCOMPLICATEDWORKALTERATIONMETHODCHANGESWITHTHEOLDBRIDGETYPEORADDRESSSOCIETYDEVELOPSCONTINUOUSLY，ANDBRIDGESAREBUILTCONTINUOUSLYNEWBRIDGEWILLBECOMEOLDONESEARLYORLATESEINFORCEMENTANDALTERATIONOFOLDBRIDGESWILLBECOMEPERMANENTTECHNIQUEPROBLEMITISONEOFTHEIMPORTANTPARTSANDKEYTECHNOLOGIESTOORAPIDPROGRESSOFOURCOUNTRYECONOMICCONSTRUCTIONIMPROVEDTHETRAFFICVOLUMERAPIDLYMANYCITYBRIDGESHASBECOMEFROMSMOOTHPASSINGWORK”TOTRAFFICBOTTLENECKTOIMPROVEPASSINGCAPACITYOFEXISTINGBRIDGESBYWIDENINGANDALTERATIONWORKHASBECOMEANEWTECHNIQUEPROBLEMTHROUGHAGREATDEALOFENGINEERINGPRACTICE，INTERNALSCHOLARSHAVEGENERALIZEDCORRELATIONTHEORYABOUTWIDENINGANDALTERATIONANDACCUMULATEDDEALOFENGINEERINGEXPERIENCEBUTUSINGCABLESTAYEDSUSPENSIONSYSTEMTOWIDENSUSPENSIONBRIDGESISANEWMETHOD，ANDONLYFEWPEOPLEWORKEDONTHEATTEMPTITISDIFFICULTTOFINDCORRECTIONDESIGNDATAANDTHEORIESTHROUGHTHESTUDYOFWIDENINGANDALTERATIONOFXIAOPINGDAOSHENGDAOBRIDGEAGROUNDANCHORSUSPENSIONBRIDGE，USINGFINITEELEMENTSOFTWARETODOAGREATDEALOFCALCULATION，THEARTICLEWILLFINDAPRACTICABLEANDECONOMICWIDENINGMETLLOD，WHICHCANNOTBREAKTHEORIGINALSTRUCTURETHEMAINJOBSARCASFOLLOWS1ACCORDINGTOTHEINTERNALWIDENINGWORKTHATHASFINISHED，COLLECTINGDATA，CONCLUDEUSUALWIDENINGMETHODANDREINFORCEDTECHNOLOGYATPRESENT，BASEDONTHEADVANTAGESANDDISADVANTAGESOFEACHMETHOD，DECIDETHATUSINGCABLESTAYEDSUSPENSIONMETHODTOBILATERALWIDENBRIDGEISTHEBESTONEADDNEWSTEELGIRDERUNDERTHEORIGINALCONCRETEBEAMTOIMPROVEULTIMATECAPABILITY2TOWIDENINGALTERATIONOFMAINBRIDGE，USINGFINITEELEMENTTHEORYTOCALCULATETHEALTERATIONBEFOREANDAFTER，BYBUILDINGFINITEELEMENTMODELACCORDINGTOTHECALCULATIONRESULTS，IMPROVETHEORIGINALPROJECTANDSTUDYTHEMECHANICALPROPERTIESOFTHENEWSTRUCTUREEVALUATEECONOMICPERFORMANCEOFEACHSCHEME，ANDATTESTTHATTHENEWMETHODISECONOMIC

簡(jiǎn)介：類號(hào)密級(jí)UDC學(xué)號(hào)416014614028南昌大學(xué)專業(yè)學(xué)位碩士研究生學(xué)位論文新建橋梁上跨既有隧道工程的設(shè)計(jì)與分析新建橋梁上跨既有隧道工程的設(shè)計(jì)與分析DESIGNANALYSISOFNEWLYBUILDBRIDGEOVERCROSSINGEXISTINGTUNNEL馮瑞兵培養(yǎng)單位（院、系）建筑工程學(xué)院指導(dǎo)教師姓名、職稱熊進(jìn)剛教授指導(dǎo)教師姓名、職稱梁安寧副教授申請(qǐng)學(xué)位的學(xué)科門類工程碩士學(xué)科專業(yè)名稱建筑與土木工程論文答辯日期2016年5月27日答辯委員會(huì)主席評(píng)閱人2016年月日摘要I摘要摘要完善的城市交通體系符合可持續(xù)發(fā)展戰(zhàn)略，在城市土地有限的情況下，必然會(huì)開發(fā)利用既有隧道周圍的土地和空間。在既有隧道周圍新建橋梁或道路，隧道受力狀態(tài)將發(fā)生變化，在附加應(yīng)力作用下，隧道將產(chǎn)生二次變形，會(huì)對(duì)隧道的結(jié)構(gòu)安全和正常運(yùn)營(yíng)造成影響。隧道事故一旦發(fā)生，其損失是巨大的。因此，通過數(shù)值模擬的方法來分析和評(píng)價(jià)新建工程對(duì)既有隧道的影響具有重要的工程意義。主要工作有以下幾個(gè)方面（1）采用ASCIVIL有限元軟件，根據(jù)工程實(shí)際情況建立新建橋梁模型，對(duì)橋梁全施工段進(jìn)行數(shù)值模擬計(jì)算，包括橋梁抗彎計(jì)算、抗剪計(jì)算、以及裂縫寬度驗(yàn)算，橋梁各項(xiàng)參數(shù)均滿足相關(guān)規(guī)范要求，橋梁結(jié)構(gòu)安全。（2）運(yùn)用ASNX軟件建立托架與隧道整體模型，對(duì)托架厚板進(jìn)行分析，托架厚板的上表面混凝土最大拉應(yīng)力值較小，拉應(yīng)力區(qū)主要集中在板邊緣；而下表面的最大拉應(yīng)力較大，應(yīng)在支座處設(shè)置暗梁確保支座安全；最大剪應(yīng)力出現(xiàn)在支座連接處附近，但剪力值相對(duì)較小。（3）采用ASNX有限元軟件，建立三維數(shù)值模型模擬工程實(shí)際情況。就上部橋梁全施工段對(duì)隧道的影響進(jìn)行了數(shù)值模擬和分析。對(duì)比新建橋梁施工前后計(jì)算結(jié)果，隧道結(jié)構(gòu)軸力和彎矩的分布基本一致，但軸力值變化較大，彎矩值相對(duì)變化較小。新建橋梁施工過程中，隧道結(jié)構(gòu)各部分安全系數(shù)均有大幅下降，但結(jié)構(gòu)安全系數(shù)都大于規(guī)范值。既有隧道結(jié)構(gòu)的承載能力雖有下降，但仍能滿足承載能力和正常使用要求。關(guān)鍵詞關(guān)鍵詞新建橋梁；既有隧道；數(shù)值模擬；托換結(jié)構(gòu)；安全評(píng)估

簡(jiǎn)介：工程界對(duì)混凝土的耐久性問題越來越重視。針對(duì)內(nèi)蒙古地區(qū)采用特種水泥生產(chǎn)的橋用混凝土存在強(qiáng)度穩(wěn)定性差、生產(chǎn)成本相對(duì)高的問題，本文在以國(guó)道209線上的一座箱型橋梁為依托的基礎(chǔ)上，開展關(guān)于采用425MPA的普通水泥并且在水泥中添加高性能外加劑和礦物外摻料來制作高性能混凝土的研究及其應(yīng)用?；跐M足強(qiáng)度設(shè)計(jì)的要求，制作出具有良好的耐久性和經(jīng)濟(jì)性的混凝土，并尋找到制作混凝土的最佳配合比。本文分別在單摻粉煤灰和雙摻粉煤灰礦粉情況下并添加聚羧酸系高性能外加劑的，設(shè)計(jì)了52種不同配合比的混凝土，進(jìn)行室內(nèi)試驗(yàn)。測(cè)量各種配合比下混凝土的性能、強(qiáng)度和耐久性方面等指標(biāo)，同時(shí)完成試驗(yàn)數(shù)據(jù)的采集和分析。在單摻和雙摻兩種情況下，分析不同的膠材用量和礦物摻合料的摻量變化對(duì)混凝土的各種性能指標(biāo)的影響，優(yōu)選8種配合比，并從中選取一種配合比制作實(shí)體箱梁，進(jìn)行靜載試驗(yàn)。結(jié)果表明，單梁的實(shí)際承載力和抗裂性較好，能滿足設(shè)計(jì)要求，可應(yīng)用于實(shí)橋的建造。此外，在經(jīng)濟(jì)指標(biāo)方面，將所配制的高性能混凝土與采用525MPA特種水泥生產(chǎn)的混凝土進(jìn)行比較，結(jié)果表明文中配制的混凝土最多能夠節(jié)省943元M3。

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