雙曲拱橋病害類型及加固方法研究.pdf

1、Y870196雙曲拱橋病害類型及加固方法研究StudyonDamageTypesandStrengtheningMethodsofDoubleCurvedArchBridge作者姓名夏焦學(xué)位類型堂壓亟學(xué)科、專業(yè)直政工捏研究方向越直道路皇插粱王程導(dǎo)師及職稱瞿丕仁教攫胡盛副教攫2006年4月StudyonDamageTypesandStrengtheningMethodsofDoubleCurvedArchBridgeAbstractBec

2、auseofthemeritsinthestructure，suchasnovelty，light，savingmaterial，convenientforconstruction，thedoublecurvedarchbridgesspreadalloverthecountryandwerethemostmodelsofarchbridgesbuiltinourcountryin1960sTheymadeagreatcontribut

3、eforthedevelopmentofOUrcountry’ShighwayandbridgecausesHowever，thedoublecurvedarchbridgeshadinborndemerits，forthedesignleverandtheloadcriterionsonthelowside，andthesteelWaSscarceinthestructureWhenthebridgeswereloadedheavil

4、y，andinheavytrafficforlongtime，allofthemhadsomedamagesaftersomeperiodofusageThesedamagesplaydownthecarryingcapacityofthebridges，andmostofthemareexpanding，whichtakefromtheusinglifeofthebridgeThispapersummarizesandanalyses

5、thedamagetypesandreasonsofthedoublecurvedarchbridge，thenstudystructureassessmentandstrengtheningmethodswhichisthesame、ⅣitllthedoublecurvedarchbridgeFinally，combiningwithanactualsituation，thispaperpresentstheapplicationof

6、prestressedsteelarchsupportmethodtostrengthendoublecurvedarchbridge，andthestructuralsystemperandafterstrengtheningarestudiedwithlargescalefiniteelementsoftwarenamedSAP2000Itisconcludedthattheloadcarryingcapacitiesofthedo

7、ublecurvedarchbridgescanbeimprovedthroughreasonablestrengtheningmethodThishasgreatsignificancefordispellingthetrafficdisease，increasingthepassingcapacity，andenhancingtheservicelevelKeywords：doublecurvedarchbridge；damaget