既有混凝土雙曲拱橋的內(nèi)力分析及加固研究.pdf

1、西南交通大學(xué)碩士學(xué)位論文既有混凝土雙曲拱橋的內(nèi)力分析及加固研究姓名：王曉陽(yáng)申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：橋梁與隧道工程指導(dǎo)教師：趙人達(dá)2001.3.1西南交通大學(xué)碩士研究生學(xué)位論文第1I頁(yè)AbstractAfteritwasfirstlybuiltin1964inWuxiCountyofJiangshuprovince，thedouble—curvedarchbridgehasbeenextensivelybuiltalloverthecou

2、ntryHoweverforsomereasonsa10tofdouble—curvedarchbridgeshavebeendamagedtodifferentextentafterbeingusedforsomeperiodoftimeandneedtobemmntainedorstrengthenedintimeItisverycomplextoanalyzetheinternalforcesofanexistingdoublec

3、urvedarchbridgeandobviouslythereissomeshortcomingintraditionalmethod，SOaccordingtothecharacterofexistingarchbridge，thefiniteelementmethodisusedtoanalyzetheinternalforcesofthebridgeForexample，accordingtosurveyedcoordinate

4、webuildafeasiblefiniteelementmodelfortheFirstFujiangBridgeusingthepreprocessblock，SuperdrawIIandBedit，ofthefiniteelementsoftwareALGOR93Inordertodecidethemostunfavorableloadcaseaccuratelyandquicklyusingstaticanalysismetho

5、ddrewouttheinfluencelinesofintemalforcesformainsectionsBasedontheseinfluencelinesweanalyzetheinternalforcesondifferentstages，beararch，beforeandafterstrengtheningthebridgeandtheanalysisresultswerecomparedwithactualcaseAcc

6、ordingtotheanalysisresultsandrequirementforuse，adhesivesteelplatewassuggestedtostrengthentheFirstFujiangBridgeandwedescribeditsrangeofuse，constructionprocessandinternalforceanalysisonstrengl[henedstructureAtlast，theautho

7、rmadeadynamicanalysisontheFirstFujingBridgebeforeandafterbeingstrengthenedTheinternalforceanalysiswasanimportantbasementtochooseresponsiblestrengtheningschemaThemethodofstrengtheningconnectedwithintemalforcesanalysiscoul

8、dbetakenasreferencebyotherexistingconstruction，thefiniteelementmethodcouldbeextendedtoanalyzeotherexistingarchbridgesandadhesivesteelplateopensupvastvistasinstrengtheningstructureKeywords：Doublecurvedarchbridge；Finiteele