释能法加固拱桥内力重分配研究

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1、分类号坐箜：!±!密级㈣㈣㈣㈣if

2、JY15268a芝。单位代码10618学号106260287墨麽交通戈肇硕士学位论文论文题目：释能法加固拱桥内力重分配研究AStIldyOnInternalForceRedistributionofReinforcementArchBridgewithReleasingEnergyMethod研究生姓名：章鹏导师姓名、职称：蒙云教授申请学位门类工学专业名称：桥梁与隧道工程论文答辩日期：二oo九年四月七日学位授予单位：重庆交通大学答辩委员会主席：张太雄教授级高工评阅人；张太雄

3、教授级高工二00九年四月张雪松副教授ABSTRACTBasedonfindingmuchinformation，thecurrentmainreinforcementmethodsofbridgereinforcementanditsscopeofapplicationareintroduced，aimatthearchbridgeindetail．NextintroducedthebasicprinciplesofERmethodreinforcearchbridge．Comparedtheadvantag

4、eofERmethodreinforcedarchbridgeandothertraditionalarchreinforcementmethods．Theresearchbackground，researchtools，aswellasresearchpurposesofthetopicareexpounded．ThebasicprincipleofERmethodreinforcedarchbridgeistotransformthestructuralofbridge，transformthenohin

5、gestructuretoflathinge．neauthorfocusesonthestructuralmechanicsandcalculationmodelofERreinforcearchbridge．Andanalyzedthesuperpositionmodeloftemperaturecalculation．InthecourseofresearchERmethodreinforcedarchbridge，experiencedfromasingleERmethodreinforcedarchb

6、ridgetothecombinationofERmethodandincreasingcross-sectionofcompositemethod，especiallywithregardtotheoriginaldesignloadlowerlevel．Needtoincreasethecarryingcapacityoftherelativelylargerangeofoldbridge，compositemethodprovidesagoodsolution．However,canbere-distr

7、ibutedofinternalforcesaftercompositemethodappliancetheprincipleofERmethod．Ⅵmetherornotafterthere—distributionofinternalforcescanenhancethecapacityofbridge．Throughcalculationandanalysisinthispaper,comparedandanalysisthecross—section’Ssituationofinternalforce

8、sre-distributebeforeandafterthereinforcementunderthesameloadstandard．Comparedtheforcestatusofbeforeandafterreinforcement，analysisitsinternalforcewhetherornotchanged．Atthesametimetestthewholeprocessoftest．Collectdatebytestmeasureofthissubject，analysisthedate

9、，reflectedtruththeprocessofredistributionofinternalforces．Summingupthelawsofredistributionofinternalforces．Bycomparingthecalculatedresultsandexperimentaldatetoprovetheconsistentofcalculationmodelandtes