體外預應力懸索分載法加固混凝土梁的試驗研究與理論分析.pdf

1、武漢理工大學碩士學位論文體外預應力懸索分載法加固混凝土梁的試驗研究與理論分析姓名：張迎霞申請學位級別：碩士專業(yè)：結構工程指導教師：王佶20050501武漢理工大學碩士學位論文AbstractThisthesisputsforwardanewextemalprestressedstrengtheningbeammethod，a刪p瞳啦鶴s。出國He_出鰣啦—Dadstrengtheningmethod，whichadoptsthestru

2、ctureideaofcablebridgeInordertosearchthefeasibilityandconcretestrengtheningconstructionmethodoftheabovestrengtheningmethod，threetestingbeamsweremadetodoexperimentalresearchBesides，farthertheoreticanalysisandcalculationwa

3、smadeTheexperimentalresearchshowsthatthe懿虹mI申嗡魄離cd《糊州虹面培捌strengtheningmethodisapositivestrengtheningmethod，whichimprovesstraindifferencebetweennewstrengtheningmaterialandoldconcretebeamAfterthetestingbeamswerestrengthene

4、d，thecracksinthemwercalmostcloseandbendingdeflectionobviouslyreducedAfterstrengthened，thecombinedstructuremadeupofconcretebeamandstrengtheningsystemputupthefollowingcharacteristic：theabilitytoresistdeformationdearlyimpro

5、vedthed西ditydistinctlyenhancedandtheutmostbearingcapacitystronglyincreasedTheexperimentresultsshowedthestrengtheningeffectbytheexternal—prestressed—cablesharing—loadwasveryperfectThisthesisoffersthetypicalcharacteristicc

6、urvesofthetesthagbeamsaccordingtoexperimentaldataandanalyzesthecharacteristicofstrcngthenedbeamAtthebaseoftheexperimentalresearch，thisthesissetsforththestrengtheningmechanismoftheexternalprestressedcablesharingloadstreng

7、theningmethodandthesecondbearing—loadperformanceofstrengthenedbeam，deducestherelationbetweenstressincrementofexternalprestressedcableandstructuredeformationandcalculatesinternalforce，deformationandcrackwidthofstrerIgthen