體外預應力技術在橋梁加固中的應用

1、附4：分類號UDCF812815密級——學校代碼!Q42Z劣旌理歹大薯學位論文題目佳窆E塑廛立技盔查插鎏盤Ⅱ回生鰉座且英文ApplicationoftheExternalPerstressedTechnique題目也旦照照g曼B￡也魚絲￡墮￡塾研究生姓名一一塞掛指導教師姓名—籃盔：主一職稱—童g翌一學位j壹L單位名稱盔工程蘭建筑堂瞳郵編塹QQ2Q申請學位級別亟學科專業(yè)名稱結掏工程論文提交日期墊Q5：!i論文答辯日期學位授予單位武迅理王太

2、坐學位授予日期答辯委員會主席評閱人2005年11月武漢理工大學碩士學位論文AbstractExternalprestressedconcretestructurelSthebranchoftheunbondedprestressedconcretestructureItisthestructuresystemwhichtheprestressedsteelislocatedoutsidetheconcretesectionforlong

3、itudinallycompletelyexertingtheprestressedExtema】prestressedstructuresysternisdifferentjntraditionaijnteriorunbondedpre—stressedstructure，theinteriorunbondedprestressedsteelisarrangedinpassagewayreservedinsidethestructur

4、eAlthoulghoneachsectionthestrainoftheprestressedandtheconcreteisuncoordinated，Buttherelativepositionoftheprestressedsteelonthesectionisinvariable，alongthedirectionofthebeamlengthIthasnothingtodowiththedeflectionofthecomp

5、onentButinexternalprestressedstructuresystemtheplaceofthechangesblockandanchorrelativetothesectionofconcretebeamisinvariable，Inotherpositionthesectioneccentricitymomentofpre—stressingischangeswiththevarietyofthecomponent

6、FromthisithasinexternalprestressedtwoeffectsAsaresultoftwoeffectsexistencesInexternalprestressedBeam‘Scarryingcapacitytherigiditythefrequencyandit’SthecrackwidthandthedevelopmentOilisdifferenthastheunbondedorinteriorpres

7、tressedstructureInviewofthisquestion，thisarticlemainlyUSegeneralfiniteelementsoftwaretesearchtoexternalpre—stressedstructure，andgetsomeconclusion：(1)Introducedthecompositionoftheexternalprestressedconcretestructure，theco

8、mmonlyexternalprestressedreinforcementmethodandtheconstructioncraft，externalprestressedconcretestructurereinforcementdesignandcalculates(thesupportingcapacitydeflectionandSOon)，andhasmadetheanalysis，thecomparisonandthesu

9、mmarytoeachkindoftheoryandthemethodexistenceprominentquestionbytheexample(2)Discussedthestressstrainrelationsoftheconcretestructurematerialandsteelbartheconcretedestructioncriterion，inexternalprestressednon—linearityvari

10、ousfactorsDiscussedthequestionofthemodellingmethodofANSYS，theunitchoice，convergenceandSOon，obtainedsomesignificanectheconclusion(3)ByANSYS，mainlystudiestheworkmechanismandstressperformanceofsimplebeamreinforcedbyexternal