预应力混凝土弯梁桥受力性能及预应力损失研究

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1、大连理工大学硕士学位论文预应力混凝土弯梁桥受力性能及预应力损失研究姓名：吕佳申请学位级别：硕士专业：建筑与土木工程指导教师：王清湘20071216预应力混凝土弯梁桥受力性能及预应力损失研究TheForcePerformanceandPrestressedLossofPrestressedConcreteCurvedGirderBridgeAbstractWi也thedevelopmentofurbanroadandhiglaroadtl'af五C．thecurvedgirders啪Increasinglywidelyapplied

2、andbecomeallimportantbridgestyleinmodemcommunicationengineering．Inthispaper,theresearchonsomeproblemsofthedesignofcurvedgirdefshasbeencarriedOILIthasSOmcpracticalityinengineering．Acurvedgirderisaspecialstructureunderthecoupledactionsofbendingandtorsion,SOplanaranalysi

3、sisfftapplicableforit．Inthisthesis，basedontheengineeringpracticeapplication,theanalysistheoryofcontinuouscurvedgirderbridgeandthefrequentlyusedanalysismethodsinengineeringareintroducedandconcluded．Themechanicscharacteristicofstmctmeloadhasbeenstudied,withcoupledeffect

4、ofbendingandtorsion,unbalancedforceoninnerbeamandouterbeam,andtheeffectofdead10adandliveload．Itgivessomeadvicesaboutcomputemodelofcurvedgirderbridge，thechoiceofcomputeprogram，andthe．designprogress．Someproblemsuchasthechoiceofsectionandpath,computeanalysis，supportingre

5、striction,bearingeccentricityinadvanceandgenerallycollocationofcurvedgirderbridgearediscnssed．Itbringforwardsometheoryaboutthel-i美l$oneasingthebearingnegativereactionofcurvedbridges．andthemostlymeasurcsolvingthemotionisselectingrationalsupportingrestrictioILItalsobrin

6、gforwardthatthekeyfactoraffectthemagnitudeofinternalforceinbeamisthesizeofcurvedgirderbridges’radius，centralangletoeveryspan．ThespanisselectedbasedoncurveradiB$toasSUl'ethestructurereasonableandeconomy．Inthispap盱9basedontwopracticalprojects,thedesignmethodofcurvedgird

7、erbridgesandthekeyproblemwithit黜discussed．KeyWords：CurvedGirderBridge；bearingecce栅ci母inadvance；舳pponingrestrietiompracticalprojects．一II—·独创性说明作者郑重声明：本硕士学位论文是我个人在导师指导下进行的研究工作及取得研究成果．尽我所知，除了文中特别加以标注和致谢的地方外，论文中不包含其他人已经发表或撰写的研究成果，也不包含为获得大连理工大学或者其他单位的学位或证书所使用过的材料．与我一同工作的同志

8、对本研究所做的贡献均已在论文中做了明确的说明并表示了谢意。作者签名：剖：日期：畦竺Z丝：!三大连理工大学专业学位硕士学位论文大连理工大学学位论文版权使用授权书本学位论文作者及指导教师完全了解“大连理工大学硕士、博士学位论文版权使用规定”，同意大连理