跨間豎向荷載作用下預(yù)應(yīng)力框架內(nèi)力重分布的試驗(yàn)研究.pdf

1、分類(lèi)號(hào)UDC密級(jí)學(xué)號(hào)彳鷹火季碩士學(xué)位論文論文題目：跨間豎向荷載作用下預(yù)應(yīng)力框架內(nèi)力重分布的試驗(yàn)研究論文作者：孫新敏蕞暴、教T穩(wěn)蓉：吾正霎孰羹重慶大學(xué)職稱(chēng)、作單位：簡(jiǎn)斌副教授喜J大天罕申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)名稱(chēng)：結(jié)構(gòu)工程論文提交日期：2002年月日答辯日期：學(xué)位授予單位：重慶大學(xué)授位日期：答辯委員會(huì)主席：論文評(píng)閱人：2002年05月日年月日年月日重慶大學(xué)碩士論文英文摘要AbstractBasedontheexperimentalstudy

2、oftwopresstressedflames，itanalysesthequestionofredistributionofintemalforceandanalysesinfluenceofmomentmodulationofprestressedflamesThereforeitdrawssomeconclusionasfollow：1)Posttensionedprestressedframescarlbepracticedon

3、momentmodulationButhowtooperatedecidesonpracticalsituationindesign21ThesecondarymomentisallimportantfactoronmomentmodulationWhenlissmall，influenceofthesecondarymomentonmomentmoduIationissmallContrarywhenEishighinfluenceo

4、fthesecondarymomentisimportantSometimesitcontrolsmomentmodula蛀on3)TherelationsbetweenmodulationofthesecondarymomentandmodulationofloadisveryosculationWhenlbecomesgreatermodulationofthesecondarymomentbecomesgreaterButmodu

5、lationoftheloadmomentreducesinmereextent41AsdesigningmodulationofthesecondarymomentmustbeconsideredButwhenthesecondarymomentisverygreatthewholesecondarymomentasmodulationisunfitTheremaybehaveafitreducingtoe伍cient5)Thesec

6、ondarymomentpostponescomingofplaStichingeonfralllesInotherwords，itreducesrequisitionofrotationabilityofsectionTherefore，itmaybeimprovemodulationabilityofframeHoweverwhenissmall，sectionhasadequaterotationabilityTheseconda

7、rymomenthasnoinfluenceonultimatelimitloads，WhenEishigh，rotationabilityofsectionisshortageThesecondarymomentimproveultimatelimitloadsofflamesbyimprovementrotationabilityofsection6)Horizontalbracesforceofhorizonthatresults

8、fromtensionTherefore，itreducespre—compressstressHorizofltalbracesisstrongerit’Sinfluenceismoreimportant7)Intheprestesssedframes，directionofsecondarymomentofhorizontalbraceandsecondarymomentofequivalentloadissamenessHoriz

9、ontalbraceisstrongersecondarymomentofhorizontalbraceisbigger8)CrackofcolumnhaSinfluenceonmomentmodulationonprestressedframesCrackofcolumnequaltoimproverotatingabilityofendofbeamTherefore，itimprovesabilityofmomentmodulati