高強(qiáng)度混凝土預(yù)應(yīng)力組合梁的設(shè)計(jì)研究.pdf

1、東南大學(xué)碩士學(xué)位論文高強(qiáng)度混凝土預(yù)應(yīng)力組合梁的設(shè)計(jì)研究姓名：孫世家申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：交通運(yùn)輸工程指導(dǎo)教師：葉見(jiàn)曙舒惠芷2001.3.1ABSTRACTSUNShijia(InstituteofTraffic&TransportationEngineering，SoutheastUniversity)Basingonanalyzingandcomparing，thethesisconcludesthatashighstrengthc

2、oncreteandpre—stressedstringadoptinhighwaybridgeonstruction，itwoulddepresssubstructurehighandreducesubstructureweight；Adaptationofhollowsectionofhighdugquotietywouldnotonlyenhancesectionefficiencyandanti—twistabilitybuta

3、lseuenchexpenditureofconstruction；Especially，combininghighstrengthconcreteandpre—stressedstringwithassemblycompoundbeam，expenditureanddifficultyofconstructionwouldreduced，onthecontrary，accomplish—meritbequickenThethesisa

4、lsoinvestigatesexploringlybehaviouranddosingofhighstrengthconcrete，whichisfeasibilityandnecessitudetohighwaybridgeconstruction，andisthetendencyinthefutureInvirtueoftwostagetheoryofforceanalysisofcompoundbeam，thethesisput

5、sforwardaseriesofsynthesisexpressionsofforceanddeformationItalsopropoundsnotonlythecontextureofcompoundbeambutalsocalculationformulaandsettingsofshearkeysofjointsection，whichweshouldpayattentiontoCarryingtheconstructionp

6、lanofabridge(span400re)offluteprofileintoexecution，itfoundthathighstrengthconcretecompoundbeamofprestressedsteelhaveevidenceeconomybenefitandhighpracticability：heightofsubstructurededuced333％magnitudeofallofconcretededuc