預(yù)應(yīng)力混凝土橋梁起拱度的理論計算和控制方法的研究.pdf

1、武漢理工大學(xué)碩士學(xué)位論文預(yù)應(yīng)力混凝土橋梁起拱度的理論計算和控制方法的研究姓名：王開鳳申請學(xué)位級別：碩士專業(yè)：結(jié)構(gòu)工程指導(dǎo)教師：蔡千典2002.3.1——叢堅些!盔堂堡!苧蘭型壘鑒———————————————一ABSTRACTPrestressedConcretebeamiSapplledwidelywithstrongriv“l(fā)r。usnesslatelyButintherecentyearsofconstructiOils，ahar

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4、tressedconcretebeamiSanalyzedat1ength(2)Thedeflectionupwardiscalculatedandprogrammed(3)EffectivemethodsindesignandconstFUCtionareprovidedtocontrolover—deformation1hew。khcubratedinthispaperisgeneralizedasfollows：(1)Therev

5、eFSedarchcausedbyprestressiScomputedbysolvingdifferentialeouations(2)CreepcoefficientiSsimulatedandprogrammed(3)Thede’lec％ionofsimplesupportedbeamiScalculatedbythemeansthatuniteselastiCandplasticanalysisintoFinite—Elemen

6、ttheory(4)Thed。flectionofcontinuousbeamiScomputedbytheFiniteE1ementmethod(5)Thereversed—archofabridgeunderconstructi0niSworkedoutandthechangeofvalueiSpresentedindifferentcircumstancesThedeflectionofprestressedconcretebea