混凝土受拉狀態(tài)下組合梁的試驗(yàn)研究.pdf

1、西南交通大學(xué)碩士學(xué)位論文混凝土受拉狀態(tài)下組合梁的試驗(yàn)研究姓名：馮秀云申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：建筑與土木工程指導(dǎo)教師：趙人達(dá)傅代正20040801亙蜜鑾鋈盔蘭堡主堡塞蘭蘭垡鯊塞塑!!要AbstractCompositegirdersCallmakegooduseofadvantagesofsteelandconcrete，SOtheyareusedextensivelyandtheirstructureformshavedeveloped

2、fromearlysinglesimple—supportedgirderstocontinuouscompositegirdersConcreteslabsareintensionnearbythemiddlesupportofcontinuouscompositegirdersInthethesis，studyhasbeenmadeaboutthedistributionanddevelopmentofconcreteslabscr

3、ack，calculationmethodsofcrackwidthandmeasuresforcrackcontrol，theultimatebearingeapacityofstudshearconnectorswhenconcreteslabsareintensionSomeconcrete—steelcompositegirdershavebeenmade，thenatwomilliontimesfatiguetestandul

4、timateloadcapabilitytesthavebeencarriedoutUndertheconditionofdifferentfatiguetimesanddifferentloads，thecrackdistributionhasbeenobservedandspaceandwidthhavebeenmeasuredThenthereasonsofinfluencingcrackdistributionandwidthh

5、avebeendiscussedAnalysisandcomparisonaboutseveralpresent。influentialcracktheoriesandcalculationmethodsofcrackwidthhavebeenmadeCrackwidthcalculationofmanycompositegirdershasbeendonewiththeformulaslistedindifferentcountrie

6、s’codesorrecommendedbyresearchersThenthecomparisonbetweencalculationresultsandtestresultshasbeenmadeOnthisbasemainreasonsofinfluencingconcreteslab’ScrackwidthofcompositegirderhavebeendiscussedTheimportanceofcrackcontrolt