鋼管混凝土粘結(jié)滑移性能的理論分析及ansys程序驗(yàn)證

1、西安建筑科技大學(xué)碩士學(xué)位論文鋼管混凝土粘結(jié)滑移性能的理論分析及ANSYS程序驗(yàn)證姓名：劉玉茜申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：結(jié)構(gòu)工程指導(dǎo)教師：薛建陽(yáng)20060401西安建筑科技大學(xué)碩士學(xué)位論文StudyontheBasicTheoryofBondSlipbetweenSteelTubeandConcreteinCFTStructuresandNumericalSimulationbyANSYSProgramSpecialty：CivilEngi

2、neeringName：LiuYuqianInstructor：XueJianyangBasedonthedomesticandabroadresearches，themechanismofbondbetweensteeltubeandconcreteinCFT(ConcreteFilledSteelTube)structureswasanalyzedinthispaperByaseriesofCFTpushouttestresults

3、，boththebondstrengthandtherelationsbetweenthebondstressesandslip，whichwasusuallycalledbondslipconstitutiverelationswereanalyzedAndtheoreticalanalysisonthebondbehaviorsWascarriedoutAccordingtotheformerresearches，initialun

4、derstandingOntheCFTstructuresWasestablished。andtheimportanceofinterfaceconditiOIlStobondbehaviorandthedistributionofbondstressesalongtheCFTcolunmwerenotedTheconstituteofbondforce，includingchemicalbondactionbetweenthestee

5、landtheconcrete。thebondactionprovidedbythemechanicalinterlockingoftheconcreteandsteel，andthebondactionthatdependsontheinterfacepressureandthecoeflicientoffrictionAccordingtotheloadslipcurves伊Scurves)，everystageofrelation

6、shipbetweenbondstressandslipwasanalyzed，includinginitialslipstage，acceleratedslipstage，descendingstageandresidualstageTheeharacteristiesofPScurveswcTesummedupInsomeonesthereWeTeultimatestageanddescendingstage，andintheoth

7、ersthereWasonlyascendingstage，notreachingthepeakpointn圮bondstrengthWasdefinedonthebasisofthedistributionsofthesteeltubestrainFactorsandshearconnectors，affectingthebondstrengthwereanalyzedinvolvingmanyaspects，suchasmateri

8、als，thespecimenshapeandsizecuringconditionsandloadingmethodsAndhowthebehaviorofthestructurewasinfluencedbythebondstrengthandslipbetweenthesteeltubeandtheconcretecorewasalsostudiedAccordingtolinearregressionanalysis，botht

9、hebondstrengthandthebond—slipconstitutiverelationswerepresentedinthispaperThepushouttestspecimetmwerenumericallysimulatedbyANSYSprogramInordertotaketheinteractionbetweenthesteeltubeandtheconcretecoreintoaccountcombinatio