人工气候加速锈蚀后钢筋混凝土粘结性能试验研究yao

[]2004-10-11[](50078054)1,1,2(1.,221008;2.,221008)[],,[];;;;[]TU52810[]A[]1002-3550(2004)11-0045-04BondbehaviorbetweenconcreteandsteelbarscorrodedbytheartificialclimateacceleratedcorrosiontechniqueDAIKao2shan,YUANYing2shu,YANGGuang(1.SchoolofArchitecture&CivilEngineering,ChinaUniversityofMining&Technology,Xuzhou221008,Jiangsu,China;2.ArchitecturalDesignInstituteofChinaUniversityofMining&Technology,Xuzhou221008,Jiangsu,China)Abstract:Experimentsareconductedtostudybondbehaviorbetweenconcreteandrebarcorrodedthroughtheartificialclimateacceleratedcorrosiontechnique.Basedonexperimentalresults,bondperformancesbetweenconcreteandsteelbarsatdif2ferentcorrosionlevelsundercyclicloadingaremainlydiscussed.Keywords:theartificialclimate;acceleratedcorrosion;reinforcedconcrete;bond;cyclicloading0,[1],,,[24],,,,;,,11150mm160mm300mm,425,=101591193153,fcu=2616MPa,100mm,5d8d(d),30mmPVC,,,,6mm12211,,,,5%NaCl28,(2),,212,,,,,54200411(181)Number11in2004(TotalNo.181)ConcreteChinaBuildingScienceCorePeriodical©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(3),3,31112:;SSS1=S,S=0,,S2=S+S,,,4;4SSS1=S,S1=-S,,S2=S+S,,,5531113d14mm20mm,c20mm30mm,ABCD()()(),16(44),11AA1A2A3A4BB1B2B3B4CC1C2C3C4DD1D2D3D4/mm20202020303030302020202030303030/mm1414141414141414202020202020202031231211,,,c/d31212S686-S-SS64©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:(K1)S,max(S0),maxu;(K3)r(Sr)-S,S(K2),S(K4),f,,S,,S0()(),S-S,9,-S,S0S0S0-S9-S31213-S-S-SS01011-S-S,:-Smaxrur,-S-S,Sr,,,,10A1A211C1C231214-SS0,121312B-S13D-S:c/d,,max,maxS0;,maxS0c/d74©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:,,,,;c/d,,31215(1)K21;S-S,K21,,K21S1414K21S,,K21SK21,,,,,,K21,(2)K4-S,,,,(3)ff,,f,ff=f/,fc/d,ff,f,f(4)d,N,N(N)(1)d,d=(N)/(1)S,dN15BS=115mmdN,,dN;,,NS,dN15dN4(1),,,(2)c/d(3)-S,-S(4),,,(5),,,[][1],.[M].,1985:254.[2],,.[J].,1999,29(11):47-50.[3]YuBunAuyeung,P.Balaguru,andLanChung,BondBehaviorofCor2rodedReiforcementBars,ACIMaterialsJournal,2000,V.97,No.7,pp214-200.[4],,.[J].,2000,30(5):10-12.[],1977,,,[],(221008)[]0516-3796546;13776795683;E-mail:[e-mail]84©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.