拱桥拱肋钢管混凝土质量的超声波检测

,(,200092):,:;;;;:TG115.28:A:100026656(2002)1120464202ULTRASONICTESTINGOFTHEQUALITYOFTHESTEELPIPEARCHFILLEDWITHCONCRETETONGShou2xing,SHANGTao2ping(StateKeyLaboratoryofConcreteMaterialsResearch,TongjiUniversity,Shanghai200092,China)Abstract:Anengineeringtestingshowedthefeasibilityofultrasonicmethodtoevaluatethequalityofthesteelpipearchfilledwithconcrete.Thecauseofdisintegrationbetweensteelpipeandconcretewasanalyzedandthepreventivemeasureswereal2sodiscussed.Keywords:Ultrasonictesting;Steelpipeconcrete;Transducer;Bridge;Bondingquality,75.0m,12.5m,10.5m,,1.0m,16mmQ235C50,1,,,,tc:2001208217tsp[1]tc=2RVc(1)tsp=RVsp(2)tsp=Vctc2Vsp(3)RVcVspC50,525525mm,UVc4.5kmPs,Vsp5.4kmPs,tsp=1.3tc(4)(4),,,,4642411200211NDTVol.24No.11Nov.2002©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,,,,,,,,[1],250kHz4cm,,,,R,,R-2cm,,,,(1)12,,,,,,23,4.3kmPs,38%,,,T,R(2),C,h,h=R-R2-C2(5)C=2Rh-h2(6),h3mm,(6),R=500mm,C=55mmC55mm,h3mm,4,,,,(5),,,4mm,1.52.8mmC50,560kg,U14%,,,,0.02%0.04%[2],,,,,,,,0.0128%,564:©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.(),,2003622UT,RT,MT,PT,,NDT()():13,3:100:GB94451988,(),1,(,2.5);,2,(,3.5);,,4:(NDT;):3():1000P,600P();2800;,,(),::100:200437:[phone](),,,,,,,100,100,[3],,,,,5(1),(2),,(3)100,:[1],.[J].,1986,8(7):189-193.[2].[J].,2000,29(10):41-43.[3]CECS28:1990,[S].6642411200211NDTVol.24No.11Nov.2002©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.