:,,,,:;;;Abstract:Accordingtotheloadingpropertyofthesteelwirerope,thispaperapproachesthefactorsthatinfluencesthesteelwireropesfatiguelife,andgivesadetailedanalysisonthetwokindsofmainfactorsamongthem,thebendingstressandcontactingstress1ByNiemannsformulaandcorrespondingdata,thispapercalculatesthenumberofbrokentimesofthesteelwirerope1Keywords:steelwirerope;fatiguelife;loadingproperty;Niemannsformula,,,,,,,,,1,,,,:1),:=KFAn(N/mm2)(1)[1],F,N;An,mm2;K,K=1122),,,,,3),,,,4),,,,,,,,,,,21)DdD/dD/d,101PortOperation2005.No.1(SerialNo.159)1,,No1No3No590151/mm/kN1619W+1+37901513000045162619W+1+37851513000023103619W+1+37901513000028104619W+1+37851513000019105619W+1+37901513000049106619W+1+3785151300002910mm,No2No4No68515mm47%69%98%,5mm,,,,2)D/d,(Niemann),n110%:n=17104D/d-9B/(10Sf)+42(2)[2],D,cm;d,cm;B,MPa;Sf,819S+FC,1670MPa(2)n,11,,,,,,,,,,3,3:,,,2(2),:P=2FDd(3),P,MPa;F,N;D,mm;d,mm,,P,:Pmax=f4E1E2E1+E22(4)[3]Pmax=f2E1E2E1+E22(5)[4],E1;E2;f,f=01460,f=015431120051(159),(3),P,,,(4)(5),,4,,,,,,,1,11:,1983.2[],111:,1987.3[]Ing1J1Verschoof111:,2002.4,11,1995(5):2223:430063,1040:2004-12-03:187+FC,:;;Abstract:Thispaperanalyzesthereasonthatthe187+FCstructuralsteelwireropegotfailureearlierintheduringtime1Itintroducesthetwokindsofspecialstructuralsteelwireropesthataremanufacturedbythereferenceoffor2eigntechnicalmaterialsandtheirapplicationstotheportalcranes1Keywords:portalcrane;non-twistingsteelwirerope;structure1(),,,,,637+FC636SW+FC636SW+IWRC187+FC,187+FC,,,,:;;,,,,,187+FC,,(SWAGED439S+FCFNR35),2187+FC187+FC,21PortOperation2005.No.1(SerialNo.159)