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4420078JOURNALOFRAILWAYSCIENCEANDENGINEERINGVol14No14Aug.2007X(,410015):,4,,:;;:TU71:A:1672-7029(2007)04-0065-06AppraisementandanalysisofinfluenceofvibrationduringconstructiononsafetyofbuildingstructuresFANGDong2sheng(HunanNo.6EngineeringCorporation,Changsha410015,China)Abstract:4kindsofwaysofinfluenceanalysisonsafetyofthenearbuildingstructureswerepresentedbyanalyzingthetheoryofvibration-impactpiledriversystemandthesoilvibration.Inaddition,afundamentalprincipleforapprais2ingofinfluenceofvibrationduringconstructiononsafetyofthenearbuildingstructureswasproposedaccordingtotheappraisaldemandsofcivilbuildings.Andthereasonabilityoftheabovefundamentalprinciplewasverifiedbyapplyinghimintoapracticalproject.Keywords:vibration-impactpiledriver;effectsofconstruction;appraisementofsafetyofbuildingstructures,,,,,[1](GB1007088)(GB309693),,,,,,1[2],,[3],:x+2nx+2nx=psin(t)(1):2n=c/m;2n=r/m;p=p0/m(1):x=Ae-tsin(2n-n2t+2)+Asin(t-)(2),:X:2007-06-20:(1963-),,,,,A=A0Z2(2vZ)2+(1-Z2)2;=arctan2vZ1-Z2(3):v=n/n;Z=/n;A0=m0e/m1(a)-v:1-1;2-0.5;3-0.375;4-0.25;5-0.10;6-0.15;7-0.65;(b)-v:1-1.0;2-0.5;3-0.2;4-0.1251Fig.1Macharacteristiccurvesofmultiandfrequency1:Zm1(mn)AA0A=A0=m0e/m,nr,A(2)Z=1(=n),A/A0=1/(2v),,AA0,m0e,A,,,,(1),(1),2,,,,,,,Tv,TTv,p0:p0Tv=T(4)(4),,:,,,:=a/ga=dx2dt2,a=A2sin(t-)sin(t-)=1,amax=A2,p0=m02e,A=m0e/m,,=T/(mg)=Tv/(mg)(5)(5),(=0),Tmax,a,TTmin,,TmaxTvmin:dTVd=-(Tv-Tvmin);Tv=Tvmin+(Tmax-Tvmin)e-(6):,052,,e-x,x==5,e-x7/1000,10,a=x10g,,amax=A2,A,A,,10mm,,,,,66200788001500r/min,,80160s-1[4]/s-1:,100200s-1;,90100s-1;,7075s-1;,6070s-1;,5060s-1,,,,,[5]2,16m1-50%;2-;3-()2Fig.2Testcurvesinvelocityofsoilparticlesvibration33.1,,,,,,,,,,,(GB500112001)[6],23.1.1,,1:x(t)+2A0sin(t),A0=m0e/m(7),80160s-1,=0.05:Sa=|a(t)|max=|t0x()e-(t-)sin(t-)d|max(8)3.1.2xmax=2A0,xmax=A0,[7],,[6]3.2,,,,,,,3.2.1,,[7],,,,,;,3.2.2NorthwoodWiss764,:,,,,,[8](GB67222003)[9],80160s-1,1226Hz,0.0230.028m/s,0.0350.045m/s[6]6550.020.04m/s,,,0.02m/s,0.03m/s,,,,,3.2.3[9],,,3,16m,0.016m/s0102m/s,,16m,s,s16m,,,s16m,4(GB50292-1999)[10],4,,1,,,,,,,,,,,,,,,,,,,,,,,5,,f1700/min,86200785.13,76m350,1.0m,7.0m,50,160,8.0m20002001,,6,11m,8.5m12,240mm,240mm,,,240mm,225m,3,800mm,1600mm,2m,,1m1.64.7m;1.67.6m,1.45.4m;3.06.7m,04.7m,;,6.17.6m,:,,0.7mm;,3,0.4mm;33,0.5mm;6,500600mm3Fig.3Relativepositionofconcretebeam5.2(1),,76m,16m,,(2),,4,9m,0.02m/s,,/m:1-3;2-6;3-9;4-25;5-674Fig.4Waveformsofvibration5.3(1)4,(2)12,,,(3)1.64.7m1.45.6m964,:(4)5.4,,,,,6(1)A10mm,(2)8001500r/min,80160s-1,16m(3)(4):[1]GB1007088,[S].GB100701988,StandardofEnvironmentalVibrationinUr2banArea[S].[2].[J].,1999,8:72-76.YANGZhen-zhong.Optimizationofimpactpositionandsimulationofsmallvibratorypiledriver[J].JournalofHy2draulicEngineering,1999,8:72-76.[3].[J].,1999,9:20-22.JIAWu-xue.ComputationalTheoryofvibratorypiledriver[J].MechanicalResearch&Application,1999,9:20-22.[4],,.[J].,2001,18(90):3-4.HUOXiao2qiang,CHOUZhuan2li,KEJin.Mainparametersselectionandcalculationforpilehammerofvibrationpiledriverextractor[J].RoadMachinery&ConstructionMecha2nization,2001.18(90):3-4.[5].[J].,1998(12):19-21.CAIShao2ju.Variable-frequency&variable-eccentricmo2menthighfrequencyvibrationpilehammerbyhydrauliccon2trolled[J].ConstructionMachinery,1998(12):19-21.[6]GB500112001,[S].GB500112001,Codeforseismicdesignofbuildings[S].[7],,,.[M].:,2000.SHENJu2min,ZHOUXi2yuan,GAOXiao2wang,etal.Aseis2micEngineering[M].Beijing:ChinaConstructsIndustrialPress,2001.[8],,.[J].,1997(1):1-5.ZHAIHou2qin,GAOBen2li,LIUYong2gang.Apracticalesti2matingmethodofinfluenceofpiledrivinginducinggroundmotiontonearbybuildings[J].JiangsuConstruction,1997(1):1-5.[9]GB67222003,[S].GB67222003,Securespecificationforblasting[S].[10]GB502921999,[S].GB502921999,Standardforappraiserofreliabilityofcivilbuildings[S].0720078