工程结构抗震设计中小震_中震和大震的确定方法

20220(6EARTHQUAKENGD[NGANDENGDRINGVIBRAn0NVol.20,JunN0.22():lX)1301(2(X)02(106,(,:Pon,,.,,.,:;;;:P315.951:AMethodofdeterminingminor,moderateandmajorearthquakeinearthquakeresistantdesignofengineeringstrueresHONGFeng,XIELi11(InstituteofEngineeringMechanics,ChinaSeimologicalBureau,Harbn15(X)80,China)Abstract:Onthebasisanalysisarededueed.ofPoissondistribution,severalimPortantfonnulasinearthquakehazardTheeharacteristicsofmeanreturnPeriodCUfVCSThCthCirtyPesofvariationofthesecurvesaredividedintoshow,moderateofintensityarestudied.andraPidaccordingtoeharacteristics.Themethodofdetemuningnor,moderateandmajorearthquakes15PresentedFoftheSCISinjCafCaStyPesofmeanretumPeriodcurves,thefor-mlllasFinally,ofdete~ningminor,havingdifferentrH0dCfateafldmaofearthquakesarededucedresPectively.anaPPlicationexamPleofthemethod15given.Keywords:exeeedingProbability;returnPeriod;basieintensity;earthquakeresistantdesign1,,50,.,,:202:(%913);(9505):,,(1958),.,.20.(1989)5063%,502%3%,,(5010%)1.55,1(1999)GumbelIn,.,,,,,,2,:,,,Poisson,tnI:(,,}exp(l),(I)I()DerKiureghianAng(1997)(I)n=O(1),tOI,I,P,(I,0)=exP(I)tl(2)(2),t1I,P,(I)=lexP(I)t(3)(3)tlT,11I(,),1(,)=lexp[((I)l(4)P:(I)=lexP(I)7](4)(4),,(4)exp(I)lTaylor,exP(I)=l(I)+(D,(5)2(I)_2!3(I)!If3!(I)(5)exP(I)l(I)(6)(6)(4),P.(I)(I)P:(I)ll(I)(7)2:(7).,(7)(I)I()R(I)=l/(I)(8)(8),,3,,1(,1986).l,OE+6l,OE+54”+0E0E(4)(8).1,l,.1,(475).,.1.OE+21.OE+l,56789101,1(%)()(%)()56789103.811.05269520.310.2932258)82769502350,(9501750.3814342514385714263154,7l,8l,8,3333,1438,,,f(I+I)f(I+Il):l)=f(I+I)f(I+Il)(9),10;f(I),f(I)=In[R(I)(10)(10)(9),,fR(I+I)=InllLJo01)J(11)45(,1986),(4)(8),(10)1.22.02,,15LS.72,125,Taylor,f(I)=f(I)+f(Io)(II)+f,(I)2!(II)2++(12)1,,f(I)=f(I)+f,(IXlI)(10)(13),InR(I)=InR(I)+f(IXlI),f(I)(12)(13)(14)(15)4000.1..!!||k.0r.f()(14),{{[R()]IR()]}/4}{n[R(][R(,]}t{InR(I)1InR(I)}/1.8(16),(16)6(,2),()()(),33,(4)(8),33,(16),,44,,,,,2:3()()63ro050.631005047597530285631005O”no4()487717n„01.62991.0.541.11491.000.97.430.88070380.781.971.731530360320287,:(l),,;,,(2),(3),,;,20(4).,.:lDerKiureghian,A.,SoeietyofAmerica,Ang,A.H5.,AfaultruPturemodelforseismieriskanalysisJ,BulletinoftheSeismologicall7.67(4)...,1986,7(2)...,.,.(:),,1989,9(l)1.,,.))().,212113]