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1、哈尔滨工业大学工学硕士学位论文加速度、场地类别计算的水平、竖向地震动标准反应谱与相应平均谱的差别。结果表明，在抗震设计规范中分别规定水平、竖向反应谱的参数，据此构造两个方向的设计加速度反应谱，比规定水平向反应谱参数、以水平设计加速度反应谱乘以谱比函数构造竖向设计加速度反应谱，更为方便，亦能够更好地反映强地震动数据的统计平均特征。关键字：反应谱；竖向地震；地震动强度；场地系数；特征周期-II-哈尔滨工业大学工学硕士学位论文AbstractIntheseismicdesigncalculationsofenginee
2、ringstructure,complexstructuresoftenneedtotaketwooreventhreedirectionsofcombinedeffectsofearthquakeactionintoconsideration.Multi-directionalinputsinvolvesinhowtofurtherregulatetheverticalseismicactiononthebasisofhorizontalgroundmotion’sprovision.Thispaperpoin
3、tsoutthatGuidelinesforSeismicDesignofHighwayBridgesstipulatingtheverticalearthquakeactionbyusingverticaltohorizontalspectraratiofunctioncanbeunreasonableandinconvenientflawsincertainconditions,thenstudythefeasibilityofstipulatingthehorizontalandverticaldesign
4、responsespectrumwithtwosetsofparametersrespectively.1513setsofNGAdatabase’sthree-componentseismicrecordsfrom64earthquakesreleasedbyPEERareselectedinthispapertoperformthestatisticalanalysisoftheresponsespectrumcharacteristics.Toanalyzetheresponsespectrumcharac
5、teristicsofdifferentbasicaccelerations,therecordsaregroupedbymagnitude,distanceandsiteconditions,eachgroup’saverageresponsespectrumisstandardizedtogetthecorrespondingeffectivepeakaccelerationEPA.TheEPAhas6intervalsof0.05,0.1,0.05,0.1,0.3and0.4g.Accordingtothe
6、resultsontheClassIIsite,consideringthegeneralrelationshipofEPAwithmagnitudeandepicentraldistance,groupsoftheepicentraldistanceR∈(0,10],magnitudeM∈[4.5,6.5]andR∈(10,30],M∈(6.5,7.5]aremergedintointerval0.2g,groupsofR∈(10,30],M∈(5.5,6.5]andR∈(30,50],M∈(6.5,7.5]a
7、reintointerval0.15g,groupsofR∈(30,50],M∈(5.5,6.5]andR∈(50,80],M∈(6.5,7.5]areintointerval0.1g;R∈(10,200],M∈[4.5,5.5],R∈(50,200],M∈(5.5,6.5],andR∈(80,200],M∈(6.5,7.5]areintointerval0.05g.Asforthehorizontalgroundmotiondatamergedintoeachinterval,theyaredividedint
8、odifferentsiteconditionstogettheaverageresponsespectrum,throughunifiedstandardization,theamplitudesandcharacteristicperiodsofthedesignresponsespectraareextracted.Accordingtoresponsespectr
