Seismicprooftestofareinforcedconcretecontainmentvessel(RCCV):Part2:ResultsofshakingtabletestsOriginalResearchArticle

A1/8-scalemodelwasconstructedofareinforcedconcretecontainmentvessel(RCCV)usedinthelatestadvancedboilingwaterreactors(ABWR).ShakingtabletestswereconductedonitwithinputmotionscorrespondingtoorexceedingadesignearthquakeassumedforarealNuclearPowerPlant. Theobjectivesofthetestsweretoverifythestructuralintegrityandtheleak-prooffunctionalsoundnessoftheRCCVsubjectedtodesignearthquakes,andtodeterminetheultimatestrengthandseismicmarginbyanexcitationthatledtothemodelʹscollapse.Themodel,thetestsequenceandthepressureandleaktestresultswereaddressedinPart1.Theshakingtabletestmethod,theinputmotionsandthetestresults,includingthetransitionofthemodelʹsstiffness,naturalfrequenciesanddampingfactorsandtheeffectsofverticalinputmotionsandinternalpressureonthemodelʹscharacteristicsandbehavior,theload–deformation,theultimatestrength,thefailuremodeofthereinforcedconcreteportionandthelinerplatearedescribedhere.TheseismicsafetymarginthatwasevaluatedbytheenergyinputduringthefailuretesttoadesignbasisearthquakewillbedescribedinPart3.Theanalyticalresultsofsimulationusingthemulti-lumpedmassmodelwillbedescribedinPart4.