14-基于midas-Civil的C40大体积混凝土施工期仿真分析

37120122HighwayEngineeringVol．37No．1Feb．20122011—10—121984—。MIDAS/CIVILC401221．4300632．4300125000m3。MIDAS/CIVILU445．1A1674—0610201201—0136—03BasedontheMIDAS/CIVILC40LargeVolumeConcreteConstructionSimulationAnalysisYANGPeicheng12LIZhicheng21．SchoolofTransportationWuhanUniversityofTechnologyWuhanHubei430063China2．TheSecondHarborEngineeringCo．Ltd．5thConstRuctionCompanyofCCCCWuhanHubei430012ChinaAbstractLargevolumeconcreteinbridgeconstructioninmodernusehasbeencommonespecial-lyforthebridgepilecapusuallysingleconcreteamountedtomorethan5000m3effectivelysolvetheconcretehydrationheatisthekeyforconstruction．KeywordsuperLargeBridgeLargevolumeconcreteHeatofhydrationFiniteelementMIDAS/CIVIL1。①。②。③。④。⑤。。———MIDAS/CIVIL。2。4×40mT+190m+3×380m+165m+1615×40mT。7286．63m41．1m×32．3m×6．5m8629m3C401MIDAS/CIVILC40。342．8m253．1m984m。。3MIDAS/CIVIL711。11/4Figure1meshofPlatform1/4modelWithequivalentcon-straintbase1Table1Accordingtothetestofconcretematerialmaterialpropertydataareasfollows/kcal·m·h·℃－1/kJ·kg·℃－128dMPaACI2．51．05a=4．5b=0．95/kJ·m·d·℃－1/kg·m－3/kJ·m－3/MPa28．1224001287003．25×104/℃－1/℃/℃/℃1×10－51350．810～151/41m×1m×0．8125m。1。4①。②1～2m80～100cmΦ35。③0．65m/s。④。523。2Figure2Temperaturefieldsimulationanalysisresults236～7d1d15～20d。731373Figure3Temperatureversustimecurve67℃71℃。。45。4Figure4Stressfieldsimulationanalysisresults4、571．73MPa4．39MPa。①50℃5Figure5Stressandtimecurves②25℃③2℃/d④20℃⑤70℃⑥。1/44、。SZWT—MCU32。。2h4h5d2。。622。71998311。1mmPVC。⑤。⑥。5櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧櫧。1382Table2Twoconcrete’stemperatureriseisasummarytable—－－T—T41．1/2=22．55m32．3/2=16．15m/℃/℃2011－01－22T900—25T14002Z－747．502H－748．25—－－T—T41．1/2=22．55m41．1/2=22．55m/℃/℃2011－02－25T1400—27T22004Z－258．004H－461．00、、、、、、2①。。、、、、。。7284。②。。。。《》JTJ04189。③。。。2．0℃/d25℃70℃。。1．J．20103．991