最新考虑楼板作用的结构的连续倒塌

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1、ACISTRUCTURALJOURNALTECHNICALPAPERTitleno.109-S74SlabEffectsonResponseofReinforcedConcreteSubstructuresafterLossofCornerColumnbyKaiQianandBingLiIntypicalcast-in-placeconstruction,beams,columns,andslabsqualityofprotectivedesignandaddedtotheknowledgeactasasin

2、glestructuralunit.IgnoringtheslabcontributiontothepoolontheprogressivecollapsebehaviorofRCstructures.strengthandductilityofbeamswillresultinasignificantunderes-However,themajorityofthepreviousspecimentestsweretimationoftheverticalforceresistance.Theinfluenc

3、eoftheslaboncarriedoutonplanarspecimenswithoutmonolithicfloorthestrengthofthefloorsystemunderimposedverticaldeformationslabsandtransversebeams.Intypicalcast-in-placeconstruc-issignificantlygreaterthanthatanticipatedbytheinterpretationtion,beams,columns,ands

4、labsarecastsimultaneouslyandofthecurrentprovisionsforeffectiveslabwidthsactingasaflangeinaT-beamanalysis.Therefore,toquantifythecontributionofthethereforeactasasinglestructuralunit.Ignoringtheeffectslabtowardprogressivecollapseofbuildingstructuresintheblast

5、oftheslabonthestiffnessandstrengthofthebeamswillenvironment,twoseriesofspecimens(FandS)weretestedundermostlikelyresultinasignificantunderestimationofthemonotonicloadingtosimulateaxialloadinginthecornercolumn.verticalforceresistancecapacity.Theinfluenceofthe

6、slabTheexperimentalresultshighlightingthebehavior,suchasforce-onthestrengthofthefloorsystemunderimposedverticaldisplacementresponses,crackpatterns,andfailuremechanisms,deformationissignificantlygreaterthanthatanticipatedbywerediscussed.Comparisonoftheperfor

7、manceofthesetwoseriestheinterpretationofthecurrentprovisionsforeffectiveslabofspecimensindicatedthatincorporatingthereinforcedconcretewidthsactingasaflangeinaT-beamanalysis.Moreover,(RC)slabintothebeam-columnsubstructureswouldincreasefewexperimentalstudiesh

8、avebeenconductedtostudythetheultimateresistancecapacitybyupto63.0%andsignificantlyperformanceoftheRCframeforprogressivecollapseunderreducethelikelihoodofprogressivecollapse.thescenarioofthelossofacorne