简介：Indesignphases,expansionjointsarerequiredtohavemovementcapacity,bearingcapacityforstaticanddynamicloading,watertight,lownoiseemissionandtrafficsafety.Onthebasisofthefactthatfailureduetodynamicloadingisthemainreasonfortheobserveddamages,attentionisfocusedonthebearingcapacityfordynamicloadinggovernedbyimpact,becauseitdiffersfromthestaticloading.Inthisstudy,fromtheviewpointofdurability,experimentalstudiesfordynamicbehaviorwereconductedforaluminiumalloyexpansionjointswithperforateddowels.Thevalidityoftheperforateddowelsagainsttrafficimpactloadingwasconfirmedbybothexperimentalandnumericalstudies.
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