18-kipequivalencyconcept;inaddition,theresultscanfacilitatethedevelopmentofmathematicalmodelsfor calculatingloadequivalencyfactors,ifnecessary. 17.KeyWords Loadequivalencyconcept,loadequivalencyfactor, AASHTO18-kipequivalencyconcept 18.DistributionStatement Norestrictions.Thisdocumentisavailabletothepublicthrough ...