The incident happened just before 11:30pm near mile marker 12.
Laurens County Coroner Nick Nichols identified the victim as Sam Michael Bramlett, 56, of Pinehaven St. Ext. in Laurens. Nichols said the victim died from multiple blunt force trauma and died at the scene.
The SCHP said that the victim was driving a 2002 Buick LeSabre and was stopped on the interstate when he was struck by the tractor trailer. The driver of the tractor trailer was not injured.
According to reports, the reason why the car was stopped on the interstate is unknown.