'Tiebeam' definitions:

Definition of 'Tiebeam'

From: GCIDE
  • Tiebeam \Tie"beam`\, n. (Arch.) A beam acting as a tie, as at the bottom of a pair of principal rafters, to prevent them from thrusting out the wall. See Illust. of Timbers, under Roof. --Gwilt. [1913 Webster]