tiebeam means A beam acting as a tie, as at the bottom of a pair of principal rafters, to prevent them from thrusting out the wall. Lexicurio rates it Sui generis — a strength score of 93 out of 100.
Etymology
From tie + beam.
noun
- A beam acting as a tie, as at the bottom of a pair of principal rafters, to prevent them from thrusting out the wall.“by being connected with the strap which unites the principal and tiebeam, it cannot move from its place at the extremity”