Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A beam acting as a tie, as at the bottom of a pair of principal rafters, to prevent them from thrusting out the wall.

from the GNU version of the Collaborative International Dictionary of English

  • n. 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.

from The Century Dictionary and Cyclopedia

  • n. A horizontal timber connecting two principal rafters, for the purpose of preventing the walls from being pushed out by the thrust of the roof, or for tying together other parts of a structure. When placed above the bottom of the rafters it is called a collar-beam. See cut under curb-roof.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a horizontal beam used to prevent two other structural members from spreading apart or separating

Etymologies

tie +‎ beam (Wiktionary)

Examples

  • The bay of these 7 × 15 section angelica wood joists has an inter-axis of 56.7 cm and 47 cm on either of the bracing tie-beam of the roof structure; this tiebeam forms part of the joist system and takes up the purlin brackets of the roof overhang of the gutter roofs.

    Chapter 7

  • Miss Kitty Cat crept along a tiebeam and hid herself in a pile of odds and ends that somebody had stowed high up under the roof and left there to gather dust and cob-webs.

    The Tale of Miss Kitty Cat Slumber-Town Tales

  • There is a bold ornament in the centre of each tiebeam; and at the foot of the central joist in each bay, which is wider than the rest, and molded, while the others are plain, there is an angel, projecting horizontally from the wall.

    The Care of Books

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