arch beam

[′ärch ‚bēm]

(civil engineering)

A curved beam, used in construction, with a longitudinal section bounded by two arcs having different radii and centers of curvature so that the beam cross section is larger at either end than at the center.

arched beam

A beam whose upper surface is slightly curved.

References in periodicals archive ?

One of the features of the room is an inglenook fireplace with a Tudor arch beam above it that is believed to have come from Evesham Abbey.

Mill House - reunited after 30-year separation; Alison Jones talks to a couple who have restored their Grade II listed home to its former size and glory

Demolition works:The defective concrete arch beams are to be removed and the column / beam arrangement is to be demolished to approximately 1000mm below the parapet beam.

Rob Roy Bridge - Partial Replacement

Large foam blocks of different shapes including arch beams and windows allow them to use their knowledge about balance and proportion to construct a building.