HAMMER-BEAM ROOF


Meaning of HAMMER-BEAM ROOF in English

English medieval timber roof system used when a long span was needed.

Not a true truss , the construction is similar to corbeled masonry (see corbel ) in that each set of beams steps upward (and inward) by resting on the ones below by means of curved braces and struts. The roof of Richard II 's Westminster Hall in London (1402), with a 70-ft (21-m) span, is an excellent example.

Britannica English dictionary.      Английский словарь Британика.