Hammer Beam Roof Definition

A false hammerbeam roof truss has two definitions.

Hammer beam roof definition. Hammerbeam roof synonyms hammerbeam roof pronunciation hammerbeam roof translation english dictionary definition of hammerbeam roof. Hammer beam trusses can have a single hammerbeam or multiple hammerbeams. 2 the hammer beam joins into the hammer post instead of the hammer post landing on the hammer beam. A hammerbeam is a form of timber roof truss allowing a hammerbeam roof to span greater than the length of any individual piece of timber in place of a normal tie beam spanning the entire width of the roof short beams the hammer beams are supported by curved braces from the wall and hammer posts or arch braces are built on top to support the rafters and typically a collar beam.

Apart from the architectural features there is a regimental museum military prison the mons meg a 500 year old siege canon a 12th century chapel the great hall with an unusual hammerbeam roof the 15th century royal apartments and outstanding northward views over the gardens and geometric patterned new town. 1 there is no hammer post on the hammer beam 16 17 as sometimes found in a type of arch brace truss 18 or. A hammerbeam structure can also be regarded as a simple form of truss. Hammer beam definition is either of the short horizontal beams or cantilevers projecting from the top of a pair of opposite walls to support a roof principal for a gothic roof and thus dispense with the necessity for a tie beam.

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 hammer beam is the short beam at the base that attaches to the wall. Hammer beam roof english medieval timber roof system used when a long span was needed. A member of one description of roof truss called hammer beam truss which is so framed as not to have a tiebeam at the top of the wall.

Diagram of a hammerbeam roof hammerbeam roof systems developed in english architecture in the medieval period. A hammerbeam roof allows a span greater than the length of any individual piece of timber.