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Greek τρισκελής (triskelḗs) means ' three-legged ' [4] from τρι-(tri-), ' three times ' [5] and σκέλος (skelos), ' leg '. [6] While the Greek adjective τρισκελής ' three-legged ' (e.g. of a table) is ancient, use of the term for the symbol is modern, introduced in 1835 by Honoré Théodoric d'Albert de Luynes as ...
In classical architecture, an architrave (/ ˈ ɑːr k ɪ t r eɪ v /; from Italian architrave 'chief beam', also called an epistyle; [1] from Ancient Greek ἐπίστυλον (epistylon) 'on the column') is the lintel or beam, typically made of wood or stone, that rests on the capitals of columns. [2]
A hammer-beam 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.
The loads applied to the beam result in reaction forces at the beam's support points. The total effect of all the forces acting on the beam is to produce shear forces and bending moments within the beam, that in turn induce internal stresses, strains and deflections of the beam. Beams are characterized by their manner of support, profile (shape ...
Key: 1: principal rafters, 2: collar beam, 3: arch braces. Lacking a tie beam, [ 11 ] the arch-braced (arched brace) [ 12 ] truss gives a more open look to the interior of the roof. The principal rafters are linked by a collar beam supported by a pair of arch braces, which stiffen the structure and help to transmit the weight of the roof down ...
In structural engineering, a rigid frame is the load-resisting skeleton constructed with straight or curved members interconnected by predominantly rigid connections, which resist movements induced at the joints of members.
True cruck or full cruck: The blades, straight or curved, extend from a foundation near the ground to the ridge. A full cruck does not need a tie beam and may be called a "full cruck - open" or with a tie beam a "full cruck - closed". [7] Base cruck: The tops of the blades are truncated by the first transverse member such as by a tie beam. [7]
Vigas are wooden beams used in the traditional adobe architecture of the American Southwest, especially in New Mexico.In this type of construction, the vigas are the main structural members carrying the weight of the roof to the load-bearing exterior walls.