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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 Tomlinson Lumber Co sold pre-cut materials for a 34 by 50 feet (10 m × 15 m) dairy barn with a Gothic-arched roof supported by three-ply rafters in 1958 throughout Minnesota. [ 10 ] The first published plans by an architect for a Gothic-arch barn appeared in 1916.
The truss roof of the 4th-century church Old St. Peter's Basilica, Rome. The triangular frame of beams of the main nave is largely self-supporting, as the forces are carried along the beams rather than acting vertically on them. The list of ancient roofs comprises roof constructions from Greek and Roman architecture, ordered by clear span.
Jack rafter, cripple rafter, cripple-jack rafter: A shortened rafter such as landing on a hip rafter or interrupted by a dormer. Arched rafter: Of segmental form in an arched roof. Knee (crook, kneeling, cranked) rafter: A rafter with a bend typically a few feet from the foot used to gain attic space like adding a kneewall. Rare in America.
A shingle roof in Zakopane, Poland. With an area of 6000 m 2 (1½ acres), it was one of the largest wooden shingle roofs in Europe. A roof’s shingles are a roof covering consisting of individual overlapping elements. These elements are typically flat, rectangular shapes laid in courses from the bottom edge of the roof up, with each successive ...
A single arch-braced truss. 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 ...
INTERIOR VIEW SOUTH TOWARD MOVEABLE FIELD LEVEL SEATS. - Houston Astrodome, 8400 Kirby Drive, Houston, Harris County, TX HAER TX-108-9. The Lamella roof (also sometimes called the "Zollinger roof" for its inventor Friedrich Zollinger, a municipal building surveyor from Merseburg in the German state of Saxony-Anhalt [1]) is a construction type where the roof is supported by an arched network of ...
The gable roof [2] is so common because of the simple design of the roof timbers and the rectangular shape of the roof sections. This avoids details which require a great deal of work or cost and which are prone to damage. If the pitch or the rafter lengths of the two roof sections are different, it is described as an 'asymmetrical gable roof'.