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Advancing framing techniques for trusses made of dimensional lumber led to the gambrel roof, which was strong and free of heavy timbers. The Shawver truss—introduced in 1904 and invented by John L Shawver of Bellefontaine, Ohio—made of laminated straight boards, became a popular technique for framing gambrel roofs. This design required ...
Bonnet roof: A reversed gambrel or Mansard roof with the lower portion at a lower pitch than the upper portion. Monitor roof: A roof with a monitor; 'a raised structure running part or all of the way along the ridge of a double-pitched roof, with its own roof running parallel with the main roof.'
Gambrel is a Norman English word, sometimes spelled gambol such as in the 1774 Boston carpenters' price book (revised 1800). Other spellings include gamerel, gamrel, gambril, gameral, gambering, cambrel, cambering, chambrel [4] referring to a wooden bar used by butchers to hang the carcasses of slaughtered animals. [1]
[6] [a] Sometimes a Palladian truss is defined as a compound truss with a queen post and king post truss in the same assembly. [7] The queen post truss and the king post truss may be combined, by using the straining beam of the queen post truss as the tie beam for a king post truss above. [8] Such combinations are known as compound trusses.
A variation of a plank framed truss with metal plate connectors on a pole barn. Plank framed truss was the name for roof trusses made with planks rather than timber roof trusses. In the 20th century, it was typical for carpenters to make their own trusses by nailing planks together with wood plates at the joints.
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.
Dutch Colonial is a style of domestic architecture, primarily characterized by gambrel roofs having curved eaves along the length of the house. Modern versions built in the early 20th century are more accurately referred to as "Dutch Colonial Revival", a subtype of the Colonial Revival style.
The Braga Bridge is a continuous truss bridge. It was the fourth longest span of this type when it was completed in 1966. This list of continuous bridge spans ranks the world's continuous truss bridges in two listings: The first is ranked by the length of main span (the longest length of unsupported roadway) and the second by the total length of continuous truss spans.