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American historic carpentry is the historic methods with which wooden buildings were built in what is now the United States since European settlement. A number of methods were used to form the wooden walls and the types of structural carpentry are often defined by the wall, floor, and roof construction such as log, timber framed, balloon framed ...
The Romans substituted bronze for wood in the roof truss(s) of the Pantheon's portico which was commissioned between 27 BC and 14 AD. The bronze trusses were unique but in 1625 Pope Urban VIII had the trusses replaced with wood and melted the bronze down for other uses. The Romans also made bronze roof tiles.
A South Australian Railways passenger car built in 1918 with queen post trusses. The queen posts are the two vertical components; the short horizontal tube at the mid-point of the truss rod is the turnbuckle, which is adjusted by rotating to achieve the desired support of the car's frame.
The earliest bridges in North America were made of wood, which was abundant and cheaper than stone or masonry. Early wooden bridges were usually of the Towne lattice truss or Burr truss design. Some later bridges were McCallum trusses (a modification of the Burr truss). About 1840, iron rods were added to wooden bridges.
A truss roof with tongue and groove sheathing. The gap in the sheathing at the ridge is the space designed to allow natural ventilation. Pre-manufactured roof trusses come in a wide variety of styles. They are designed by the manufacturer for each specific building. Timber trusses also are built in a variety of styles using wood or metal joints.
The improved strength of the Gang-Nail plate was evidenced in 1992 when Hurricane Andrew destroyed many homes in South Florida but homes built with Gang-Nail plates were far more likely to survive than those with toe-nailed trusses. Gang-Nails are also used in the manufacturing of floor trusses, premanufactured wall panels, modular housing and ...
Over 200 such barns were built in 1886-1942 by Wells and his sons, mostly in Western New York. This design utilized a unique truss with the lower chord Gothic-arch-shaped. This design utilized a unique truss with the lower chord Gothic-arch-shaped.
Few iron truss bridges were built in the United States before 1850. Truss bridges became a common type of bridge built from the 1870s through the 1930s. Examples of these bridges still remain across the US, but their numbers are dropping rapidly as they are demolished and replaced with new structures.
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