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The 1865 Annual Report of the President and Directors of the Louisville and Nashville Railroad Company lists 29 Fink Truss bridges out of a total of 66 bridges on the railroad. The first Fink Truss bridge was built by the Baltimore and Ohio Railroad in 1852 to span the Monongahela River at Fairmont, Virginia (now West Virginia). It consisted of ...
Ohio and Erie Canal, Tinkers Creek Aqueduct: Replaced Pratt truss: 1826 1986 Ohio and Erie Canal: Tinkers Creek: Valley View: Cuyahoga: OH-61: Ohio and Erie Canal, Furnace Run Aqueduct Ruin Bowstring arch truss: 1859 1986 Ohio and Erie Canal
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 ...
It specialized in the fabrication of iron truss bridges and was a prolific bridge builder in the late 19th century. It was one of the 28 firms consolidated by J. P. Morgan into the American Bridge Company in 1900. [ 1 ]
He revived a technology of Childs truss bridges, of which only a handful of examples—perhaps only seven according to a 2003 report—survive in the United States. The Childs truss was patented by Horace Childs in 1846. It never became popular, but, after its patent expired, was adopted by Sherman for bridges in Ohio late in the 1800s.
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 ...
One of the most popular designs was the Burr Truss, patented in 1817, which used an arch to bear the load, while the trusses kept the bridge rigid. Other designs included the King, Queen, Lattice, and Howe trusses. Early trusses were designed with only a rough understanding of the engineering dynamics at work. [9]
It can be subdivided, creating Y- and K-shaped patterns. The Pratt truss was invented in 1844 by Thomas and Caleb Pratt. [29] [30] This truss is practical for use with spans up to 250 feet (76 m) and was a common configuration for railroad bridges as truss bridges moved from wood to metal.