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[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.
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.
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 first Howe truss ever built was a single-lane, 75-foot (23 m) long bridge in Connecticut carrying a road. [1] The second was a railroad bridge over the Connecticut River in Springfield, Massachusetts. This bridge, which drew extensive praise and attention, [3] had seven spans and was 180 feet (55 m) in length. [1] Both bridges were erected ...
The king post is the central, vertical member of the truss. Crown posts in the nave roof at Old Romney church, Kent, England. A king post (or king-post or kingpost) is a central vertical post used in architectural or bridge designs, working in tension to support a beam below from a truss apex above (whereas a crown post, though visually similar, supports items above from the beam below).
The Pauli truss is a variant of the lenticular truss, "with the top chord carefully shaped so that it has a constant force along the entire length of the truss." [19] It is named after Friedrich Augustus von Pauli , whose 1857 railway bridge (the Großhesseloher Brücke ) spanned the Isar near Munich.
On April 6, 2001, the reconstructed wooden footbridge was opened, being the longest wooden bridge in Switzerland. The Kapellbrücke is a 204-metre-long (669 ft) bridge crossing the Reuss in the city of Lucerne in Switzerland. It is the oldest wooden covered bridge in Europe, and one of Switzerland's main tourist attractions.
Several other Fink trusses held world records for their time including the Green River Bridge (c. 1858) carrying the Louisville and Nashville Railroad over its namesake river near Munfordville, Kentucky, and the first bridge to span the Ohio River which included a 396-foot span built between 1868 and 1870. [2]