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An arch bridge is a bridge with abutments at each end shaped as a curved arch.Arch bridges work by transferring the weight of the bridge and its loads partially into a horizontal thrust restrained by the abutments at either side, and partially into a vertical load on the arch supports.
This list of the longest arch bridge spans ranks the world's arch bridges by the length of their main span. The length of the main span is the most common way to rank bridges as it usually correlates with the engineering complexity involved in designing and constructing the bridge. [ 1 ]
The masonry arch bridges of stone or brick are the most genuine of arch bridges, some lasting a thousand years. Because they are made of worked stone, there is a slight chance they might even stand without mortar, like the Pont du Gard aqueduct. Yet arch bridges using rough hewn stones like Changhong Bridge need mortar to stand.
Semicircular arch Old bridge of Gien The semicircular arch consists of a complete semicircle and is the most common type of arch. It accounts for about 67% of the masonry railroad bridges in the French network. These vaults can be raised (as in the old Gien bridge), slightly extended beyond the semicircle, or reduced.
Pages in category "Arch bridges" The following 74 pages are in this category, out of 74 total. This list may not reflect recent changes. ...
The through arch bridge usually consists of two ribs, [5] although there are examples like the Hulme Arch Bridge of through arches with a single rib. When the two arches are built in parallel planes, the structure is a parallel rib arch bridge. When the two arch ribs lean together and shorten the distance between the arches near the top, the ...
The Ponte Vecchio (Italian pronunciation: [ˈponte ˈvɛkkjo]; [1] "Old Bridge") [2] is a medieval stone closed-spandrel segmental arch bridge over the Arno, in Florence, Italy.The only bridge in Florence spared from destruction during World War II, it is noted for the shops built along it; building shops on such bridges was once a common practice.
The Oregon City Bridge, also known as the Arch Bridge, is a steel through arch bridge spanning the Willamette River between Oregon City and West Linn, Oregon, United States. Completed in 1922, it is listed on the National Register of Historic Places . [ 2 ]