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. A viaduct (a long bridge) may be made from a series of arches, although other more economical structures are typically used today.
Other articles related to "arch bridges, bridge, arch, arch bridge, bridges":
... Most modern arch bridges are made from reinforced concrete ... This type of bridge is suitable where a temporary centring may be erected to support the forms, reinforcing steel, and uncured concrete ... to construct a reinforced concrete arch from precast concrete, where the arch is built in two halves which are then leaned against each other ...
... The masonry arch bridges of stone or brick are the most genuine of arch bridges, some lasting a thousand years ... Yet arch bridges using rough hewn stones like Changhong Bridge need mortar to stand ... by facade stone for decoration are not to be included in this list, the load-bearing part of the arch should be cut stone or brick, or as follows ...
... This is the timeline of the 3 longest supported deck arch bridge spans in the world, where the road deck lies on top of the arch ... columns, truss, rubble or lies directly on the arch ... These bridges are often found in narrow valleys ...
... Tied arch bridges have an arch-shaped superstructure, but differ from conventional arch bridges ... Instead of transferring the weight of the bridge and traffic loads into thrust forces into the abutments, the ends of the arches are restrained by tension in the bottom ...
... A tied-arch bridge is an arch bridge in which the outward-directed horizontal forces of the arch, or top chord, are borne as tension by the bottom chord (either tie ... Thrusts downward on such a bridge's deck are translated, as tension, by vertical ties of the deck to the curved top chord, tending to flatten it and thereby to push its tips outward into ... However, in a tied-arch or bowstring bridge, these movements are restrained not by the abutments but by the bottom chord, which ties these tips together, taking the thrusts as tension ...
Famous quotes containing the words bridges and/or arch:
“... this single span,
Reaching for the world, as our lives do,
As all lives do, reaching that we may give
The best of what we are and hold as true:
Always it is by bridges that we live.”
—Philip Larkin (19221986)
“Concords little arch does not span all our fate, nor is what transpires under it law for the universe.”
—Henry David Thoreau (18171862)