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Humpback Bridge
A humpback bridge (or hump bridge) is a name for a type of bridge, specifically an arch bridge, where the span is higher than the ramps on either side, forming a hump-like arrangement. Examples include Chinese and Japanese moon bridge A moon bridge (月桥), also known as “''sori-bashi"'' (反り橋) in Japanese, or as a drum bridge (“taiko-bashi” 太鼓橋),Liu, Yan (2020-09-01). "A full moon in another land: The Moon Bridge in the Japanese garden of the Huntington Libra ...s and the Humpback Covered Bridge in the United States. Humpback {{bridge-type-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bridge
A bridge is a structure built to span a physical obstacle (such as a body of water, valley, road, or rail) without blocking the way underneath. It is constructed for the purpose of providing passage over the obstacle, which is usually something that is otherwise difficult or impossible to cross. There are many different designs of bridges, each serving a particular purpose and applicable to different situations. Designs of bridges vary depending on factors such as the function of the bridge, the nature of the terrain where the bridge is constructed and anchored, and the material used to make it, and the funds available to build it. The earliest bridges were likely made with fallen trees and stepping stones. The Neolithic people built boardwalk bridges across marshland. The Arkadiko Bridge (dating from the 13th century BC, in the Peloponnese) is one of the oldest arch bridges still in existence and use. Etymology The '' Oxford English Dictionary'' traces the origin of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bridge
A bridge is a structure built to span a physical obstacle (such as a body of water, valley, road, or rail) without blocking the way underneath. It is constructed for the purpose of providing passage over the obstacle, which is usually something that is otherwise difficult or impossible to cross. There are many different designs of bridges, each serving a particular purpose and applicable to different situations. Designs of bridges vary depending on factors such as the function of the bridge, the nature of the terrain where the bridge is constructed and anchored, and the material used to make it, and the funds available to build it. The earliest bridges were likely made with fallen trees and stepping stones. The Neolithic people built boardwalk bridges across marshland. The Arkadiko Bridge (dating from the 13th century BC, in the Peloponnese) is one of the oldest arch bridges still in existence and use. Etymology The '' Oxford English Dictionary'' traces the origin of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arch Bridge
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. History Possibly the oldest existing arch bridge is the Mycenaean Arkadiko Bridge in Greece from about 1300 BC. The stone corbel arch bridge is still used by the local populace. The well-preserved Hellenistic Eleutherna Bridge has a triangular corbel arch. The 4th century BC Rhodes Footbridge rests on an early voussoir arch. Although true arches were already known by the Etruscans and ancient Greeks, the Romans were – as with the vault and the dome – the first to fully realize the potential of arches for bridge construction. A list of Roman bridges compiled by the engineer Colin O'Connor featur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Span (architecture)
Span is the distance between two intermediate supports for a structure, e.g. a beam (structure), beam or a bridge. A span can be closed by a solid beam or by a rope. The first kind is used for bridges, the second one for power lines, overhead telecommunication lines, some type of Antenna (radio), antennas or for aerial tramways. The span is a significant factor in finding the strength and size of a beam as it determines the maximum bending moment and Deflection (engineering), deflection. The maximum bending moment M_ and deflection \delta_in the pictured beam is found using: :M_ = \frac :\delta_ = \frac = \frac where :q = Uniformly distributed load :L = Length of the beam between two supports (span) :E = Modulus of elasticity :I = Area moment of inertia Note that the maximum bending moment and deflection occur midway between the two supports. From this it follows that if the span is doubled, the maximum moment (and with it the tensile stress, stress) will quadruple, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inclined Plane
An inclined plane, also known as a ramp, is a flat supporting surface tilted at an angle from the vertical direction, with one end higher than the other, used as an aid for raising or lowering a load. The inclined plane is one of the six classical simple machines defined by Renaissance scientists. Inclined planes are used to move heavy loads over vertical obstacles. Examples vary from a ramp used to load goods into a truck, to a person walking up a pedestrian ramp, to an automobile or railroad train climbing a grade. Moving an object up an inclined plane requires less force than lifting it straight up, at a cost of an increase in the distance moved. The mechanical advantage of an inclined plane, the factor by which the force is reduced, is equal to the ratio of the length of the sloped surface to the height it spans. Owing to conservation of energy, the same amount of mechanical energy (work) is required to lift a given object by a given vertical distance, disregarding losses ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moon Bridge
A moon bridge (月桥), also known as “''sori-bashi"'' (反り橋) in Japanese, or as a drum bridge (“taiko-bashi” 太鼓橋),Liu, Yan (2020-09-01). "A full moon in another land: The Moon Bridge in the Japanese garden of the Huntington Library". ''Frontiers of Architectural Research''. 9 (3): 556–567. doi:10.1016/j.foar.2020.02.004. ISSN 2095-2635. is a highly arched pedestrian bridge. The moon bridge originated in China and was later introduced to Japan, where it became synonymous with Japanese landscape architecture. However, the general shape of this bridge can be seen throughout East Asian cultures. Generally, these bridges are non-functional, serving as ornamentation.Barnett, Tara (2022-10-12). "What Is a Moon Bridge?". ''All the Science''. Retrieved 2022-11-10. However, they were originally designed to allow pedestrians to cross canals while allowing the passage of barges beneath. To achieve this height in normal bridge construction, significant space from the river ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Humpback Covered Bridge
The Humpback Covered Bridge located in the U.S. state of Virginia, is one of the few remaining covered bridges in the United States that was built higher in the middle than on either end; hence the name of "humpback". The bridge was built in 1857 and is also the oldest remaining covered bridge in the state of Virginia. Its WGCB number is 46-03-01. The bridge spans a tributary of the Jackson River known as Dunlap Creek, for a distance of . The humpback feature is higher in the center than at either end. The bridge is located near the city of Covington, Virginia. History Covered bridges were first built in the 1810s when it was determined that adding a roof over wooden bridges would better protect the decking and support trusses and increase the lifespan of the bridge. The decking and support systems of the era would last an average of ten years on uncovered wooden bridges. As was later discovered, covered wooden bridges ultimately averaged ten times the lifespan of uncovered ones ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
