Dongting Lake Bridge
Encyclopedia
The Dongting Lake Bridge is a bridge with cable-stayed bridge
section over Dongting Lake
in northeastern Hunan
Province, China
. The bridge was completed in 2002 at a cost of $920 million. Cable-stayed section consists of three tower supporting a center spans of 310 m each and two identical side spans of 130 m each.
The Dongting Lake bridge is one of a handful of "next generation" bridges, worldwide, and includes cable dampers that use magnetorheological fluid
which have the capability to change viscosity
in response to an electromagnetic field
. The bridge includes four lanes of traffic—two lanes in each direction.
Cable-stayed bridge
A cable-stayed bridge is a bridge that consists of one or more columns , with cables supporting the bridge deck....
section over Dongting Lake
Dongting Lake
Dongting Lake, or Lake Dongting is a large, shallow lake in northeastern Hunan province, China. It is a flood basin of the Yangtze River . Hence the lake's size depends on the season...
in northeastern Hunan
Hunan
' is a province of South-Central China, located to the south of the middle reaches of the Yangtze River and south of Lake Dongting...
Province, China
China
Chinese civilization may refer to:* China for more general discussion of the country.* Chinese culture* Greater China, the transnational community of ethnic Chinese.* History of China* Sinosphere, the area historically affected by Chinese culture...
. The bridge was completed in 2002 at a cost of $920 million. Cable-stayed section consists of three tower supporting a center spans of 310 m each and two identical side spans of 130 m each.
The Dongting Lake bridge is one of a handful of "next generation" bridges, worldwide, and includes cable dampers that use magnetorheological fluid
Magnetorheological fluid
A magnetorheological fluid is a type of smart fluid in a carrier fluid, usually a type of oil. When subjected to a magnetic field, the fluid greatly increases its apparent viscosity, to the point of becoming a viscoelastic solid. Importantly, the yield stress of the fluid when in its active state...
which have the capability to change viscosity
Viscosity
Viscosity is a measure of the resistance of a fluid which is being deformed by either shear or tensile stress. In everyday terms , viscosity is "thickness" or "internal friction". Thus, water is "thin", having a lower viscosity, while honey is "thick", having a higher viscosity...
in response to an electromagnetic field
Electromagnetic field
An electromagnetic field is a physical field produced by moving electrically charged objects. It affects the behavior of charged objects in the vicinity of the field. The electromagnetic field extends indefinitely throughout space and describes the electromagnetic interaction...
. The bridge includes four lanes of traffic—two lanes in each direction.