Ancestor | Cantilever bridge, cable-stayed bridge |
---|---|
Related | Side-spar cable-stayed bridge |
Descendant | None |
Carries | Pedestrians, Light Rail |
Span range | Short to Medium |
Material | Steel, prestressed concrete |
Movable | One example can swing |
Design effort | High |
Falsework required | No |
A cantilever spar cable-stayed bridge is a modern variation of the cable-stayed bridge. This design has been pioneered by the structural engineer Santiago Calatrava in 1992 with the Puente del Alamillo in Seville, Spain. In two of his designs the force distribution does not depend solely upon the cantilever action of the spar (pylon); the angle of the spar away from the bridge and the weight distribution in the spar serve to reduce the overturning forces applied to the footing of the spar. In contrast, in his swinging Puente de la Mujer design (2002), the spar reaches toward the cable supported deck and is counterbalanced by a structural tail. In the Assut de l'Or Bridge (2008), the curved backward pylon is back-stayed to concrete counterweights.
A cable-stayed bridge has one or more towers, from which cables support the bridge deck. A distinctive feature are the cables or stays, which run directly from the tower to the deck, normally forming a fan-like pattern or a series of parallel lines. This is in contrast to the modern suspension bridge, where the cables supporting the deck are suspended vertically from the main cable, anchored at both ends of the bridge and running between the towers. The cable-stayed bridge is optimal for spans longer than cantilever bridges and shorter than suspension bridges. This is the range within which cantilever bridges would rapidly grow heavier, and suspension bridge cabling would be more costly.
Santiago Calatrava Valls is a Spanish architect, structural engineer, sculptor and painter, particularly known for his bridges supported by single leaning pylons, and his railway stations, stadiums, and museums, whose sculptural forms often resemble living organisms. His best-known works include the Olympic Sports Complex of Athens, the Milwaukee Art Museum, the Turning Torso tower in Malmö, Sweden, the World Trade Center Transportation Hub in New York City, the Auditorio de Tenerife in Santa Cruz de Tenerife, the Margaret Hunt Hill Bridge in Dallas, Texas, and his largest project, the City of Arts and Sciences and Opera House in his birthplace, Valencia. His architectural firm has offices in New York City, Doha, and Zürich.
The Sundial Bridge is a cantilever spar cable-stayed bridge for bicycles and pedestrians that spans the Sacramento River in Redding, California, United States and forms a large sundial. It was designed by Santiago Calatrava and completed in 2004 at a cost of US$23.5 million. The bridge has become iconic for Redding.
The City of Arts and Sciences is a cultural and architectural complex in the city of Valencia, Spain. It is the most important modern tourist destination in the city of Valencia and one of the 12 Treasures of Spain.
The Puente de la Mujer is a rotating footbridge for Dock 3 of the Puerto Madero commercial district of Buenos Aires, Argentina. It is of the cantilever spar cable-stayed bridge type and is also a swing bridge, but somewhat unusual in its asymmetrical arrangement. It has a single mast with cables suspending a portion of the bridge which rotates 90 degrees in order to allow water traffic to pass. When it swings to allow watercraft passage, the far end comes to a resting point on a stabilizing pylon.
The Alamillo Bridge is a structure in Seville, Andalucia (Spain), which spans the Canal de Alfonso XIII, allowing access to La Cartuja, a peninsula located between the canal and the Guadalquivir River. The bridge was constructed as part of infrastructure improvements for Expo 92, which was held on large banana farms on the island. Construction of the bridge began in 1989 and was completed in 1992 from a design by Santiago Calatrava.
The Zubizuri, also called the Campo Volantin Bridge or Puente del Campo Volantin, is a tied arch footbridge across the Nervion River in Bilbao, Spain. Designed by architect Santiago Calatrava, the bridge links the Campo Volantin right bank and Uribitarte left bank of the river.
The Erasmusbrug is a combined cable-stayed and bascule bridge, construction began in 1986 and was completed in 1996. It crosses the Nieuwe Maas in the centre of Rotterdam, connecting the north and south parts of this city, second largest in the Netherlands. The bridge was named in 1992 after Desiderius Erasmus, a prominent Christian Renaissance humanist also known as Erasmus of Rotterdam. The Erasmus Bridge is Rotterdam's most important landmark and is even part of the city's official logo.
Puente de la Unidad or Viaducto de la Unidad is a cantilever spar cable-stayed bridge designed by Óscar Bulnes that crosses the Santa Catarina River and connects the cities of Monterrey and San Pedro Garza García in the Mexican state of Nuevo León. It is part of a circuit called "Circuito La Unidad", which would consist of the interconnection of a series of avenues.
Puente, a word meaning bridge in Spanish language, may refer to:
The Chords Bridge, also called the Bridge of Strings or Jerusalem Light Rail Bridge, is a side-spar cable-stayed bridge in Jerusalem. The structure was designed by the Spanish architect and engineer Santiago Calatrava and is used by Jerusalem Light Rail's Red Line, which began service on August 19, 2011. Incorporated in the bridge is a glass-sided pedestrian bridge enabling pedestrians to cross from Kiryat Moshe to the Jerusalem Central Bus Station. The bridge, which cost about $70 million, was inaugurated on June 25, 2008.
Samuel Beckett Bridge is a cable-stayed swingbridge in Dublin, Ireland that joins Sir John Rogerson's Quay on the south side of the River Liffey to Guild Street and North Wall Quay in the Docklands area.
The Assut de l'Or Bridge is a white single-pylon cable-stayed bridge in the City of Arts and Sciences in Valencia, Spain, designed by Valencian architect and civil engineer Santiago Calatrava and completed in December 2008. The name l'Assut de l'Or is Valencian for the Dam of the Gold and refers to a dam that was located nearby, although locally it is referred to as El Jamonero or Pont de l'Arpa, Spanish: Puente del Arpa. Calatrava called it the Serreria Bridge.
Mariánský most is a cantilever spar cable-stayed bridge for the road transport, bicycles and pedestrians in the city of Ústí nad Labem, Czech Republic. It was opened in 1998 and is the third bridge in the city. It was designed by the architect Roman Koucký.
The San Francesco di Paola Bridge or Cosenza Bridge is a road bridge in Cosenza, Italy, designed by Spanish architect Santiago Calatrava.
The Tirantes Bridge is a cantilever spar cable-stayed bridge that crosses the Lérez River in the city of Pontevedra, Spain, linking the south bank to the north bank at the level of the city's Congress Hall.