The Alamillo Bridge (Spanish: Puente del Alamillo) 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.[2]
The Puente del Alamillo, viewed from the left (east) side of the Guadalquivir river.Elevated lane for walkers and bikers, three lanes of traffic on both sides
The static concept of the bridge can be traced back to the 1986 sculpture by Calatrava entitled 'Running Torso', in which inclined stacked marble cubes are balanced by a tensioned wire. The Alamillo Bridge consists of a single straight steel-shell tower, infilled with reinforced concrete and inclined backward, counterbalancing a 200 m span with thirteen pairs of cables. Since the weight of the tower is made to be sufficient to counter-balance the deck, back stays are thus not required, effectively substituting the weight of an inclined tower for one set of stay cables. In this way, a new type of cantilever spar cable-stayed bridge was conceived in 1987.[3]
The original intent was to build two symmetrical bridges on either side of the island, but in the end the Alamillo's singular asymmetric design has proved most striking.[3]
The bridge deck consists of an hexagonal steel-box-beam spine to which the stay cables are attached. Side steel wings cantilevered off the hexagonal spine support the traffic decks, three lanes on each side. The top of the hexagonal spine, elevated 1.6 meters (5 feet) above the road level, serves as an elevated footway and cycle lane in between the traffic lanes.[1]
This bridge represented the soaring aspirations of the city of Seville in preparation for Expo '92, and is visible from the top of La Giralda, the former minaret which is the sentimental roof of the city, linking Seville's past and present. Similar to the Brooklyn Bridge, there is an elevated walkway for pedestrians. In addition to the elevated walkway, the Alamillo Bridge features a lookout at the top of the inclined tower, accessible by a stairway enclosed within the tower.
The Alamillo Bridge is the first cable-stayed bridge that is balanced solely through the weight of the massive tower, not requiring any type of back stays or anchorage. There are 54 steel piles under the bridge, acting passively under the tower. Calatrava's Sundial Bridge in Redding, California (2004), the Mesoghion Avenue Footbridge in Athens and Chords Bridge in Jerusalem (2008) are similar in design to the Alamillo Bridge.
CritiqueEdit
1992 Alamillo Bridge1996 Erasmus Bridge
While the Alamillo Bridge is dramatic and widely acclaimed aesthetically,[4] an analysis of its structural engineering show that it has an inefficient dynamic structural form because of the lack of backstays or anchorage to provide a restoring force under changing loads. One indication of this is the extreme weight of the pylon member needed in the Alamillo Bridge compared with other cable-stayed bridges such as the Erasmus Bridge in Rotterdam, which has a backward-inclined pylon and backstays. The total mass of the pylon of the Alamillo Bridge is over 10 times the pylon mass of the Erasmus Bridge, which has even a longer span than the Alamillo.[5]
^ ab"Puente de Alamillo (Harp Bridge) Seville, Andalusia, Spain". bristol.ac.uk. Retrieved 11 May 2020. 44 Pictures from Robert Gregory & David Blockley, UK - September 2008
^Pollalis, Spiro N. (August 2002). What Is a Bridge? The Making of Calatrava's Bridge in Seville. MIT Press. pp. 199, 146 illus. ISBN9780262661348.
^McQuaid, Matilda. "Santiago Calatrava : structure and expression" (PDF). MOMA. The Museum of Modern Art: Distributed by H.N. Abrams. Retrieved 13 May 2020.
^Guest, James K.; Draper, Powell; Billington, David P. (October 2013). "Santiago Calatrava's Alamillo Bridge and the Idea of the Structural Engineer as Artist". ASCE library. Journal of Bridge Engineering 18 (10), 936-945. doi:10.1061/(ASCE)BE.1943-5592.0000445. Retrieved 13 May 2020. Here a thorough structural analysis of one of Calatrava's most well known bridges is performed to determine how well it achieves the goals of structural engineering.
External linksEdit
Wikimedia Commons has media related to Puente del Alamillo.
alamillo, bridge, spanish, puente, alamillo, structure, seville, andalucia, spain, which, spans, canal, alfonso, xiii, allowing, access, cartuja, peninsula, located, between, canal, guadalquivir, river, bridge, constructed, part, infrastructure, improvements, . The Alamillo Bridge Spanish Puente del Alamillo 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 2 Alamillo BridgeThe Alamillo Bridge at nightCoordinates37 24 48 N 5 59 25 W 37 41333 N 5 99028 W 37 41333 5 99028Carriesthree lanes of motor vehicles on each side separate and elevated center lane for pedestrians and bicycles 1 CrossesGuadalquivir riverLocaleSeville Andalusia Spain Preceded byPasarela de San JeronimoFollowed byPuente de la BarquetaCharacteristicsDesignCantilever spar cable stayed bridge with no backstays or anchorageTotal length250 mHeight140 m with tower inclined backward 32 degrees from verticalLongest span200 mHistoryDesignerSantiago CalatravaLocation Contents 1 Design 2 Critique 3 See also 4 References 5 External linksDesign Edit The Puente del Alamillo viewed from the left east side of the Guadalquivir river Elevated lane for walkers and bikers three lanes of traffic on both sidesThe static concept of the bridge can be traced back to the 1986 sculpture by Calatrava entitled Running Torso in which inclined stacked marble cubes are balanced by a tensioned wire The Alamillo Bridge consists of a single straight steel shell tower infilled with reinforced concrete and inclined backward counterbalancing a 200 m span with thirteen pairs of cables Since the weight of the tower is made to be sufficient to counter balance the deck back stays are thus not required effectively substituting the weight of an inclined tower for one set of stay cables In this way a new type of cantilever spar cable stayed bridge was conceived in 1987 3 The original intent was to build two symmetrical bridges on either side of the island but in the end the Alamillo s singular asymmetric design has proved most striking 3 The bridge deck consists of an hexagonal steel box beam spine to which the stay cables are attached Side steel wings cantilevered off the hexagonal spine support the traffic decks three lanes on each side The top of the hexagonal spine elevated 1 6 meters 5 feet above the road level serves as an elevated footway and cycle lane in between the traffic lanes 1 This bridge represented the soaring aspirations of the city of Seville in preparation for Expo 92 and is visible from the top of La Giralda the former minaret which is the sentimental roof of the city linking Seville s past and present Similar to the Brooklyn Bridge there is an elevated walkway for pedestrians In addition to the elevated walkway the Alamillo Bridge features a lookout at the top of the inclined tower accessible by a stairway enclosed within the tower The Alamillo Bridge is the first cable stayed bridge that is balanced solely through the weight of the massive tower not requiring any type of back stays or anchorage There are 54 steel piles under the bridge acting passively under the tower Calatrava s Sundial Bridge in Redding California 2004 the Mesoghion Avenue Footbridge in Athens and Chords Bridge in Jerusalem 2008 are similar in design to the Alamillo Bridge Critique Edit 1992 Alamillo Bridge 1996 Erasmus BridgeWhile the Alamillo Bridge is dramatic and widely acclaimed aesthetically 4 an analysis of its structural engineering show that it has an inefficient dynamic structural form because of the lack of backstays or anchorage to provide a restoring force under changing loads One indication of this is the extreme weight of the pylon member needed in the Alamillo Bridge compared with other cable stayed bridges such as the Erasmus Bridge in Rotterdam which has a backward inclined pylon and backstays The total mass of the pylon of the Alamillo Bridge is over 10 times the pylon mass of the Erasmus Bridge which has even a longer span than the Alamillo 5 See also EditPuente de la Mujer Buenos Aires Argentina Samuel Beckett Bridge Dublin Ireland Sundial Bridge at Turtle Bay California United States Puente de la Unidad Monterrey Mexico Erasmus Bridge Rotterdam NetherlandsReferences Edit a b Puente de Alamillo Harp Bridge Seville Andalusia Spain bristol ac uk Retrieved 11 May 2020 44 Pictures from Robert Gregory amp David Blockley UK September 2008 Pollalis Spiro N August 2002 What Is a Bridge The Making of Calatrava s Bridge in Seville MIT Press pp 199 146 illus ISBN 9780262661348 a b Calatrava Santiago Alamillo Bridge amp Cartuja Viaduct calatrava com Retrieved 11 May 2020 McQuaid Matilda Santiago Calatrava structure and expression PDF MOMA The Museum of Modern Art Distributed by H N Abrams Retrieved 13 May 2020 Guest James K Draper Powell Billington David P October 2013 Santiago Calatrava s Alamillo Bridge and the Idea of the Structural Engineer as Artist ASCE library Journal of Bridge Engineering 18 10 936 945 doi 10 1061 ASCE BE 1943 5592 0000445 Retrieved 13 May 2020 Here a thorough structural analysis of one of Calatrava s most well known bridges is performed to determine how well it achieves the goals of structural engineering External links Edit Wikimedia Commons has media related to Puente del Alamillo Puente del Alamillo on en broer no Puente del Alamillo in Factoria Urbana Photos and technical information about the bridge Alamillo Bridge at Structurae Alamillo Bridge WikiArquitectura Archived 2015 01 02 at the Wayback Machine 37 24 48 N 5 59 25 W 37 41333 N 5 99028 W 37 41333 5 99028 Retrieved from https en wikipedia org w index php title Alamillo Bridge amp oldid 1169636696, wikipedia, wiki, book, books, library,
