مهندسی عمران ایران

مطالب عمومی مهندسی عمران معماری شهرسازی

مهندسی عمران ایران

مطالب عمومی مهندسی عمران معماری شهرسازی

Barcelona

Barcelona is the capital and the most populous city of Catalonia and the second largest city in Spain, after Madrid, with a population of 1,621,537 within its administrative limits on a land area of 101.4 km2 (39 sq mi). The urban area of Barcelona extends beyond the administrative city limits with a population of over 4,200,000[1][2] on an area of 803 km2 (310 sq mi),[1] being the sixth-most populous urban area in the European Union after Paris,London, Ruhr area, Madrid and Milan. About five million[3][4][5] people live in the Barcelona metropolitan area. It is also Europe's largest metropolis on theMediterranean coast. It is the main component of a union of adjacent cities and municipalities named the Àrea Metropolitana de Barcelona (AMB) with a population of 3,218,071 in an area of 636 km² (density 5,060 hab/km²). It is located on the Mediterranean coast between the mouths of the rivers Llobregat and Besòs and is bounded to the west by the Serra de Collserola ridge (512 m/1,680 ft).

Barcelona is today one of the world's leading tourist, economic and cultural centres, and its influences in commerce, education, entertainment, media, fashion,science, and the arts all contribute to its status as one of the world's major global cities.[6][7] Indeed, it is a major economic centre and a growing financial centre (Diagonal Mar area); one of Europe's principal Mediterranean ports can be found here as well as Barcelona international airport, which handles about 30 million passengers per year. It also boasts an extensive motorway network and is a hub of high-speed rail, particularly that which will link France with Spain and laterPortugal. Barcelona was the 12th-most-visited city in the world and 4th most visited in Europe after Paris, London, and Rome. It is in addition the most popular tourist destination in Spain (receiving over 5 million tourists every year).[8] Barcelona is the 16th most "livable city" in the world according to lifestyle magazineMonocle.[9] Similarly, according to Innovation Analysts 2thinknow, Barcelona occupies 13th place in the world on Innovation Cities™ Global 256 Index.[10] It is the4th richest city by GDP in the European Union and 35th in the world with an output amounting to €177 billion, a figure nonetheless smaller than alternative estimates.[11] Consequently, its GDP per capita output stands at €35,975 – some 44% higher than the European Union average. Similarly, the city of Barcelona stands in 29th place in a list of net personal earnings headed by Zurich.[12] The city is Europe's 3rd and one of the world's most successful as a city brand, both in terms of reputation and assets.[13]

Founded as a Roman city, Barcelona became the capital of the Counts of Barcelona. After merging with the Kingdom of Aragon, it became one of the most important cities of the Crown of Aragon. Besieged several times during its history, Barcelona is today an important cultural centre and a major tourist destinationand has a rich cultural heritage. Particularly renowned are architectural works of Antoni Gaudí and Lluís Domènech i Montaner that have been designated UNESCOWorld Heritage Sites. The city is well known in recent times for the 1992 Summer Olympics. The headquarters of the Union for the Mediterranean is located in Barcelona.

As the capital of Catalonia, Barcelona houses the seat of the Catalan government, known as the Generalitat de Catalunya; of particular note are the executive branch, the parliament, and the Supreme Court of Catalonia. The city is also the capital of the Province of Barcelona and the Barcelonès comarca (shire).

History

Main article: History of Barcelona

The founding of Barcelona is the subject of two different legends. The first attributes the founding of the city to the mythological Hercules 400 years before the building of Rome. The second legend attributes the foundation of the city directly to the historical Carthaginian Hamilcar Barca, father of Hannibal, who named the city Barcino after his family, in the 3rd century BC.[19]

About 15 BC, the Romans redrew the town as a castrum (Roman military camp) centred on the "Mons Taber", a little hill near the contemporary city hall (Plaça de Sant Jaume). Under the Romans, it was a colony with the surname of Faventia,[20] or, in full, Colonia Faventia Julia Augusta Pia Barcino[21] or Colonia Julia Augusta Faventia Paterna BarcinoMela[22] mentions it among the small towns of the district, probably as it was eclipsed by its neighbour Tarraco (modernTarragona); but it may be gathered from later writers that it gradually grew in wealth and consequence, favoured as it was with a beautiful situation and an excellent harbour.[23] It enjoyed immunity from imperial burdens.[24] The city minted its own coins; some from the era of Galba survive.

Some important Roman ruins are exposed under the Plaça del Rei, entrance by the city museum (Museu d'Història de la Ciutat), and the typically Roman grid-planning is still visible today in the layout of the historical centre, the Barri Gòtic ("Gothic Quarter"). Some remaining fragments of the Roman walls have been incorporated into the cathedral.[25] The cathedral, also known as basilica La Seu, is said to have been founded in 343. The city was conquered by the Visigoths in the early 5th century becoming for a few years the capital of the whole Hispania. Afterwards by the Arabs in the early 8th century, reconquered in 801 byCharlemagne's son Louis who made Barcelona the seat of Carolingian "Spanish Marches" (Marca Hispanica), a buffer zone ruled by the Count of Barcelona.

The Counts of Barcelona became increasingly independent and expanded their territory to include all of Catalonia. In 1137, Aragon and the County of Barcelonamerged by dynastic union[26][27] by the marriage of Ramon Berenguer IV and Petronilla of Aragon and their titles were finally borne by only one person when their son Alfonso II of Aragon ascended to the throne in 1162. His territories were later to be known as the Crown of Aragon which conquered many overseas possessions, ruling the western Mediterranean Sea with outlying territories in Naples and Sicily and as far as Athens in the 13th century. The forging of a dynastic link between the Crowns of Aragon and Castile marked the beginning of Barcelona's decline.

The marriage of Ferdinand II of Aragon and Isabella I of Castile in 1469 united the two royal lines. The centre of political power became Madrid and the colonisation of the Americas reduced the financial importance (at least in relative terms) of Mediterranean trade. Barcelona was always the stronghold of Catalan separatism and was the center of the Catalan Revolt (1640–52) against Philip IV of Spain. The great plague of 1650–1654 had halved the city's population.[28] The Napoleonic wars left the province ravaged, but the postwar period saw the start of industrialization.

The resistance of Barcelona to Franco's coup d'état was to have lasting effects after the defeat of the Republican government. The autonomous institutions of Catalonia were abolished[29] and the use of the Catalan language in public life was suppressed. Barcelona remained the second largest city in Spain, at the heart of a region which was relatively industrialised and prosperous, despite the devastation of the civil war. The result was a large-scale immigration from poorer regions of Spain (particularly AndaluciaMurcia and Galicia), which in turn led to rapid urbanisation. Barcelona hosted the Olympic Games in 1992, which helped revitalize the city.[30]

 

 

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