Eiffel Tower
Named after its designer, engineer Gustave Eiffel, the Eiffel Tower is the tallest building in Paris[1] More than 200,000,000 have visited the tower since its construction in 1889,[2] including 6,719,200 in 2006,[3] making it the most visited paid monument in the world[4][5] Including the 24 m (79 ft) antenna, the structure is 325 m (1,063 ft) high (since 2000), which is equivalent to about 81 levels in a conventional building
When the tower was completed in 1889 it was the world's tallest tower — a title it retained until 1930 when New York City's Chrysler Building (319 m — 1,047 ft tall) was completed[6] The tower is now the fifth-tallest structure in France and the tallest structure in Paris, with the second-tallest being the Tour Montparnasse (210 m — 689 ft), although that will soon be surpassed by Tour AXA (22511 m — 73836 ft)
The metal structure of the Eiffel Tower weighs 7,300 tonnes while the entire structure including non-metal components is approximately 10,000 tonnes Depending on the ambient temperature, the top of the tower may shift away from the sun by up to 18 cm (7 in) because of thermal expansion of the metal on the side facing the sun The tower also sways 6–7 cm (2–3 in) in the wind[3] As demonstration of the economy of design, if the 7300 tonnes of the metal structure were melted down it would fill the 125 meter square base to a depth of only 6 cm (236 in), assuming a density of the metal to be 78 tonnes per cubic meter The tower has a mass less than the mass of the air contained in a cylinder of the same dimensions,[7] that is 324 meters high and 883 meters in radius The weight of the tower is 10,100 tonnes compared to 10,265 tonnes of air
The first and second levels are accessible by stairways and lifts A ticket booth at the south tower base sells tickets to access the stairs which begin at that location At the first platform the stairs continue up from the east tower and the third level summit is only accessible by lift From the first or second platform the stairs are open for anyone to ascend or descend regardless of whether they have purchased a lift ticket or stair ticket The actual count of stairs includes 9 steps to the ticket booth at the base, 328 steps to the first level, 340 steps to the second level and 18 steps to the lift platform on the second level When exiting the lift at the third level there are 15 more steps to ascend to the upper observation platform The step count is printed periodically on the side of the stairs to give an indication of progress of ascent The majority of the ascent allows for an unhindered view of the area directly beneath and around the tower although some short stretches of the stairway are enclosed
Maintenance of the tower includes applying 50 to 60 tonnes of paint every seven years to protect it from rust In order to maintain a uniform appearance to an observer on the ground, three separate colors of paint are used on the tower, with the darkest on the bottom and the lightest at the top On occasion the colour of the paint is changed; the tower is currently painted a shade of brownish-grey[8] On the first floor there are interactive consoles hosting a poll for the colour to use for a future session of painting The co-architects of the Eiffel Tower are Emile Nouguier, Maurice Koechlin and Stephen Sauvestre[9]
The Eiffel Tower is a puddle iron lattice tower located on the Champ de Mars in ParisBuilt in 1889,it has become both a global icon of France and one of the most recognizable structures in the worldThe tower is the tallest building in Paris and the most-visited paid monument in the world; millions of people ascend it every yearNamed after its designer,engineer Gustave Eiffel,the tower was built as the entrance arch to the 1889 World's Fair
The tower stands 324 metres tall,about the same height as an 81-storey buildingDuring its construction,the Eiffel Tower surpassed the Washington Monument to assume the title of the tallest man-made structure in the world,a title it held for 41 years,until the Chrysler Building in New York City was built in 1930However,due to the addition,in 1957,of the antenna atop the Eiffel Tower,it is now taller than the Chrysler BuildingNot including broadcast antennas,it is the second-tallest structure in France,after the Millau Viaduct
The Eiffel Tower stands on the south side of the Seine River in the Champ de Mars in Paris, France It was built in 1889 and was the tallest building in the world at the time The Eiffel Tower was named after the famous architect and structural engineer Gustav Eiffel, who was built by Schneider Iron
埃菲尔铁塔矗立在塞纳河南岸法国巴黎的战神广场,于1889年建成,是当时世界上最高的建筑物。埃菲尔铁塔得名于设计它的著名建筑师、结构工程师古斯塔夫·埃菲尔,全部由施耐德铁器建造。
扩展资料:
埃菲尔铁塔的结构介绍:
埃菲尔铁塔的结构体系既直观又简洁:底部是分布在每边128m长底座上的4个巨型倾斜柱墩,倾角54°,由5763m高度处的第一层平台联系支承;第一层平台和11573m高度。
处的第二层平台之间是4个微曲的立柱 ;再向上4个立柱转化为几乎垂直的、刚度很大的方尖塔,其间在27613m高度处设有第三层平台;在30065m高度处是塔顶平台,布置有电视天线。铁塔总重10000t,承担这些重量的是4个坚固的直伸至下卧持力土层的沉箱基础。
-埃菲尔铁塔
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