1887, in order to commemorate the 0/00th anniversary of the French Revolution and celebrate the opening of the Paris World Expo, the French government decided to build a tall tower. After collecting more than 700 schemes, it was finally decided to be designed by the famous French architect Stafford Eiffel and served as the project leader, so the tower was named the Eiffel Tower, also known as the Paris Tower. 1889 In March, this towering tower finally stood on the Seine River in Paris. This world-famous tower named after the designer is not only a memorial building of the World Expo, but also considered as one of the biggest attractions in Paris. All international tourists who have been to France will definitely visit this tower. Cendra, a French poet, personally visited Eiffel in his later years and praised him for modeling this world-famous tower. However, Eiffel did not take this compliment seriously. For Eiffel himself, this tower is not a real building, but a success of pure technical performance. But this towering iron tower, for the younger generation, is the formal birth of a new architectural beauty, so it has great dual historical significance. The tower is all made of steel, covering an area of 1 10,000 square meters, with a total weight of over 9,000 tons. The original tower was 300m high, and the top of 1959 was increased to 320m. The whole tower is divided into three sections. In the first section, that is, at the bottom, four legs spread out to form a square with a side length of 100 meters on the ground. The tower legs are supported by stone piers respectively, and there is a concrete foundation underground; The second section is the extension of the tower angle, and the whole tower body gradually shrinks inward from bottom to top; In the third section, the four steel columns are combined into one, and the contour curve continues to shrink slowly, forming a graceful contour line. The whole tower consists of 65438+2000 members, which are connected into a whole with 2.5 million rivets and bolts, and 7000 tons of high-quality steel are used. There are 17 10 steps from the bottom of the tower to the top of the tower. Platforms are set at 57 meters, 1 15 meters and 276 meters above the ground, with watchtowers for restaurants, cafes, bars, amusement parks and lounges. The fourth platform, 300 meters above the ground, is a weather station. On a sunny day, you can overlook Chatterley Church, 96 kilometers away, and then board the TV transmitting antenna in the sky. When the tower was built, a steam-powered elevator was installed, and later it was changed into an elevator. The construction period of the tower is two years and two months. The iron tower has been the tallest building in the world for 40 years after its completion, and it is an epoch-making pioneering work in the history of modern architectural engineering. It marks the great progress of structural science and architectural technology in the late19th century. This tower has attracted tourists from all over the world for 90 years, and it still attracts more than 3 million tourists every year. Its magnificent image has become a symbol of Paris.