The mayor of Chicago rebuilt Chicago and learned from the fire. He changed the way of building houses in Chicago, from wood to reinforced concrete. In this case, the world's tallest skyscraper? Chicago Family Insurance Building? Born.
Although there are hundreds of skyscrapers now, the Chicago Family Insurance Building has only 10 floors and is 42 meters high. Construction began at 1884 and was completed in one year. Since then, many people have begun to learn from this skyscraper. 193 1 year, this skyscraper has been in service for more than 60 years and has to be demolished because of the aging of building materials. After World War I, the economic center developed to the United States, and skyscrapers developed accordingly.
1852, Otis, an American, invented the elevator and exhibited it at the new york Crystal Palace Expo in 1857. His elevator is very popular because of this exhibition. Many skyscrapers have their elevators installed in them, and skyscrapers and elevators develop together through mutual assistance.
When the United States built a reinforced concrete skyscraper, China's house was still a low adobe house, as if it were a sky and an underground. How will Li Hongzhang feel when he visits the United States? 1896, 73-year-old Li Hongzhang attended the coronation ceremony of Tsar Nicholas II and visited Europe and America nonstop. Li Hongzhang tenaciously traveled to eight countries in Europe and America. On August 28th, he came to new york, the penultimate stop in the United States, where he will visit 10 days.
Li Hongzhang saw skyscrapers here and took the elevator. The first time he took the elevator, he played a little joke. He didn't know what the elevator was at that time, but it was square, so he said to the Americans around him, Why is this house so small that there isn't even a stool? ? The American next to him burst into laughter and explained to him that this was an elevator.
On September 2nd, Li Hongzhang mentioned skyscrapers in an interview with The New York Times in waldorf where he stayed. The reporter asked him what he was most interested in America. Li Hongzhang is talking about skyscrapers. He is curious about American buildings with 20 stories or higher. He has never seen such a building in China before, even in Europe. Finally, he said something that would make us sound sad. He said: the Qing dynasty simply could not afford to build such a high house. Even if it is built, it can't cover the wind and rain, and a gust of wind blows it down. ?
190 1 year, Li Hongzhang died five years after his visit to the United States, and the Qing Dynasty perished in 1 1 year. He has no time to see the new China now. China is now called? Infrastructure maniac? In order to develop the economy, we have also built skyscrapers. Li Hongzhang said a hundred years ago that if it can't be built, it will collapse even if it is built. All the skyscrapers built by China were smashed.
We have not only built skyscrapers, but also bridges, highways, maritime shipping and so on. China is not only building in its own country, but also extending a hand of friendship to help poor areas such as Africa with infrastructure construction. If Li Hongzhang could see this scene now, he wouldn't have to envy American skyscrapers.