Bridge progress

The change of the bridge reflects the development of the times, the progress of mankind...

--Inscription

Ancient

When a few ancient people wandered, they found a thick tree that fell across a large ditch. Several people feel that fun is going back and forth on the top. One of them thought of cutting off the big tree by the river and letting it straddle the river. Can it not pass? He swayed what he said, and the famous dances were famous... If the companions realized something, they would jump around happily... cheering... This is probably the birth of the bridge...

Ancient

In ancient times, wooden beam bridges, stone arch bridges, and suspension bridges were born... The most famous ones are the Zhaozhou Bridge and the Lugou Bridge. The wooden bridge is more common, and the suspension bridge is the original creation of the ancient Chinese working people. In the ancient Chinese wars of the Qixiong hegemony, people invented the "drawing bridge" in order to get the best protection of their country. Dig a large moat at the edge of the country and place a suspension bridge. Usually used for people's traffic, when the war is broken, the bridge is set up to defend, the enemy can't attack, we can counterattack... The birth of the suspension bridge reflects the wisdom and wisdom of the ancient Chinese people and plays an important role in the national defense cause.

Modern

The most representative bridge in modern Chinese history is the Wuhan Yangtze River Bridge! It is the first railway and highway bridge built by China on the Yangtze River. The entire bridge is exceptionally majestic, with the upper level being the road and the lower level being the railway. The two trains can be opened at the same time. The bridge has a total of 8 piers, each with a span of 128 meters, allowing the 10,000-ton wheel to pass unimpeded. There is an elevator on the ground floor that can directly reach the bridge deck, standing on the bridge and looking around, Dajiangdong, Wuhan three towns have a panoramic view, feeling very heroic. The bridge connects the three towns of Wuhan into one, forming a three-dimensional traffic pattern of “one bridge flying north and south, Tianzhu changing the way” and becoming a magnificent landscape of Wuhan Jiangcheng. After the completion of the Wuhan Yangtze River Bridge, it became the main artery connecting China's north and south, and promoted the economic development of the South and the North.

modern

The Hangzhou Bay Bridge will be the longest sea-crossing bridge in the world, with Ningbo from the south, Jiaxing in the north, 36 kilometers from the bridge, and a two-way six-lane expressway with a design speed of 100 kilometers per hour. The service life is over 100 years and the total investment is about 10.7 billion. yuan. The construction of the Hangzhou Bay Bridge shows that after more than 20 years of reform and opening up, China's comprehensive national strength has reached a new height, and the development of China's socialist market economy and the process of building a well-off society in an all-round way have promoted a new round of modernization. The craze. "Jian Jianming, deputy commander of the Hangzhou Bay Cross-sea Bridge Project Command, said.

summary

Ancient times are the basis of the times. Ancient times are the progress of the times. Modern times are the sharp changes of the times. Modernity is the leap of the times. The future is the glory of the times...

For thousands of years, the bridge has helped people to reach the other shore from this shore, from occlusion to prosperity, from one success to another. The bridge's changes have witnessed the Chinese people's social ups and downs. It can be said that the history of the bridge is the development of the Chinese. Innovative and enterprising spirit. It is a testimony to social changes and changes in the times...

Therefore, the bridge is a business card of the times.