Significance of bridge appearance

Question 1: The title of the article Bridge is Bridge. What's the meaning? You are fighting to the death, old branch secretary. You are the life bridge for the villagers to cross death. ""Old township party secretary, you have built a bridge that will never collapse with your own flesh and blood ",giving the hope of life to others and leaving the danger of death to yourself.

Question 2: What is the symbolic meaning of the bridge? For example, the bridge symbolizes friendship, what, bridge, symbolic connection, the connection between people, and the connection between countries, for example, as the saying goes: the bridge of friendship.

It connects a country's national treasures, such as the Panda Tuan Tuan and Yuan Yuan, which the mainland gave to Taiwan Province Province, and builds a bridge between the mainland and compatriots in Taiwan Province Province.

1. Bridges play a communication role in life; 2. The bridge of the mind needs understanding and tolerance.

Question 3: What is the meaning of the bridge? When land and land are separated by water,

When roads and roads are cut off by water,

Intelligent human beings stand by and watch the water;

So the bridge came into being.

Humans who have suffered from trekking,

Thanks to this bridge.

Bridge is the connection between land and land;

Bridge is the love of river and road;

Ding is where ships and vehicles nod.

This bridge is where rowers wave goodbye to pedestrians.

Question 4: What role does a bridge play in people's lives? Bridges are large structures used to cross obstacles. Specifically, it is a structure used to cross traffic routes (such as roads, railways, waterways, etc.). ) or natural obstacles (such as rivers, straits, canyons, etc.) on other facilities (such as pipelines and cables). ) or artificial obstacles (expressway and railway lines).

The purpose of the bridge is to let people, vehicles, trains or ships pass through obstacles.

Bridges can cross valleys, rivers or banks, or they can rise from the ground and cross rivers or roads below, so that the traffic below is unimpeded.

Question 5: What is the special meaning of bridge? Naihe Bridge-Dead Baqiao-Farewell

No.72 bridge-nostalgia

Cambridge-lingering

Queqiao-love

Commercial bridge is a bridge of commercial communication;

Book bridge is a way to communicate with books;

Cultural bridge is the channel of cultural exchange;

Economic bridge refers to the means of economic exchange of information;

Heart-to-heart bridge is a bridge to communicate people's hearts;

Biological bridge: Biological bridge means to connect people and creatures, let them know each other, and also understand creatures in this way!

Xiangqi Bridge: Xiangqi Bridge means to connect people to understand chess and understand chess in this way.

Language bridge: the main idea of language bridge is to connect people with the understanding of language, and to understand language in this way!

Health Bridge: The general idea of health bridge is to connect people with health and understand health in this way!

Career Bridge: The main idea of career bridge is to connect people with careers and understand careers in this way!

Medical bridge: the main purpose of medical bridge is to connect people with the understanding of medicine and understand medicine in this way!

Bridge of Agriculture: Joey's main idea is to connect people with their understanding of agriculture and understand agriculture in this way!

Axle: the purpose of the axle is to connect people and cars, so understand the car!

Question 6: What are the famous bridges in China? History? 1 Four Ancient Bridges in China

Luoyang Bridge in Quanzhou, Fujian

Luoyang Bridge in Quanzhou, Fujian

Luoyang Bridge, formerly known as Wan 'an Bridge, is located on the Luoyang River in the eastern suburb of Quanzhou, Fujian, and is the earliest existing cross-sea beam bridge in China. Cai Xiang, the magistrate of Quanzhou in Song Dynasty, presided over the bridge construction project. From the fourth year of the Northern Song Dynasty (A.D. 1053) to the fourth year of Jiayou (A.D. 1059), it took seven years before and after, and it cost14 million yuan to build this big stone bridge across the river and across the sea. This bridge is made of granite. When it was first built, the bridge was 360 feet long and 1.5 feet wide, with statues of soldiers separated on both sides. This bridge-building project is famous for its huge scale and superb technology. Since the bridge was built more than 900 years ago, it has been repaired 17 times. At present, the bridge is 73 1.29 meters long, 4.5 meters wide and 7.3 meters high, with 44 piers, 645 handrails, 104 stone lions, 1 stone pavilion and 7 stone pagodas. There are many stone carvings in the past dynasties near Qiaozhongting, including those in the Song Dynasty such as An Lan through the ages. There are Zhao Hui Temple and Town Temple in the north of the bridge; There is Caixiang Temple in the south of the bridge, and the famous Song tablet of Caixiang Wan 'an Bridge stands in the temple, which is known as the "three wonders" of calligraphy, writing and sculpture. Luoyang Bridge is the beginning of bridge raft foundation in the world, and it is a national key cultural relic protection unit.

Zhao Zhouqiao, Hebei

Zhao Zhouqiao, Hebei

Zhao Zhouqiao, also known as Anji Bridge, is located in Wuli, south of Zhao County, Hebei Province. Because of its sparse U rhyme and painful climbing joints, it is called Zhaozhou, hence the name. Zhao Zhouqiao was designed and built by Li Chun, a stonemason in Sui Dynasty, with a history of nearly 1400 years. It is the oldest and most magnificent stone arch bridge in the world. Zhao Zhouqiao only uses a single-hole stone arch bridge to cross the Sakura stone arch bridge, with a span of 37.7 meters, connecting the south and north bridges (both ends of the bridge are nearly flat), with a total length of 50.82 meters. Taking such a huge span was an unprecedented initiative at that time. What's more, there are two small stone arches on the shoulders of the large stone arch, which changed the traditional architectural style of filling the large arch ring with sand and gravel in the past and created the world's first "shoulder-opening arch" new bridge type. This is a great scientific invention. A large open-shouldered stone arch bridge as old as Zhao Zhouqiao. For a long time, it was unique in the world. In Europe, in the14th century, a similar shoulder-shaped Sylar bridge appeared on the Cote River in France, which was more than 700 years later than Zhao Zhouqiao and was destroyed as early as 1809. The outstanding contribution of Li Chun, a famous stonemason in Sui Dynasty, will shine forever in the history of bridge architecture in the world.

Beijing Lugou Bridge

Beijing Lugou Bridge

Lugou Bridge, located on Yongding River in the southwest suburb of Beijing, is a stone bridge. The bridge was built in the 29th year of Jin Dading (AD 1 189) and in the 3rd year of Ming Chang (AD 1 192). It was repaired in the Yuan and Ming Dynasties and rebuilt in the thirty-seventh year of Kangxi in the Qing Dynasty (AD 1698). The total length of the bridge is 212.2m, with 1 1 holes. The net span and lift of each hole are not equal, the side hole is small, and the middle hole is gradually enlarged. There are ten piers in the whole bridge, ranging in width from 5.3 meters to 7.25 meters. There are stone fences on both sides of the bridge deck, and the column height is1.40m.. There are 485 lions carved on each stigma, squatting or squatting, stroking small or holding big. Stone railings are embedded between the stone pillars, which are 85 cm high. At both ends of the bridge, there are huabiao, imperial tablet pavilion and tablet inscription. At both ends of the bridge, there is also a square white marble tablet pavilion, and the dragon patterns on each pavilion column are extremely finely carved. Lugou Bridge is famous for its exquisite stone carving art. Lugou Bridge has long been famous at home and abroad. Italy Kyle? Kyle of Poirot? The book "A Journey to Polo" has a detailed record of this bridge. 1937 The July 7th Incident happened here, which was the beginning of Japanese imperialist aggression against China, so Lugou Bridge became a historical memorial building.

Guangdong Chaozhou Guangji Bridge

Guangdong Chaozhou Guangji Bridge

Guangji Bridge, also known as Xiangzi Bridge, is located in the east of Chaozhou Town, Chaoan County, Guangdong Province, across the Han River. It was built in the sixth year of Southern Song Dynasty (1 170). In the second year of Baoqing (1226), Zeng Wang of Chaozhou County presided over the construction of the West Pier. In the first year of Shaoxing (1 194), the military attache Shen presided over Dongdun, which was completed in the second year (1206). The whole bridge took 57 years to build, with a total length of 5 15 meters. It is divided into east and west sections, with a total of 18 pier, and the middle section is about 100 m wide. Due to the rapid current, the bridge can't be bridged, so we have to take a ferry. It was called Jeju Bridge at that time. In the tenth year of Xuande in Ming Dynasty (1435), it was rebuilt and five piers were added, which was called Guangji Bridge. During the period of Zheng De, another wharf was built, with a total of 24 docks. The pier is made of granite blocks, and the middle section is connected with 18 shuttle boat, forming a floating bridge which can be opened and closed. When large ships and rafts pass, you can untie the boats in the pontoon and let the ships and rafts pass. Then put the floating boat back in its place. It is the earliest stone bridge with movable switch in China and the world. There is a promising building on Guangji Bridge, which is in the history of Chinese bridges ...

Question 7: What is the significance of the highly anticipated Hangzhou Bay Bridge? Hangzhou Bay Bridge is a convenient passage across Hangzhou Bay in Tongjiang-Sanya coastal corridor, and it is a national trunk line with five verticals and seven horizontals planned by China's Ministry of Communications. After the completion of the bridge, it will become an important part of the third line, a strategic coastal economic artery in the world. Hangzhou Bay Bridge conveniently connects Shanghai and Ningbo, greatly shortening the time distance between Shanghai and Ningbo and southeast Zhejiang, forming a golden triangle region with two-hour traffic between Shanghai, Hangzhou and Ningbo, which creates conditions for establishing a modern logistics system. The implementation of this project will promote the formation of the traffic network in the Yangtze River Delta and the main skeleton of the highway network in Zhejiang Province, strengthen the connection between the coastal deep-water ports in Zhejiang Province and Shanghai, speed up the construction of Shanghai International Shipping Center, promote the establishment of a world-class mega-international metropolitan area centered on Shanghai, and give full play to Shanghai's economic radiation and agglomeration functions. Alleviate the bottleneck of highway traffic in Hangzhou, Zhejiang, and promote the economic and social development of Ningbo, the economic center of the south wing of the Yangtze River Delta. The south bank of the bridge is located in Cixi, which is of great and far-reaching significance to our city. Our city will become one of the important transportation hubs of Shanghai, Hangzhou and Ningbo from the end of transportation, and further integrate into the Yangtze River Delta economic circle with Shanghai as the leader, and its development space and location advantages will be greatly expanded and improved. The construction of the bridge will play an inestimable role in accelerating the economic development of Cixi. 1. Project Overview: Hangzhou Bay Bridge is a convenient passage for the national trunk line-the third line crossing Hangzhou Bay. The bridge starts from Zhengjiadai, Haiyan, Jiaxing City in the north, spans the wide Hangzhou Bay and ends at Shuilu Bay, Cixi City, Ningbo City, with a total length of 36 kilometers. After the completion of the bridge, the land distance between Ningbo and Shanghai will be shortened by more than120km. Hangzhou Bay Bridge is designed as a two-way six-lane expressway with a design speed of 100Km/h/h, a design service life of 100 years, and a total investment of about11800 million yuan. The bridge has two navigation channels, namely, the North Channel Bridge is a rhombic steel box girder cable-stayed bridge with twin towers and double cable planes with a main span of 448m, and the navigation standard is 35,000 tons; Nanhang Road Bridge is a type A steel box girder cable-stayed bridge with single tower and double cable planes, with a main span of 3 18m and a navigation standard of 3,000 tons. Except for the South and North Waterway Bridges, the other approach bridges all adopt prestressed concrete continuous box girder structures ranging from 30 to 80 meters. Hangzhou Bay Sea-crossing Bridge is the longest sea-crossing bridge built or under construction in the world. The main project of the bridge was successfully constructed in 2003, completed in 2008 and opened to traffic in 2009. The project company was established in September, 20001year. The investment in bridge construction is11800 million, and the capital is 3.85 billion yuan. Among them, Ningbo holds 90% and Jiaxing holds 10%. Private enterprise investment accounts for 50.25% of the company's capital. This project has invited four banks including China Development Bank, Industrial and Commercial Bank of China, China Bank and Shanghai Pudong Development Bank to lend 7 billion yuan, and loan agreements have been signed. The economic benefit of the bridge itself is an important basis for attracting investors. According to the traffic flow survey, the traffic flow of the bridge reached 52,000 vehicles in 2009, 80,000 vehicles in 20 15 and 96,000 vehicles in 2027. According to the calculation, the financial internal rate of return of the bridge will reach 8.03 ~ 10. 1%, and the payback period is 14.2 years. The return on investment is 65,438+05.65,438+00% (excluding the construction period) and 65,438+02.58% (including the construction period). 2. Engineering features: (65,438+0) The longest bridge and the largest project amount is the 36km length of the bridge, which is the biggest highlight of this project, making it surpass world famous bridge such as Chesapeake Bay Bridge and Bahrain Embankment Bridge in the United States. According to preliminary verification, the bridge * * * needs 769,000 tons of steel, cement 1.29 1.000 tons, petroleum asphalt 1.65438 tons, wood 1.9 1.000 cubic meters and concrete. The 50-meter * 16-meter box girder in Nantan adopts the technology of whole-hole prefabrication and large-scale flat car transportation, which sets a new record for transporting heavy beams at home and abroad. The 70m * 16m box girder of the approach bridge in the underwater area adopts the integrated scheme of full-hole system, transportation and erection, and the single girder weighs 2 180 tons, ranking first in China. The diameter of steel pipe piles driven into the approach bridge in the underwater area is 1.5- 1.6m, and the pile length is about 80m, totaling more than 4,000 steel pipe piles, which is the highest in the history of bridge construction in China. (2) The complexity of construction conditions is a major difficulty in this project. Hangzhou Bay is one of the three strong tidal bays in the world. As far as natural conditions are concerned, > >

Question 8: What are the types of bridges? Beam bridge, pontoon bridge, cable bridge and arch bridge are four basic types. Beam bridge, also known as flat bridge and span bridge, is a bridge supported by piers at a horizontal distance, and then beams are erected to tile the deck. This is the most widely used bridge, which appeared earlier than other bridges in history. It takes the form of wood, stone or a mixture of wood and stone. In the pre-Qin period, all beam bridges used wooden columns as piers, but this kind of wooden column beam structure showed its weakness very early and could not adapt to the development of the situation. Therefore, it was replaced by the Shizhu wooden beam bridge, such as the multi-span long bridge built in Qin and Han Dynasties: Wei Qiao, Baqiao, etc. About the Han Dynasty, the pile foundation technology was invented, and stone piers appeared, which showed that bridges made of wood and stones could cross wider rivers and bear the impact of rough waves. However, because the wooden beam on the stone pier is not resistant to wind and rain erosion, a bridge house was built on the bridge to protect the bridge body. This type of bridge (covered bridge) is more common in the south, but it was first seen in the Yellow River basin. Small and medium-sized Liang Shi or stone slab bridge is the most popular bridge type for its convenient structure, durable materials and labor-saving maintenance. Especially after the Southern Song Dynasty, it was very popular in Quanzhou, Fujian, and many Liang Shi bridges were created. If there is no pier in the middle of a beam bridge, it is called a single-span beam bridge; If there are piers in the water, so that the bridge body forms two holes, it is called a double-span beam bridge; If there are more than two piers, it is called a multi-span beam bridge. The pontoon bridge is also called pontoon bridge, pontoon boat and pontoon truss. Because it is easy to erect, it is often used in military affairs, so it is also called "Zhanqiao"-a bridge where hundreds of wooden boats (including rafts or bamboo rafts on the water) are placed side by side on the water with chains, and the boats are paved with boards for people to pass. If the bridge in the strict sense is marked by crossing the air and having column piers, it is not a bridge in the full sense. The pontoon bridge is mainly built where the river is too wide, too deep or fluctuating, which is beyond the reach of ordinary wooden columns and bridges. Pile or iron cow, iron mountain, stone lion, etc. It is arranged on both sides of the pontoon bridge to tie the cable. Tianjin Bridge, built on the Luoshui River in the first year of the Sui Dynasty, was the first pontoon bridge to connect ships with chains. At present, pontoon bridges are still widely used in southern China, such as Jiangxi, Zhejiang and Guangxi. Advantages of the pontoon bridge: First, the construction is fast. In the second year of Xianfeng in the Qing Dynasty (AD 1852), the Taiping Army besieged Wuchang and built two pontoons across the Yangtze River overnight. Second, the cost is low. In the Ming Dynasty, Zou Shouyi made a comparison between the stone bridge and the pontoon bridge in Xiufenglin: "If you use the Liang Shi Bridge, it costs 1,000 yuan, and if you use the pontoon bridge, it costs 500 gold, depending on your needs." Third, it can be opened and closed at will, and it is very convenient to disassemble and assemble. Disadvantages are small deadweight, fluctuating with the waves, weak flood resistance, complicated management, frequent maintenance and replacement of ships, bridge decks and mooring cables, and high maintenance costs. Therefore, the ultimate destination of many pontoons is to develop into wooden bridges, Liang Shi bridges or stone arch bridges. Cable bridge is also called suspension bridge, cable bridge and suspension bridge. , is a bridge suspended with bamboo cables or rattan cables and iron cables as the backbone. Most of them are built on steep river banks and dangerous valleys, and the current is too fast to be used as docks, mainly in the southwest of China. Its practice is to build houses on both sides of the river, set up posts for tying ropes and rotating posts for twisting ropes respectively, then tie several thick ropes flat, and then put boards horizontally on the ropes, and some even add one or two ropes on both sides as handrails. It was first seen in the Qin and Han Dynasties, such as a bamboo cable bridge built by Qin in the southwest of Yizhou (now Chengdu) in Sichuan, also known as Yili Bridge. The existing famous ones are Luding Iron Cable Bridge and guanxian Bamboo Cable Bridge built in Ming and Qing Dynasties. Crossing the cable bridge feels very thrilling, just as the ancients described the cable bridge: "People are hanging in the air, and if they don't quit in an instant, they will fall into a bottomless valley." Monk Zhimeng in the Tang Dynasty said, "If you can't see the end, the shadows are fighting." In fact, it is still safe to really cross the past, just like Xu Xiake's Travels commented on the Panjiang Bridge in Guizhou: "Look at it and you will stop." Arch bridge appeared late in the history of Chinese bridges, but once the arch bridge structure was adopted, it developed rapidly and became the most vital bridge type in ancient bridges. Even today, it still has broad prospects for further development. Arch bridges are divided into stone arch bridges, brick arch bridges and wooden arch bridges, among which brick arch bridges are rare and only occasionally used in temples or gardens. Stone arch bridges are commonly used and can be divided into single arch, double arch and multi-arch. The number of arches depends on the width of the river. Generally, the arch in the middle is particularly high, and the arches on both sides are slightly smaller. According to the shape of the arch, there are pentagons, semicircles, pointed arches and flat arches. The bridge deck is generally paved with stone slabs, and the side of the bridge is paved with stone railings. The image of the arch bridge was first seen in the portrait bricks in the Eastern Han Dynasty. It was produced by the shape of the wooden and Liang Shi bridge with outriggers, and was influenced by the shape of the tomb arch and water pipes. Documentary records can be found in water mirrors in the Southern and Northern Dynasties >>