Please write the names of the two world famous bridges?

Xihuomen Bridge (Xihuomen Bridge is a super-large sea-crossing bridge with the highest technical requirements among the five sea-crossing bridges of the Zhoushan Island Project connecting Zhoushan Island and Ningbo, the main bridge is a two-span continuous steel box girder suspension bridge, the main span is 1650 meters, it is currently the world's largest span steel box girder suspension bridge, and the total length ranks first in the suspension bridge in the world.

Second, the first in China, but the length of the steel box girder suspension is the first in the world. The design navigation grade is 30,000 tons and the service life is 100 years. ）

Humber Bridge (long-span suspension bridge. Across the Humber River in England. It is located between Hessl on the north shore and Barton on the south bank.

Built in 1973 and 1980, it was opened to traffic in July 1981. The total length of the bridge is 2,220 meters, with a main span of 1,410 meters, a north bank span of 280 meters, and a south bank span of 530 meters. The approach bridge is a reinforced concrete viaduct. ）

Top 10 bridges in the world.

Serial No. Bridge Name Main Span (m) Number of Lanes Country Construction Year Beam Type.

1 Akashi Kaikyo Bridge 1990 Kamiko 6 Shimotsu 2 Japan 1998 Truss.

2 greatest belt 1624 6 Denmark under construction Box girder.

3 Humber Bridge 1410 4 UK 1981 Box girder.

4 Jiangyin Yangtze River Highway Bridge 1385 6 China 1999 Box girder.

5 Tsing Ma Bridge 1377 Shanggong 6 Subway 2Gong4 Hong Kong, China 1997 Truss.

6 Ferrezano Bridge Verrazano 1298 Up, 6 Down, 6 USA 1964 Trusses.

7 Golden Gate Bridge 1280 6 United States 1937 Truss.

8 Mackine Strait 1158 4 United States 1957 Truss.

9 Minami Bizan Seto Ohashi 1100 Kamiko 6 Shimotsu 4 Japan 1988 Trusses.

10 Bosporus II Bridge (2) 1090 8 Turkey 1988 Box girder.

Suspension bridge – Akashi Kaikyo Bridge, Japan.

Nishihormon Bridge.

Big belt bridge is greatest

The Belt Runyang Bridge, spanning the Yangtze River, connects Zhenjiang (formerly known as Runzhou) and Yangzhou in Jiangsu Province.

1. Lugou Bridge. Also known as Lugou Bridge. The structure of the bridge is solid, the shape is beautiful, and it has a very high level of bridge engineering technology and art, which fully reflects the wisdom and wisdom of the ancient Han working people and the brilliant achievements of bridge construction.

2. Anping Bridge. Located in Anhai Town, Jinjiang, Fujian, also known as "Wuli Bridge", with a total length of 2255 meters and 361 piers, it is the longest existing stone bridge in ancient China.

3. Wuting Bridge. Located in the Slender West Lake Scenic Area of Yangzhou City, Jiangsu Province, it is a landmark building in Yangzhou. Wuting Bridge was built in the 22nd year of Qianlong (1757), imitating the Wulong Pavilion and the Seventeen-hole Bridge in Beihai, Beijing, also called the Lotus Bridge.

4. Luding Bridge. Also known as the chain bridge, it is a masterpiece of ancient Chinese bridge construction. It is located on the Dadu River in the western part of Sichuan Province, China, and is a national key cultural relics protection unit.

5. Guangji Bridge. Located in Huancheng East Road, Xiangqiao District, Chaozhou City, Guangdong Province, across the Hanjiang River, connecting the east and west banks, it is the main traffic point from ancient Guangdong to Fujian and Zhejiang, and is also one of the eight scenic spots of Chaozhou. It is the third batch of national key cultural relics protection units.

6. Yudai Bridge. It is one of the most beloved of the six bridges on the west embankment. The Yudai Bridge is the only high-arch stone bridge on the west embankment, and it is the passage for Qianlong to take a boat from Kunming Lake to Yuquan Mountain.

7. The cross bridge is the Shanxi Jin Ancestral Hall, built in the Song Dynasty, in the shape of a cross bridge, such as the big peng spreading its wings, located in front of the Temple of the Virgin, the shape is elegant and generous, the shape is unique, it is the only example of the existing ancient bridge in China.

1. West Lake Broken Bridge.

One said that there is a pavilion built on the ancient stone bridge, the snow is in winter, the ice and snow on the sunny side of the bridge melts, the shady side of the bridge is still paved with jade and silver, overlooking from Geling, the feeling of the bridge and the embankment is broken, and it is named "the residual snow of the broken bridge". There is also a legend that the White Lady and Xu Xian met on the broken bridge, which really added a romantic color to the scenery of the broken bridge.

2. Nai He Bridge.

There are two popular theories about the Nai Ho Bridge. One says that there is a river named Nai River in the prefecture, and the other says that because of the meaning of "helpless" in Chinese, it just corresponds to the regret and helplessness of people who wish to be born when they are reincarnated.

In Chinese Taoism and Chinese folk mythology, the bridge is a place to give people reincarnation, where an elderly female deity named Meng Po is given a bowl of Meng Po soup to forget the memories of the past life and be reincarnated in the next life.

3. Zhaozhou Bridge.

Built in the Sui Dynasty by the famous craftsman Li Chun, the Zhaozhou Bridge has a history of about 1,400 years, and is the earliest and best-preserved ancient open-shouldered stone arch bridge. The most well-preserved ancient single-hole open-shoulder stone arch bridge.

According to legend, Lu Ban traveled around the world through Zhaozhou and encountered the Huhe River blocking the way, so under the touch and help of God, the Zhaozhou Bridge was caused overnight, Penglai Xiandao Immortal Zhang Guolao and Chai Wang Ye heard the news and came to ** Actually, the two used spells to try to collapse the bridge, but Lu Ban still topped the Zhaozhou Bridge with his bare hands.

4. Queqiao. The Magpie Bridge is a bridge built by a magpie sent by the legendary bird god to be moved by the sincere emotions of the Cowherd and the Weaver Girl. Legend has it that the Cowherd and the Weaver Girl are separated by the Milky Way and are only allowed to meet on the seventh day of the seventh lunar month every year.

In order to let the Cowherd and the Weaver Girl meet, magpies from all over the world will fly over and build a bridge with their bodies close to each other, and this bridge is called Magpie Bridge. The Cowherd and the Weaver Girl met on this magpie bridge.

5. Mahjong Bridge.

Mahjong Bridge is the bridge built on the Huazhijing River in the Qing Daoguang period, there is an old man surnamed Zhou in the locality, he hates the folk gambling very much, invites more than 10 people of insight to gather all the people of insight, surrounds the casino, catches the gamblers, confiscates the financial notes, and destroys the financial tools. The bridge was built with the money confiscated from the gambling. It is now ruined.

1. Akashi Strait Bridge.

The bridge is located between Kobe City and Awaji Island in Japan (135 degrees 01 minutes east longitude, 34 degrees 36 minutes north latitude), with a total length of 3,911 meters and a main pier span of 1,991 meters. Construction of the bridge began in May 1988. It was completed in March 1998.

2. Large belt bridge.

The Big Belt Bridge, also known as the Big Bolt Bridge, connects the island of Zealand, where the capital of Denmark's largest city, Copenhagen, is located, and the island of Funen, where the third largest city, Odense, is located. The bridge was completed and opened to traffic on June 14, 1998. The bridge project consists of 3 parts

A railway tunnel spanning the Eastern Passage, a highway viaduct and a road-rail bridge. The total length of the highway bridge is a suspension bridge with a main span of 1,624 meters and two spans of 535 meters. The bridge deck is 4 lanes, the tower height is 254m, and the bridge deck is 75m above sea level.

3. Humber Bridge.

The world-famous long-span (main span 1410 meters) suspension bridge. The bridge spans the Humber River in England and is located between Hessl on the north bank and Barton on the south bank. Construction began in March 1973, was completed at the end of 1980, and opened to traffic in July 1981.

The north shore side span is 280 meters long, and the south bank span is 530 meters long. The approach bridge is a reinforced concrete viaduct.

4. Jiangyin Yangtze River Highway Bridge.

Jiangyin Yangtze River Highway Bridge is China's first extra-large steel box girder suspension bridge with a span of more than 1,000 meters, and it is also the "first in China" in the 20th century.

1. The world's fourth largest steel box girder suspension bridge. The Jiangyin Yangtze River Bridge is located between Jiangyin and Jingjiang cities in Jiangsu Province, China, and is the location of the planned north-south main coastal line across the Yangtze River. The total length of the bridge is 3071 meters, and the bridge deck is designed according to the standard of a six-lane expressway with a width of meters.

5. Tsing Ma Bridge.

Hong Kong's Tsing Ma Bridge is the world's longest dual-purpose suspension bridge for railways and the eighth longest suspension bridge in the world. The main span of the bridge is 1,377 meters long, and the total length of the approach road is 2,160 meters. Construction of the Tsing Ma Bridge began in May 1992 and was opened to traffic in 1997.

The history of bridges is older than the history of mankind. When there were no human beings on the earth, due to the violent storm of nature, the big tree was blown down, and it happened to be on the opposite bank, so some animals ran along the big tree to the other bank, which was the first bridge built by nature. Later, human beings consciously cut down the big tree and carried it on the banks of deep ditches or small rivers, which was the world's first man-made bridge, which shows that the world's first bridge was made by nature, not human beings.

The stone arch bridge is the Zhaozhou Bridge.

You have to be clear.

It is impossible to verify where and by whom the world's first bridge came from. Because since there were roads, when people encountered rivers and ravines, they thought of overcoming them in some way. The original bridge may have been just a tree trunk or a stone slab on the bank of a small river ditch or on a reef in the middle of the river.

Later, on this basis, the first wooden and stone bridges appeared.

Stone arch bridge There is an arched large stone bridge in the south of Zhao County, Hebei Province, China, which is the world-famous Zhaozhou Bridge, which is also one of the oldest existing stone arch bridges in the world. This bridge was built by craftsmen Li Chun and Li Tong of the Sui Dynasty, and it is nearly 1400 years ago. It has a beautiful shape and a unique structure.

Bridges like this were only discovered in Europe in the middle of the 19th century, more than 1,200 years later than in China.

Iron Bridge In 1779, Abraham Darby of England built the world's first iron bridge in Cobrookdale, central England. The iron bridge across the Severn River is a 30-metre-long single-span semicircular arch using five rows of cast iron ribs. The casting of the bridge has a lot of ingenious ideas.

Suspension bridges The original suspension bridges were soft and bendable, which was not conducive to vehicle walking. Modern suspension cables have solved this problem by suspending ribbed bridges with steel cables. The design of the first suspension bridge with a horizontal deck in Spain was written in 1595 by Austrian Bishop Varanzoo.

The design connects the irons together to form a suspension cable. In 1801, Finley first built a suspension bridge over Jacob Creek in Pennsylvania, USA, with a length of 21 meters.

In 1803, France was the first to build a wire cable bridge. Sekun built several bridges with spans of more than 90 meters. Vic invented the idea of using steel wires to form cables on bridges. Instead of having to hoist heavy wire cables onto pylons.

Reinforced concrete bridge The world's first reinforced concrete bridge was a concrete viaduct built in 1899 in Lenfinnan, Scotland, with a span of 15 meters per arch. Each of the 21 bridge vaults has a hinge that allows the pier foundations to be moved. Engineer Melat was one of the first to understand the role of the three-hinge chain, and in 1901 he built the first three-hinged arch bridge in Switzerland, which was a slender reinforced concrete bridge.

Prestressed concrete bridges After the Second World War, high-strength steel was produced, which Fresinai used in bridge design. Between 1948 and 1950, he built five prestressed concrete bridges over the Marne River in France, at Esbury, Anne, Tribadus, Chagis and Jussi. The bridges have flat arches, which are much flatter than the arches of the past.