Traditional Culture Encyclopedia - Weather inquiry - Description composition of sea-crossing bridge
Description composition of sea-crossing bridge
Before the bridge was completed, it took more than two hours from Zhoushan to Ningbo. I remember one time, our family of three went to Ningbo to play, and the car was facing the ferry peak when it passed Baifeng Wharf. We didn't get on the ferry from 1 until 8 pm, and it was late at night when we got home. In case of typhoon or bad weather, it is even more troublesome to refuse to cross the ship and stop. Zhoushan people can't get out, and outsiders can't get in. The vast sea is like an invisible giant wall. You see, how inconvenient it is to have no bridge!
The completion of the bridge has been a dream of Zhoushan people for thousands of years and will eventually come true! I think, by that time, our hometown will definitely undergo earth-shaking changes.
The cross-sea bridge not only connects the islands, but also connects the dreams of countless people. Let us look forward to the bridge economy era and the day when our dreams come true.
2. Hangzhou Bay Bridge Composition Hangzhou Bay Bridge has nothing to do with "civilization scar"
Hangzhou Bay Bridge is the longest sea-crossing bridge in the world, which has attracted wide attention since its trial operation. But the key point has nothing to do with many world firsts, but "the sea breeze makes drivers drunk and regards traffic as sightseeing", which leads to frequent car accidents and violations, and more male drivers face the sea on the bridge to facilitate "travel"
Things. (See China News Network on May 3 for details. Public opinion is quite critical of this, and it is nothing more than accusing pedestrians of poor quality. Commentator Xiao Longping even thought that the Hangzhou Bay Bridge was "the scar of another civilization".
It is true that tourists are uncivilized, but as far as the grand design of the 36-kilometer sea-crossing bridge is concerned, it is doomed that this is a place where passers-by will have uncivilized behavior of "parking and loving Hangzhou Bay", and it is also doomed that the expressway bridge will become a sightseeing spot for tourists to wander around. "Facing the sea, spring blossoms", the sea has always been fascinating. People who have a little leisure will be eager to get close to the sea as much as possible, "let the sea breeze blow your face", not to mention the Hangzhou Bay Bridge, which brings people safely into the sea and blows the sea breeze. What a pleasant life? The charm of the sea lies largely in its unpredictable scenery. The 36-kilometer cross-sea bridge means that passers-by will be able to experience the colorful scenery of the sea for a long time at zero distance. Why not let people linger? Moreover, such seascape bridges are rare. Combined with human's strong aesthetic instinct for the sea and the scarcity of bridge resources, Hangzhou Bay Bridge, as an expressway, is destined to be a "sightseeing route" spontaneously transformed by passers-by.
People's behavior is often closely related to the environment. Since the bridge has such a powerful landscape function and meets people's need to love the sea, it is a bit "anti-human" and "uncivilized" to accuse so many "uncivilized" behaviors of parking and sightseeing. A truly "civilized" cross-sea bridge should not only consider the traffic function, but also fully predict the derivative behaviors such as sightseeing that may be caused by the cross-sea bridge, and provide a platform for these behaviors to be released, so as to achieve the best of both worlds. Otherwise, for this kind of popular behavior, only relying on traffic management measures to control it is bound to be similar to Don Quixote's behavior of fighting against the wind wheel, which will lead to more contradictions. According to reports, the sightseeing spots were considered at the beginning of the design. "The sea observation deck is located in the middle of Hangzhou Bay Bridge, covering an area of1.2000 square meters. At present, the main structure of the first floor of the observation deck has been completed, and it is expected to be completed and opened to the public in June next year. " From this point of view, the design of Hangzhou Bay Bridge is still very civilized. The "uncivilized behavior" of pedestrians turning into tourists is because the opening hours of trial operation are not synchronized with the opening hours of observation deck. I believe it has nothing to do with the scars of civilization and the quality of China people. After the observation deck opens to the outside world next year, coupled with traffic management, I believe that the vast majority will naturally disappear. People's daily behavior is not good or bad, and civilization depends on whether it conforms to the environment. In order to change people's behavior, it is necessary to provide more conditions for the occurrence or change of the target behavior. Talking about behavior with civilization is simple and naive.
On Sunday, my mother saw that we had nothing to do, so she offered to go to the bridge. I danced happily and followed my parents to the bridge.
Before I came to the sea-crossing bridge, I heard that the sea-crossing bridge is the longest bridge in the world. This title shocked me very much. What is it like? I'm still at a loss. Mother said, "Hangzhou Bay Bridge is a sea-crossing bridge across the waters of Hangzhou Bay in China. It starts from Zhengjiadai, Haiyan, Jiaxing, Zhejiang in the north and ends at Shuilu Bay, Cixi, Ningbo in the south, with a total length of 36 kilometers! " I said, "How is that possible? How long! " Mom said, "It's even more strange that you are behind!" "Driving across the sea bridge, I found a very interesting rule. On the railing of the bridge, each stage has a color. I looked at it carefully and found that it was red, orange, yellow, green, blue and purple. I was a little surprised by this phenomenon and asked my mother, "Why are there seven colors on the railing of the bridge?" "Is there any special meaning in this?" Mother said, "After painting these seven colors, the whole bridge looks like a colorful rainbow on the sea." .
The staff said that the reason why it was painted in seven colors was to prevent drivers from visual fatigue during driving and increase the safety factor. ""oh, so that's it! " I nodded my head.
The sea-crossing bridge is a world-famous building, so we can't destroy it.
4. the composition of Zhoushan sea-crossing bridge .. I don't know what level the students want. . If the teacher arranges to write that composition. That's a headache. . Zhoushan Liandao Bridge will be opened soon, and the influence and function brought by the bridge economy to Zhoushan is all-round. Even the island project has to be said to be the dream of Zhoushan people for several years. Now, I finally look forward to the moment when my dream comes true.
Standing in front of Jiaochuan toll station, Jintang Bridge draws a beautiful arc in the East China Sea like a rainbow from a distance. Is the sky on the other side of the rainbow? I have to sigh its grandeur.
Driving on the Jintang Bridge, the car is driving on the spacious two-way four-lane road. When the window is opened, the sea breeze blows on our face, making people feel that our car is really at sea.
Along the way, there are beautiful mountains and seas, simple fishermen's customs and busy shipbuilding scenes. "Bridge, sea, port, island and village" reflect each other and blend into one, showing Zhoushan's characteristic island customs. I can't help but get off the bus and lie on the guardrail and enjoy the beautiful scenery greedily.
In front of the stay cable of Jintang Bridge, a master is debugging laser lights for the bridge. He said the bridge would be more beautiful at night. The main color of Jintang Bridge is blue. At night, four blue lasers will show a huge "M" shape on the stay cables of the bridge.
Before the bridge is completed, it will take two or three hours from Zhoushan to Ningbo. Zhoushan people can't get out, and outsiders can't get in. The vast sea is like an invisible giant wall. Now, driving on the chain connecting the islands, I feel that I have witnessed history.
I want to write a composition about Dalian sea-crossing bridge. On a Sunday in March this year, my family boarded the 36-kilometer-long Hangzhou Bay Bridge with excitement.
The wind on the bridge is quite strong, and the smell of the sea is pervasive. I walked onto the bridge, singing and dancing with joy.
Looking up at the tall and straight bridge railings, my heart is full of infinite respect for the bridge builders. The most striking thing is that the steel guardrail on the deck of Hangzhou Bay Bridge has seven different colors.
Every 5 kilometers, the bridge will change a different color. In this way, the driver will know that after driving 5 kilometers, the vision has been adjusted.
Dad said, "so that our driver can know where the bridge has passed without looking at the odometer." Really convenient! " I looked down at the sea. At the foot of Hangzhou Bay, the waves were rough, and the white waves came in at a very fast speed, making a rushing sound, as if celebrating the birth of the bridge ... When I was intoxicated with this spectacular scene, my mother patted me on the shoulder and said, "This is a beautiful and spectacular bridge in the world. It conquered this famous big bay at home and abroad and brought great convenience to people on both sides of the strait." It turns out that drivers have to go through Hangzhou to get to Jiaxing, so the distance is about 120 km longer; Starting from the bridge, you can save more than an hour's drive.
I can't help but sigh: what a feat! "A bridge flies north and south, and Tianzhu becomes a thoroughfare." Hangzhou Bay Bridge has created a miracle in the history of bridge construction in the world! Our traffic extends in all directions, and the sky enters the sea, showing its magical powers.
I believe that our motherland will develop better day by day.
I want to write a composition about Dalian sea-crossing bridge. On a Sunday in March this year, our family boarded the 36-kilometer-long Hangzhou Bay Bridge with excitement. The wind on the bridge is quite strong, and the smell of the sea is pervasive. I walked onto the bridge, singing and dancing with joy. Looking up at the tall and straight bridge railings, my heart is full of infinite respect for the bridge builders.
The most striking thing is that the steel guardrail on the deck of Hangzhou Bay Bridge has seven different colors. Every 5 kilometers, the bridge will change a different color. In this way, the driver will know that after driving 5 kilometers, the vision has been adjusted. Dad said, "so that our driver can know where the bridge has passed without looking at the odometer." Really convenient! " I looked down at the sea. At the foot of Hangzhou Bay, the waves were rough, and the white waves came in at a very fast speed, making a rushing sound, as if celebrating the birth of the bridge ... When I was intoxicated with this spectacular scene, my mother patted me on the shoulder and said, "This is a beautiful and spectacular bridge in the world. It conquered this famous big bay at home and abroad and brought great convenience to people on both sides of the strait." It turns out that drivers have to go through Hangzhou to get to Jiaxing, so the distance is about 120 km longer; Starting from the bridge, you can save more than an hour's drive. I can't help but sigh: what a feat!
"A bridge flies north and south, and Tianzhu becomes a thoroughfare." Hangzhou Bay Bridge has created a miracle in the history of bridge construction in the world!
Our traffic extends in all directions, and the sky enters the sea, showing its magical powers. I believe that our motherland will develop better day by day.
7. Introduction of Hangzhou Bay Cross-sea Bridge 400 words Hangzhou Bay Cross-sea Bridge is a cross-sea bridge across the waters of Hangzhou Bay in China. It starts from Zhengjiadai, Haiyan, Jiaxing, Zhejiang, and ends at Shuilu Bay, Cixi, Ningbo, with a total length of 36 kilometers, which is1/km longer than the King Fahd Bridge connecting Bahrain and Saudi Arabia. World record association became the world record candidate for the longest sea-crossing bridge, and China became the Pontchartrain Lake Bridge and Qingdao after the United States.
The concept of Wuyue culture was first adopted in Zhejiang, Shanghai, Jiangsu and other places. On the bridge type, the designer adopted the form of West Lake Su Causeway, which integrates transportation and sightseeing.
In order to consider the hydrological environment characteristics of Hangzhou Bay, the design of "Long Bridge Sleeping Wave" outlines the plane of the bridge as an S-shaped curve. The beautiful and lively bridge shape makes drivers and passengers feel happy when driving and riding. Hangzhou Bay, bridge sewer, is one of the three strong tidal bays in the world. There are typhoons and tornadoes formed by microclimate, with chaotic speed and direction.
The design of "Long Bridge Sleeping Wave" is also based on the safety of the bridge. We reserved a passage for the strange tide in Qiantang and the passing ships. The entire 36-kilometer-long bridge has two underground passages with widths of 448 meters and 3 18 meters respectively.
The clearance under the bridge is high and the flow speed is fast. The northern channel is reserved for ships of 35,000 tons, and the southern channel is reserved for ships of less than 3,000 tons. At the upper ends of these two waterways, there will be two carved bridge towers, namely the rhombic twin towers and the A-shaped single tower, which will become two ups and downs in the "long bridge lying in waves" bridge type, and the Qiantang hole will naturally pass through.
An offshore platform similar to the East China Sea oil platform was built on the muddy beach 0/4 km away from Nan 'an/Kloc-. During construction, it will serve as the intersection of north and south, which is convenient for logistics.
After the construction, the platform will become a transfer station in the bridge integrating rescue, sightseeing and leisure. This platform is as big as two football fields, and a watchtower is planned on the platform. When the weather is fine, you can see the dock of Shuiluwan Village in Andong, Cixi in the south and Haiyan Zhengjiadai in the north.
So this platform is not affected by trends. The characteristics of bridge construction in giant construction site, Cixi is a big city after 800 years of reclamation. From a pond to the present 10 pond, the land of the pond is flat.
A flat beach will pave the way for tens of thousands or even hundreds of thousands of builders, so the Hangzhou Bay Bridge will be prefabricated, industrialized and large-scale. Finally, offshore construction is realized by building blocks.
The atmosphere of the whole conference was warm. More than 200 journalists from home and abroad agreed that the world's longest sea-crossing bridge, which will be laid on the 8th, will become an example of dialogue and challenge between human beings and nature with its complex workload, landscape, scientific and technological content and construction environment, leaving a glorious page in the history of bridge construction at home and abroad.
8. The project description of Hangzhou Bay Bridge is huge-Hangzhou Bay Bridge spans the vast sea area of Hangzhou Bay, with a total length of 36 kilometers, which is the longest sea-crossing bridge under construction in the world.
Construction determines design-due to the specific natural conditions such as wind, waves, tides and currents in Hangzhou Bay, the construction scheme of the bridge determines the design scheme. High-tech-adopt world-advanced anti-corrosion technology for seawater corrosion; In view of the harsh construction environment, high-tech new technologies and methods such as integral erection and installation of large prefabricated components are adopted.
The construction management system is complex-in order to ensure the safety of offshore construction and the traffic and structural safety during operation, the bridge will establish advanced integrated management systems such as structural health and safety monitoring and early warning and emergency rescue systems, and will be built into a real digital bridge. Hangzhou Bay Bridge is a convenient passage for shenyang-haikou expressway, the national trunk line, to cross Hangzhou Bay.
The bridge starts from Zhengjiadai, Haiyan, Jiaxing in the north, crosses the wide Hangzhou Bay and ends at Shuilu Bay, Cixi, Ningbo, with a total length of 36 kilometers. It is the longest sea-crossing bridge built and under construction in the world at present, and the land distance between Ningbo and Shanghai will be shortened by120km after completion. The bridge has two channels, the south and the north. Among them, the north channel bridge is a rhombic steel box girder cable-stayed bridge with double towers and double cable planes with a main span of 448 meters, with a navigation standard of 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 North-South Waterway Bridge, the other approach bridges all adopt prestressed concrete continuous box girder structures ranging from 30 to 80 meters. The bridge is designed as a two-way six-lane expressway with a design speed of 100km/h, a design service life of 100 years, and an estimated total investment of about11800 million yuan.
The bridge project started construction on June 26, 2007, passed the handover acceptance in April 2008, and was completed and opened to traffic in May 2008. Hangzhou Bay Bridge is a super-large traffic infrastructure designed, managed, constructed and invested by China.
The fifth meeting of the technical expert group of Zhejiang Province and the Ministry of Communications spoke highly of the Hangzhou Bay Bridge project, pointing out that the bridge project has achieved a number of technological innovations with independent intellectual property rights, which is a landmark project of the latest technological achievements in the construction of the cross-sea bridge in China, a milestone in the construction of the Gulf Bridge in China, a super-large bridge project successfully built in China with the world advanced level, and has enhanced China's position in the field of international civil engineering. The completion and opening of the bridge is conducive to actively docking with Shanghai, expanding opening up, promoting cooperation and exchanges in the Yangtze River Delta region, improving the opening up level of Zhejiang Province, especially Ningbo and Jiaxing, and enhancing its comprehensive strength and international competitiveness; It is conducive to improving the layout of the regional highway network and national trunk lines in the Yangtze River Delta and alleviating the traffic pressure on the Shanghai-Hangzhou-Ningbo Expressway. It is conducive to changing the situation of Ningbo's transportation hub, thus becoming a transportation hub and implementing the regional development strategy around Hangzhou Bay; It is conducive to promoting the development of Jiangsu, Zhejiang and Shanghai tourism.
In the construction of bridge engineering, unprecedented difficulties have been encountered, including: first, the construction conditions are very bad, with many typhoons, large tidal range, rapid tidal current, deep scouring, wide beach, strong corrosiveness and shallow gas, and the effective working days in one year are about 180 days; Second, the domestic cross-sea bridge construction lacks ready-made technical specifications; Third, lack of experience in the construction and management of long bridges across the sea; Fourth, there is a lack of construction equipment for building long bridges across the sea; Fifth, the bridge is huge, with a total of 2.45 million cubic meters of concrete, 800,000 tons of steel and 9,063 piles of various types. There are many construction ships, many operation points and long engineering front. Sixth, it is necessary to raise more than 654.38+0 billion construction funds by itself. The construction process of Hangzhou Bay Bridge is a process of continuous innovation, which is the crystallization of all builders' innovations in concept, technology and management.
It can be said that without innovation, there would be no Hangzhou Bay Bridge. The first is concept innovation.
Starting from the concrete reality of Hangzhou Bay, bridge builders have developed the idea of bridge construction, established the idea of "design depends on construction", "industrialization, large-scale and mechanization, and changed offshore construction into onshore construction", and put forward the construction goal of "bridge design service life 100 year" for the first time in China. Actively explore innovative investment and financing mechanisms and encourage private capital to invest in super-large national infrastructure projects. At present, private capital accounts for 28.64% of the total investment of the bridge.
Second, technological innovation. The bridge construction always insists on respecting science, relying on experts, and giving full play to the "think tank" role of the technical expert group of Zhejiang Province and the Ministry of Communications.
From 1994, a special study of 148 was conducted. Up to now, 6 patented technologies and 9 ministerial-level construction methods have been approved, and 8 scientific and technological achievements have won provincial awards. Some technical specifications and procedures have been incorporated into the new specifications of National Standards Committee, Ministry of Communications, Ministry of Railways and china civil engineering society, and 8 patented technologies and 4 national construction methods are being declared.
Since the start of construction, more than 250 technological innovations have been carried out, and independent innovation achievements, represented by nine core technologies, have been achieved, and the technical problems of building a sea-crossing bridge in a strong tidal bay have been overcome. At present, six key technologies have passed the national appraisal, and the overall results have reached the international leading level.
The third is management innovation. In the management system, the headquarters has changed the traditional management mode of the director's office, and the owners have assumed most of the responsibilities of the director's office, replacing indirect management with direct management, and comprehensively strengthening the work of "four controls, two pipes and one coordination"; In terms of management mechanism, modern management concepts such as scientific management, fine management and civilized management have been established, and modern management science such as working procedures, management informationization, skill standardization, reward and punishment contracting and operation marketization have been fully implemented.
Through three innovations, the bridge project has made remarkable achievements in quality, safety and progress. In terms of quality management, there was no quality grade accident, which was among the best in the provincial quality cost law enforcement inspection organized by Zhejiang Provincial Communications Department over the years and was well received by the Ministry of Communications.
In terms of safety production, the bridge project has withstood the severe test of severe conditions such as 19 typhoon, astronomical tide and shallow methane, and no serious injury or above safety accident occurred in the construction of the project. On the progress of the project, it took only three years and seven months to realize the whole bridge, and the whole line was opened to traffic eight months ahead of schedule.
At present, five construction units in the whole bridge have won the National May 1st Labor Award, and 10 builders have won the National May 1st Labor Award.
9. Description of Hangzhou Bay Bridge and Scenery Hangzhou Bay Bridge is a sea-crossing bridge across Hangzhou Bay in China. It starts from Zhengjiadai, Haiyan, Jiaxing, Zhejiang in the north and ends at Shuilu Bay, Cixi, Ningbo, with a total length of 36 kilometers. It is the longest sea-crossing bridge in the world at present, which is 1 1 km longer than the King Fahd Bridge connecting Bahrain and Saudi Arabia. It has become the candidate world record for the longest sea-crossing bridge in world record association, China, and the world record after the United States.
The concept of landscape design was first introduced into the design of this bridge. With the help of the aesthetic concept of "Long Bridge Lying on the Wave" in Su Causeway of West Lake, the landscape designer determined the general layout principle of the bridge in combination with the hydrological environment characteristics of Hangzhou Bay and the psychological factors of drivers and passengers while driving. The plane of the whole bridge is S-shaped curve, and the overall linear shape is beautiful and lively. Viewed from the side, the navigation hole bridge of the North-South Waterway is arched and has an undulating elevation shape. Hangzhou Bay Bridge is designed as a two-way six-lane expressway with a design speed of 100km/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 started smoothly in 2003 and was completed and opened to traffic in 2008.
We just went there to play the other day. It's worth a visit.
10. Hong Kong-Zhuhai-Macao Bridge Composition 600 Introduction to the Bridge The motherland is constantly developing and growing, and the nationalities are constantly communicating and integrating. The rapid development of science and technology has made transportation more convenient, shortened the distance between people and narrowed the distance between hearts.
2065438+081October 24th, 10. Today, the Hong Kong-Zhuhai-Macao Bridge, which has attracted much attention, was finally officially opened to traffic, and this significant project finally came to an end.
I can't help feeling that time flies too fast, as if I was sitting in the spacious and bright multimedia classroom of the university yesterday, watching the introduction of the Hong Kong-Zhuhai-Macao Bridge in the first phase of the documentary "Super Project" recommended by the teacher. Everyone will discuss it after class, but I always feel that the day of completion is still far away. But it officially opened in a blink of an eye. It seems that an ideal has come true and witnessed a miracle.
Although I gave up the engineering and construction industry for various reasons after graduation, I still feel very charming and excited that a huge team concentrated on overcoming technical difficulties and finally realized it.
The 55-kilometer cross-sea bridge and the 7-kilometer cross-sea tunnel took 15 years from design to construction, which is recognized as the most challenging project in the world today! It really deserves it.
The design and completion of the project embodies the wisdom and sweat of the builders, and we don't know the hardships.
The completion of the Hong Kong-Zhuhai-Macao Bridge once again proves that China is a world power.
How can an underdeveloped, poor and weak country build a spectacular and magnificent first bridge in the world on its own?
The rise of China has attracted the attention of the world, and one achievement after another is beyond our power.
Faced with this huge and magnificent project, as a Chinese son, my eyes filled with tears. I am proud of the strength of my motherland and the exquisite architecture. Today, let's pay tribute to these super project builders. They are the most lovely people.
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