After the completion of the Fifth Xiangjiang Bridge, all the positions on both sides of the main bridge arch, the arch cables and the approach side of the main bridge are illuminated by LED lights, which highlights the outline and outlines the unique shape of the whole bridge, just like a dragon hovering overhead on the Xiangjiang River. The cables in the arch of the bridge present a sense of rhythm of music, which is refreshing. The pier part is illuminated by sodium lamp, which forms a golden light effect, reflecting the sense of stability at the bottom of the bridge, glittering and translucent and soft.
According to the ecological design, the greening landscape project of Xiangjiang Fifth Bridge is based on rich green, and the landscape of plant communities is pursued at both ends of the bridge. Based on the diversity of species, plant landscaping strives to achieve ecological and beautification functions as much as possible in a certain space. In the greening area at the bottom of the bridge, the rough reinforced concrete contours such as climbing plants, small shrubs and turf are softened, making the bridge scenic area more eco-friendly.
The whole bridge painting project has been added to the Fifth Xiangjiang Bridge. The approach bridge box girder and column shall be painted with silver-gray Du Fang paint, and the approach bridge collision wall, main bridge railing and steel box arch shall be painted with white fluorocarbon paint. The whole bridge body is simple and beautiful.
Under the supervision of the owner and the supervision unit, the construction unit CCCC No.2 Navigation Bureau made scientific scheduling and strict management, and the project quality was good, the safe and civilized construction was effectively controlled, and no major safety accidents occurred. By grasping the progress, the contract period was completed six months ahead of schedule. Jianning ancient town is still radiant; Electric power Zhuzhou, a new chapter. Five bridges fly, relying on steaming people together; Everything goes well and everything is United. It lasted for two years and became a century-old plan; Gather talents and build a century-old project. Arch beam steel structure, meaning iron shoulder morality; Intercity thoroughfare is only for business travel and people's livelihood. Connecting Beijing, Zhuhai and Shanghai to attract the development of phoenix nesting; Connect Zhejiang, Jiangxi, Sichuan and Guizhou, recruit talents and build a new city. It is necessary to optimize the environment and attack the park; The quality of the city has improved, but the roads and bridges have come first; Tourism is heating up, relying on convenient transportation; Development stamina, in the four modernizations and two types; In Sri Lanka, you should not bear the great trust; Governing the country is the right way, and loving the people is the reason. After the completion of this bridge, I feel a lot of comfort. It is called "the bridge to remember kindness, the bridge to connect people's hearts, and the bridge to link the past with the future".
Is to remember.
Chen Junwen
20 10 year1February 26th —— Written when the Fifth Xiangjiang Bridge (Songlu Bridge) in Zhuzhou City was completed and opened to traffic.
Zhuzhou Daily Ye Xinfu Song Kai
2010 65438+February 26th, destined to be recorded in the history of Zhuzhou development.
Today, the Fifth Bridge of Xiangjiang River (Songlu Bridge) was born, flying across Xiangjiang River, making the two arteries of Lushan Road and Honggang Road perfectly connected in one go, connecting things;
Now, the brave and skillful Erhang has built another bright pearl on the "Oriental Rhine" with a record of half a year ahead of schedule, and the resounding brand of "Bridge-building Iron Army" has been confirmed again;
Nowadays, the traffic map of "Three Rings and Seven Shoots" is completely a foregone conclusion. Zhuzhou Shanshui Bridge City, Five Bridges Qi Fei and Road Network are integrated. With smooth blood flow and endless vitality, Zhuzhou has entered the fast lane of a new round of scientific leap.
Scientific scheduling, opening to traffic six months in advance.
The beautiful Xiangjiang River passes through the city, which makes Zhuzhou a unique charm.
Bridge, witness the pace of speed-up of Zhuzhou, an ancient and young city. From Zhuzhou Bridge to Shifeng Bridge, Jianning Bridge, and then to Tianyuan Bridge, Zhuzhou galloped all the way.
Bridge, like a "living child" in a chess game, shines brightly when the pieces land. The municipal party committee and municipal government sized up the situation, positioned bridge construction as a key project to promote leap-forward development with great foresight, made strategic arrangements to catch up with the progress and leap-forward development, and constantly accelerated the pace of traffic facilities construction. On June 29th, 2007, the groundbreaking ceremony was held for the Fifth Xiangjiang Bridge. In May of the following year 18, the project officially started construction.
The Fifth Xiangjiang Bridge was invested and constructed by CCCC Second Waterway Engineering Bureau Co., Ltd. (hereinafter referred to as the Second Waterway Engineering Bureau). The bridge type is a three-span arch beam steel structure combination system, starting from Tianyuan District in the west and connecting with Lushan Road. East to Lusong District, connected to Honggang Road, the main line of the whole bridge is 2495.6 meters, in which the total length of the main bridge is 182 1.6 meters, the main bridge is 33 meters wide and has six lanes in both directions. The estimated total investment of the project is 7 1 10,000 yuan, and the construction period is 36 months.
In the past three years, with the strong support of the Second Navigation Bureau and relevant departments of Zhuzhou City, the project department of Xiangjiang Fifth Bridge has overcome the rare natural disasters of ice and snow, the low water of Xiangjiang River, the delay of demolition and other difficulties, carried forward the spirit of "striving for scientific and technological leadership and creating first-class management", carefully organized, scientifically managed, strictly programmed and civilized construction, and carried out activities such as pioneering project in party member, labor competition and striving for harmonious project, and comprehensively and smoothly promoted the bridge construction.
Urban development, traffic first. At the end of 2009, according to the needs of the rapid development of urban construction, Zhuzhou Municipal Government reached an agreement with No.2 Aviation Administration, requiring the Fifth Bridge to be opened to traffic six months in advance, which was included in the government work report.
Under pressure, the Fifth Bridge Project Department quickly adjusted the construction plan, increased the investment in personnel, materials and equipment, signed letters of responsibility layer by layer, launched labor competitions, and implemented the progress reward and punishment system on the premise of ensuring quality and safety. The enthusiasm of all staff is high, all work is accelerated in an all-round way, and plans are overfulfilled one after another. The construction period of the hanging basket was shortened by 4 days on average, and the main bridge was closed half a year ahead of schedule to ensure that the whole bridge was opened to traffic at the end of the year, half a year ahead of the expected target.
The rainbow flies down the Xiangjiang River, and the new city rises in the present. After the opening of the Fifth Bridge, it will form the inner ring of the city together with Tianyuan Bridge, Jianshe Road and Changjiang Road, share the traffic pressure in the central area of the city and improve the urban traffic environment, which will effectively promote the construction of a harmonious and ecologically livable Zhuzhou.
Strategic choice, continuous cooperation for three times
"The Fifth Xiangjiang Bridge continues the good cooperative relationship between the Second Navigation Bureau and Zhuzhou City." Zhang said, project manager and party branch secretary of Xiangjiang Fifth Bridge.
The strategic cooperation between Zhuzhou City and No.2 Aviation Administration has a long history. The first project is the lock project of Zhuzhou Navigation and Power Hub. Subsequently, the Second Navigation Bureau undertook the first BT project in Zhuzhou-the Fourth Xiangjiang Bridge (Tianyuan Bridge). This bridge has created the fastest record in the history of bridge construction in Zhuzhou, and won the 2007 Hunan Quality Engineering Award.
The Fifth Bridge of Xiangjiang River is the second BT project, which is still invested and constructed by the Second Navigation Bureau. After the completion, Zhuzhou will buy back by means of government procurement and installment payment.
"An important reason for choosing the Second Navigation Bureau to build the Fifth Xiangjiang Bridge is that there was no quality and safety accident during the construction of the Fourth Xiangjiang Bridge." On February 17 last year, Chen Junwen, secretary of the Municipal Party Committee, came to the construction site of the Fifth Xiangjiang Bridge again, telling him to ensure the quality and safety, and asked the relevant departments to give full support to create a good environment for the project construction. Wang Qun, deputy secretary of the municipal party committee and mayor, visited the site of the Fifth Xiangjiang Bridge many times to learn about the progress, quality, civilized construction and safety in production.
For Zhuzhou, the Second Navigation Bureau is a trustworthy partner. Established in 1950, No.2 Navigation Bureau is a wholly-owned subsidiary of China Communications Construction Co., Ltd., a fortune 500 company in the world, and is a special general contractor of highway engineering construction.
First-class qualification for general contracting of port and waterway engineering construction and general contracting of municipal public works; More than 200 docks of various types have been built, and nearly 100 bridges across rivers and seas have been built and participated in; In the construction of Jiangyin, Wuhan Junshan, E Huang, Runyang, Wuhan Yangluo and other Yangtze River bridges, many domestic bridge construction records have been created, and the world's largest span cable-stayed Sutong Yangtze River Bridge, the world's longest sea-crossing bridge Hangzhou Bay Bridge and the world's largest span steel truss arch bridge Chongqing Chaotianmen Yangtze River Bridge have been built.
In contrast, among many large-scale projects attracting worldwide attention in the Second Navigation Bureau, the fifth Xiangjiang Bridge project with an estimated investment of 7 1 10,000 yuan can only be regarded as a small project. However, from the date of preparation of the project, the leaders of No.2 Aviation Administration and the four companies in charge of construction paid special attention to this, and listed this project as the seventh item of the "Top Ten Projects" this year to ensure its completion and opening to traffic this year.
On March 9th this year, Wang, the general manager of No.2 Navigation Bureau, came to the Fifth Bridge Project Department of Xiangjiang River again to check the progress of the project, and asked to ensure that it was opened to traffic in advance at the end of the year. We also discussed further deepening the cooperation between No.2 Aviation Administration and Zhuzhou and investing in the construction of the Sixth Xiangjiang Bridge.
Exquisite skills, three major difficulties
If you want to realize a dream, you should realize it without regrets.
During the construction, No.2 Navigation Bureau introduced advanced technology, and constantly overcame the key points and difficulties in the construction of large-diameter pile foundation, V-shaped bracket and basket box arch, which ensured the construction quality of the bridge and benefited the people of Zhuzhou.
One of the difficulties: 3.5m large diameter pile foundation construction.
3 1# and 32# at both ends of the highest arch of the bridge are the main bearing piers, and 8 rock-socketed piles with a diameter of 3.5m are arranged under each pier. It is the first time to use drilling technology to drill such a large pile foundation in the Second Aviation and Electricity Bureau. For this 16 pile, the project department invested more than 2 million yuan and specially purchased 3 drilling rigs. After many demonstrations and careful construction, the project department broke through the technical difficulties of the super-large diameter underwater bored pile foundation, successfully poured it to a depth of 28 meters, and achieved the goal of high quality and safety.
The second difficulty: construction of curved thin-walled prestressed V-shaped support.
V-brace, that is, the V-shaped main pier in the water, is like a pair of huge open arms supporting the main body of the bridge, with beautiful appearance, but the technology is quite complicated and the construction is very difficult. The project department invited experts from all sides to hold a plan review meeting for many times, and every step was repeatedly scrutinized to be foolproof. From the first concrete construction on February 22nd, 2009, which lasted more than four months, the project department successfully solved many problems in V-shaped support construction, such as curve, thin wall, prestress, rigid skeleton and so on, and successfully completed the main construction nodes.
The third difficulty: the installation of the basket box arch.
The basket box arch is three arcs arched on the bridge deck. The arch rib of the main bridge is a basket-box arch with an inclination of 3.8 14. The height of main arch is 30m, the height of side arch is18m, and the maximum segment weight of main span arch rib is 70.2 tons, which is another big test for construction. After demonstration, the construction workers processed the arch rib into small pieces in the factory, transported it to the top of the box girder, then spliced it and installed it with gantry crane, which successfully solved this technical problem.
In the past three years, the project department has used advanced technology and exquisite craftsmanship to overcome technical problems and capture engineering nodes, and turned the Fifth Xiangjiang Bridge from a blueprint on paper into a flourishing boutique standing on the Xiangjiang River.
Harmonious project, build a monument.
When I went to work yesterday morning, Zhang, the secretary of the project department, walked on the bridge again and inspected it carefully from west to east. It has become his habit to patrol regularly every day.
"Since the start of construction, there has not been a quality and safety accident in the Fifth Bridge Project." Zhang proudly said that at the beginning of construction, the project department started the "Harmony Project" in accordance with the requirements of "carrying forward the spirit of the Second Aviation Company, striving for a harmonious project, and building the Fifth Bridge to benefit the people of Zhuzhou", striving to achieve the "five zeros" goals of zero quality defects, zero safety accidents, zero risk management, zero service and zero clean government cases, and making the construction of the Fifth Bridge a peace of mind for the owners, the government, and the supervisors.
A century-long plan, quality-oriented. From the start of construction, the project department will decompose the target responsibility for the quality management of the bridge, refine the quality management, implement the responsibility to people, and link it with rewards and punishments. The project department will also conduct spot checks with the owner and supervisor from time to time, from raw materials entering the site to construction site control, from scheme approval to calibration of various instruments, from concrete appearance control to indoor data collection, and conduct all-round inspection on quality management.
People-oriented and safety first. The Fifth Bridge is a municipal super-large bridge, which is located in the center of the city and crosses the main roads of the city. It also needs to carry out interchange operations on water, land, high altitude and underground, and the safety issue is more important. In order to ensure the construction safety, the project department set up a special organization, formulated a series of safety production guarantee systems and rules and regulations, and formed a good atmosphere in which everyone attaches importance to safety.
In order to support the creation of health civilization in Zhuzhou City, the Fifth Bridge Project Department strictly manages and carries out civilized construction to keep the construction site orderly for a long time. The office and living area are civilized and tidy, which has been praised by the party and government leaders and local colleagues in Zhuzhou for many times. The project department has been rated as a safe and civilized construction site in Hunan Province for two consecutive years.
Do a project, create a brand and build a monument. The civilized and safe construction of Xiangjiang Fifth Bridge Project Department has set up a banner in Zhuzhou construction market, which has been widely praised by Zhuzhou Municipal Party Committee, Municipal Government and the general public. Zhuzhou Municipal People's Government awarded the title of "Tiejun Bridge Building" to No.2 Aviation Administration, and Hunan Provincial People's Government awarded the title of "Advanced Construction Unit of Provincial Key Construction Projects" to the Project Department.
Centennial Bridge, witnessed by Xiangjiang River. Dare to fight and fight, skilled five-bridge construction iron army, in the Millennium Xiangjiang River, added a touch of bright color to the brand Second Airlines; In Zhuzhou, a new industrial city, a solid platform of "ensuring two and striving for one, and leaping forward scientifically" has been poured, igniting Zhuzhou people's infinite reverie for a better tomorrow.