Innovation and breakthroughs created a number of "the world's most", Gao Zongyu used more than 50 bridges to build a bridge life

Academician Gao Zongyu. Correspondent Cao Xue Wang Mengyu Photo Conferry

On June 25, the Hubei Provincial Science and Technology Innovation Conference was held in Han. Gao Zongyu, an academician of the Chinese Academy of Engineering and the chief expert of the China Railway Bridge Survey and Design Institute, won the 2021 Hubei Provincial Science and Technology Promotional Contribution Award.

Gao Zongyu is humble and gentle. He said: "The purpose of innovation is not to make new differences, but to continue to improve. The achievements today are just a new starting point for tomorrow's career."

As a technical person in charge, he has always adhered to the front line of bridge scientific research, design, and construction, and continuously innovative design methods and structural systems, research and development common technologies in high -speed railway large span bridges, multi -tower cable load -bearing bridges, complex environment cross -sea bridge construction fields , Creative solving engineering technical problems. The host designed more than 50 extra large bridges including the Beijing -Guangzhou and Beijing -Shanghai high -speed rail across the Yangtze River Bridge. These "the most" of the "world" are like pearls, holding his life.

Innovation breakthroughs

Create "the most in the world"

At the beginning of the 21st century, how the high -speed rail crossed the Yangtze River has attracted much attention from the industry.

According to the Beijing -Guangzhou High Railway Line plan, a highway and high -speed railway bridge need to be built on Tianxingzhou, Wuhan Tianxingzhou. To ensure the safe traffic of cars and high -speed rails, and to ensure that all kinds of tonnage ships are smooth, the main span of the bridge must reach more than 500 meters, and a series of challenges follow.

The upper floor is running and the lower -level train. The Tianxingzhou Yangtze River Bridge is shared by the fourth -line railway and six -lane road. The total weight is equivalent to the 34th lane highway.

Increasing the load of large spikes, there are no precedents in China and even the world.

In the past, the two -purpose bridge of the public railway mostly adopted the "two main trustees" structure, and this super bridge was obviously not applicable.

How to do? After careful consideration, Gao Zongyu and the team carefully deduced, and boldly proposed a brand new plan- "Three Cable Faces and Three Main Torons" structure, which is the first case in the world.

Once the plan was proposed, a heated discussion was caused. Some foreign experts questioned: After adding a cable cable, the structure of the bridge is complicated. How to ensure the safety of the bridge? There are many access to cantilever installation, and the construction stand is difficult. How to ensure that the bridge can be completed smoothly?

Gao Zongyu led the team to carry out key technological research, developed design software with independent intellectual property rights, and comprehensively demonstrated the driving performance of the bridge. For the characteristics of the three main trussee cantilever installation points, the development of automatic control rack cranes with a successful load of 700 tons were developed , Realize multiple stagnation and accurate confrontation. Compared with the traditional structure, the driving performance of the new structure is good, saving 3,300 tons of steel, saving more than 110 million yuan for the cost of the project.

On December 26, 2009, Wuhan Tianxingzhou Public Railway Dual -use Yangtze River Bridge, which was maintained by 504 meters, was opened to traffic. The high -speed rail across the Yangtze River for the first time. my country's high -speed rail map and transportation pattern opened a new page.

The bridge has gained the 27th International Bridge Conference George Richardson Award and the first prize of National Science and Technology Progress. "Three Corporal Noodles and Three Main Torons" have been adopted by most large span bridges since then.

He filmed

The bridge span increases from 630 meters to 1092 meters

Gao Zongyu attended the National Committee of the Chinese People's Political Consultative Conference. Correspondent Cao Xue Wang Mengyu Photo Conferry

Nantong and Suzhou, separated by Yijiang. Once upon a time, from Nantong to Suzhou and Shanghai, we needed a big bend.

With the promotion of the integrated development strategy of the Yangtze River Delta, the Hangs and Soviet -Soon Yangtze River Gongtailong Bridge has been set up, which has become the expectation of people.

The planning bridge selected by the Shanghai -Soviet Tong Yangtze River Bridge is near the entrance of the Yangtze River. One calculation, the span of the bridge is more than 1 kilometer, reaching 1092 meters!

At that time, the same type of bridge at home and abroad was only 630 meters spanning, and it was still under construction. From 630 meters to 1092 meters, the span increased by 70%.

The larger the span, the sharp growth of the material, and the weight of its own weight. According to statistics, the number of steel for the construction of the bridge reaches 480,000 tons, equivalent to 12 "bird's nests", and 2.3 million cubic meters of concrete, which is equivalent to 8 national theaters. With such a large weight, can the bridge itself bear it? Can a high span, can you bear high -speed trains? The cross -degree of the bridge is too large, how to better wind and earthquake?

"Can you do it?" "Is the step bigger?" Everyone had no bottom, and put her attention to Gao Zongyu.

Gao Zongyu visited over and over again, computing and deduction over and over again. Based on years of experience and meticulous analysis, he believed that it was feasible and finally shot -do it!

On July 1, 2020, the Shanghai -Soviet Connect Yangtze River Gong Railway Bridge was successfully opened to traffic. The national trunk railway, intercity railway and highways are integrated, which can resist the impact of level 14 typhoons, level 8 earthquakes, and 100,000 tons of ships. The high -speed rail on the bridge is flying, and the giant wheels go through the bridge.

China Railway Bridge has undertaken many bridges that create world records. As leaders of technology, some major technological innovations are inseparable from Gao Zongyu's decision -making support.

Design Wuhan Yangtze River Second Bridge, he used 2 616 meters span to solve the problem of navigation in the 1200 -meter deep -water area; when designing the Fuzhou Qingzhou Minjiang Bridge, he spent 1 year designing accurate calculation software to save 20%of steel for the bridge. Save more than 30 million yuan in funds; when designing my country's first cross -sea bridge, the sea section outside the Shanghai Donghai Bridge, Gao Zongyu and his colleagues proposed the concept of "prefabrication, overall, and factories", which greatly improved the efficiency of bridge construction; presided over the design of the Zhengzhou Yellow River to design the Zhengzhou Yellow River When the public iron two -purpose bridge, he designed the steel truss beam as a unique inverted trapezoidal, setting a new record of the world's large bridge traffic speed; when the "Bridge Bridge Forbidden Area" designed my country's first cross -Strait Gongtie Bridge, he and the team were born in the team. The idea of ​​the bench on the rock is used to use the catheter frame technology of the sea oil drilling platform to the field of bridge engineering, so that the positioning of the steel pipe pipe "sticky" on the bottom rock ...

Lead the Chinese bridge to continue leading

Gao Zongyu (second from right) accompanied Academician Fang Qinhan to investigate in Nanjing Da Shengguan Bridge. Correspondent Cao Xue Wang Mengyu Photo Conferry

In the China Railway Bridge Institute, when it comes to Gao Zongyu's technical ability, everyone will have a thumbs up: in the 1980s, my country had no ready -made bridge design software. He is in a leading position; he has a solid basic merit. "A drawing is handed over to his hands, and he can see what is wrong at a glance." He has rich knowledge reserves, and his brain seems to have a "database".

And his hard work is unknown: there is a whole wall book in his office. Others are resting in entertainment. He is studying in the study of Wuhan. While ordering the procedure, while calculating and perfecting, tens of thousands of data, it takes 10 hours to calculate it for half a year. As the chief expert of the China Railway Bridge Academy, many major engineering technical schemes in the hospital need him to go through At that time, he often had insomnia and hair loss, and he had been thinking about eating and sleeping.

Young engineers who had dealt with him knew that in Gao Zongyu, he could not do "sir".

He asked very well and liked to ask. The datagram came out, he asked if he had no nuclear, who was nuclear, what the item was used, and what theory was used. This theory was not appropriate to put it here. Why do you think it should be done? Some guys were not prepared in advance, and they were anxious, and directly squeezed out "almost" and "how many about how much". He immediately criticized: "You can't be almost the same, how much should it be!"

In the eyes of young engineers, he is a good teacher. Xiao Haizhu, chief engineer of the China Railway Bridge Academy, has worked with Gao Zongyu for more than 20 years, saying that he is his real apprentice. "Once the data of a cable bridge was always wrong, and in a hurry, he put down the job in his hand and helped me check the mistakes little by little." Xiao Haizhu said, "He has never been teaching technology. Reserve, I'm afraid you can learn too slowly, you can't wait to cultivate it all at once. "

Technically, Gao Zongyu has always been in front, and he showed up and had honor, but he pushed again again. At the opening ceremony of the Shanghai -Soviet Tong Yangtze River Railway Bridge, everyone called him several times, and he quit, "Still not, these are everyone's credit." In the end, everyone had to drag him.

He was also the last speech on the review meeting. "If I was the first speech, it was likely to give people the feeling of tone. I don't want everyone to dare to make different opinions because of me."

Speaking of future plans, he is endless: to face a new round of research such as large -span bridges, cross -sea bridges, and dangerous mountain bridges, we must focus on the needs of major national engineering construction; Below, promote China's industrial technological progress.

In the future, with the efforts of the bridge builders represented by Gao Zongyu, the glory legend of the Chinese bridge will be continued.

(Changjiang Daily Reporter Gong Ping Correspondent Cao Xue Wang Mengyu)

【Edit: Wang Yujin】

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