Lead
In 2018, there was a new bridge across the Xiangjiang River in Hengyang, Hunan Province, which played an important role in urban transportation, but the new bridge was closed by the local relevant departments only about 1 month after it was opened to traffic, and it was no longer open to the public, and even carried out countless transformations, which made it look embarrassing as a whole.
Not only the residents of Hengyang, but also many passers-by of the new bridge were shocked.
Later, it attracted the confusion of American researchers, and the Americans began to study the new bridge here, but they never understood it, and even many people in China did not understand it.
So, why did the mainland end up at this point?
How was the Xiangjiang New Bridge built?
What's going on with this new Xiangjiang bridge?
Xiangjiang New Bridge is an overpass that is convenient for urban traffic, built by Hunan Construction Group Group Company, as an important part of Hengyang's "Ring City Bridge", the bridge is about 5.3 kilometers long, including the martyr's park connecting Hengyang urban area, and the section of the west exit is 3.2 kilometers.
Because the main road surface of the Xiangjiang New Bridge is 70 meters away from the water surface of the Xiangjiang River, this also leads to the whole bridge to cross the Xiangjiang River, and the north-south direction is very short, so this is also the main reason why the Xiangjiang New Bridge can appear in the form of a bridge on the Xiangjiang River.
So how was the Xiangjiang New Bridge built?
It is through the "grand engineering method" that all the bridges are built and compounded.
The so-called "grand engineering method" is to use cranes and other equipment near the city road to do a good job of the bridge first, and then lift the bridge body through a large crane, and finally connect the bridge body, because this way is complex, so the construction of this new bridge on the Xiangjiang River also consumes a lot of manpower, material and financial resources.
In 2017, the Xiangjiang New Bridge began to lay the bridge deck, the main material for laying the bridge deck is bamboo, obviously, the load-bearing capacity of bamboo and wood is insufficient, so there were some small episodes during construction, but the workers overcame it little by little, and finally laid the bamboo and wood.
In order to ensure the quality of the new bridge, Xiangjiang New Bridge has also carried out a detailed inspection of each brick, only the quality of qualified bricks can be used for the construction of the bridge body, and because of this, the firmness and stability of Xiangjiang New Bridge are very high, which can be said to be very safe.
In July 2019, the newly built Xiangjiang New Bridge was approved for acceptance, and the water of the Xiangjiang River under the bridge gradually returned to the previous water level.
What is the reason for the road closure of the new Xiangjiang New Bridge?
After the opening of the Xiangjiang New Bridge, after a period of time, all aspects of the problems emerged one by one, but this "problem" is too big, not only the citizens of Hengyang, but also some people passing by the Xiangjiang New Bridge are very shocked, feel that the Xiangjiang New Bridge is not only inconvenient to travel, but even hinder the movement of vehicles.
Soon, some residents went to the local government where the Xiangjiang New Bridge is located and demanded that the Xiangjiang New Bridge be removed, which also made the local government feel very distressed.
On September 20, 2019, the Xiangjiang New Bridge was closed, and it is reported that the reason for the road closure is that the bridge deck and bridgehead of the Xiangjiang New Bridge have a very serious phenomenon of falling off the tower, even children can see it, which is also very puzzling, and even this phenomenon will occur, but it is precisely because of this problem on the bridge deck and bridgehead of the Xiangjiang New Bridge, so the local government has closed the road to the Xiangjiang New Bridge.
In order to understand the situation of Xiangjiang New Bridge, some engineers also carried out careful testing of Xiangjiang New Bridge, and found that the actual situation of Xiangjiang New Bridge is different from the external situation, and there are more internal problems.
After the closure of the Xiangjiang New Bridge, in order to make the Xiangjiang New Bridge truly solve the problem, someone issued an "edict" to the Xiangjiang New Bridge.
First of all, the Xiangjiang New Bridge was demolished, and part of the bridge body of the Xiangjiang New Bridge was dismantled, hoping to see clearly what caused this situation in the interior of the Xiangjiang New Bridge.
It didn't take long for the Xiangjiang New Bridge to be demolished, because the bridge body of the Xiangjiang New Bridge was relatively large, so the Xiangjiang New Bridge was demolished for a relatively long time, it took several days of work, part of the bridge body of the Xiangjiang New Bridge was finally demolished, in front of everyone, it was a huge stone basket, the local government also carefully observed the Xiangjiang New Bridge, and finally came to the conclusion that everyone was very surprised, the original Xiangjiang New Bridge off the tower phenomenon is because the ventilation performance of the Xiangjiang New Bridge is not good enough, It is good enough to determine the cause of the tower off phenomenon of the Xiangjiang New Bridge, and also to carry out follow-up maintenance and improvement of the Xiangjiang New Bridge.
What doubts do American researchers have about the Xiangjiang New Bridge?
In 2019, a group of scholars in the United States conducted research on the Xiangjiang New Bridge.
American scholars believe that the phenomenon of tower detachment of Xiangjiang New Bridge is due to the insufficient wind resistance level of Xiangjiang New Bridge, and its material is also very fragile, which is why the phenomenon of tower detachment occurred after the construction of Xiangjiang New Bridge.
The reason that American scholars think is also recognized by some Chinese, but there are not many people in this aspect, most Chinese do not agree with the statement of American scholars, domestic scholars believe that the phenomenon of Xiangjiang New Bridge off the tower is because of the poor ventilation performance of the Xiangjiang New Bridge, which is the real reason for the phenomenon of the Xiangjiang New Bridge off the tower, and it is also the reason why the local government wants to close the road to the Xiangjiang New Bridge.
epilogue
In the end, an old professor of engineering in China refuted the remarks of American scholars, and the old professors of engineering in China thought that the demolition and reconstruction of the bridge was nonsense.
Xiangjiang New Bridge was closed due to the poor ventilation performance in the early stage, Xiangjiang New Bridge has been reopened to the outside world a year later, and it is hoped that the ventilation performance must be done when the bridge is built in the future.