The United States, as the former "infrastructure madman", gradually receded the craze of the year, repaired the Bay Bridge, which was proud of the year, and there was a large-scale overturn, and the bridge broke again after 30 days!
The Americans have asserted:Whoever has the ability to build the Auckland Bay Bridge is the "No. 1 power in building infrastructure" in the world today!
As soon as the news is released,In this regard, India has openly slandered our country in the international community, claiming that China's existing infrastructure technology and strength are not qualified to build this major project at all.
"Facts speak louder than words"!Once again, our country to:"China's speed" makes the countries that underestimate us "crazy slap in the face", and they actually say in a sanctimonious manner: "We deceived everyone"!
The United States wants to renovate the bridge across the Charles River is a drag and a delayThere is never a clear time for completionAnd what about China?How long does it take to build a bridge?
The bridge to be renovated in Beijing is very similar to the Charles River BridgeThe United States spent three times more than budgeted time。And Beijing's Sanyuan Bridge is twice as long as its lanesThe whole process only took 43 hours, and the efficiency speaks for itself!
How did China's construction team turn the danger into a disaster in the face of the strong difficulties of the US side?
In 1936, the Bay Bridge connecting San Francisco and Oakland was completed and opened to traffic, which saved the time of traders to a certain extent during that "gold rush" in the United States
In the context of the society at that time, it was not easy to build such a bridge with such a long span.
Local back inIn 1869 there was a plan to build the bridgeHowever, the local terrain is really at two extremes, and the sea level is too wide. The bottom of the sea is too deep.
But what is in front of us is not only the technical problem of construction, but also the investment of funds, as the saying goes: "A penny is difficult for a hero"!
It was not until the unanimous local effort that the review time was as high as 61 before it was approvedIt took a lot of manpower and material resources to complete the bridge, with a total cost of 77 million US dollars.
The bridge was one of the largest spans in the world at the timeAfter being measured to a height of 3,102 meters, it has become a mandatory bridge for the two local cities, with a high passenger flow270,000 cars passed over the bridge.
"The house leak happened to rain overnight"!Originally, the bridge was already "old" and could not withstand any fluctuations, but the fate of the nearly 100-year-old was "unlucky".
San Francisco happened 6Level 9 large**, East Bridge E9 pier fracture. A 15-meter section of the bridge collapsed, and by the way, an unlucky person passing by was stoned to death. The U.S. immediately repaired it, and it took a month before it reopened.
In 2002, they renovated the west span of the bridge to increase the seismic effect and replace the structural elements, which was completed in 2004, and the east bridge was renovated again in 2009, and it was completed in three days, but no one in the United States inspected it. A month later, a section of steel beams and two steel tie rods collapsed, which suddenly broke. This American company obviously takes money and does not do practical things, and the tofu scum project has come out.
This is the third time he has repaired it, and before that, two pilots hit their heads on it and died on the spot, and the repair again and again made him brittle, soThey decided to invest $7.2 billion to rebuild the Bay Bridge!
The United States' most former "infrastructure maniac" built bridges in a very orderly mannerBut when it comes to complex bridge repair work, it's really good to face areas that you are not good at."One head and two big"!I don't know where to start.
Their repair work failed to find the problem at the source, and it was always broken and repairedThe people on both sides of the strait are even more complaining, accusing the local leadership of the bridge repair"No diamonds, don't do porcelain work".At this time, the relevant leaders realized that the level of their own country is indeed limited, and professional things should be left to professional people to complete!
The United States began bidding internationally to recruit a team of professionals to build the bridge, and offered a sky-high price of $7.2 billion**Once exposed, countries around the world have taken the ability to take care of their homes in the face of "such beauty differences", after a fierce round of competitionChina's - Shanghai Zhenhua Heavy Industry Co., Ltd. has won the first place with its excellent professional strength
It is also the only subcontractor of the bridge, and the Americans say that as long as the bridge can be repaired, then all steel bridges in the world will be no problem.
This construction can be described as: "There is no one before, and there is no one after"!
In order to test our strength, the United States also personally sent people to visit Changxing Island, which is a super factory covering an area of 1 million square meters.
It is China's machinery and equipment manufacturing base and the largest production base in the worldLao Mei asked us to build a bridge, but she didn't want to be our pedal, in order to make steel structures for them, and to let the world know that China's infrastructure is rising.
Asking for "software" in disguise?!Welders must have an American Welding Society certificate.
Holding a certificate to work, I guess they won't expect that I just welded a steel bar, why do I have to learn English?
After Zhenhua Heavy Industries received the notice,Immediately stabilize the mood of the team and immediately start boosting moraleAs long as the employees who pass the exam, they will be rewarded handsomely, and in the upcoming exam, the workers are also very good, and they have successively obtained certificates.
There is no factory on the American side that can do it4.50,000 tons of steel structure manufacturingWe have to solve all the problems we encounter by ourselves.
Among them, to build a steel tower weighing 10,000 tons, the technical difficulty is very high!
To make sure nothing went wrong, we decided to make a demonstration model first, but it always failed at the last step, and both the Chinese and American teams started to get angryThe contract stipulates that the fine of $300,000 for one day of overtime is not capped, and money is not made in this way.
After 8 months of unremitting work, we finally found the source of the problemSuccessfully saved the day and avoided a war of words between the two sides.
America's expectedThe assembly accuracy is 1 1000, and our country's assembly is fineThe accuracy is as high as 1 2500, it is simply a super high standard to complete the assembly work.
The problem is one after another, the steel tower is built, and how to transport it to the United States
At that time, there was only one company in the Netherlands that could transport it, weWhen asking for help, the other party asked for a price, take the money and do not do anything, and the delivery time cannot be guaranteed.
Zhenhua decided to build it himself, to build the best in the world, and China's technology was forced out
A year later, we had our own transport team, which made the Netherlands regret not doing it in the first place.
Those who underestimate us will eventually be swallowed up by us, and the construction team will once again exert their strength and sail to the United States with the built structure.
Arrived on schedule!It also saved the Americans $400 million in transportation costs.
After the arrival of the goods, we still installed and welded it ourselves, and the Americans did not have the most basic inspection, and they all created the tofu slag project, not to mention the unknown ChinaAt that time, many people did not understand that the Americans here were still opposed to the use of Chinese technology
The local leadership team of Laomei also wanted to replace us because of the doubts of the outside world, but China is the only one who meets the requirementsThey found another way to oversee the work, and sometimes 10 Americans could stand behind a worker.
In 2013, the Xinghaiwan Bridge was officially completed in China, breaking the world record again, which is the largest span steel bridge in history.
Although there are many difficulties in the process of building the bridge, there are also ultra-high standards, but it is also effectiveIt has increased the visibility of China's infrastructure!
It has cultivated a large number of outstanding welding workers for China, and the once unknown Chinese market has become famous since then!