This time-lapse video of Chinese workers modifying a bridge will astonish you
Humans have created marvels with architecture right from the times of Pyramids to the modern skyscrapers. We still are in much awe of the architectural genius that went into building those huge buildings. Apart from Pyramids, most of the ancient and old buildings have stood the test of time.
As with them, the modern architectural wonders are also to be reckoned with, like the Empire State Building, the Burj Khalifa, the Petronas Towers and many more such buildings, which are the result of geniuses working on new methods of building things quickly and securely.
A Chinese company made a skyscraper in under a month and similarly, another company has now replaced an entire bridge in under 2 days. See this amazing feat though a time-lapse video and be ready to be stunned.
1 The bridge
The Bridge is the San Yuan Bridge located in Beijing. It is a 1,300 ton bridge that sees more than 200,000 vehicles ply over the bridge each day. It is a major overpass bridge located on the 3rd Ring Road in Beijing. It is on the northeastern stretch of the road and was opened in 1984. It links three main passages: the Airport Expressway, Jingshun Road, which is also known as the China National Highway 101 and a 3rd Ring Road.
The bridge has gone through many rough years and the government found something amiss in the bridge during the yearly inspection. This led them to take a call taking the public safety in the view. The construction work on the repairs of the bridge was planned 11 times to get the replacement beams built to exact measurements and the government also wanted to ensure that the replacement takes place in the planned time limit.
2 The operation
The bridge was opened in the year 1984 and after 32 years of operation, the Beijing government requested a replacement of the bridge as the beams of the bridge had lowered due to heavy traffic and environment taking its toll on the bridge. The beams had to be replaced for safety reasons, but due to it being a major passageway, connecting 3 important roads, the construction work had to be completed in minimum possible time.
The operations began on November 13 at 11 pm and the first the old beams were removed. Engineers realized that the beams were way too damaged to be repaired and had to be replaced and that increased the time of completion from 24 hours to 36 hours.
3 Finalizing the operation
The engineers then replaced the old beams with pre-built plate of beams which measured 180 feet in length and 147 feet in width. They were placed in the grooves with the help of two mechanical pulleys which were used to slide them in place. Once the beams were replaced, they were covered with tarmac and everything was checked once again, so that the road could be reopened at 6pm on November 15.
Previously also, a company in China built a 57-storey skyscraper in just 19 days using pre-built parts and the building was assembled in place using a slew of pulleys and cranes in the Hunan Province of China. A construction company by the name of Broad Sustainable Building; achieved this feat by building the 57 storey Mini Sky City in Hunan provincial, the capital of Changsha.
4 The video
In this video, you can clearly see that the engineers worked round the clock in tandem to replace the damaged parts of the bridge. The head of the project said that if the traditional method for replacement and repairs was used, the road had to be closed down for a period of 2 months. The workers used the ‘integrated replacement method’ and did this amazing job of replacing such a major bridge in just two days.