China News Service, Zhangjiajie, June 25 (Reporter Deng Xia) Holding a hammer, he slammed into the "scarred" glass bridge deck, and the slag splashed everywhere, and the third layer of glass cracked after 154 hammers. Under the glass bridge deck is the 300-meter-deep Grand Canyon. Looking down, you can’t help but feel dizzy.
The heavy hammer that Chen Zhidong personally operated had an amazing effect, which made the onlookers around him scream and retreat.
"No problem, people can still pass." The person in charge of Zhangjiajie Grand Canyon Scenic Area in Hunan Province is full of confidence in the endurance of his own glass bridge.
Located in Lishuya and Wuwangpo of Zhangjiajie Grand Canyon Scenic Area, this glass bridge is 430 meters long and 6 meters wide. The bridge deck is paved with 99 pieces of tempered glass laminated by three layers, with a thickness of only 0.6 meters, creating a number of "the best in the world" such as the world’s longest, the world’s highest and the world’s first large-scale bridge with glass as the main load-bearing structure.
On the 25th, 30 beautiful women and strong men were invited to Zhangjiajie Grand Canyon Scenic Area. They took turns to pound the same bridge deck glass with a hammer weighing 5.5 kilograms, and let a car weighing two tons pass on the broken glass bridge deck.
The scenic spot hopes to alleviate people’s doubts about the safety of glass bridges through this most intuitive test method.
The reporter saw at the scene that after the first hammer went down, there was a crack in the first layer of bridge deck glass; After a dozen hammers, the cracks spread around like cobwebs. After fifty hammers, the car carrying ten beautiful women passed safely through the "scarred" bridge deck glass, and at this time the glass only cracked the first layer.
After a hundred hammers, ten carefully selected muscular men went into battle, only to see that they swung the hammer and slammed it hard at the glass. The first layer of glass was completely broken, and a lot of glass slag could be dug out with a little effort, and the second layer of glass also cracked quickly under heavy blows. As Chen Zhidong’s last hammer fell, the third layer of glass was also "scrapped".
"After the third layer of glass cracks, you don’t have to panic, just evacuate quickly and orderly." Chen Zhidong explained that each bridge deck glass consists of three layers of tempered glass, and the middle is bonded with special glue. Even if it cracks, it will not break into holes like ordinary glass, and pedestrians can still pass.
It is understood that the Zhangjiajie Grand Canyon Glass Bridge took nine years from project establishment to conceptual design, and then to the completion of construction, during which it passed nearly 100 safety tests such as anti-freezing, explosion-proof and earthquake-proof. Each deck glass can bear at least 60 tons of pressure, while the maximum tourist capacity of the glass bridge is only 800, and the pedestrian load can be ignored.
HaimDotan, the designer of the glass bridge, is an Israeli who designed the Israel Pavilion of the 2010 Shanghai World Expo. This time, he designed the suspension bridge, which is usually parallel, to extend to the sky, so that people on the bridge feel like they are above the sky; Handrails are also designed to be wavy, so that tourists can constantly change their directions when walking, effectively offsetting the resonance phenomenon caused by tourists walking at the same speed on the bridge.
In order to maintain the stability of the bridge, 70 glass balls were placed on the glass bridge, which objectively disrupted the pace of pedestrians and had the effect of restraining vibration. There are also four water tanks under the bridge, and the frequency of wave vibration generated by them is also different from that of the bridge body. When the bridge body resonates, it can offset the shaking of the bridge body.
The scenic spot said that the glass bridge is about to open to the outside world. In order to attract tourists, there will be the world’s highest bungee jumping and the world’s steepest zip line on the glass bridge. (End)
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