The world's most amazing bridge, let tens of thousands of tons of concrete floating in the water, how to do it?

The world's most amazing bridge, let tens of thousands of tons of concrete floating in the water, how to do it?
Edit date: 2018.12.17
Editor: guangzhou hengqiao Marine engineering co., LTD

    Many years ago, due to the limited level of human science and technology, so we often see wooden pontoon Bridges in the river, they shake with the waves, although not as strong as the stone pier bridge, but also can provide a lot of convenience to people, but you have seen the world's longest cement pontoon bridge! Speaking of pontoon bridge, I believe you have heard of the longest cement pontoon bridge in the world -- SR520, which was built by Washington, USA. As part of the Washington interstate, the pontoon bridge is 2,350 meters long, supports 77 large air tanks, is anchored by 58 massive 450-ton anchors and is connected to 3-inch thick steel cables. That's why it's floating 10,000 tons of concrete. I have to say, this is a great American project against the sky, but also a miracle.

     It is the capital of America Washington lake bridge, the total length of 2350 meters, is a part of interstate 520 that was started in 2016, adopted the tens of thousands of tons of concrete and steel, but it is shocking, the bridge is not a bridge pier, just lie directly on the lake, like a fragile grass is very magical, don't know the thought and there is a flood, it is a delicate, built in the day was named as the world's longest bridge, bridge design for double line channel, every day three route for cars, bicycles and pedestrians pass and at the bottom of the rotary wall has 77 large floating box, With 58 iron anchors firmly attached to the water, it is stable enough to withstand winds of up to 140km/h.

     Some people may ask why a bridge cannot be built here directly, in fact, because the silt in the lake is too soft, some places are even as deep as 67 meters, the construction of cable-stayed bridge will waste a lot of manpower and material resources, so the local government adopted the design of pontoon bridge! Since opening, it is said that there are 130000 cars a day from the past, but a lot of people come here to enjoy the beauty of the lake and the distant high-rise buildings, when people driving on it, as the bridge, you will be surrounded by green water, the feeling of the breeze let a person crazy how, see here, you are also attracted by this beautiful bridge?