Stainless steel observation standard Yichang high-speed railway stainless steel observation standard six piece set bent hook observation standard

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　　On January 4th, as the main tower steel piles began to be inserted and driven, the G3 Tongling Yangtze River Highway and Railway Bridge officially started construction, marking the start of the world's first double layered cable-stayed suspension cooperative system bridge invested and constructed by Tongling Comprehensive Transportation Investment Group Co., Ltd., designed by China Railway Major Bridge Institute, and constructed by China Railway Major Bridge Bureau.

　　The national bridge construction team has set a new record, and the world's first double layered cable-stayed suspension cooperative system bridge has begun construction

　　Considering the functional requirements and economic factors of the bridge, G3 Tongling Yangtze River Highway and Railway Bridge is designed as a cable-stayed suspension cooperative system bridge with a main span of 988 meters. ”Qiu Feng, the person in charge of the G3 Tongling project at China Railway Major Bridge Institute, introduced that the bridge starts from Huayuan Village, Chenyaohu Town, Tongling City, crosses the Yangtze River, passes through Yangshanji, and ends at Minzu Village, Datong Town, Tongling City. The total length of the route is 11.88 kilometers, and it has three functions of crossing the river: "expressway, intercity railway, and freight railway". The upper deck is arranged as a 6-lane highway with a designed speed of 100 kilometers per hour. The lower deck is arranged as a 4-line railway, with 2 lines being the Hechi intercity railway, designed for a speed of 250 kilometers per hour; The second line is the Tongling South to Jiangbei Port railway, which will later extend to Zongyang and connect Anqing, with a designed speed of 120 kilometers per hour.

　　The national bridge construction team has set a new record, and the world's first double layered cable-stayed suspension cooperative system bridge has begun construction

　　The construction of a double layered cable-stayed suspension cooperative system bridge is still among the best in the world, and the achievements of this bridge will accumulate valuable experience for the construction of similar bridges in China in the future, "said Liu Xingfu, the G3 Tongling project manager of China Railway Major Bridge Bureau. Cable stayed bridges and suspension bridges have their own strengths. Generally speaking, under the same conditions, cable-stayed bridges are less likely to deform under heavy pressure compared to suspension bridges, so the smoothness of vehicle passage is better; Suspension bridges have better span than cable-stayed bridges, making it easier to increase the span. The cable-stayed suspension cooperative system absorbs the characteristics of two types of structural bridges, and has particularly obvious advantages in kilometer level large-span and heavy-duty bridges. Compared with single structural bridge types, with the same materials and processes, the span is easier to expand, and the smoothness and safety of high-speed railway bridges are better.

　　The national bridge construction team has set a new record, and the world's first double layered cable-stayed suspension cooperative system bridge has begun construction

　　The G3 Tongling Yangtze River Public Railway Bridge is one of the planned cross river channels in the "Yangtze River Main Line Cross River Channel Layout Plan (2020-2035)". It is a key project to implement the national, Yangtze River Economic Belt, and Yangtze River Delta integrated development strategy, and is also a major infrastructure construction project in Anhui Province. The construction of the bridge is beneficial for improving the national and Anhui province's expressway network, enhancing the traffic capacity of regional river crossing channels, and playing a central role in connecting the Yangtze River Delta and Sichuan Chongqing Hubei Jiangxi, promoting the optimization and development of regional transportation, and improving the layout of river crossing channels. It is of great significance.

　　Stainless steel observation standard Yichang high-speed railway stainless steel observation standard six piece set bent hook observation standard

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