Rongjiang Bridge Project is located in the Rongjiang reach of Didu Town, Rongcheng District, Jieyang City, Guangdong Province and Guanbu Town, Chaoyang District, Shantou City. It is one of the key and difficult control projects in xiamen-shenzhen railway, with a design length of 78+0m. 10000.000605 The span of this super-large bridge with flexible arch structure of steel truss beam ranks first in the world among similar bridges.
After more than four years of hard construction, the main project of Rongjiang Bridge on Xiamen-Shenzhen Passenger Dedicated Line, the world's largest span flexible arch bridge, was completed on February 20th, 20 13.
Rongjiang Bridge is a key control project for the construction of xiamen-shenzhen railway Passenger Dedicated Line and a landmark project for the construction of railway bridges in China. The bridge is located in Jieyang City, Guangdong Province, with a total length of nearly 8 kilometers. It consists of a main bridge and a north-south approach bridge. The pier is 42.5m high, and the maximum depth of pier foundation pile is108m.
The main bridge of the bridge adopts the new technology of steel truss flexible arch, with two spans of 220 meters in succession, which is the largest span of similar bridges in the world at present. The total weight of the main bridge steel truss beam is about 16000 tons, the maximum weight of a single steel beam is about 60 tons, and the clear navigation height of the main bridge is 38 meters. The engineering technical difficulty is rare for similar bridge construction in China.
architectural feature
Rongjiang Bridge is a key control project in xiamen-shenzhen railway. Its main span is (110+220+220+110) meters. It is the largest span of its kind in the world at present, and the height from the river surface to the vault at high tide is 103.5 meters. Because of its long span, high bridge height and close to the estuary, it is greatly affected by tides and typhoons. The bridge has eight characteristics of "high, large, difficult, new, deep, urgent, dangerous and heavy", with complex technology, high technical standards and great construction difficulty. The bridge is beautiful in shape and novel in technology. The main span is planned to be hoisted as a whole, and the weight of the bridge will reach a record of about 7000 tons. According to Chen Yong, the two outstanding features of the bridge are: first, "orthogonal welded integral nodes"; The second is the special-shaped steel bridge deck. Its construction technology and technical difficulty are rare in China.
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