my country's largest span multifunctional cable bridge main body is completed

Correspondent Ding Di Liu Chao

On July 25, with the last section of the steel box beams with 113 tons of steel box beams, it was precisely lifted, and the largest span multifunctional cable bridge in my country, the largest span multi -function cable bridge of China, designed and built by the 18th Bureau of China Railway. The Honglian Bridge of the trade zone successfully realized the main bridge, marking the completion of the main project construction of the bridge.

The Honglian Bridge, a key transportation project in the Guangdong -Hong Kong -Macao Greater Bay Area, has a total length of 1772 meters, using a dual -tower and double cable surface mixed beam. In addition to satisfying vehicles and personnel, the Honglian Bridge also undertakes high -pressure cables, gas, communications and water pipelines to cross the river. The scale is the best in the same type of multi -functional bridge in China, and the project is extremely arduous.

It is understood that due to the cold wave, typhoon and construction area of ​​the unstable flow of water flow, the construction of the bridge is extremely difficult and the safety risk is extremely high. During the construction process, the project team of the 18th Bureau of China Railway carefully studied the construction plan, repeatedly deduced the lifting process, and a lifting of the water level and no air time period. At the same time, the steel box beam line was monitored throughout Under the premise, the steel box beam is successfully completed, and the bridge is accurate. The Fourth Court of the Design Unit was designed through an innovative structure. For the first time, a semi -open -mouth separation dual -box section main beam structure was adopted in the large span bridge in a strong typhoon area; Double -box cross -section main beam main beams of stagnation bridge.

After the completion of Honglian Bridge at the end of 2022, the driving time connected to the Longxue Island International Shipping Logistics Trading Center of the Nansha Free Trade Zone will be shortened from the current 45 minutes to 10 minutes. Driving Guangdong to form an efficient and convenient modern transportation system to play an important role.

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