World's Widest Cable-Stayed Bridge Starts Construction

Foundation of the main pier of the Tuojiang River Bridge in Chengdu, Southwest China's Sichuan Province, was concreted on June 13.

About 17 kilometers from the Chengdu Tianfu International Airport, the bridge is a key section of the Chengdu east-west city axis passage.

With a main span of 455 meter, the 1,010-meter bridge is a double-cable plane and hybrid beam cable-stayed bridge with a single tower.

The standard section of the girder is 68 meters wide and the width of the functional area near the tower reaches 79 meters, making it the widest of its kind in the world.

Upon completion, the bridge is expected to be a landmark in Chengdu.

The project is surveyed, designed and to be built by China Railway Construction Bridge Engineering Bureau Group Co., Ltd..

As it will include concreting of the ultra-wide cross-section box girder concreting and pushing, engineering of pylons with complicated spatial structure and large-volume application of various types of high-performance concrete, builders will have a long way to go.

According to head of the project, the Building Information Modeling and a smart healthy monitoring system will be used during the entire construction period to improve quality, speed and traceability of the project and guarantee a safe and stable bridge structure for its operation.

The Chengdu east-west city axis passage is a main player of Chengdu's networking spatial structure and is expected to support construction of the Chengdu-Chongqing economic circle and urban integration development of Chengdu and Ziyang in central Sichuan Basin.

(Executive editor: Niu Yilin)