The Baijusi Yangtze River Bridge, which connects Chongqing Dadukou and Banan District, has a main bridge of 1,384 meters and a main span of 660 meters. It is one of the world's largest public and rail dual-purpose steel truss cable-stayed bridges. The bridge will strive to close next month. After the project is completed, it will only take more than 10 minutes for citizens to drive from Banan Nanquan to Dadukou. “Baijusi Yangtze River Bridge is currently one of the largest spans of steel truss cable-stayed bridges in the world among public and rail dual-purpose steel truss bridges,” according to the design unit of Baijusi Yangtze River Bridge and Lin Tongpi International Engineering Consulting (China) Co., Ltd. Bridge Specialty Deputy Chief Engineer Deng Yu introduced that the steel truss girder of the main bridge of the bridge is divided into 93 sections. Each section is 15 meters long and weighs about 500 tons. It is bolted by 16 rods and 11,000 sets of high-strength bolts. A total of 1.1 million sets of high-strength bolts are used in the steel truss beams of the entire bridge. The total weight of the steel truss beams is about 44,300 tons, which exceeds the total steel consumption of the "Bird's Nest".

Deng Yu said that the steel truss girder cable-stayed bridge is used because the main span of the Baijusi Yangtze River Bridge is 660 meters. Suitable bridge types include cable-stayed bridges or suspension bridges. However, due to the complicated construction conditions around the bridge, it is necessary to cross the Qizixi Railway Station, the Qizixi Wharf and Dabin Road in turn on the side of the Dadukou. "If you choose a suspension bridge, you need to install anchors on the banks on both sides of the bridge tower to firmly tie the main cable of the bridge. However, there is not enough space at the Baijusi Yangtze River Bridge to arrange anchors." Deng Yu It is said that the steel truss girder cable-stayed bridge is finally determined, the truss structure is more compatible with the functional layout of the car and the track up and down, and the structural performance and the overall landscape of the bridge are also more advantageous.

The Baijusi Yangtze River Bridge also set a record, that is, it has the tallest main tower in the central city, with a height of 236 meters, equivalent to 84 floors. Deng Yu said that the primary purpose of bridge construction is to meet the traffic demand. Since the Baijusi Yangtze River Bridge spans the Yangtze River, sufficient space must be reserved under the bridge deck to ensure the unimpeded flow of the golden waterways of the Yangtze River. Therefore, the part of the main tower below the bridge deck is about 60 meters high; and the height of the main tower above the bridge deck is generally a quarter of the main span, which is about 170 meters.

Keywords: Engineering News, Bridge Engineering

The "difficulty" of the Baijusi Yangtze River Bridge lies in its construction across seven railway tracks. In order to match the railway operation schedule, the project department only has 2 hours of railway "empty window" for construction every day in the early morning. After deducting the preparation time before and after, the daily construction time is less than one and a half hours. Lin Tongli International (TYLI) is a world-renowned engineering consulting group, which is at the world's leading level in the field of bridges and transportation infrastructure. Lin Tongpi International China Co., Ltd. was established in Chongqing in 1994. It is the first batch of Chinese-foreign joint venture Class A design enterprises approved by the Chinese government. It is mainly engaged in the integrated design and consulting of urban infrastructure projects such as bridges, roads, tracks, ecological environment, and TOD. In 2009, Lin Tongpi International established its China headquarters in Chongqing.Editor/Xing Wentao