How long is Jingzhou Bridge?

Jingzhou Yangtze River Highway Bridge. Jingzhou Yangtze River Bridge, built in Jingjiang reach of the middle reaches of the Yangtze River, is connected with National Highway 3 18, Yihuang Expressway, Xiang Jing Expressway and Jingchang Expressway, and is the throat project for 207 national highway to cross the long river. The bridge consists of nine parts, namely, North Shore Approach Bridge, Jingzhou Dike Bridge, North Shore Beach Bridge, North Branch Navigation Bridge, Sanbazhou Bridge, South Branch Navigation Bridge, South Shore Beach Bridge, Jingnan Main Dike Bridge and South Bank Approach Bridge, with a total length of 4,397.6 meters, a deck width of 24.5 meters, two-way four lanes and a daily traffic capacity of more than 20,000 vehicles. The bridge has complex structure and high technology content. The bridge structure covers various forms of long-span bridges at home and abroad, and it is praised as "China Bridge Construction Museum" by domestic bridge experts. Beicha Navigation Bridge is a PC cable-stayed bridge with a main span of 500 meters, which ranks second in the world and first in Asia. The main span150m and the continuous length1100m of sanbazhou continuous beam bridge are the longest continuous beam bridges in China at present.

In the past, more than 5,000 cars crossed the Yangtze River every day in Jingzhou, and there was a long snake array all day. Due to the abnormal weather, passengers on the 207 national highway often stay in Jingzhou. The completion and opening to traffic of Jingzhou Yangtze River Bridge has declared that the whole line of 207 national highway is connected, connecting Hunan and Hubei provinces, and formed a north-south highway traffic artery in the Central Plains, which will play an important role in promoting the economic development of the two lakes and plains, promoting the urban construction of Jingzhou and the flood control and flood fighting of the Yangtze River.

Project overview

Jingzhou Yangtze River Highway Bridge, located in Jingzhou City, Hubei Province, is a super-large bridge across the Yangtze River in 207 national highway. The river at the bridge site is about 3000 m wide, and there is a sandbar in the river called Sanbazhou. Sanbazhou divides the bridge site into two branches, the north branch is about 700 m wide, the south branch is about 450 m wide, and Sanbazhou is about 1 100m long. The total length of the bridge is 4 177. The exposed stratum on the surface of the bridge site area is Quaternary soft accumulation sandy pebble layer, and the underlying bedrock is mudstone and siltstone. The buried depth at the top of the bedrock is 1 16 ~ 128 m, the design driving speed is 100 km/h, and the design load is: steam 2 exceeds 20, and suspension is 2/kloc. Bridge deck width: the clear width of the carriageway is 2 1.5m, and the total width of the bridge deck is 24.5m (27.0m for the cable-stayed bridge), with no non-motor vehicle lanes and sidewalks. The bridge is composed of nine parts, from north to south: North Shore Bridge: 926 meters long.

North Bank Approach Bridge (1) 22 m ×20 m prestressed concrete simply supported hollow slab.

(2) 93+ 150+ 93 (m) prestressed concrete continuous beam spans Jingjiang levee bridge.

(3) The 5 m ×30 m prestressed concrete simply supported T-beam of the North Shore Beach Bridge. Main bridge: 2557 meters long.

(4) 200+ 500+ 200 (m) prestressed concrete cable-stayed bridge with navigation hole at the north branch.

(5) Sanbazhou Bridge100+6×150+100 (m) prestressed concrete continuous beam.

(6) Nancha Navigation Hole Bridge 160+ 300+ 97 (m) prestressed concrete cable-stayed bridge. Nan 'an Bridge: 270 meters long.

(7) 8 m ×30 m prestressed concrete simply supported T-beam of Nan 'antan Bridge.

(8) 50+ 80+ 50 (m) prestressed concrete continuous beam spans Jingnan main dike bridge.

(9) The 9 m ×30 m prestressed concrete simply supported T-beam of the south bank approach bridge.