Aerial China：Zhejiang Shaoxing Jiashao Bridge浙江紹興嘉紹大橋

Jiashao Bridge is a river crossing passage connecting Haining City, Jiaxing City and Shangyu District, Shaoxing City in Zhejiang Province, China. It is located in Hangzhou Bay, Zhejiang Province, China.
The construction of Jiashao Bridge started on December 14, 2008, the whole bridge was completed on February 3, 2013, and it was opened to traffic at 0:00 on July 19, 2013.
Jiashao Bridge starts from Guzhu hub in the south, crosses Hangzhou Bay and ends at Nanhu hub in the north, with a total length of 10.137 kilometers; the bridge deck is a two-way eight-lane expressway with a design speed of 100 kilometers per hour; the project investment is 6.28 billion yuan.
building structure
The main channel bridge of Jiashao Bridge adopts the 6-tower single-column cable-stayed bridge scheme with the highest technical content, which makes the main bridge 2,680 meters long, with 5 main navigation holes, and ranks first in the world in the number of cable towers and the length of the main bridge. The bridge adopts the standard of two-way eight-lane expressway, and the total width of the main bridge is 55.6 meters (including the busso area). A large number of large-diameter bored piles are used for the approach bridges in the water area, and the caps on the piers are cancelled.
The main channel bridge of Jiashao Bridge adopts a single-column, four-cable plane and six-tower cable-stayed steel box girder bridge structure. An expansion joint is set in the middle of the main bridge span, and the main beam at the expansion joint adopts a rigid hinge structure; the north auxiliary channel bridge adopts a variable-section continuous rigid frame. Bridge; the approach bridges in the south and north water areas are prestressed concrete continuous rigid-frame bridges with equal span and cross-section, the lower structure adopts the form of single pile and single column, and the foundation adopts large-diameter bored piles; Prestressed concrete continuous box girder.
Design Parameters
The Jiashao Bridge has a total length of 10.137 kilometers. The main channel bridge adopts (70+200+5×428+200+70) meter cable-stayed steel box girder bridge; 70) m.
The main technical standards of Jiashao Bridge are as follows: Highway grade: two-way eight-lane expressway, bridge width is 40.5 meters (excluding the cable area); design speed: 100 km/h; maximum longitudinal slope: ≤4%; bridge deck Cross slope: 2%; Vehicle load level: Highway-I; Design base period: 100 years; Resistant to magnitude VI earthquakes.
The main project quantities of Jiashao Bridge are as follows: 975,498 cubic meters of concrete, 114,308 tons of steel bars, 130,902 tons of steel, 16,893.1 tons of steel strands, 3,698.5 tons of parallel steel wires, 546,292 square meters of concrete coating, 693,538 square meters of steel structure coating, and steel bridge deck. 101,665 square meters of pavement, 282,101 square meters of concrete bridge deck, 52 expansion joints, 4 sets of inspection vehicles, and 26 sets of dehumidification systems.
The number of main structural projects of Jiashao Bridge is: 150 bored piles with a diameter of 3.8 meters, 228 bored piles with a diameter of 2.5 meters, 322 bored piles with a diameter of 2.0 meters, 92 approach bridge caps in the land area, and 10 main channel bridge caps. There are 18 bearing platforms for the north auxiliary channel bridge, 150 single-column piers for the approach bridge in the water area, 88 double-column piers for the approach bridge in the land area, 2878 sections of prefabricated prestressed concrete box girders for the 70-meter section of the approach bridge in the water area on the north bank, There are 300 cast-in-place box girders of 70 meters for the approach bridge in the water area, 496 cast-in-situ box girders for the north auxiliary channel bridge and cross embankment, 40 cast-in-place box girders for the support in the land area, 6 main towers, 60 steel anchor boxes for the main tower, and 60 main tower steel anchor boxes. The bridge has 374 steel box girders, 576 stay cables, and 40,548 meters of steel guardrails.

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