The bridge was jointly designed by China Railway Second Hospital Engineering Group Co., Ltd. and China Railway Bridge Survey and Design Institute Co., Ltd., and undertaken by China Railway Bridge Bureau Group. The structural steel truss girder on the upper part of the bridge is jointly manufactured by Zhongtieshan Bridge Group Co., Ltd. and Wuqiao Heavy Industry Group Co., Ltd., with a total investment of about 2.40 billion yuan.
In March 2009, the proposal of Chongqing-Guiyang railway capacity expansion and reconstruction project was approved, and the route direction was determined.
On June 5438+ 10, 2009, the capacity expansion and transformation of Chongqing-Guizhou Railway was included in the "New Start of Western Development 18 Key Project".
On March 2, 20 10, the Ministry of Railways and Chongqing signed the minutes of the newly-built Baishatuo Yangtze River Bridge in Chongqing, and determined that the bridge was a six-line scale. After the completion of the new Baishatuo Yangtze River Bridge, the original Baishatuo Yangtze River Bridge was demolished. The cost of adjusting Line 4 to Line 6 and the demolition cost of the existing Baishatuo Bridge shall be borne by Chongqing Municipality.
20 10 12. Reply to the feasibility study report of Chongqing-Guiyang railway capacity expansion and reconstruction project.
On September 20 10, the design institute completed the preliminary design of Xinbaishatuo Yangtze River Bridge on Chongqing-Guizhou Railway, and the Engineering Design Appraisal Center of the Ministry of Railways conducted a preliminary design review of the design documents.
On February 20 10, the design institute completed the preliminary design work of this bridge reconstruction.
20 10, 2065 438+00, the revised preliminary design of Baishatuo Yangtze River Bridge on Chongqing-Guizhou line was submitted to the Ministry for review, and the revised preliminary design proposed two main trusses, two cable plane oblique trusses and two main trusses, two cable plane normal trusses.
201165438+1On October 28th, the preliminary design review meeting of Baishatuo Yangtze River Bridge was held in Beijing. Experts put forward to further optimize the spacing between the second and third lines, and agreed to the structural scheme of two main trusses and two cable planes.
From February to June of 20 1 1 year, according to experts' review opinions, the design institute worked with double main trusses, double cable planes and rectangular sections, and basically completed the construction drawing design of the main bridge (main bridge, pier and tower).
20 1 1 to 10, Baishatuo Yangtze River Bridge along the whole line of Chongqing and Guizhou, and safety assessment was carried out.
20 12, 1 June, the preliminary design of baishatuo Yangtze river bridge was revised according to the overall deployment and technical conditions.
201February, Chongqing Municipal People's Government wrote to the Ministry of Railways in combination with the planning of Xiaonanhai Hub, requesting the Ministry of Railways to organize the preliminary design of Xinbaishatuo Yangtze River Bridge according to the water level of 197 m, and to study the design scheme of Xinbaishatuo Yangtze River Bridge on Chongqing-Guizhou Railway under the operation conditions of Xiaonanhai Hub 197m.
201February, Chongqing Municipal People's Government wrote to the Ministry of Railways in combination with the planning of Xiaonanhai Hub, requesting the Ministry of Railways to organize the preliminary design of Xinbaishatuo Yangtze River Bridge according to the water level of 197 m, and to study the design scheme of Xinbaishatuo Yangtze River Bridge on Chongqing-Guizhou Railway under the operation conditions of Xiaonanhai Hub 197m.
On March 12 and 1 day, the Engineering Design Appraisal Center of the Ministry of Railways hosted an expert review meeting on "Preliminary Design Modification of Baishatuo Yangtze River Bridge on Chongqing-Guizhou Railway" to study the bridge design scheme under the condition that the normal storage level of Xiaonanhai Water Control Project on Chongqing Yangtze River is adjusted from 196m to 197m (Wusong elevation).
20 12 In the first ten days of March, the designer revised the design documents according to the opinions and suggestions of experts, and submitted them to the appraisal center of the Ministry for review.
2065438+September 2002, the tender information of Chongqing-Guizhou railway capacity expansion and reconstruction project was announced.
2012 June 5438+00, all kinds of tenders are being carried out steadily, and the capacity expansion and reconstruction project of Chongqing-Guizhou railway will be officially started on June 1 10.
20 13 0 10, the new baishatuo Yangtze river bridge, a control project of Chongqing-Guizhou railway, officially started.
In May 20 13, Xinbaishatuo Yangtze River Bridge on Chongqing-Guizhou Railway completed underwater cleaning and blasting, and began to set up drilling platforms to prepare for cofferdam sinking.
On July 20 14, the foundation construction of the main bridge of Xinbaishatuo Yangtze River Bridge was completed.
In September 20 14, the first steel beam member of the new Baisha Tuo Yangtze River Bridge was erected.