related data
Name of Bridge: Chongqing Wanzhou Yangtze River Highway Bridge
Bridge type: reinforced concrete arch bridge
Span: 420 meters
Design unit: Highway Planning, Survey and Design Institute of Sichuan Provincial Communications Department.
Construction unit: Sichuan Road and Bridge Construction Group Co., Ltd. ..
Concrete dosage: 48073m3
Steel consumption: 5944 tons
Cost: 65.438+0.68 billion yuan (excluding the approach road of 65.438+0.33 billion yuan)
Completion date:1June 20, 997
work progress
1997, Wanxian Yangtze River Highway Bridge, a rigid skeleton reinforced concrete arch bridge with a length of 856 meters and a main span of 420 meters, was born in Wanzhou with a long history. Crossing the rolling Yangtze River and descending to Xiongguan of the Three Gorges, the goddess in the distance is hazy and charming, forming a magnificent landscape in which the sky, water, mountains, bridges and cities complement each other. This bridge broke the record of the largest span reinforced concrete arch bridge (390 meters) built in the world at that time, and became the largest bridge of its kind in the world, winning the first prize of national scientific and technological progress and the second Zhan Tianyou Civil Engineering Award in China; A group of backbones engaged in bridge design, construction and scientific research were commended.
Behind the grand prize is a group of people of insight who have gone through six years of bumpy preliminary work for the bridge construction, made unknown contributions and created valuable experience in the preliminary work. As a participant and organizer of the preliminary work of this bridge, the author reproduces this historical reason with detailed information and personal experience. I hope that history will not be forgotten, so that future generations will not forget their predecessors, face the future and push people's transportation career to a higher peak with more full passion.
The leading group of the Communications Department sized up the situation and decided on the plan, and the Provincial Planning Commission approved the preliminary feasibility demonstration and set the tone.
Since the founding of the People's Republic of China, people in poverty-stricken mountainous areas in Wanxian County have been dreaming of building the Yangtze River Highway Bridge for more than 30 years. Successive leaders of Sichuan Province and the Communications Department have also written to the country many times, demanding the construction of this bridge. 1983 The Provincial Planning Commission submitted the Request for Instructions on Building Wanxian Yangtze River Bridge to the State Planning Commission. However, due to various reasons, the Three Gorges Water Control Project was ups and downs, and the preliminary work of the bridge was once interrupted.
On August 20th, 1987, the leading group headed by Guo Hongxi, director of Sichuan Provincial Communications Department, held a meeting to study the traffic development plan during the Eighth Five-Year Plan period. According to the information and opportunity that the country has restarted the preliminary work of the Three Gorges Water Conservancy Project and the water level elevation has been initially determined, the construction plan of Wanxian Highway Yangtze River Bridge is put forward again to speed up the feasibility study of the preliminary project. Then, Wanxian Administrative Office, Planning Commission and Transportation Bureau sent the Request for Instructions on Feasibility Study and Demonstration of Wanxian Yangtze River Bridge to the provincial government, Planning Commission and Transportation Department. Wen Xin, then Party Secretary of the Provincial Planning Commission, and He Xiancong, then deputy director in charge of the plan, gave instructions and agreed to organize the demonstration.
1987165438+1On October 26th, the Provincial Planning Commission and the Communications Department jointly held the preliminary feasibility demonstration meeting of Wanxian Yangtze River Highway Bridge. Feng Tianjue, Ai and other senior engineers in the province, experts and professors from domestic universities and design and construction units, and more than 60 representatives from the state, provincial, prefectural and municipal governments and their relevant departments were invited to participate in the demonstration. After field investigation, repeated argumentation and comparison, the recommended bridge location and approach roads at both ends are preliminarily determined. Approved by the Communications Department and the Provincial Economic Planning Commission, the Provincial Economic Planning Commission issued the Minutes of the Demonstration Meeting on the Preliminary Feasibility Study of Wanxian Yangtze River Bridge on 1987 12 16. This summary sets the tone for the feasibility of Wanxian Highway Yangtze River Bridge and points out the direction for further preparation.
Important significance
The bridge is a concrete filled steel tubular deck arch bridge with rigid skeleton, with a length of 8 14m, a width of 23m, a clear distance of 420m and a height of 140m from the river surface. Crossing the river with a single hole, there is no water under the foundation, and the span ranks first among similar bridges in the world. The main arch ring is a reinforced concrete box section, which consists of steel pipes and rigid skeleton. It is constructed by cable hoisting and cantilever buckling. The bridge is 24 meters wide and designed according to the four lanes of the main highway. With the completion of this bridge, the level of arch bridge construction in China is in the leading position in the world.
1997 completion of Wanxian Yangtze River Bridge in Chongqing. The bridge is located in Huangniukong, Wanzhou District (formerly Wanxian City), and it is a super-large arch bridge across Xiajiang natural barrier on Shanghai-Chengdu Expressway. The bridge spans the Yangtze River with a total length of 856.12m. The main arch ring is a box-shaped concrete structure with a rigid skeleton of concrete filled steel tube, with a main span of 420 meters and a bridge deck width of 24 meters. It is the largest two-way four-lane concrete arch bridge in the world. The research was completed by Professor Gu Anbang from the School of Civil Engineering and Architecture of Chongqing Jiaotong University, and the research results of design and construction technology won the first prize of National Science and Technology Progress Award.
At the National Science and Technology Awards Conference held on February 9th, 2000 10, more than10 bridge experts from Sichuan Provincial Communications Department Highway Planning, Survey and Design Institute, Chongqing Jiaotong University, Sichuan Road and Bridge Group and other units spent seven years developing the scientific research project "Research on Design and Construction Technology of Wanxian Yangtze River Bridge with Extra Long Span (420m)" and won the first prize of national scientific and technological progress. This is the highest scientific research honor obtained by Sichuan transportation industry since the founding of the People's Republic of China.
It is understood that Wanxian Yangtze River Bridge was completed and opened to traffic in June, 1997, with a span of 420 meters over the Kerk Bridge in the former Yugoslavia, making it the largest reinforced concrete arch bridge in the world.
To this end, the State General Post Office issued 1 special stamps in July 2000. After the publication of the technical papers of the bridge, it has attracted wide attention from international academic circles, and many scientific research achievements have been widely promoted and applied in the construction of long-span bridges at home and abroad.
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