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Technical summary of Nanjing Dashengguan Yangtze River Bridge on Beijing Shanghai high speed railway rar

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2021-12-03
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Brief introduction: Nanjing Dashengguan Yangtze River Bridge of Beijing Shanghai high-speed railway is the crossing channel of Beijing Shanghai high-speed railway and Shanghai Hanrong railway across the Yangtze River in Nanjing. It also carries double line subway, and is the first six line railway bridge in the world. Nanjing Dashengguan Yangtze River Bridge is a control project of Beijing Shanghai high speed railway, with a total investment of 3.864 billion yuan. It was opened in early 2006 and completed in September 2010. The Dashengguan Yangtze River Bridge in Nanjing is characterized by large volume, large span, large load and high speed. The project scale of concrete and steel beam is large; 336m main span is the largest span of high-speed railway bridges in the world; The six line railway is the most designed high-speed railway bridge in the world; The design speed target value of the bridge is 300km / h, which is in the world advanced level. Nanjing Dashengguan Yangtze River Bridge adheres to independent innovation and has carried out the application of high-strength q420qe structural steel, structural analysis of daoyesterday integral deck, rail expansion regulator and beam end expansion device of long-span bridge, large tonnage spherical bearing, fatigue calculation load and damage coefficient, wind resistance performance, stress analysis and construction control of new main truss structure details, More than ten scientific research projects have been carried out, including steel beam manufacturing technology, complete construction technology of long-span continuous steel analysis arch bridge, long suspender vibration reduction and vibration suppression technology, and anti-collision facilities for main pier foundation. A number of invention patents with independent intellectual property rights have been obtained, and a number of innovative and new achievements that can be incorporated into standards and specifications and can be promoted are obtained, It has solved the key technical problems of high-speed railway long-span bridge construction scientifically, and effectively promoted the development of new bridge structure, new materials, new equipment and new technology in China.
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Nanjing Dashengguan Yangtze River Bridge on Beijing Shanghai high speed railway
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