Design and construction of super-long span bridges in China: Review and future perspectives
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REVIEW
Design and construction of super-long span bridges in China: Review and future perspectives Wei HUANGa, Minshan PEIb, Xiaodong LIUb, Ya WEIc* a
Intelligent Transportation System Research Center, Southeast University, Nanjing 211189, China China Communications Construction Company Ltd., Beijing 100088, China c Department of Civil Engineering, Tsinghua University, Beijing 100084, China b
*
Corresponding author. E-mail: [email protected]
© Higher Education Press 2020
ABSTRACT Super-long span bridges demand high design requirements and involve many difficulties when constructed, which is an important indicator to reflect the bridge technical level of a country. Over the past three decades, a large percentage of the new long-span bridges around the world were built in China, and thus, abundant technological innovations and experience have been accumulated during the design and construction. This paper aims to review and summarize the design and construction practices of the superstructure, the substructure, and the steel deck paving of the long-span bridges during the past decades as well as the current operation status of the existing long-span bridges in China. A future perspective was given on the developing trend of high-speed railway bridge, bridge over deep-sea, health monitoring and maintenance, intellectualization, standard system, and information technology, which is expected to guide the development direction for the construction of future super long-span bridges and promote China to become a strong bridge construction country. KEYWORDS
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long-span bridges, steel box girder, design technology, construction technology, review and future perspectives
Introduction
Bridge is an important part of transportation infrastructure, which can provide a solid support for the country’s economic and social development. China has been a big bridge construction country since the ancient times. In recent decades, it has maintained an average annual growth rate of 30000 bridges, which has greatly promoted the development of China’s transportation industry. The superlong span bridge, an important indicator reflecting the technical level of building bridge of a country, requires high design criteria and is difficult to be constructed. The construction of the super-long span bridge started relatively late in China. Until the 1990s, with the urgent needs of China’s economic development, various types of bridges across rivers, mountains, and trans-oceans were built. For example, Nanpu Bridge, which was built in 1991, has a main span of 423 m, creating a precedent for
Article history: Received Nov 19, 2019; Accepted Jan 9, 2020
the construction of long-span cable-stayed bridges of more than 400 m in China. Yangpu Bridge, built in 1993, spans more than 600 m and became the longest cable-stayed bridge in the world at that time. Meanwhile, China’s first modern suspension bridge-Shantou Bay Bridge (main span of 452 m) and the first steel box girder suspension bridgeJiangyin Yangtze River Bridge (span of 1386 m), were com
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