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Great demand and great challenge

Chinese Major Bridges under Construction for Improving Traffic Infrastructure Nationwide

 Great demand and great challenge
Author(s): ,
Presented at IABSE Symposium: Improving Infrastructure Worldwide, Weimar, Germany, 19-21 September 2007, published in , pp. 6-9
DOI: 10.2749/222137807796119528
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Under the background of high annual growth rates of GDP, China has experienced with the evergrowing demand in improving traffic infrastructure nationwide for about three decades, which results in i...
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Bibliographic Details

Author(s):

Medium: conference paper
Language(s): English
Conference: IABSE Symposium: Improving Infrastructure Worldwide, Weimar, Germany, 19-21 September 2007
Published in:
Page(s): 6-9 Total no. of pages: 18
Page(s): 6-9
Total no. of pages: 18
Year: 2007
DOI: 10.2749/222137807796119528
Abstract:

Under the background of high annual growth rates of GDP, China has experienced with the evergrowing demand in improving traffic infrastructure nationwide for about three decades, which results in intensive investment in traffic infrastructure development, in particular highway transportation construction. Two ground plans, the National Trunk Highway System and the National Expressway Network, have been launched successively, and thousands of highway bridges have been built for each year. In order to meet with the great demand in highway bridge development, Chinese bridge community is facing several challenges in the design and analysis of major bridges, especially of super long-span bridges. Aerodynamic challenge of suspension bridges was introduced by three typical examples including a single-box-girder with a central stabilizer, a twin-box-girder and a trial design with the combination of stabilizers and central slotted decks. Bridging capacity challenge was explained by three cable-stayed bridges with about 1000 m main span and a record-breaking span-length arch bridge. The other technical challenge was focused on the rational design and analysis of a double main span suspension bridge and a twin parallel deck cable-stayed bridge.

Keywords:
traffic infrastructure development major bridge construction aerodynamic challenge bridging capacity challenge double main span bridge twin parallel deck bridge

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