SONGSU BRIDGE, SOUTH KOREA, WIDENING OF AN EXISTING MULTI-SPAN TRUSS BRIDGE, CONCEPT AND DESIGN

As traffic densities and vehicle weights rise, many key road bridges in the most heavily congested cities are found to be in need of widening and strengthening. The technical challenges for designers and contractors working on these schemes include maintaining traffic flow through construction, building onto existing structures that may already be heavily loaded and planning of erection sequences to achieve the required state of stress and profile in the widened structure. This paper describes the widening of Songsu Bridge, an example of where these criteria are major factors influencing the design solution. Songsu Bridge is one of 17 highway crossings of the Han River in Seoul, the capital of South Korea. An additional three highway bridges are presently under construction and four, including Songsu Bridge, are now being widened. With just two exceptions all these bridges have been built since the end of the Korean War. The Han River is one of the largest rivers in the Korean peninsular and drains a large area of the country from the mountainous ranges in the North East Province of Kangwon-Do. Dams upstream of the bridge site regulate the river flow through the city for nine months of the year at a fairly constant level of +3.00m. During flood conditions, the river flow can increase and the maximum water level rises typically up to +12.00m. For the covering abstract see IRRD E104152.

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  • Corporate Authors:

    Thomas Telford Limited

    London,   United Kingdom 
  • Publication Date: 1999

Language

  • English

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Filing Info

  • Accession Number: 00788368
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • ISBN: 0-7277-2841-5
  • Files: ITRD
  • Created Date: Mar 3 2000 12:00AM