A review of long-span suspension bridges: a case of Akashi-Kaikyo and Runyang south bridges

In this article two long-span suspension bridges are described: the Akashi-Kaikyo Bridge in Japan and the Runyang South Bridge in China [1]. The Akashi Bridge is dated 1998. With its main span of 1991 m, it is the longest-span bridge ever built and the greatest bridge of the past Millennium. The Runyang Bridge (1490 m) was commenced in 2000 and is due for completion in 2005. Then it will be the third longest-span bridge ever built, and the greatest bridge in the beginning of the new Millennium. These bridges contain remarkable features of novel bridge construction technology, such as poly-aramid fibre pilot rope, prefabricated parallel wire strands and air injected cables. Earthquake resistance has often been an important design and construction parameter.Keywords: long-span suspension bridges, poly-ararnid fibre pilot rope, prefabricated parallel wire strands, dry air injected cables, earthquake resistanceBotswana Journal of Technology Vol 14(1) 2005: 43-5