Ship Collision Protection for Sea-Crossing Long-Span Bridges
Author(s): |
Wonsuk Park
Hyun-Joong Kim Hyun-Moo Koh Jinkyo Choo |
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Medium: | conference paper |
Language(s): | English |
Conference: | 35th Annual Symposium of IABSE / 52nd Annual Symposium of IASS / 6th International Conference on Space Structures: Taller, Longer, Lighter - Meeting growing demand with limited resources, London, United Kingdom, September 2011 |
Published in: | IABSE-IASS 2011 London Symposium Report |
Year: | 2011 |
Abstract: |
The socio-economic importance and location of long-span bridges render them more sensitive to ship collision and imply careful consideration of the series of uncertainties involved. This paper proposes a ship collision risk assessment procedure of dolphin-protected long-span bridges considering various uncertainties. The events such as ship aberrancy, ship-bridge pier collision and collision-induced pier collapse are represented via probabilistic approaches. The vertical impact location and collision angle between the colliding ship and bridge pier are considered as risk- governing variables. Finally, the ship collision risk of dolphin-protected bridge is assessed using the developed ship-dolphin collision simulation program. A numerical simulation performed on Incheon Bridge shows that more reliable design can be obtained. |
Keywords: |
ship collision risk assessment dolphin protection impact angle impact height
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