The design of ship-to-shore linkspans for ro-ro terminals

This paper is a broad introduction to the issues facing designers of ship-to-shore linkspans for roll-on-roll-off ferry terminals, including mechanically lifted, pontoon, semi-submersible and integral tank types, outlining some key problems associated with each type. It discusses the development of design guidance since the 1994 ramsgate walkway collapse, leading to the publication of BS 6349-8 in the UK in 2007 with guidance on lifting equipment, transition geometry and loadings. Ship damage and wave action on linkspans are also discussed.