While berthing facilities in
Japanese ports have been often designed with 30 to 50 years of design life
spans,
approximately 15 or more
facilities begin to be upgraded every year
before reaching their intended life spans. The principal objectives of upgrade
are to repair/strengthen aged structural members and components and/or to meet
the functional demands for present and future times. To understand the actual
conditions of upgrade projects and the cost for
maintenance and repair, 90
examples of the upgrade projects started after 1985 have been collected and
analysed. The analyses and discussion were focused on structural details and
life-cycle cost estimation. This paper introduces the recent examples of
upgrade on berthing facilities and the estimation of life-cycle cost regarding
maintenance and repair.