ABSTRACT
The concrete superstructures of open-type wharf are typically exposed to severely corrosive environments, so appropriate maintenance is needed to ensure the durability and safety of the wharves. To overcome such difficulties, a “replaceable” superstructure system for open-type wharves is proposed. It consists of precast concrete slabs with simple joints connected to pile head beams. When the structural performance of the slab is insufficient because of deterioration, it can easily be replaced with a new intact slab. In addition, the ability to temporarily remove the slab improves efficiency of inspection and repair of the underside of the superstructure. Design and construction methods for the replaceable superstructure system were developed through laboratory tests. This paper reports on a field trial for the replaceable superstructure system carried out at Fushiki-Toyama Port. The feasibility of construction and the efficiency of inspection work are evaluated in the trial.
