This paper introduces and summarizes damage cases of cable for cable supported bridges. The damage cases of similar bridge types may become an important database in the maintenance and management of cable supported bridges in the future. It will also be used as a base material for improving and developing the technology of inspection and maintenance of cable supported bridges.

This paper introduces and summarizes damage cases of cable for cable supported bridges. The damage cases of similar bridge types may become an important database in the maintenance and management of cable supported bridges in the future. It will also be used as a base material for improving and developing the technology of inspection and maintenance of cable supported bridges.

A study performs estimation of fatigue safety that is considering cross-sectional loss of cable by applying foreign regulatory review. Because of steel cable-stayed bridge cable`s corrosion which is occurred after construction completion more than 30 years. Analysis result, all cable members secure fatigue safety considering cross-sectional loss of cable.

This study on the maintenance of axial force of the cable band bolts in suspension bridge. The axial force on the cable band is reduced as suspension bridge of increases service period. In is a summary of the field measurement results and review of cause.

The suspension bridge main cable requires regular maintenance works to control the axial forces of the cable band bolts. A axial forces of a suspension bridge cable band occur reduction phenomenon because of the creep behavior of cable wire, the bolts relaxation, load fluctuation and cable rearrangements with the lapse of time.

The suspension bridge’s main cable requires regular checks for the decrease on the axial forces of the cable band bolts. In this paper, basic concepts are presented for the approach on the management of cable band bolts in suspension bridges. In additions, the reasons for the decrease of axial forces are investigated with various aspects and some measurement methods for the axial forces are presented as well.

The investigation has been carried out for the design criteria of ship impact protection which installed for the off-shore bridge in Iksan regional Construction and Management Administration. From these investigation, it has been found out that various design criteria are applied for the off-shore bridges in Korea. However some bridges do not have clear design criteria on the fender for bridges.