ABSTRACT
Corrosion is a major threat to the sustainability of cable bridge systems. Corrosion is probably the largest threat to exceedances of bridge owner’s maintenance budgets just as corrosion is a persistent threat to the sustainability of the cable-borne bridges. Many years of experiences with different generations of cable systems shows that water ingress is a problem both with respect to main cables, suspenders and cable stay lower anchorages. As the cable system as such is a primary non redundant part of the structural system, such durability issues may be costly to mitigate and may reduce the sustainability of the bridge as a whole. In order to handle proactively such threats, the paper presents cases and discusses the pros and cons of different monitoring approaches. Monitoring in this context may be inspection, testing or continuous automatic monitoring. Based on hand-on experiences, the paper reviews different monitoring approaches.
