Galecopper Bridge cable replacement – managing structural safety

This paper discusses the management of structural safety during the cable replacement of the Galecopper Bridge, Utrecht, the Netherlands. The existing cables are replaced while keeping the bridge open to traffic. Keeping the bridge safe during this operation is one of the key challenges. This paper highlights how the structural safety of the existing structure and of the cable replacement design is managed. The role of the design engineer is emphasized, detailing their responsibilities in ensuring structural safety. Specific examples of design modifications include the integration of the Freyssinet cable system, the adoption of an alternative detensioning method, the design and impact of temporary access provisions and continuous geometric surveying to monitor the structural safety of critical components along every step of the cable replacement process.