Liebherr mobile crane installs inflatable mountains on Paris’ Pont-Neuf bridge

A Liebherr mobile crane was generated to carry out the fragile lifting task

Being the earliest bridge in Paris, the Pont-Neuf has actually restricted area for work and invites a great deal of day-to-day visitors. Load-distribution plates minimized ground pressure, while security and traffic management procedures made sure the operation might be performed securely.

Initially, the group intended on utilizing a bigger Liebherr mobile crane. Since of the tight conditions, the Liebherr MK 88-4.1 was moved in for the repair work. Its 45-metre-long trolley jib reached all the harmed locations of the structure, while the four-axle style allowed simple moving from one side of the bridge to the other, where there was likewise storm damage. The brief set-up time and compact outrigger system more assisted in the operation.

The crane taxi included a fringe benefit of having the ability to move at working height. It supplied the crane operator with a clear view of the around 18-metre-high structure and the rope gain access to professionals. The boom-mounted spotlights made sure ideal lighting of the workspace throughout night-time operations.

Integrating hardware with art

The repair was performed over 4 graveyard shift. Harmed material areas weighing in between 200 and 400 kgs were raised and reattached in partnership with rope gain access to service technicians. As the building and construction website lay in a wind passage along the River Seine, climate condition were continually kept track of. Interaction in between the crane operator and the rope gain access to specialists happened constantly through radio.

Before work started, the group carried out website assessments, load estimations, and crash analyses of the surrounding structures. A 360-degree test consequently validated the prepared crane positioning.

For Ponticelli, the job was even more than a traditional lifting operation. “We are proud to have been part of this work of art. To quote JR: ‘The installation of the artwork is part of the artwork’ — and so is the crane,” discusses Louis-Arthur de Quatrebarbes. “The visually striking deployment of the MK crane created a magical moment.”

With its effective implementation on the Pont-Neuf, the Liebherr MK 88-4.1 mobile building crane showed its strengths in requiring urban jobs. Where heritage preservation, restricted areas, and a high level of accuracy come together, the mobile building and construction crane uses the best mix of reach, density, and versatility.