In order to replace the bearings, all piers had to be restructured to create a larger surface area that would support the jacking device. As the bridge is a major traffic route that carries the A1139 Frank Perkins Parkway over the River Nene, construction work was carried out alongside live traffic flowing above.
For more information about this project, click here to read our case study.
This project was also featured in the March 2019 issue of Concrete Magazine. You can download and read the article here.
Retaining the character and Y-shaped geometry of the bridge piers was an important consideration for the scheme. The new concrete surface had to resemble the existing multifaceted geometry and architectural function of the piers.
I involved PERI very early in the planning of this scheme. PERI offered a complete design service and from their previous experience proposed the CNC cleat boxes to form the complex shapes required.
PERI have provided technical representation at meetings and have been very supportive in getting this scheme to fruition. The ability to take the scheme designer’s 3D models and incorporate this into the formwork design has been invaluable in delivering the piers to the shape and function required.
The drawings and instructions provided by PERI have made construction by the team on site swift and to a high standard.