Pier Collision Protection Works
|Brief Description:||Protection of piers against ship strike|
This project was commissioned by the Tay Road Bridge Joint Board to ensure the bridge was not at risk of lengthy closure due to a serious ship impact at the navigation spans.
The design of the Scheme was carried out by Jacobs, who provide Engineering Consultancy services to the Board under a Framework Agreement.
The work was awarded to specialist contractor Volker Stevin in 2011 following a competitive Tendering process using an innovative Early Contractor Involvement (ECI) variant of the New Engineering Contract (NEC3).
The works were carried out from substantial floating marine plant, which will be located in close proximity to the bridge and highly visible to users, however the road bridge remained open to traffic and pedestrians throughout the project.
Volker Stevin started the works on site in March 2012 with the installation of 60m long steel tubular driven piles and the installation of scour protection to the riverbed in the area of the pier protection works. This is carried out by placing a concrete mattress on the river bed.
The fabrication and installation of precast concrete shell units weighing between 250 and 300 tonnes each form the soffit and outer perimeter of the pier protection fendering structure. These were placed onto the piled foundations connected together structurally using concrete placed in several stages.
Fife Abutment Bearing Replacement
|Brief Description:||Replacement of sliding bearings at south end of bridge and associated works to Fife Abutment|
Lighting Column Replacement
|Brief Description:||Replacement of existing lighting columns with galvanised/painted steel columns|
|Brief Description:||Replacement of fixed/sliding bearings to columns and Dundee Abutment, internal strengthening and modification of internal diaphragms|
|Contractor:||Cleveland Bridge UK|
Box Girder Strengthening
|Brief Description:||Strengthening to internal ring beam stiffeners to increase bridge carrying capacity to 44 tonnes|
Inspection And Maintenance
Inspection and routine maintenance is carried out by the Boards in house Maintenance Section
There are two self propelled gantries on the bridge which allows access to be made to the majority of the structure without the need for disruption to traffic.