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Floating Scaffolding for Construction

Floating Scaffolding for Construction
04 November 2021
 

In an industry first, floating scaffolding has been used to complete a specialist contract lift on the River Severn.

The job further expands the capabilities of the innovative ScaffFloat system that combines patented plastic floats with standard scaffold beams, tubes and clips to make temporary pontoons and workboats for inland and coastal projects. 

Working in partnerships with one of their Approved Installer’s Attridge Scaffolding, the partnership was able to provide a full scope of works that included full access to the vertical concrete penstock face of the riverside waterworks using traditional scaffold, as well as providing two large floating scaffold pontoons for storing and lifting the new eel screens, weighing 2.2t each.

James Attridge said “This project was almost 12 months in the planning. After an initial site visit with the client, it was a case of putting together a scheme utilising past experience from other projects. The exception being the floating lift rig. This is where our professional working relationship with ScaffFloat enabled both parties to work together to develop a solution."

 

Sites on or Near Water

 

As one of the main UK Approved Installers of the floating scaffold system they worked with the ScaffFloat team to develop a custom design that met the very site-specific client requirements. Access to the water was very limited and so both pontoons were built shoreside as a skeleton framework, this kept the weight for the crane lift down to 1t. Once afloat additional tubes, clips and boards were craned down and both pontoons were completed afloat bringing their weight up to around 3t each.

The first pontoon was used as a storage pontoon, with a 6t payload it was used to store components afloat before they were fitted by the team from Edwards Diving.

The second pontoon was fitted with a custom lifting A-frame, this was designed specifically to lift the 2.2t, 6m x 3m Eel Screens. Designed and built to Eurocode standard with a suitable dynamic application and safety factor, it was also proof tested on-site to over 3t. In addition, Richter provided an independent Cat 3 check to provide further safety assurances.

Toby Budd, MD of ScaffFloat said ‘’One of the challenges for this lift was water depth. The eel screens were installed just below the surface so there was not enough draft or water depth to have the pontoon directly above. This meant the 2.2t lifts had to be done over the bow of the pontoon at a distance of 3m.

"It was a great project, and we are proud that we achieved the six lifts ahead of time and without any accidents. This is another example of how quickly the ScaffFloat system is developing, customers love the versatility and we have a number of other lifting jobs in the pipeline.”

Picture: a photograph of the floating scaffolding at the River Severn

Article written by Ella Tansley | Published 04 November 2021

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