Problem
We were asked at short notice to provide two large ScaffFloat pontoons to support the stern ramps of a Stena Ferry while it was in port.
The ramps needed to be cut and extended and our role was to support the ramps on the hinge pins while the hydraulics were commissioned and tested, as well as providing access underneath.
Solution
We mobilised two 16m x 6.4m ScaffFloats, each with 8 x 750mm Apollo longitudinal beams and transverse 450mm custom-made 450mm beams.
> Self-weight: 10t
> Buoyancy: 48m3
> Max payload: 30t
> Cat 3 check: Richter
> Scaffold: George Roberts Ltd
On deck, 20ft containers were used with steel packers to support the ramps at the correct height, this created a 20t single-point load (well, over a 2.5m span) in the middle of the pontoon. Before the job started a floating test was completed using a weighed scrap metal bin weighing 20t.