Network Rail has commenced the most complex plan ever to strengthen, restore and repaint the 151 year old Royal Albert Bridge which carries around 30 trains each day over the River Tamar.
The contract has been awarded to Taziker Industrial who decided to use scaffolding and containment systems from HAKI Ltd based in Tamworth.
HAKI Light scaffolding has been used to form an underdeck 260m long from Devon to Cornwall to provide access throughout the whole length of the bridge for the work force. Whilst in place, repairs/renovations will take place to the steelwork underdeck as the project progresses.
On each of the two 130m long spans, there are two blocks of HAKI Light scaffolding each 13m long by an average height of 24m, capped with a HAKITEC 750 Temporary Roof. The sides are encapsulated using HAKI Trak tracked sheeting, arranged in a way that, if the winds become excessive, they can be released quickly to ensure the integrity of the structure and then re-fitted when safe to do so.
These blocks provide working access around all the steelwork. Starting at both ends of each span, the works will move inwards towards the centre pier, revealing the finished structure as the works progress. The encapsulation system is being used as a means to protect the environment by preventing dust and/or paint from escaping.
"The weight reduction of HAKI Light has been critical to the loading on this unique structure" says Jason Worrall, Rail Director of Taziker Industrial, who also added that "the safe and speedy erection of the suspended access and the adaptability of the HAKI system on this technically demanding contract has been crucial to keeping within the time frame."
- Due to the delicate nature of bridge design, self-weight of scaffolding was severely limited therefore HAKI Light was utilised to mitigate this restriction.
- 25% labour saving on erection.
- Minimal 'leading edge working'.
- Within the containment system, the work force has use of integral HAKI UTV aluminium stairtowers.