Contractors World
 

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Contractors World - 2015 Vol 4 No 1

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An Iconic Structure - Lune West Bridge  - page 2 of 5

UK’s largest mobile cranes, a 1,200 t Gottwald AK-680-3.

The new Lune West Bridge over the River Lune is perhaps the most dramatic of the 13 structures that will be built along the length of the new Heysham to M6 Link Road.

The reinforced substructure is now complete. The 211 m four-span bridge will eventually contain more than 2300 tonnes of steelwork with approximately 55,000 bolts needed to secure the sections.

The steel beams supplied by Cleveland Bridge UK Ltd (CBUK) are to be delivered for onsite sub-assembly before they are lifted into place by the end of May. This will be done using one of the UK’s largest mobile cranes, a 1,200 t Gottwald AK-680-3. The crane itself arrived on site in mid-April, together with as many as 45 wagon loads of components.

This was a typical project for Cleveland Bridge UK Ltd who have been involved in delivering iconic structures such as the Sydney Harbour Bridge, the Forth Road Bridge and the Humber Bridge in Hull to name but a few.

CBUK Project Manager, Dominic Charlton said:

This structure is technically challenging, in both the complexity of the steelwork element and the environment within which the works are being carried out.
     In order to minimise working at height activities, the scheme developed by CBUK requires the steelwork to be sub-assembled into large lift modules at ground level, weighing up to 350 tonnes.
From the north side of the River Lune, four single girder modules are sub-assembled and erected, and from the south side of the river there are six paired girder modules. The key benefit of this setup is that there is only a requirement for one main crane move, from the north side to the south.

With abutments prepared and piers columns completed, positioning the bridge beams could begin.

With abutments prepared and piers columns completed, positioning the bridge beams could begin.

Once sub-assembled, the first four main girders of the new structure will certainly catch the eye, measuring 71.6 metres long by 1.5 metres wide and 4.1 metres high, weighing approximately 160 tonnes each. These sections will be lifted into position from the north bank of the River Lune before the crane is de-rigged and repositioned on the south side of the river to install the remaining sections and girders.

page 3 of 5 >>>

 


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