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Ongoing software trials keep Glasgow tower closed

News

SPECIALIST SUBCONTRACTORS are still working to re-open Glasgow's troubled £8.5M Science Centre Tower, two years after a bearing failure left it jammed in position and closed to visitors.

Main contractor Carillion confirmed this week that it is still unable to predict when the structure will reopen.

A spokeswoman said that specialist subcontractors were still carrying out 'iterative testing' of the software that controls the tower's rotation and ensures the observation cabin at the top always faces into wind.

Trials have been ongoing since the main roller thrust bearing that originally supported the 450t structure's weight was successfully replaced last September with a German-made plain spherical bearing (NCE 25 September 2003).

The failed thrust bearing had allowed the 105m high structure to sink 15mm into its basement pit, jamming the mechanism that ensured the tower could rotate.

More than £1M in ticket sales is believed to have been lost.

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