Relating to reinforcement of wind turbine towers

A method for assembling a tower for a wind turbine, the method comprising:

• providing a tower section;
• locating a removable tensioning arrangement within a radial bounds of the tower section, the tensioning arrangement arranged substantially perpendicular to a central axis of the tower section;
• attaching the removable tensioning arrangement including at least one tensioning device between at least three attachment points associated with the tower section and located proximate to an end thereof;
• and
• applying tension to the at least one tensioning device so as to provide radial stiffness to the tower section.

A method for assembling a tower for a wind turbine, the method comprising:

• providing a tower section;
• locating a tensioning arrangement within a radial bounds of the tower section, the tensioning arrangement arranged substantially perpendicular to a central axis of the tower section;
• attaching the tensioning arrangement including at least one tensioning device between at least three attachment points associated with the tower section and located proximate to an end thereof;
• applying tension to the at least one tensioning device so as to provide radial stiffness to the tower section;
• lifting the tower section into a position for assembly;
• attaching the tower section to one of a foundation or another tower section;
• and
• removing the tensioning arrangement.