| 摘要 |
There is disclosed a clamp, a self-advancing climbing device including two such clamps, and a method of coupling such a clamp to a tubular. In one embodiment of the invention, there is disclosed a clamp ( 1 ) for a tubular, in particular a thin-walled tubular such as the tower ( 3 ) of a wind-turbine. The clamp ( 1 ) comprises at least one clamp member in the form of a friction pad ( 9 ) adapted to grip the tower ( 3 ), and at least one flexible elongate energising element in the form of a tendon ( 16 ) adapted to exert a force on the friction pad ( 9 ) to urge the pad ( 9 ) to grip the tower ( 3 ), whereby the pad ( 9 ) and the tendon ( 16 ) are adapted to exert a substantially uniform radial clamp load on the tower ( 3 ).
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