ball joint for forbindning of a tower, which uppber a overvattensplattform, with one on the seabed founded foundations

摘要

A ball and socket joint for joining a tower carrying a surface platform to a foundation on the ocean bed has a bearing ring 10 having a tin-lead-bronze alloy as the sliding surface. The joint also has a torsion preventer in the form of a torsion-resistant pipe 8 extending through the joint inner area linked to an arrangement comprising fitted pins 14 with sliding pads 15 guided in slide chairs 9. The arrangement prevents any rotary movement of the tower base, but allows sloping positions. IMAGE