Abstract: A hang-off system (16) for measuring a top tension in a flexible pipe (12), the hang-off system (16) that includes: an annular collar (66) intended to be arranged around a top end-fitting (26) of a flexible pipe, the annular collar (66) being formed by at least two parts assembled to each other, each part comprising a top plate (82) and a bottom plate (84) assembled to each other, said top plate (82) and bottom plate (84) delimiting an intermediate space (86) between them, at least one part comprising at least one load cell (88) arranged in the intermediate space (86) and sandwiched between the top plate (82) and the bottom plate (84), the bottom plate (84) being intended to be assembled on a surface assembly, a data acquisition system (68) connected to the load cell (86).

Abstract: A stiffener fixation assembly fixed to the outer cover of a flexible tube, the flexible tube being in contact with a stiffener in an I-tube, at the end of which a bell mouth may be fixed, whereby the stiffener fixation assembly is located between the outer surface of the flexible tube and the inner wall of a centralizer and comprises rotary pieces that are axially movable with respect to the inner wall of the I-tube and capable of eliminating the relative movement between the flexible tube and the stiffener.