Fibre-composite rod

A rod with two ends and a longitudinal axis and having a tubular fibre-composite wall comprising at least one layer of paraxial unidirectional fibres, a woven tube of fibres lying over said layer and crossing at an angle to the axis of the rod, said rod being provided at both said ends with a connection fitting for the axial introduction of tensile and/or-compressive forces, said wall of said rod being cut through between said connection fittings to form two rod elements and there being disposed between said rod elements an actively controllable, first force-generating element, said first force-generating element being effective in the direction of said longitudinal direction of said rod to elongate the rod, and comprising a cylindrical ring disposed on the outside of said rod elements, stop shoulders for said first force-generating element being formed at the end of each of said rod elements, a second force-generating element being disposed inside said rod, and loops being disposed in each of said rod elements, said loops being axially fixed to said rod elements and guided around the axially opposite ends of said second force-generating element in such a way that they in each case overlap the end of said second force-generating element directed axially away from the rod element to which said loops are fixed, so that upon elongation of the Second force-generating element tensile forces are exerted upon said rod elements tending to draw said rod elements together.