Method for attaching or fixing structural components using a threaded joint pretensable high resistence and a set screw for high strength joints prestressable

摘要

Method for attaching or fixing two flanges (7, 8) using a pretensable threaded connection with high strength, by rotating a nut (2) of the screw connection with respect to a screw (1) having shape sucesivauna thread section head in contact with the flange (8), a thread section stem and derosca section with the nut, the diameter of stem (d) in the same or lower shaft section (3) eldiámetro tread, have the screw (1) and nut (2) so that the nut (2) supported indirectly or directly conrespecto the other flange (7) is a length of threaded portion (L) of the screw (1) protruding outside latuerca (2) at least 0.5 times the outer thread diameter (D) of the screw, placing a cylinder tensioning screw (20) having a base part (21) and a tensioning tool (22) movable longitudinally with respect to the base part, so that the part b ase (21) indirectly is apoyade with respect to the other flange (7) so that it overlaps the nut (2), supporting the piezabase (21) only on a washer (30) disposed between the flange (7) and the nut (2) whose diameter is GreaterThan the largest diameter of the nut (2) and offering a contact surface for the cylinder tensioning screw (20), tighten the screw (1) by tensioning tool (22) which engages axially in an interlocking manner inthe threaded portion protruding from the nut (2) adjusting the length of the shaft section (3) and rotating almismo time and / or below the nut (2).