SU949036A1 - Device for anchoring elongated stressed element in prestressed structure - Google Patents

Description

DEVICE FOR ANCHORING OF LENGTH

(54) TIGHTENED ELEMENT IN TIGHTED CONSTRUCTION

The invention relates to construction and can be used for the installation of cable-stayed bridges and similar structures.

A device for anchoring a rope is known, comprising an anchor fixed on the rope, a lead-sheet gasket, fork-shaped and thrust washers and a ducting device in the form of a steel pipe fixed in the body of the tensile structure 1. Q

The disadvantage of this device lies in the low reliability of its operation due to the possible unevenness of transmitting the force through the thrust washer to the supporting structure, as well as due to the absence of fixing of the thrust washer relative to the axis of the rope and the channel former.

The closest to the proposed technical essence and the achieved effect is a device for anchoring a long-dimensional tension element in a tensile structure, including

rigidly fixed to the tensioned element anchor, intermediate element with a convex or concave spherical surface. the thrust washer, respectively, with a concave or convex surface) in contact with the surface of the intermediate element, and an imaging channel fixed in the structure to be passed to pass and fix the position of the tension element, and the thrust washer is integral with a flat face along the BeiDCHocTH contact with the channel former 2.

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Claims (1)

A disadvantage of the known device lies in the relatively low reliability of its operation due to the absence of fixing of the thrust washer relative to the axis of the long-length tension element and the channel-forming hole, as well as in the increased complexity of installation of the device due to the impossibility of a hard fit of the anchor on the tensioned element before installation after installation sego The purpose of the invention is to increase reliability and simplify installation of the device. This chain is achieved by the fact that in the device for anchoring a long-length tension element in a tension structure, including an anchor rigidly attached to the tension element, an intermediate element with a convex or concave spherical surface, a thrust washer respectively with a concave or convex surface in contact with the surface of the intermediate element, and the channel-forming device, fixed in the tensioned structure, for the passage and fixation of the position of the tension element, the emphasis on the washer is made hydrochloric two halves, each of which snabzkena protrusion vtolnennym in cross-section in the form of half rings, Placing a cavity and the ambient kanaloobrazovatel relevant part sectional long length stress element. On fga. 1 shows an anchoring device, a longitudinal section; in fig. 2A-A in FIG. one; in fig. 3 shows a section BB in FIG. 1. A device for anchoring a long-length tension element 1, for example, a rope or cable, contains anchor 2 rigidly attached to the tension element 1, an intermediate element 3 with a convex or concave spherical surface, an thrust washer 4 respectively with a concave or convex surface) facing to the spherical surface of the intermediate element 3, and a duct 6 fixed in the tension structure 5 to pass and fix the position of the tension element 1, and the thrust washer 4 is made of a composite of two floors n, each of which is provided with a protrusion 7, made in the cross-section in the shape of a semi-ring, placed in the cavity of the duct former 6 and enclosing the corresponding part of the section of the long-dimensional tension element 1. After transferring the force to the tension element 1, the intermediate element 3 with a spherical surface fixes the thrust washer 4 At the mouth of the duct former. The rotations of the anchor 2 and the length element 1 relative to its original longitudinal axis, which are necessary in the course of installation and operation, are provided by the turns in the ball joint formed by the spherical surfaces of the intermediate element and the thrust washer. The application of the proposed device increases the reliability of its work by ensuring the fixing of the thrust washer by introducing protrusions made on it into the mouth of the channel of the canalizer, and also reduces the laboriousness of installing the device by allowing hard anchors to fit the end sections of the long-tensioned element before beginning mounting. The invention The device for anchoring a long-length tension element in a tension structure, including an anchor rigidly attached to a tension element, an intermediate element with a convex or concave spherical surface, a thrust washer with a concave or convex surface, respectively. in contact with the surface of the intermediate element, and a ducting device fixed in the tension structure for passing and fixing the position of the tension element, characterized in that, in order to improve reliability and simplify the installation of the device, the thrust washer is made of two halves, each of which is equipped with a height made in cross-section in the form of a semiring placed in the cavity of the channel-freezer and enclosing the corresponding part of the section of the long-length tension element. Sources of information taken into account in the examination 1. N. Barenboim and others. Industrial construction of bridges. K., Budivelg 1978, p. 126-127, fig. 62 in. 2, Patent Franche № 2307О85, cl. E O2D 5 / GS, 1976. Fi.2 6 Fig.Z