RU116155U1 - DEVICE FOR SHORE FASTENING OF FLOATING STRUCTURES - Google Patents

Abstract

A device for coastal fastening of floating structures, containing beams horizontally located in the ground and spaced along the height, equipped with cargo lugs, to which the ropes are attached, characterized in that the upper and lower beams are interconnected by flexible ties for load lugs, which are made on the lateral surfaces on a distance of 0.207 L (L is the length of the beam) from each end of the upper beam and in the middle of the lower beams, deployed relative to the upper beam at an angle of π / 2.

Description

The utility model relates to the water transport of forests, in particular to the supports of timber-alloy structures.

Known anchor for mounting floating structures, containing a group of logs, completely buried in the ground. The rope is wound on an anchor and fastened with clamps, and a loop is brought out onto the surface (Forest Water Transport Handbook. Edited by V. A. Scherbakov. - M.: Lesnaya promst-st, 1986. - 74 pp.).

The following disadvantages are inherent in this anchor: small holding force, short, up to 5 years, service life, the ability to scroll the anchor when the rope is tightened with a working load, which reduces the holding force.

Closest to the claimed solution is a device for coastal fastening of overburden structures, which contains horizontal, spaced apart by racks in height beams with cargo eyes, to which the ropes are attached (certificate for utility model No. 15105. BI No. 26, 09/20/2000).

This device is taken as a prototype. The prototype has the following disadvantage. This is a lack of reliability of the device, because the distribution between the load beams acting from the overhead structure on the device depends on the exact execution of the length of the ropes for the upper and lower beams, on the angle of inclination to the rope horizon, holding the overhead structure, as well as on the exact location of the upper beam above the lower.

The problem the utility model is aimed at improving the reliability of the device.

This is achieved by the fact that in a device containing beams horizontally located in the ground with cargo eyes and ropes attached to them, the lower beams are deployed relative to the upper ones at an angle π / 2 and are connected by flexible connections for the cargo eyes to the upper beam. In this case, the cargo eyes are made on the side surfaces at a distance of 0.207 L from each end of the upper beam (L is the length of the beam) and in the middle of the lower beams.

These essential features allow you to transfer the load from the overhead structure to the upper beam and through flexible connections to the lower beams. Moreover, due to the rotation of the lower beams at an angle π / 2, their location under the upper beam and the transfer of external load through flexible connections to the lower beams, the moment of forces acts, and in the vertical plane. In addition, the implementation of cargo eyes on the lateral surfaces of the upper beam at a distance of 0.207 L from each of its ends allows you to achieve a minimum bending moment acting on the upper beam in the horizontal plane. All of the above can improve the reliability of the device, i.e. solve the problem.

The authors are not aware of the existence of a similar device characterized by a combination of essential features introduced into the utility model formula. Therefore, the authors believe that the utility model meets the patentability criterion of “novelty”.

In figure 1. shows a device, side view, figure 2, too, top view.

The device contains horizontally located in the ground upper 1 and lower 2 beams, which are interconnected by flexible connections 3 for cargo eyes 4, and the lower beams are deployed relative to the upper ones at an angle π / 2. From the side of the overhead structure, the ropes 5 are attached to the cargo eyes of the upper beam, which are connected to the rope 7 from the overhead structure using the connecting link 6. Cargo eyes are made on the side surfaces at a distance of 0.207 L from each end of the upper beam and in the middle of the lower beams.

Installation of the device is as follows. At the bottom of the open pit, lower beams 2 are laid with cargo eyes 4 up. The beams are laid parallel to the design direction of the external load and at an equal distance from it on both sides. The distance between the beams in the axes should be equal to 0.586 L. Then, the upper beam 1 is laid on the lower beam, so that the cargo eyes of the upper beam are in the horizontal plane and above the lower beams. After that, the lower beams are connected to the upper using flexible connections, and ropes 5 are connected to the cargo eyes from the side of the overfloor structure, which are connected with the connecting link 6 to the rope 7 from the overfloor structure. At the end of installation, the foundation pit is covered with a layered tamper.

During operation, the load from the overhead structure is transferred to the upper beam, and through flexible connections to the lower beams. In this case, the upper beam works in the horizontal plane, and the lower beams in the vertical. This arrangement and fastening of the beams between themselves eliminates the "separate" work of the beams. The installation of cargo eyes at a distance of 0.207 L from each end of the upper beam is rational. In this case, the bending moment acting on the upper beam will be minimal. All this improves the reliability of the device.

Claims (1)

A device for coastal fastening of floating structures, containing beams horizontally located in the ground and spaced apart in height, equipped with cargo eyes, to which ropes are attached, characterized in that the upper and lower beams are interconnected by flexible connections for cargo eyes, which are made on the side surfaces on a distance of 0.207 L (L is the length of the beam) from each end of the upper beam and in the middle of the lower beams, deployed relative to the upper beam at an angle π / 2.