High-strength intelligent composite cable

Abstract

The utility model relates to the technical field of building cables, in particular to a high-strength intelligent composite cable which is provided with a central steel wire, an inner steel wire layer and an outer steel wire layer from inside to outside. Wherein a fiber grating sensor is arranged in the central steel wire, the stress condition of the composite cable can be monitored in real time, and use safety is guaranteed; the inner steel wire layer adopts high-strength zinc-aluminum alloy steel strands, so that the structural strength of the composite cable is improved; the outer steel wire layer adopts stainless steel, so that the corrosion resistance of the composite cable is improved; the inner steel wire layer and the outer steel wire layer are arranged on the outer side of the center steel wire, the fiber grating sensor is protected, and the monitoring precision of the stress condition of the composite cable is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of building cables, in particular to a high-strength intelligent composite cable. Background Art

[0002] Cable structures are increasingly widely used in building structures, and construction technology is developing rapidly. The stress and working status of the cable are one of the important indicators that directly reflect whether the structure is in a safe state. It is of great significance to effectively monitor the cable force during the construction and operation stages, and it is necessary to detect the stress status of the entire cable system.

[0003] In recent years, in order to monitor the cable structure, sensor tendons are installed on the cable structure. However, due to the low strength of the sensor tendons, they are easily damaged after long-term use, affecting the monitoring accuracy. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a high-strength intelligent composite rope.

[0005] The utility model adopts the following technical solutions:

[0006] A high-strength intelligent composite cable, comprising:

[0007] A central steel wire, wherein a fiber grating sensor is built into the central steel wire, and the fiber grating sensor is used to sense the magnitude of the force;

[0008] An inner steel wire layer, the inner steel wire layer being arranged outside the central steel wire;

[0009] An outer steel wire layer is arranged on the outer side of the inner steel wire layer.

[0010] Preferably, the fiber grating sensor is coaxially arranged with the central steel wire, and the fiber grating sensor extends along the length direction of the central steel wire.

[0011] Preferably, the inner steel wire layer comprises a plurality of high-strength steel wires, and the plurality of high-strength steel wires are twisted in a spiral shape on the outside of the central steel wire.

[0012] Preferably, the cross-sectional shape of the high-strength steel wire is circular.

[0013] Preferably, the outer steel wire layer includes a plurality of special-shaped steel wires, and the special-shaped steel wires are twisted in a spiral shape on the outer side of the inner steel wire layer.

[0014] Preferably, the cross-sectional shape of the special-shaped steel wire is Z-shaped.

[0015] Preferably, one side of the special-shaped steel wire is provided with an inner abutment surface and an inner connecting end; the other side of the special-shaped steel wire is provided with an outer abutment surface and an outer connecting end; after the special-shaped steel wire is twisted, the inner connecting end of the special-shaped steel wire is spliced ​​with the outer abutment surface of the adjacent special-shaped steel wire; after the special-shaped steel wire is twisted, the outer connecting end of the special-shaped steel wire is spliced ​​with the inner abutment surface of another adjacent special-shaped steel wire.

[0016] Preferably, the cross-sectional shape of the special-shaped steel wire is a trapezoid; after the special-shaped steel wire is twisted, the side edges of adjacent special-shaped steel wires are spliced ​​together.

[0017] Preferably, the cross-sectional shape of the special-shaped steel wire is H-shaped.

[0018] Preferably, the special-shaped steel wire includes an inner side surface arranged on the inner side of the special-shaped steel wire, an outer side surface arranged on the outer side of the special-shaped steel wire, and two side connecting edges arranged on the side surfaces of the special-shaped steel wire, and the side connecting edges are arc-shaped; adjacent side connecting edges are spliced ​​to form a accommodating cavity, and a supporting steel wire is arranged in the accommodating cavity.

[0019] The beneficial effects of the utility model are:

[0020] The high-strength intelligent composite rope involved in the utility model is provided with a central steel wire, an inner steel wire layer, and an outer steel wire layer from the inside to the outside; the central steel wire is built with a fiber optic grating sensor, which can monitor the stress condition of the composite rope in real time to ensure safe use; the inner steel wire layer adopts high-strength zinc-aluminum alloy steel strands to improve the structural strength of the composite rope; the outer steel wire layer adopts stainless steel to improve the corrosion resistance of the composite rope; the inner steel wire layer and the outer steel wire layer are arranged on the outside of the central steel wire to protect the fiber optic grating sensor and ensure the monitoring accuracy of the stress condition of the composite rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the first embodiment of the utility model;

[0022] Figure 2 for Figure 1 Schematic diagram of the structure of the medium shaped steel wire;

[0023] Figure 3 This is a schematic structural diagram of the second embodiment of the utility model;

[0024] Figure 4 for Figure 3 Schematic diagram of the structure of the medium shaped steel wire;

[0025] Figure 5 This is a schematic structural diagram of the third embodiment of the utility model;

[0026] Figure 6 for Figure 5 Schematic diagram of the structure of the medium shaped steel wire;

[0027] Numbers in the figure:

[0028] 10-center steel wire; 101-fiber Bragg grating sensor;

[0029] 20-inner steel wire layer; 201-high-strength steel wire;

[0030] 30-outer steel wire layer;

[0031] 40-special-shaped steel wire; 40a-special-shaped steel wire; 40b-special-shaped steel wire;

[0032] 401-inner abutment surface; 402-inner connection end;

[0033] 403-external abutment surface; 404-external connection end;

[0034] 405-side;

[0035] 406 - inner side; 407 - outer side; 408 - side connecting edge; 409 - receiving cavity;

[0036] 50-Support wire. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] In the description of the present invention, it should be noted that the terms "vertical direction", "upper", "lower", "horizontal" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0039] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, or a connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] like Figure 1 to Figure 2 As shown, the high-strength intelligent composite cable of the first embodiment of the utility model is applied to the structural connection of large buildings, curtain wall structures, and bridges, and specifically includes a central steel wire 10, an inner steel wire layer 20 arranged outside the central steel wire 10, and an outer steel wire layer 30 arranged outside the inner steel wire layer 20.

[0041] In this embodiment, the central steel wire 10 is built with a fiber grating sensor 101, which is used to sense the force of the composite rope, and then monitor the stress condition of the composite rope. Specifically, the fiber grating sensor 101 is coaxially arranged with the central steel wire 10, and the fiber grating sensor 101 extends along the length direction of the central steel wire 10. The fiber grating sensor 101 is arranged in the central part of the central steel wire 10 to ensure monitoring accuracy. At the same time, both ends of the fiber grating sensor 101 pass through the central steel wire 10 to output monitoring data outward.

[0042] In this embodiment, the inner steel wire layer 20 includes a plurality of high-strength steel wires 201, which are twisted in a spiral shape on the outside of the central steel wire 10; the cross-section of the high-strength steel wire 201 is circular. The high-strength steel wire 201 is specifically a high-strength zinc-aluminum alloy steel wire, and the zinc-aluminum alloy can improve the strength of the composite rope and improve the tensile performance of the composite rope, thereby protecting the inner central steel wire 10 and the fiber grating sensor 101.

[0043] In this embodiment, the outer steel wire layer 30 includes a plurality of special-shaped steel wires 40, which are twisted in a spiral shape on the outer side of the inner steel wire layer 20. Specifically, the cross-sectional shape of the special-shaped steel wire 40 is Z-shaped, and one side of the special-shaped steel wire 40 is provided with an inner abutment surface 401 and an inner connecting end 402; the other side of the special-shaped steel wire 40 is provided with an outer abutment surface 403 and an outer connecting end 404; after the special-shaped steel wire is twisted, the inner connecting end 402 of the special-shaped steel wire 40 is spliced ​​with the outer abutment surface 403 of the adjacent special-shaped steel wire 40; the outer connecting end 404 of the special-shaped steel wire 40 is spliced ​​with the inner abutment surface 401 of another adjacent special-shaped steel wire 40, so as to realize the splicing of adjacent special-shaped steel wires 40 and improve the structural strength.

[0044] See also Figure 3 and Figure 4As shown, the high-strength intelligent composite rope of the second embodiment of the utility model is similar to the high-strength intelligent composite rope of the first embodiment, except that the cross-sectional shape of the special-shaped steel wire 40a is a trapezoid. Figure 4 As shown, an inclined side edge 405 is formed on the side of the special-shaped steel wire 40a; when the special-shaped steel wire 40a is twisted, the side edges 405 of adjacent special-shaped steel wires 40 are spliced ​​together, the connection is compact, and the structural strength is improved.

[0045] See also Figure 5 and Figure 6 As shown, the high-strength intelligent composite rope of the third embodiment of the utility model is similar to the high-strength intelligent composite rope of the first embodiment, except that the cross-sectional shape of the special-shaped steel wire 40b is H-shaped. Figure 6 As shown, the special-shaped steel wire 40b includes an inner side surface 406 arranged on the inner side of the special-shaped steel wire 40b, an outer side surface 407 arranged on the outer side of the special-shaped steel wire 40b, and two side connecting edges 408 arranged on the side of the special-shaped steel wire 40b, and the side connecting edges 408 are arc-shaped; when the special-shaped steel wire 40b is twisted, adjacent side connecting edges 408 are spliced ​​to form a receiving cavity 409, and a supporting steel wire 50 is arranged in the receiving cavity 409.

[0046] Compared with the prior art, the high-strength intelligent composite rope involved in the utility model is provided with a central steel wire, an inner steel wire layer, and an outer steel wire layer from the inside to the outside; the central steel wire is built with a fiber optic grating sensor, which can monitor the stress condition of the composite rope in real time to ensure safe use; the inner steel wire layer adopts high-strength zinc-aluminum alloy steel stranded wire to improve the structural strength of the composite rope; the outer steel wire layer adopts stainless steel to improve the corrosion resistance of the composite rope; the inner steel wire layer and the outer steel wire layer are arranged on the outside of the central steel wire to protect the fiber optic grating sensor and ensure the monitoring accuracy of the stress condition of the composite rope.

[0047] The above only expresses the preferred technical solution of the utility model, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and the utility model is also intended to include these modifications and modifications.

Claims

1. A high-strength intelligent composite cable, characterized in that: include: A central steel wire, wherein a fiber grating sensor is built into the central steel wire, and the fiber grating sensor is used to sense the magnitude of the force; An inner steel wire layer, the inner steel wire layer being arranged outside the central steel wire; An outer steel wire layer is arranged on the outer side of the inner steel wire layer.

2. The high-strength intelligent composite cable according to claim 1, characterized in that: The fiber grating sensor is coaxially arranged with the central steel wire, and the fiber grating sensor extends along the length direction of the central steel wire.

3. The high-strength intelligent composite cable according to claim 1, characterized in that: The inner steel wire layer comprises a plurality of high-strength steel wires, and the plurality of high-strength steel wires are twisted in a spiral shape on the outer side of the central steel wire.

4. The high-strength intelligent composite cable according to claim 3, characterized in that: The cross-sectional shape of the high-strength steel wire is circular.

5. The high-strength intelligent composite cable according to claim 1, characterized in that: The outer steel wire layer comprises a plurality of special-shaped steel wires, and the special-shaped steel wires are twisted in a spiral shape on the outer side of the inner steel wire layer.

6. The high-strength intelligent composite cable according to claim 5, characterized in that: The cross-section of the special-shaped steel wire is Z-shaped.

7. The high-strength intelligent composite cable according to claim 6, characterized in that: One side of the special-shaped steel wire is provided with an inner abutment surface and an inner connecting end; the other side of the special-shaped steel wire is provided with an outer abutment surface and an outer connecting end; after the special-shaped steel wire is twisted, the inner connecting end of the special-shaped steel wire is spliced ​​with the outer abutment surface of the adjacent special-shaped steel wire; after the special-shaped steel wire is twisted, the outer connecting end of the special-shaped steel wire is spliced ​​with the inner abutment surface of another adjacent special-shaped steel wire.

8. The high-strength intelligent composite cable according to claim 5, characterized in that: The cross-section of the special-shaped steel wire is a trapezoid; after the special-shaped steel wire is twisted, the sides of adjacent special-shaped steel wires are spliced ​​together.

9. The high-strength intelligent composite cable according to claim 5, characterized in that: The cross-section of the special-shaped steel wire is H-shaped.

10. The high-strength intelligent composite cable according to claim 9, characterized in that: The special-shaped steel wire includes an inner side surface arranged on the inner side of the special-shaped steel wire, an outer side surface arranged on the outer side of the special-shaped steel wire, and two side connecting edges arranged on the side surfaces of the special-shaped steel wire, and the side connecting edges are arc-shaped; adjacent side connecting edges are spliced ​​to form a accommodating cavity, and a supporting steel wire is arranged in the accommodating cavity.

Images