Guyed bridge simple monitoring device

Abstract

The utility model discloses a guyed bridge simple monitoring device, and relates to the technical field of bridge monitoring. Comprising two first supporting plates, second supporting plates are arranged on the opposite sides of the two first supporting plates, and the first supporting plates and the second supporting plates are fixed through connecting pieces. According to the utility model, two groups of first supporting plates, second supporting plates, first arc-shaped pressing plates, second arc-shaped pressing plates and monitoring assemblies are arranged, after the monitoring device is mounted on the top stay wire and the bottom stay wire, when the top stay wire and the bottom stay wire move back to back due to looseness, the resistance wire is stretched, so that the resistance value of the resistance wire is increased, and the monitoring effect is improved. Therefore, the displacement between the top stay wire and the bottom stay wire is monitored in real time through the display of the controller, the potential structural safety problem can be prevented, and the overall stability of the cable-stayed bridge is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge monitoring technical field, concretely is a kind of simple monitoring device of stay cable type bridge. BACKGROUND

[0002] Stay cable type bridge (usually refers to cable-stayed bridge or suspension bridge etc. bridge type with cable as main force component) is the representative structure form in modern bridge engineering, and it realizes large-span span through cable to transmit bridge load to tower column or anchorage.

[0003] Chinese utility model patent, authorized announcement number CN222166379U discloses a cable-stayed cable force tensioning real-time monitoring device, and relates to the technical field of bridge construction equipment, the real-time camera is electrically connected with the signal receiving module through the positioning module, the data monitored is analyzed by signal analyzer, and then the data is transmitted to the data controller by signal transmission rod using data import block, and the data is displayed in the display after being collected by monitoring data collector.

[0004] In cable-stayed bridge, cable-stayed cable is the key component to bear and transmit bridge load. Due to the limitations of manufacturing, transportation and installation, cable-stayed cable often needs to be made in sections, and then connected on site. The role of the connector is to reliably connect the two sections of cable-stayed cable together, to ensure the integrity and stress performance of the cable-stayed cable. It is necessary to monitor the displacement between the top stay cable and the bottom stay cable to timely find out whether there is abnormal deformation or looseness of the cable-stayed cable, which helps to prevent potential structural safety problems and ensure the overall stability of the cable-stayed bridge. SUMMARY

[0005] The utility model aims at providing a simple monitoring device for stay cable type bridge to solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a simple monitoring device for stay cable type bridge, comprising two first support plates, a second support plate is arranged on the opposite side of each of the two first support plates, and a connecting piece is arranged between a group of first support plates and second support plates for fixation.

[0007] A plurality of first arc-shaped pressing plates are fixed on the opposite sides of a group of first support plates and second support plates, and a plurality of second arc-shaped pressing plates are fixed on the opposite sides of another group of first support plates and second support plates.

[0008] A monitoring assembly is arranged between the two first support plates on one side, and the displacement between the top stay cable and the bottom stay cable installed in the connector is monitored by the monitoring assembly.

[0009] Preferably, the connecting piece comprises a plurality of screw rods fixed on the side of the first support plate, the screw rods are movably inserted with the second support plate, and fastening nuts are screwed on the rod bodies of the screw rods.

[0010] Preferably, the plate body of the first support plate is fixed with conductive contact heads, and an electric resistance wire is fixed between the two conductive contact heads.

[0011] The side of each of the two conductive contact heads is fixed with a wire, and a detection circuit for measuring the resistance value of the electric resistance wire is connected between the two wires.

[0012] Preferably, an elastic protection piece is fixed between the plate bodies of the two first support plates, and the electric resistance wire is located in the elastic protection piece.

[0013] Preferably, the opposite sides of the two first support plates are fixed with connecting rods, a spacing is formed between the end portions of the two connecting rods, and an internally threaded handle is movably screwed between the two connecting rods.

[0014] Preferably, a stop ring is fixed on the rod body of one of the connecting rods.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] The stay cable type bridge simple monitoring device sets two groups of first support plates, second support plates, first arc-shaped pressing plates, second arc-shaped pressing plates and monitoring assemblies, after the monitoring device is installed on the top stay cable and the bottom stay cable, when the top stay cable and the bottom stay cable are moved back due to loosening, the electric resistance wire is elongated, the resistance value of the electric resistance wire is increased, and the displacement between the top stay cable and the bottom stay cable is displayed through the display of the controller, the real-time monitoring of the displacement between the top stay cable and the bottom stay cable is realized, potential structural safety problems are prevented, and the overall stability of the cable-stayed bridge is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the whole structure schematic view of the utility model;

[0018] Figure 2 It is the connection schematic view of the utility model;

[0019] Figure 3 It is the half sectional view of the monitoring assembly of the utility model.

[0020] In the drawing: 1, first support plate; 101, screw rod; 102, fastening nut; 2, second support plate; 3, first arc-shaped pressing plate; 4, second arc-shaped pressing plate; 5, monitoring assembly; 501, electric resistance wire; 502, conductive contact head; 503, elastic protection piece; 504, wire; 601, connecting rod; 602, stop ring; 603, internally threaded handle; 7, bottom stay cable; 8, top stay cable; 9, connector. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0022] As shown in Figures 1-3 , the present application provides a technical solution: a stay type bridge simple monitoring device, comprising a controller and two first support plates 1 in L shape, second support plates 2 are arranged on the opposite sides of the two first support plates 1, in this way, two groups of first support plates 1 and second support plates 2 are formed, the first support plate 1 and the second support plate 2 of each group are fixed through the connecting piece, in the present scheme, in order to facilitate the quick installation between the first support plate 1 and the second support plate 2, as shown in Figure 1 and Figure 2 , the connecting piece comprises a plurality of screw rods 101 fixed on the side surface of the first support plate 1, the screw rod 101 is movably inserted with the second support plate 2, the rod body of the screw rod 101 is screwed with a fastening nut 102, the opposite sides of a group of first support plates 1 and second support plates 2 are fixed with a plurality of first arc-shaped pressing plates 3, the opposite sides of another group of first support plates 1 and second support plates 2 are fixed with a plurality of second arc-shaped pressing plates 4, in the present scheme, the screw rod 101 on the side surface of the first support plate 1 is arranged at the middle position of the first support plate 1, the number thereof is two, and it is horizontally symmetrically arranged on both sides of the first support plate 1, the number of the first arc-shaped pressing plate 3 on the opposite sides of the first support plate 1 and the second support plate 2 is two, which is longitudinally symmetrically arranged on the first support plate 1 and the second support plate 2, the arc-shaped groove in the inner side of the first arc-shaped pressing plate 3 is matched with the bottom stay 7, similarly, the number of the second arc-shaped pressing plate 4 on the opposite sides of another group of first support plates 1 and second support plates 2 is two, which is longitudinally symmetrically arranged on the first support plate 1 and the second support plate 2, the arc-shaped groove in the inner side of the second arc-shaped pressing plate 4 is matched with the top stay 8.

[0023] When installing, the second support plate 2 is inserted with the screw rod 101, then the fastening nut 102 is rotated until the first arc-shaped pressing plate 3 on both sides extrudes the outside of the bottom stay 7 and the second arc-shaped pressing plate 4 on both sides extrudes the outside of the top stay 8.

[0024] As shown in Figure 1 and Figure 3 , the monitoring assembly 5 is arranged between the two first support plates 1 on one side, the displacement between the top stay 8 and the bottom stay 7 installed in the connector 9 is monitored through the monitoring assembly 5.

[0025] As Figure 3 shown, the monitoring assembly 5 comprises conductive contact heads 502 fixed on the plate body of the first support plate 1, an electric resistance wire 501 fixed between the two conductive contact heads 502, and wires 504 fixed on the sides of the two conductive contact heads 502, with a detection circuit connected between the two wires 504, which is composed of a power supply, a voltmeter, an ammeter and other components, so that the resistance value of the electric resistance wire 501 is measured by the detection circuit, and the measured data is transmitted to the controller, and the resistance value of the electric resistance wire 501 is displayed by the display of the controller, which can be arranged in the control room of the bridge management department.

[0026] To prevent the circuit from being short-circuited in rainy days, an elastic protective piece 503 made of rubber material is fixed between the plate bodies of the two first support plates 1, and the electric resistance wire 501 is located in the elastic protective piece 503, and in addition, insulating glue is coated on the conductive contact heads 502 during installation or production of the device.

[0027] To facilitate carrying of the device and prevent the electric resistance wire 501 from being damaged during installation of the electric resistance wire 501 through the two first support plates 1, connecting rods 601 are fixed on the opposite sides of the two first support plates 1, and a space is formed between the end portions of the two connecting rods 601, and in addition, an internally threaded handle 603 is movably screwed between the two connecting rods 601, and a stop ring 602 is fixed on the rod body of one of the connecting rods 601.

[0028] For the supplement of the present scheme, during installation of the device, the internally threaded handle 603 is screwed between the two connecting rods 601, and the end face of the internally threaded handle 603 is in contact with the side face of the stop ring 602, the staff holds the internally threaded handle 603, and presses the first arc-shaped pressing plate 3 and the second arc-shaped pressing plate 4 on the two first support plates 1 on the side faces of the bottom pull wire 7 and the top pull wire 8 respectively, and then inserts the second support plate 2 with the screw rod 101, and rotates the fastening nut 102 until the first arc-shaped pressing plates 3 on both sides extrude the outside of the bottom pull wire 7 and the second arc-shaped pressing plates 4 on both sides extrude the outside of the top pull wire 8, so as to realize the fixation of the monitoring device, and finally the staff reversely rotates the internally threaded handle 603 until the internally threaded handle 603 moves to the rod body of one of the connecting rods 601, as shown in Figure 2 , at this time, an active space is formed between the end face of the internally threaded handle 603 and the other connecting rod 601 (to prevent interference with the elongation of the electric resistance wire 501), so that when the top pull wire 8 and the bottom pull wire 7 move back due to loosening, the electric resistance wire 501 is elongated, the resistance value of the electric resistance wire 501 is increased, and the resistance value is displayed through the display of the controller, so as to realize real-time monitoring of the displacement amount between the top pull wire 8 and the bottom pull wire 7.

[0029] Although the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the embodiments can be changed, modified, replaced and varied in many ways without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended embodiments and their equivalents.

Claims

1. A simple monitoring device for a guyed bridge, comprising two first support plates (1), characterized in that: The opposite sides of the two first support plates (1) are provided with second support plates (2), and a group of first support plates (1) and second support plates (2) are fixed through connecting pieces; The opposite sides of a group of first support plates (1) and second support plates (2) are fixed with a plurality of first arc-shaped pressing plates (3), and the opposite sides of another group of first support plates (1) and second support plates (2) are fixed with a plurality of second arc-shaped pressing plates (4); The two first support plates (1) on one side are provided with a monitoring assembly (5) for monitoring the displacement between the top pull wire (8) and the bottom pull wire (7) installed in the connector (9).

2. The simple monitoring device for stay cable of a bridge according to claim 1, characterized in that: The connecting piece comprises a plurality of screw rods (101) fixed on the side of the first support plate (1), the screw rod (101) is movably inserted with the second support plate (2), and the rod body of the screw rod (101) is screwed with a fastening nut (102).

3. The simple monitoring device for stay cable of bridge according to claim 1, characterized in that: The monitoring assembly (5) comprises a conductive contact head (502) fixed on the plate body of the first support plate (1), and an electrically conductive contact head (502) is fixed with an electrically conductive contact head (502) between the two electrically conductive contact heads (502). The side of the two conductive contact heads (502) is fixed with a wire (504), and the two wires (504) are connected with a detection circuit for measuring the resistance value of the electrically conductive contact head (502).

4. The simple monitoring device for stay cable of a bridge according to claim 2, characterized in that: The plate bodies of the two first support plates (1) are fixed with an elastic protective member (503), and the electrically conductive contact head (502) is located in the elastic protective member (503).

5. The simple monitoring device for stay cable of a bridge according to claim 1, characterized in that: The opposite sides of the two first support plates (1) are fixed with connecting rods (601), and the two connecting rods (601) are movably screwed with an internally threaded handle (603).

6. The simple monitoring device for stay cable of a bridge according to claim 5, characterized in that: The rod body of one of the connecting rods (601) is fixed with a stop ring (602). The rod body of one of the connecting rods (601) is fixed with a stop ring (602).

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