Deck arch bridge location vibration monitoring device

Abstract

The utility model discloses a deck type arch bridge location vibration monitoring device which comprises an acceleration sensor arranged below a deck type arch bridge body and used for vibration monitoring, and a transmission line used for monitoring information transmission is arranged on the acceleration sensor. The rigid connection assembly is arranged between the deck type arch bridge body and the acceleration sensor and used for rigid connection in the monitoring process, the rigid connection assembly comprises an installation box body, and the acceleration sensor is detachably installed at the lower end of the installation box body through a bolt. According to the deck-type arch bridge site vibration monitoring device, in the process of monitoring vibration of the deck-type arch bridge site through the acceleration sensor, sufficient rigid connection is guaranteed through the self-adaptive attaching effect of the supporting plate and the arc-shaped face of the bottom of the deck-type arch bridge body and the fixing effect of concrete slurry in the installation box body, and meanwhile the vibration of the deck-type arch bridge site is monitored. The efficiency of rigid connection is improved, and rapid and high-quality monitoring use operation of the acceleration sensor is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge position vibration monitoring of a deck type arch bridge, in particular to a bridge position vibration monitoring device of a deck type arch bridge. Background Art

[0002] The vibration monitoring device for a top-supported arch bridge is an important device to ensure the safety and stability of the bridge structure. The accelerometer is a type of vibration monitoring device that can measure the acceleration changes of the bridge during vibration and convert these changes into electrical signals for transmission and processing. By analyzing the data from the accelerometer, information such as the vibration shape, frequency, and amplitude of the bridge can be obtained, and the structural safety performance of the bridge can be evaluated.

[0003] To ensure monitoring accuracy, the sensor is rigidly connected to the bottom surface of the arch bridge to ensure accurate transmission of vibration signals. During the rigid connection process, a special mounting bracket needs to be customized according to the specific curvature of the pier bottom. This process is relatively cumbersome and affects the rapid and high-quality monitoring operation of the acceleration sensor.

[0004] In view of this, the present utility model is proposed. Utility Model Content

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0006] A bridge position vibration monitoring device for an upper-supported arch bridge comprises an acceleration sensor for vibration monitoring arranged below the upper-supported arch bridge body, the acceleration sensor is provided with a transmission line for monitoring information transmission, and further comprises a rigid connection component arranged between the upper-supported arch bridge body and the acceleration sensor for rigid connection during the monitoring process, the rigid connection component comprises a mounting box, the acceleration sensor is detachably mounted on the lower end of the mounting box by bolts, a support plate for abutting against the upper-supported arch bridge body is provided above the mounting box, the support plate and the mounting box are connected and fixed by a rubber sleeve, an injection component for injecting concrete slurry into the interior of the mounting box is provided on the mounting box, and a winding component for winding the transmission line is provided at the lower end of the mounting box.

[0007] The support plate is made of stainless steel.

[0008] The injection assembly includes an injection port opened on the installation box body, and a plug for sealing is threadedly connected to the injection port.

[0009] The two groups of the installation box are fixed with connection ears for assisting the installation and connection with the upper-bearing arch bridge body.

[0010] The winding assembly includes a winding roller fixed to the lower end of the mounting box, and a baffle for blocking the transmission line after winding is fixed to the front end of the winding roller.

[0011] The baffle is provided with a slot for limiting the position of the rolled transmission line.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The utility model of the vibration monitoring device for the bridge position of an upper-supported arch bridge uses an acceleration sensor to monitor the vibration of the bridge position of the upper-supported arch bridge. Through the adaptive fitting effect of the support plate and the curved surface at the bottom of the upper-supported arch bridge body and the solidification effect of the concrete slurry inside the installation box, it ensures a fully rigid connection and improves the efficiency of the rigid connection, thereby facilitating the rapid and high-quality monitoring and operation of the acceleration sensor.

[0014] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In the attached figure:

[0016] Figure 1 This is a schematic diagram of the overall appearance structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the rigid connection component structure of the present utility model;

[0018] Figure 3 This is a schematic diagram of the winding assembly structure of the present utility model;

[0019] Figure 4 This is a schematic diagram of the rigid connection assembly of the present invention before use;

[0020] Figure 5 This is a schematic diagram of the rigid connection component of the present invention when in use.

[0021] In the figure: 101 - top-supported arch bridge body; 102 - acceleration sensor; 103 - transmission line; 201 - installation box; 202 - support plate; 203 - rubber sleeve; 204 - connecting ear; 301 - injection port; 302 - plug; 401 - winding roller; 402 - baffle; 403 - slot. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0023] like Figures 1 to 5As shown, a bridge position vibration monitoring device for a top-deep arch bridge comprises an acceleration sensor 102 for vibration monitoring arranged below the top-deep arch bridge body 101, a transmission line 103 for monitoring information transmission is provided on the acceleration sensor 102, and a rigid connection component for rigid connection during the monitoring process is provided between the top-deep arch bridge body 101 and the acceleration sensor 102, the rigid connection component comprises a mounting box 201, the acceleration sensor 102 is detachably mounted on the lower end of the mounting box 201 by bolts, a support plate 202 for abutting against the top-deep arch bridge body 101 is provided above the mounting box 201, the support plate 202 and the mounting box 201 are connected and fixed by a rubber sleeve 203, an injection component for injecting concrete slurry into the mounting box 201 is provided on the mounting box 201, and a winding component for winding the transmission line 103 is provided at the lower end of the mounting box 201;

[0024] It should be noted here that: in the process of using the acceleration sensor 102 to monitor the vibration of the bridge position of the upper-supported arch bridge, the adaptive fitting effect of the support plate 202 and the curved surface at the bottom of the upper-supported arch bridge body 101 and the solidification effect of the concrete slurry inside the installation box 201 are used to ensure sufficient rigid connection and improve the efficiency of the rigid connection, thereby facilitating the rapid and high-quality monitoring and operation of the acceleration sensor 102.

[0025] The support plate 202 is made of stainless steel;

[0026] It should be noted here that the support plate 202 is made of stainless steel material, which facilitates the deformation operation after being subjected to force.

[0027] The injection assembly includes an injection port 301 provided on the mounting box 201, and a plug 302 for sealing is threadedly connected to the injection port 301;

[0028] It should be noted that concrete slurry can be injected into the interior of the installation box 201 through the injection port 301 . After the injection is completed, the injection port 301 is sealed by the plug 302 .

[0029] Two sets of connection ears 204 are fixed to the mounting box 201 to assist in the mounting and connection with the deck arch bridge body 101;

[0030] It should be noted here that the connection ears 204 facilitate the installation and fixation between the auxiliary installation box 201 and the upper-bearing arch bridge body 101.

[0031] The winding assembly includes a winding roller 401 fixed to the lower end of the mounting box 201, and a baffle 402 is fixed to the front end of the winding roller 401 for blocking the transmission line 103 after winding;

[0032] It should be noted here that the winding roller 401 facilitates the winding operation of the excess transmission line 103 , and the baffle 402 facilitates the blocking of the wound transmission line 103 .

[0033] The baffle 402 is provided with a slot 403 for limiting the position of the rolled transmission line 103;

[0034] It should be noted here that the locking slot 403 facilitates the positioning of the rolled-up transmission line 103 .

[0035] When using the acceleration sensor 102 to monitor the vibration of the deck arch bridge, the acceleration sensor 102 is first installed at the bottom of the installation box 201. After the installation is completed, the installation box 201 is pushed toward the designated position at the bottom of the deck arch bridge body 101. During the pushing process, the support plate 202 is abutted against the bottom of the deck arch bridge body 101.

[0036] After the installation box 201 is pushed, concrete slurry is injected into the installation box 201 through the injection port 301. During the grouting process, the pressure after the grouting inside the installation box 201 pushes the support plate 202 and the flexibility of the support plate 202, so that the support plate 202 is fully fitted with the bottom of the upper arch bridge body 101 (see Figure 5 ), further matching the curvature of the support plate 202 with the bottom of the upper arch bridge body 101, after the grouting is completed, after the concrete slurry inside the installation box 201 is fixed, it is installed and fixed to the bottom of the upper arch bridge body 101 through the connecting ear 204. After the installation is completed, the vibration of the upper arch bridge position is monitored by the acceleration sensor 102, and during the entire monitoring process, the adaptive fitting effect of the support plate 202 and the curved surface at the bottom of the upper arch bridge body 101 and the fixing effect of the concrete slurry inside the installation box 201 ensure sufficient rigid connection while improving the efficiency of the rigid connection, which is convenient for the fast and high-quality monitoring and operation of the acceleration sensor 102.

Claims

1. A bridge position vibration monitoring device for a deck arch bridge, comprising: An acceleration sensor (102) for vibration monitoring is provided below the upper-decker arch bridge body (101), wherein a transmission line (103) for monitoring information transmission is provided on the acceleration sensor (102); It is characterized by further comprising: A rigid connection assembly for rigid connection during monitoring is provided between a top-bearing arch bridge body (101) and an acceleration sensor (102), the rigid connection assembly comprising a mounting box (201), the acceleration sensor (102) being detachably mounted on the lower end of the mounting box (201) by means of bolts, a support plate (202) for abutting against the top-bearing arch bridge body (101) being provided above the mounting box (201), the support plate (202) and the mounting box (201) being connected and fixed by means of a rubber sleeve (203), an injection assembly for injecting concrete slurry into the interior of the mounting box (201) being provided on the mounting box (201), and a reeling assembly for reeling in a transmission line (103) being provided at the lower end of the mounting box (201).

2. The device for monitoring the vibration of a deck arch bridge according to claim 1, characterized in that: The support plate (202) is made of stainless steel.

3. The device for monitoring vibration of a deck arch bridge according to claim 1, characterized in that: The injection assembly comprises an injection port (301) provided on the installation box (201), and a plug (302) for sealing is threadedly connected to the injection port (301).

4. The device for monitoring vibration of a deck arch bridge according to claim 1, characterized in that: The two groups of connection ears (204) for assisting the installation and connection with the upper-bearing arch bridge body (101) are fixed to the installation box (201).

5. The device for monitoring vibration of a deck arch bridge according to claim 1, characterized in that: The winding assembly comprises a winding roller (401) fixed at the lower end of the mounting box (201), and a baffle (402) for blocking the transmission line (103) after winding is fixed at the front end of the winding roller (401).

6. The device for monitoring vibration of a deck arch bridge according to claim 5, characterized in that: The baffle (402) is provided with a clamping slot (403) for clamping and limiting the rolled transmission line (103).

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