Multifunctional real-time monitoring base

Abstract

The utility model relates to bridge monitoring technical field, concretely discloses a kind of multifunctional real-time monitoring pedestal, including upper and lower arranged upper base plate and lower base plate, shock ring and detection component;The opposite side of upper base plate and lower base plate is respectively provided with the bearing part of conical frustum, two bearing parts coaxially are embedded in shock ring, and vertical gap is left between two bearing parts;The contact surface between two bearing parts and shock ring forms included angle α;Detection component includes the displacement sensor of several that is distributed in the outer circumferential side of shock ring along ring direction interval, and each displacement sensor is electrically connected with edge processor;Displacement sensor can real-time detect the distance value between it and shock ring;Edge processor can receive the distance value detected by each displacement sensor, and based on received distance value and included angle α carry out edge computing processing, obtain the vertical load and vertical displacement of bridge support.The multifunctional real-time monitoring pedestal has vertical load and vertical displacement real-time monitoring function.

Description

Technical Field

[0001] This utility model relates to the field of bridge monitoring technology, and in particular to a multifunctional real-time monitoring base. Background Technology

[0002] Bridge bearings are crucial structural components connecting the superstructure and substructure of a bridge, accommodating the reactions and deformations (displacement and rotation) of the superstructure. The stress state of bridge bearings directly affects the overall performance of the bridge structure. Traditional bridge bearing monitoring methods often rely on periodic manual inspections and limited data acquisition means, which are not only inefficient and costly but also difficult to achieve real-time monitoring of the structural condition, especially in extreme environments or inaccessible locations. Current research focuses on the measurable force function of bridge bearings to monitor their stress state during use, read vertical loads, accurately understand the internal force distribution of the structure, and verify the reliability of bridge design theories and the rationality of design methods.

[0003] In existing technologies, bridge bearing force measurement methods generally include built-in and separate types. Built-in bridge bearings are typically large, complex to install, difficult to maintain, suffer from severe long-term drift, and can easily affect the performance of the original structure; moreover, sensor replacement is difficult, and monitoring accuracy is limited. For separate force measurement methods, patent publication number CN217758317U discloses a force-measuring bearing with a sealed oil cavity formed between the lower bearing plate and the base. A three-way oil filling pipe is installed on the base. The first pipe of this three-way oil filling pipe is connected to the sealed oil cavity, the second pipe is connected to a digital pressure transmitter, and the third pipe is connected to a one-way overflow valve. When the bearing is subjected to force, the digital pressure transmitter displays the pressure reading. Multiplying this pressure reading by the area of ​​the bottom surface of the lower bearing plate yields the vertical load of the bearing. However, this separate force-measuring bearing can only achieve real-time vertical force measurement and cannot achieve real-time monitoring of vertical displacement. Summary of the Invention

[0004] The purpose of this invention is to propose a multifunctional real-time monitoring base that has the function of real-time monitoring of vertical load and vertical displacement.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A multifunctional real-time monitoring base includes an upper base plate and a lower base plate arranged vertically, a shock-absorbing ring located between the upper base plate and the lower base plate, and a detection component disposed on the lower base plate;

[0007] The upper base plate and the lower base plate are respectively provided with frustoconical bearing parts on opposite sides. The two bearing parts are coaxially embedded in the damping ring, and a vertical gap is left between the two bearing parts. An included angle α is formed between the contact surfaces of the two bearing parts and the damping ring.

[0008] The detection component includes a plurality of displacement sensors distributed circumferentially at intervals on the outer periphery of the damping ring, each displacement sensor being electrically connected to an edge processor; the displacement sensors are capable of detecting the distance between themselves and the damping ring in real time; the edge processor is capable of receiving the distance values ​​detected by each displacement sensor and performing edge calculation processing based on the received distance values ​​and the included angle α to obtain the vertical load and vertical displacement of the bridge support.

[0009] Furthermore, the two bearing portions are symmetrically arranged vertically within the damping ring, and the outer diameter of the bearing portions gradually decreases toward the center of the damping ring.

[0010] Furthermore, the detection point of each displacement sensor is located on the radial center plane of the damping ring.

[0011] Furthermore, at least four displacement sensors are provided, and each displacement sensor is symmetrically arranged with respect to the center of the damping ring.

[0012] Furthermore, one of the supporting parts is integrally formed with the upper base plate, and the other supporting part is integrally formed with the lower base plate.

[0013] Furthermore, the lower base plate is provided with a number of lower anchor bolts.

[0014] Furthermore, the upper base plate is provided with several upper connecting holes.

[0015] Furthermore, the edge processor is connected to an alarm module.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. This application uses a damping ring to achieve friction energy dissipation and vibration reduction functions. By monitoring the diameter change of the damping ring and using an edge processor for edge computing, the vertical load and vertical displacement of the bridge support can be obtained.

[0018] 2. It adopts a split structure, which facilitates prefabrication and assembly and makes construction convenient.

[0019] 3. The displacement sensor is easy to install and calibrate, with high resolution and high monitoring accuracy. Attached Figure Description

[0020] Figure 1This is a structural schematic diagram of a multifunctional real-time monitoring base provided by this utility model.

[0021] Figure 2 This is a top view of a multifunctional real-time monitoring base provided by this utility model.

[0022] Figure 3 This is a cross-sectional view of a multifunctional real-time monitoring base provided by this utility model.

[0023] Figure 4 This is a cross-sectional view of a multifunctional real-time monitoring base provided by this utility model from another angle.

[0024] Figure 5 This is a structural diagram of a multifunctional real-time monitoring base provided by this utility model in its first state.

[0025] Figure 6 This is a structural diagram of a multifunctional real-time monitoring base provided by this utility model in the second state. Detailed Implementation

[0026] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0027] like Figures 1 to 6 As shown, a multifunctional real-time monitoring base includes an upper base plate 1 and a lower base plate 2 arranged vertically, a shock-absorbing ring 3 located between the upper base plate 1 and the lower base plate 2, and a detection assembly disposed on the lower base plate 2. The upper base plate 1 and the lower base plate 2 each have a frustoconical bearing portion 11 on opposite sides, which is coaxially embedded within the shock-absorbing ring 3, with a vertical gap between them. An angle α is formed between the contact surfaces 21 of the two bearing portions 11 and the shock-absorbing ring 3. The detection assembly includes several displacement sensors 4 spaced circumferentially on the outer periphery of the shock-absorbing ring 3 and an edge processor 7 electrically connected to each displacement sensor 4. The displacement sensors 4 can detect the distance between themselves and the shock-absorbing ring 3 in real time. The edge processor 7 can receive the distance values ​​detected by each displacement sensor 4 and perform edge calculation processing based on the received distance values ​​and the angle α to obtain the vertical load and vertical displacement of the bridge support.

[0028] Specifically, in this embodiment, in the initial state, a vertical gap is provided between the two bearing parts 11; when the multifunctional real-time monitoring base of this application bears a vertical load, the vertical force is transmitted to the damping ring 3 through the upper base plate 1 via the first contact surface 21, and then transmitted to the lower base plate 2 through the damping ring 3 via the second contact surface 21; during the force transmission process, as the vertical load increases, the vertical gap between the two bearing parts 11 gradually decreases, while the diameter of the damping ring 3 gradually increases, and the two contact surfaces 21 simultaneously undergo frictional sliding, playing the role of vibration reduction and energy dissipation.

[0029] When subjected to vertical loads, the outer diameter of the damping ring 3 changes linearly within the design range. The diameter data of the damping ring 3 is monitored in real time by the displacement sensor 4, and the monitoring data is transmitted to the edge processor 7 for calculation and processing through the sensor connection line 6. With the initial size of the damping ring 3 clearly defined and the material modulus determined, the vertical load and vertical displacement borne by the multifunctional real-time monitoring base of this application can be obtained in real time.

[0030] In this embodiment, one support part 11 is integrally formed with the upper base plate 1, and the other support part 11 is integrally formed with the lower base plate 2. The multifunctional real-time monitoring base of this application adopts a split structure, which facilitates prefabrication and assembly and makes construction convenient.

[0031] As a preferred embodiment of this application, the two bearing portions 11 are symmetrically arranged inside the damping ring 3, and the outer diameter of the bearing portions 11 gradually decreases toward the center of the damping ring 3.

[0032] As a preferred embodiment of this application, the detection points of each displacement sensor 4 are located on the radial center surface of the damping ring 3.

[0033] In this embodiment, at least four displacement sensors 4 are provided, and each displacement sensor 4 is symmetrically arranged with respect to the center of the damping ring 3. These sensors are easy to install and calibrate, have high resolution, and high monitoring accuracy.

[0034] In this embodiment, the upper base plate 1 has several upper connecting holes 8 to facilitate the fixed connection of the multifunctional real-time monitoring base of this application to the bridge bearing body. The lower base plate 2 is provided with several lower anchor bolts 9, which can be used to fix the multifunctional real-time monitoring base of this application to the lower structure.

[0035] In this embodiment, the edge processor 7 is connected to an alarm module; when the acquired vertical load or vertical displacement exceeds a preset value, the alarm module issues an alarm to warn the user.

[0036] like Figure 5 and 6As shown, this utility model discloses a multifunctional real-time monitoring base with an initial height of H. The initial distance between the base and the vibration damping ring 3 is measured by the displacement sensor as S. When subjected to a vertical load, the actual distance S becomes S-Δ. By using the edge processor 7 to integrate the Δ values ​​of all displacement sensors 4, the diameter change rate ε of the vibration damping ring 3 can be calculated. D According to the diameter change rate ε D The strain value of the damping ring 3 can be obtained. Hooke's law can be used to obtain the circumferential internal force of the damping ring 3. Then, based on the included angle α, the vertical load and vertical displacement h of the support can be calculated.

[0037] Specifically, we can assume that the initial diameter of the damping ring is D; the diameter change rate ε of the damping ring 3 is... D The calculation formula is as follows:

[0038]

[0039] In this formula, N represents the number of sensors placed around the perimeter.

[0040] In this embodiment, the strain value of the damping ring 3 is equal to the rate of change ε ​​of the diameter of the damping ring 3. D .

[0041] The formula for calculating the average vertical displacement of the support is as follows:

[0042]

[0043] The formula for calculating the vertical load of the support is as follows:

[0044] Vertical load of support

[0045] In this formula, E represents the elastic modulus of the damping ring 3, and A represents the cross-sectional area of ​​the damping ring 3.

[0046] This utility model discloses a multifunctional real-time monitoring base. It employs a damping ring 3 to achieve frictional energy dissipation and vibration reduction. By monitoring the diameter change of the damping ring 3 and using an edge processor 7 for edge computing processing, the vertical load and vertical displacement of the bridge bearing are obtained. This multifunctional real-time monitoring base has vertical vibration reduction and energy dissipation functions, effectively controlling undesirable vertical vibrations and impacts on the structure. It features a simple construction, convenient processing, and a lightweight structure, which helps ensure reliable force transmission, construction quality, and good economic efficiency.

[0047] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. A multifunctional real-time monitoring base, characterized in that, It includes an upper base plate (1) and a lower base plate (2) arranged vertically, a shock-absorbing ring (3) located between the upper base plate (1) and the lower base plate (2), and a detection component arranged on the lower base plate (2); The upper base plate (1) and the lower base plate (2) are respectively provided with frustoconical bearing parts (11) on opposite sides. The two bearing parts (11) are coaxially embedded in the damping ring (3) and a vertical gap is left between the two bearing parts (11). An included angle α is formed between the contact surfaces (21) of the two bearing parts (11) and the damping ring (3). The detection component includes a plurality of displacement sensors (4) distributed circumferentially at intervals on the outer periphery of the damping ring (3), and each displacement sensor (4) is electrically connected to an edge processor (7); the displacement sensor (4) can detect the distance value between itself and the damping ring (3) in real time; the edge processor (7) can receive the distance value detected by each displacement sensor (4), and perform edge calculation processing based on the received distance value and the included angle α to obtain the vertical load and vertical displacement of the bridge support.

2. The multifunctional real-time monitoring base according to claim 1, characterized in that, The two bearing portions (11) are symmetrically arranged inside the damping ring (3), and the outer diameter of the bearing portion (11) gradually decreases toward the center of the damping ring (3).

3. The multifunctional real-time monitoring base according to claim 2, characterized in that, The detection points of each displacement sensor (4) are located on the radial center surface of the damping ring (3).

4. A multifunctional real-time monitoring base according to claim 1 or 3, characterized in that, At least four displacement sensors (4) are provided, and each displacement sensor (4) is arranged symmetrically with respect to the center of the damping ring (3).

5. A multifunctional real-time monitoring base according to claim 1, characterized in that, One of the supporting parts (11) is integrally formed with the upper base plate (1), and the other supporting part (11) is integrally formed with the lower base plate (2).

6. A multifunctional real-time monitoring base according to claim 1, characterized in that, The lower base plate (2) is provided with several lower anchor bolts (9).

7. A multifunctional real-time monitoring base according to claim 1, characterized in that, The upper base plate (1) has several upper connecting holes (8).

8. A multifunctional real-time monitoring base according to claim 1, characterized in that, The edge processor (7) is connected to an alarm module.

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