Intelligent monitoring friction pendulum support

Abstract

The utility model provides an intelligent monitoring friction pendulum support, and relates to the technical field of building shock insulation devices, the intelligent monitoring friction pendulum support specifically comprises a connecting assembly, a friction pendulum assembly and a measuring device, the connecting assembly comprises a first connecting plate and a second connecting plate which are arranged in parallel at an interval in the vertical direction, and the second connecting plate is located above the first connecting plate and used for bearing; the friction pendulum assembly is arranged on the first connecting plate and located between the first connecting plate and the second connecting plate so as to support the second connecting plate. The measuring device is arranged on the connecting assembly and comprises a vertical load measuring assembly and a horizontal load measuring assembly, the vertical load measuring assembly is used for measuring the pressure borne by the second connecting plate, the horizontal load measuring assembly is used for measuring the load of the second connecting plate in the horizontal direction, and the vertical load and the horizontal load can be obtained without disassembly. And the real-time performance and state of the intelligent monitoring friction pendulum support can be obtained through calculation.

Description

TECHNICAL FIELD

[0001] The utility model relates to building shock insulation device technical field, specifically, it relates to a kind of intelligent monitoring friction pendulum bearing. BACKGROUND

[0002] Friction pendulum bearing, as an important component of seismic mitigation technology, can significantly reduce the energy of earthquake transmitted to structure through friction energy dissipation and sliding displacement, and is widely used in bridges and high-rise buildings. However, the traditional bearing lacks real-time monitoring capability for key mechanical parameters (such as vertical load, sliding displacement, etc.). Under the action of earthquake, these mechanical parameters directly affect the seismic mitigation effect of the bearing and the safety of the structure.

[0003] However, the traditional friction pendulum bearing cannot obtain key mechanical parameters in real time during use, and needs to rely on manual disassembly and inspection to evaluate the working state and seismic mitigation effect of the bearing, which is low in efficiency and easy to miss hidden dangers. Moreover, due to the influence of environmental loads (such as wind, temperature difference, traffic load) on the bearing for a long time, there is a lack of continuous monitoring means for performance change, which is difficult to meet the needs of modern structural health monitoring and safety evaluation. SUMMARY

[0004] The utility model aims at providing a kind of intelligent monitoring friction pendulum bearing to alleviate the technical problems of relying on manual disassembly and inspection to evaluate the working state and seismic mitigation effect of the bearing in prior art, which is low in efficiency, easy to miss hidden dangers, and lacks continuous monitoring means.

[0005] The utility model provides a kind of intelligent monitoring friction pendulum bearing, including connecting assembly, friction pendulum assembly and measuring device, connecting assembly includes the first connecting plate and the second connecting plate that are spaced apart and arranged in parallel along the vertical direction, the second connecting plate is located above the first connecting plate and is used to bear;Friction pendulum assembly is located at the first connecting plate and is located between the first connecting plate and the second connecting plate to support the second connecting plate;Measuring device is located at the connecting assembly, and includes vertical load measuring assembly and horizontal load measuring assembly, the vertical load measuring assembly is used to measure the pressure borne by the second connecting plate, and the horizontal load measuring assembly is used to measure the load load of the second connecting plate in horizontal direction.

[0006] Further, the horizontal load measuring assembly includes a horizontal pressure sensor and a spiral spring; the horizontal pressure sensor has a plurality of first horizontal sensors and second horizontal sensors, the first horizontal sensor is arranged on the first connecting plate, the second horizontal sensor is arranged on the second connecting plate, and the measurement ends of the first horizontal sensor and the second horizontal sensor are arranged opposite to each other; the measurement ends of the first horizontal sensor and the second horizontal sensor are connected to the ends of the spiral spring, and the spiral spring is arranged in parallel with the first connecting plate.

[0007] Further, one of the first horizontal sensor, one of the second horizontal sensor and one of the coil spring form a measuring unit; the measuring units are multiple and arranged along the circumference of the friction pendulum assembly, and the multiple measuring units enclose the friction pendulum assembly.

[0008] Further, the measuring units are four; the four measuring units are arranged in a rectangle.

[0009] Further, the horizontal pressure sensor is a ceramic pressure sensor.

[0010] Further, the intelligent monitoring friction pendulum support further comprises a control unit; the control unit is in communication connection with the measuring device in the intelligent monitoring friction pendulum support to receive real-time data of the vertical load measuring assembly and the horizontal pressure sensor.

[0011] Further, the control unit is arranged between the first connecting plate and the second connecting plate; the control unit is multiple and comprises a first acquisition unit and a second acquisition unit; the first acquisition unit is arranged on the first connecting plate and spaced apart from the second connecting plate, and the first horizontal sensor is arranged on the first acquisition unit; the second acquisition unit is arranged on the second connecting plate and spaced apart from the first connecting plate, and the second horizontal sensor is arranged on the second acquisition unit.

[0012] Further, the vertical load measuring assembly comprises a weight sensor; the weight sensors are two and arranged between the friction pendulum assembly and the first connecting plate and between the friction pendulum assembly and the second connecting plate respectively.

[0013] Further, the friction pendulum assembly comprises an upper sliding plate, a sliding block and a lower sliding plate arranged in sequence from top to bottom; the upper sliding plate and the sliding block and the lower sliding plate and the sliding block are in sliding fit; the two weight sensors are arranged between the first connecting plate and the lower sliding plate and between the second connecting plate and the lower sliding plate respectively.

[0014] Further, the surface of the upper sliding plate and the sliding block, the surface of the lower sliding plate and the sliding block and the surface of the sliding block are all provided with a polytetrafluoroethylene layer.

[0015] Beneficial effects:

[0016] The utility model discloses a vertical load and horizontal load of intelligent monitoring friction pendulum support are obtained, and the real -time performance and state of intelligent monitoring friction pendulum support are known through the mechanics model (such as F=mu W+WD / R) calculation, and the real -time monitoring of vertical load and horizontal load is realized, the working state of support is accurately reflected, and after the vertical load and horizontal load are obtained, the real -time performance and state of intelligent monitoring friction pendulum support are known through the mechanics model (such as F=mu W+WD / R) calculation, and the structural performance degradation analysis and preventive maintenance are supported, thereby meeting the demand of modern structure health monitoring and safety evaluation. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the drawings needed to be used in the specific embodiment or the prior art description will be briefly introduced as follows, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0018] Figure 1 The utility model provides the three -dimensional structure schematic diagram of intelligent monitoring friction pendulum support for embodiment of the utility model;

[0019] Figure 2 The utility model provides the side view structure schematic diagram of intelligent monitoring friction pendulum support for embodiment of the utility model;

[0020] Figure 3 The utility model provides the side view structure schematic diagram of intelligent monitoring friction pendulum support for embodiment of the utility model;

[0021] Figure 4 The utility model provides the side view structure schematic diagram of intelligent monitoring friction pendulum support for embodiment of the utility model.

[0022] Icon:

[0023] 1-second connecting plate;2-first connecting plate;3-upper slide plate;4-lower slide plate;5-control unit;6-horizontal pressure sensor;7-weight sensor;8-spiral spring;9-wire;10-data interface;11-friction pendulum assembly. DETAILED DESCRIPTION

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0028] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0029] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0031] See Figures 1 to 4 The intelligent monitoring friction pendulum support provided in this embodiment includes a connecting component, a friction pendulum component 11, and a measuring device.

[0032] The connecting assembly includes a first connecting plate 2 and a second connecting plate 1 arranged vertically at intervals and parallel to each other. The second connecting plate 1 is located above the first connecting plate 2 and is used for load bearing. A friction pendulum assembly 11 is disposed on the first connecting plate 2 and located between the first connecting plate 2 and the second connecting plate 1 to support the second connecting plate 1. A measuring device is disposed on the connecting assembly and includes a vertical load measuring component and a horizontal load measuring component. The vertical load measuring component is used to measure the pressure borne on the second connecting plate 1, and the horizontal load measuring component is used to measure the horizontal load on the second connecting plate 1.

[0033] The main support structure consists of the first connecting plate 2, the friction pendulum assembly 11, and the second connecting plate 1. Specifically, in this embodiment, the second connecting plate 1 is a load-bearing component. The vertical load measuring assembly and the horizontal load measuring assembly can respectively measure the vertical pressure and horizontal load of the second connecting plate 1. Without disassembling the support, the real-time vertical and horizontal loads borne by the intelligent monitoring friction pendulum support can be obtained, improving operation and maintenance efficiency while also realizing real-time monitoring of vertical and horizontal loads, accurately reflecting the working status of the support.

[0034] Furthermore, after obtaining the vertical and horizontal loads, the real-time performance and status of the intelligent monitoring friction pendulum support can be calculated through a mechanical model to support structural performance degradation analysis and preventive maintenance, thereby meeting the needs of modern structural health monitoring and safety assessment.

[0035] In this embodiment, the horizontal load measuring assembly includes a horizontal pressure sensor 6 and a helical spring 8. The horizontal pressure sensor 6 has multiple components, including a first horizontal sensor and a second horizontal sensor. The first horizontal sensor is disposed on a first connecting plate 2, and the second horizontal sensor is disposed on a second connecting plate 1. The measuring ends of the first and second horizontal sensors are positioned opposite each other. The two ends of the helical spring 8 are respectively connected to the measuring ends of the first and second horizontal sensors, and the helical spring 8 is arranged parallel to the first connecting plate 2.

[0036] In this embodiment, the two ends of the helical spring 8 are connected to the first horizontal sensor and the second sensor, respectively. When displacement occurs between the first connecting plate 2 and the second connecting plate 1, the displacement can be calculated by the tensile deformation of the helical spring 8, and the horizontal residual deformation can be calculated based on the horizontal load measured by the first horizontal sensor and the second horizontal sensor.

[0037] In this embodiment, a first horizontal sensor, a second horizontal sensor, and a helical spring 8 form a measuring unit. Multiple measuring units are arranged circumferentially around the friction pendulum assembly 11, and these multiple measuring units enclose the friction pendulum assembly 11.

[0038] Specifically, the measurement unit in this embodiment consists of a pair of horizontal sensors and a helical spring 8. Multiple measurement units are distributed circumferentially along the friction pendulum assembly 11 to ensure the balance and accuracy of horizontal load measurement in multiple directions.

[0039] In this embodiment, there are four measurement units. The four measurement units are arranged in a rectangular shape.

[0040] The four measurement units form two sets of orthogonal measurement baselines. The four measurement units are arranged in a rectangle (the four measurement units are located at 0°, 90°, 180° and 270° respectively) to form a measurement coordinate system, so as to facilitate data collection and simplify data processing.

[0041] In this embodiment, the horizontal pressure sensor 6 is a ceramic pressure sensor.

[0042] In this embodiment, the horizontal pressure sensor 6 is specifically a ceramic pressure sensor. Ceramic pressure sensors are characterized by high sensitivity and strong anti-interference capabilities, making them suitable for long-term monitoring under complex working conditions.

[0043] In this embodiment, the intelligent monitoring friction pendulum support also includes a control unit 5. The control unit 5 is communicatively connected to the measuring device in the intelligent monitoring friction pendulum support to receive real-time data from the vertical load measuring component and the horizontal pressure sensor 6.

[0044] The control unit 5 can be a wireless control unit or a wired control unit. The control unit 5 is connected to the first horizontal sensor, the second horizontal sensor and the vertical load measuring component to receive real-time data from the first horizontal sensor, the second horizontal sensor and the vertical load measuring component.

[0045] Furthermore, in this embodiment, the control unit 5 can synchronously collect and process data from the first horizontal sensor, the second horizontal sensor, and the vertical load measurement component, thereby constructing a real-time monitoring system and realizing data fusion and analysis.

[0046] In this embodiment, the control unit 5 is disposed between the first connecting plate 2 and the second connecting plate 1. The control unit 5 has multiple units, including a first acquisition unit and a second acquisition unit. The first acquisition unit is disposed on the first connecting plate 2 and spaced apart from the second connecting plate 1, and a first level sensor is disposed on the first acquisition unit. The second acquisition unit is disposed on the second connecting plate 1 and spaced apart from the first connecting plate 2, and a second level sensor is disposed on the second acquisition unit.

[0047] Combination Figure 1 , Figure 2 and Figure 3 In this embodiment, two symmetrically arranged first acquisition units are provided on the bottom surface of the first connecting plate 2, and the two first acquisition units are symmetrically arranged to balance the weight. Correspondingly, two symmetrically arranged second acquisition units are provided on the top surface of the second connecting plate 1, and the two first acquisition units and the two second acquisition units are spaced apart and distributed in a rectangular pattern.

[0048] Furthermore, in this embodiment, the first horizontal sensor is disposed on two adjacent surfaces of the first acquisition unit, and the second horizontal sensor is disposed on two adjacent surfaces of the second acquisition unit. The positions of the first horizontal sensor on the first acquisition unit and the second horizontal sensor on the second acquisition unit are opposite to each other and connected by a helical spring 8, thereby realizing the measurement of the tensile force of the helical spring 8.

[0049] Specifically, in this embodiment, there are four first level sensors, and each first acquisition unit is provided with two first level sensors. Similarly, in this embodiment, there are four second level sensors, and each second acquisition unit is provided with two second level sensors.

[0050] Furthermore, in this embodiment, the control unit 5 has a data interface 10. The data interface 10 is used to connect the wire 9 for data transmission.

[0051] In this embodiment, the data interface 10 is used to connect a data cable to transmit the data collected by the control unit 5 to a control terminal such as a computer. Furthermore, the wire 9 used in this embodiment is a bend-resistant shielded twisted-pair cable.

[0052] In this embodiment, the vertical load measuring component includes a weight sensor 7. There are two weight sensors 7, which are respectively located between the friction pendulum assembly 11 and the first connecting plate 2, and between the friction pendulum assembly 11 and the second connecting plate 1.

[0053] Specifically, in this embodiment, the weight sensor 7 is a vertical pressure sensor. Two vertical pressure sensors are respectively set between the friction pendulum assembly 11 and the first connecting plate 2, and between the friction pendulum assembly 11 and the second connecting plate 1, which can accurately monitor the vertical load distribution of the support.

[0054] The symmetrical arrangement of the two vertical pressure sensors not only improves measurement accuracy but also allows for the detection of anomalies through data comparison. If an earthquake causes the intelligent monitoring friction pendulum support to tilt, the difference in readings from the two vertical pressure sensors can reflect the off-center loading state of the intelligent monitoring friction pendulum support, providing a basis for structural adjustments.

[0055] In this embodiment, the friction pendulum assembly 11 includes an upper sliding plate 3, a slider, and a lower sliding plate 4 arranged sequentially from top to bottom. The upper sliding plate 3 and the slider, and the lower sliding plate 4 and the slider, are in sliding engagement. Two weight sensors 7 are respectively located between the first connecting plate 2 and the lower sliding plate 4, and between the second connecting plate 1 and the lower sliding plate 4.

[0056] Specifically, the upper slide plate 3 and the slider, and the lower slide plate 4 and the slider achieve sliding contact through curved surface contact. When subjected to vibration, the slider slides along the curved surface of the upper slide plate 3 and the curved surface of the lower slide plate 4, and reduces the energy transmitted to the first connecting plate 2 through friction energy dissipation.

[0057] It should be noted that in this embodiment, the formula for calculating the horizontal force F of the intelligent monitoring friction pendulum support is: F=μW+WD / R. Where R is the radius of curvature of the upper sliding plate 3 and the lower sliding plate 4, W is the vertical load, i.e., the value measured by the vertical load measuring component, D is the relative displacement between the upper sliding plate 3, the lower sliding plate 4, and the slider, and μ is the coefficient of friction of the upper sliding plate 3 and the lower sliding plate 4.

[0058] Furthermore, in this embodiment, the formula for calculating the relative displacement D between the upper sliding plate 3, the lower sliding plate 4, and the slider is D = F H / K, where F H K is the horizontal load measured by the first or second horizontal sensor, and K is the elastic stiffness of the helical spring 8.

[0059] In this embodiment, after calculating F H After F, you can pass Calculate the horizontal residual deformation D of the friction support with monitoring function. r .

[0060] In this embodiment, the mating surface of the upper sliding plate 3 with the slider, the mating surface of the lower sliding plate 4 with the slider, and the surface of the slider are all provided with a polytetrafluoroethylene layer.

[0061] Polytetrafluoroethylene (PTFE) has very stable chemical properties, excellent weather resistance, and a low coefficient of friction, which can significantly reduce the sliding resistance between the slider and the upper and lower sliding plates 3 and 4, thereby ensuring that the friction pendulum assembly 11 can slide smoothly during an earthquake and avoid jamming or local stress concentration due to excessive friction.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A smart monitoring friction pendulum support, characterized in that, include: The connecting assembly includes a first connecting plate (2) and a second connecting plate (1) arranged vertically spaced and parallel to each other, wherein the second connecting plate (1) is located above the first connecting plate (2) and is used for bearing. A friction pendulum assembly (11) is disposed on the first connecting plate (2) and located between the first connecting plate (2) and the second connecting plate (1) to support the second connecting plate (1); A measuring device is provided on the connecting assembly and includes a vertical load measuring component and a horizontal load measuring component. The vertical load measuring component is used to measure the pressure borne on the second connecting plate (1), and the horizontal load measuring component is used to measure the load on the second connecting plate (1) in the horizontal direction.

2. The intelligent monitoring friction pendulum support according to claim 1, characterized in that, The horizontal load measuring assembly includes a horizontal pressure sensor (6) and a helical spring (8); The horizontal pressure sensor (6) has multiple components, including a first horizontal sensor and a second horizontal sensor. The first horizontal sensor is disposed on the first connecting plate (2), and the second horizontal sensor is disposed on the second connecting plate (1). The measuring ends of the first horizontal sensor and the second horizontal sensor are arranged opposite to each other. The two ends of the helical spring (8) are respectively connected to the measuring end of the first horizontal sensor and the measuring end of the second horizontal sensor, and the helical spring (8) is arranged parallel to the first connecting plate (2).

3. The intelligent monitoring friction pendulum support according to claim 2, characterized in that, A first level sensor, a second level sensor, and a helical spring (8) form a measuring unit; The measuring units are multiple and arranged circumferentially along the friction pendulum assembly (11), and the multiple measuring units enclose the friction pendulum assembly (11).

4. The intelligent monitoring friction pendulum support according to claim 3, characterized in that, There are four measurement units; The four measurement units are arranged in a rectangular configuration.

5. The intelligent monitoring friction pendulum support according to claim 2, characterized in that, The horizontal pressure sensor (6) is a ceramic pressure sensor.

6. The intelligent monitoring friction pendulum support according to claim 2, characterized in that, The intelligent monitoring friction pendulum support also includes a control unit (5); The control unit (5) is communicatively connected to the measuring device in the intelligent monitoring friction pendulum support to receive real-time data from the vertical load measuring component and the horizontal pressure sensor (6).

7. The intelligent monitoring friction pendulum support according to claim 6, characterized in that, The control unit (5) is located between the first connecting plate (2) and the second connecting plate (1); The control unit (5) has multiple units and includes a first acquisition unit and a second acquisition unit; The first acquisition unit is disposed on the first connecting plate (2) and spaced apart from the second connecting plate (1), and the first horizontal sensor is disposed on the first acquisition unit; The second acquisition unit is disposed on the second connecting plate (1) and spaced apart from the first connecting plate (2), and the second horizontal sensor is disposed on the second acquisition unit.

8. The intelligent monitoring friction pendulum support according to claim 1, characterized in that, The vertical load measuring component includes a weight sensor (7); There are two weight sensors (7), which are respectively located between the friction pendulum assembly (11) and the first connecting plate (2), and between the friction pendulum assembly (11) and the second connecting plate (1).

9. The intelligent monitoring friction pendulum support according to claim 8, characterized in that, The friction pendulum assembly (11) includes: an upper sliding plate (3), a slider, and a lower sliding plate (4) arranged sequentially from top to bottom; The upper sliding plate (3) and the slider, and the lower sliding plate (4) and the slider are in sliding fit; The two weight sensors (7) are respectively located between the first connecting plate (2) and the lower sliding plate (4), and between the second connecting plate (1) and the lower sliding plate (4).

10. The intelligent monitoring friction pendulum support according to claim 9, characterized in that, The mating surface of the upper sliding plate (3) with the slider, the mating surface of the lower sliding plate (4) with the slider, and the surface of the slider are all provided with a polytetrafluoroethylene layer.

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