CN106400682B - Force-measuring type plate rubber support based on optical fiber deformation sensor - Google Patents
Force-measuring type plate rubber support based on optical fiber deformation sensor Download PDFInfo
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- CN106400682B CN106400682B CN201610975320.8A CN201610975320A CN106400682B CN 106400682 B CN106400682 B CN 106400682B CN 201610975320 A CN201610975320 A CN 201610975320A CN 106400682 B CN106400682 B CN 106400682B
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 56
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 27
- 239000010959 steel Substances 0.000 claims abstract description 27
- 238000012360 testing method Methods 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 11
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 abstract description 7
- 238000013461 design Methods 0.000 description 4
- 238000007689 inspection Methods 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
- E01D19/041—Elastomeric bearings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention relates to an intelligent force-measuring plate-type rubber support based on an optical fiber deformation sensor, which comprises a plate-type rubber support body and is characterized in that the optical fiber deformation sensor is arranged in the plate-type rubber support body, a inhaul cable is arranged in the plate-type rubber support body, one end of the inhaul cable is connected with the optical fiber deformation sensor, the other end of the inhaul cable is fixed with a steel plate in the plate-type rubber support body, and the deformation sensor is adapted to deformation characteristics of the support under constant load and active load stress conditions. By adopting the intelligent force-measuring plate type rubber support, sudden and accumulated damage of the support can be timely found and recorded, the service condition of the support is assessed, and reasonable treatment measures are timely taken. By monitoring the stress condition of the support, the bridge traffic load condition can be indirectly reflected, and the overloaded vehicle can be timely found.
Description
Technical Field
The invention relates to the field of bridge support products, in particular to an intelligent force measuring plate type rubber support based on an optical fiber deformation sensor.
Background
The bridge support is an important component for connecting the upper structure and the lower structure of the bridge, but is a component which is easy to damage but not easy to repair in the bridge structure, and the bridge support needs to be replaced after being damaged, so that the replacement construction can influence or interrupt traffic, and economic loss and adverse social influence are easy to cause.
Along with the change of bridge traffic load and environmental conditions, the stress of the support has larger fluctuation, and taking a rubber support as an example, long-term bias can cause the defects of local rubber cracking failure, rubber body extrusion and the like of the support, and can also cause insufficient stress and even void of the support. In addition, the overload phenomenon of the load-carrying vehicle is a troublesome problem commonly faced by the road traffic in China at present. The overload of the bridge caused by overload of the vehicle easily causes various types of damages to the support, thereby causing the change of the integral stress state of the structure and causing more and larger safety problems. This risk is particularly pronounced on single pier curvilinear bridges.
In the traditional tube culture mode, the generation and accumulation process of the support damage cannot be found and focused in time, and disease accumulation is easy to occur. Currently, the detection of bridge supports is mainly performed in a manual inspection mode, and the working state of the supports is inspected in a visual inspection mode, a simple measurement mode and the like. However, due to factors such as large height of the bridge pier, complex structure and auxiliary facilities, the inspection work often faces a plurality of problems and difficulties, and the inspection frequency and inspection effect of the bridge support are not ideal. Therefore, the damage to the bridge support cannot be found in time, the support cannot be replaced in time, and potential safety hazards of the bridge structure caused by the damage cannot be eliminated.
Disclosure of Invention
The invention designs an intelligent force-measuring plate type rubber support based on an optical fiber deformation sensor, which can realize real-time monitoring of the stress condition of the support.
In order to achieve the above object, the technical scheme of the present invention is as follows: the utility model provides an intelligence dynamometry plate rubber support based on optical fiber deformation sensor, includes plate rubber support body, and its characterized in that is provided with optical fiber deformation sensor in plate rubber support body, this internal stay cable that sets up of plate rubber support, and stay cable one end links to each other with optical fiber deformation sensor, and the other end is fixed with plate rubber support body internal steel plate, adapts to the deformation characteristic under support constant load and the live load atress condition through deformation sensor.
According to the preferred embodiment of the invention, a plurality of optical fiber deformation sensors are arranged in the plate-type rubber support body, a communication optical fiber is arranged between two adjacent optical fiber deformation sensors, an optical fiber transmission interface is further arranged at the edge of the plate-type rubber support body, the optical fiber transmission interface is connected with the optical fiber deformation sensors or the communication optical fiber is connected with the deformation sensors through the optical fiber transmission interface and an external connection acquisition device, the stress condition of the support can be monitored in real time, and data is transmitted to a mobile phone or a computer terminal in real time through a cloud platform by means of online acquisition, so that the use condition of the support is monitored in time.
According to the preferred embodiment of the invention, the rubber support comprises a plurality of rubber layers which are arranged at intervals, steel plates are arranged between two adjacent rubber layers, a reserved sensor space is arranged in the rubber layer at the bottom of the rubber support, the reserved sensor space extends to the bottom of the steel plate adjacent to the rubber layer, a through hole is arranged above the reserved sensor space to the bottom of one layer of steel plate, a inhaul cable is arranged in the through hole, one end of the inhaul cable is connected with the deformation sensor, and the other end of the inhaul cable is fixed with the bottom of the layer of steel plate.
According to a preferred embodiment of the present invention, the through hole penetrates to the bottom of the uppermost steel plate, and the cable connects the deformation sensor and the uppermost steel plate.
According to the preferred embodiment of the invention, 4 deformation sensors are symmetrically arranged in the plate-type rubber support body, and the central connecting lines of the symmetrically arranged 2 deformation sensors are respectively arranged along the two main axial directions of the support.
According to the invention, the deformation of the deformation sensor is related to the deformation of the support through the inhaul cable, so that the deformation of the plate-type rubber support is measured. Furthermore, based on the deformation constitutive relation of the support, and by reference to test calibration, the corresponding relation between deformation and support stress can be established, and the support stress can be obtained. The external acquisition equipment is used for acquiring data of the deformation sensor, so that the stress condition of the support can be monitored in real time.
By adopting the intelligent force-measuring plate type rubber support, the stress condition of the support can be monitored in real time, sudden and accumulated damage of the support can be found and recorded in time, and the service condition of the support can be assessed. Further, the slightly damaged support can be timely and effectively repaired, and further expansion of diseases is avoided; taking corrective measures or replacing the emptying support in time; the support which is seriously damaged can be replaced in time, so that the influence on the overall safety of the structure is avoided, and the larger economic loss is avoided. By monitoring the stress condition of the support, the bridge traffic load condition can be indirectly reflected, and the overloaded vehicle can be timely found.
The invention is characterized in that: firstly, the design can measure the larger strain (under the action of constant load) of the plate rubber support and monitor the smaller strain (under the action of live load) of the plate rubber support. The invention can not only measure the vertical force borne by the support, but also adapt to the possible shearing displacement, rotation angle, inclination and even run-out of the support during use, and ensure that the force measuring device always keeps working normally before the support is damaged. Thirdly, the deformation sensor is connected with the external collector, so that the real-time collection of the stress condition of the support can be realized; in addition, the same multichannel collecting box can be used for collecting and managing the unified data of the plurality of force measuring supports. Fourth, through the online collection, data are transmitted to the cloud platform in a wireless mode, and then the data can be sent to clients such as mobile phones or computers, and real-time monitoring of the stress condition of the support is achieved. Fifthly, the intelligent force measuring function of the traditional plate-type rubber support is increased by the design scheme, the plate-type rubber support is suitable for all types of plate-type rubber supports, meets the actual requirements of engineering, and has more advantages and wide application prospects.
Drawings
Fig. 1 is a schematic structural diagram of an intelligent force-measuring plate rubber support according to an embodiment of the invention.
Fig. 2 is a partial cross-sectional view of an intelligent force-measuring plate rubber mount according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of on-line monitoring.
Detailed Description
The invention will now be described in detail with reference to the drawings and examples.
The stress characteristics of the plate-type rubber support are that the plate-type rubber support bears larger deformation generated by constant load of the upper structure of the bridge for a long time and bears smaller deformation generated by live load such as vehicle load for a short time (time-varying). Under the condition of bearing capacity of the support, the vertical strain can reach 10000-20000 mu epsilon. The common strain sensor is not suitable for the strain interval, and the stress monitoring device can adapt to the stress characteristic of the support through special design.
The technical scheme of the invention is as follows: the utility model provides an intelligence dynamometry plate rubber support based on optical fiber deformation sensor, includes plate rubber support body 1, the rubber support sets up the steel sheet including a plurality of rubber layer that the interval set up between two adjacent rubber layers, its characterized in that is provided with a plurality of reservation sensor space in the bottom rubber layer, just reserve sensor space and extend to the bottom steel sheet bottom that is located this rubber layer top and is adjacent with this rubber layer, set up optical fiber reservation passageway between two adjacent reservation sensor spaces, set up a wide range optical fiber deformation sensor 2 based on displacement meter test principle in every sensor reservation space, be connected through the intercommunication optic fibre 3 that sets up in optical fiber reservation passageway between a plurality of optical fiber deformation sensor 2, plate rubber support body edge still is provided with optical fiber transmission interface 4, optical fiber transmission interface and optical fiber deformation sensor or intercommunication optical fiber connection, optical fiber deformation sensor is cable type optical fiber deformation sensor, this internal setting up the cable, and cable links to each other with optical fiber deformation sensor 2 for deformation sensor 2 and bottom steel sheet contact, other end and plate rubber support internal fixing cable pass through the optical fiber deformation sensor that sets up in the optical fiber reservation passageway, and the real-time support is passed through the cable and is connected with the steel sheet deformation sensor, and the real-time can be measured the support through the inside the cable and is out of the deformation support. Because the deformation sensor is based on a displacement meter test principle, the relative displacement of two steel plates connected by a inhaul cable is directly tested, and the strain test carrier (fiber bragg grating, strain wire and the like) is not needed to be directly cooperated with rubber for deformation, the problem that the test carrier cannot adapt to the large deformation of the rubber is solved, and the rubber deformation under the constant load effect is accommodated in a large range; meanwhile, the test precision can reach 1% FS, and the test device has enough test precision for deformation of the support under the action of normal live load of the vehicle.
As shown in fig. 1, an intelligent force measuring plate rubber support based on an optical fiber deformation sensor comprises a plate rubber support body 1, and is characterized in that 4 reserved sensor spaces and arc-shaped optical fiber reserved channels for connecting the 4 reserved sensor spaces are arranged in the plate rubber support body 1, an optical fiber deformation sensor 2 is arranged in each sensor reserved space, the 4 optical fiber deformation sensors are connected through a communication optical fiber 3 arranged in the optical fiber reserved channel, an optical fiber transmission interface 4 is further arranged at the edge of the plate rubber support body, and the optical fiber transmission interface 4 is connected with the optical fiber deformation sensor 2 or the communication optical fiber 3, so that the 4 optical fiber deformation sensors can be connected with an external data acquisition box through the optical fiber transmission interface 4 to acquire data in real time. All the devices are built in the support, and the appearance of the support is consistent with that of a traditional support.
As shown in the figure, 4 deformation sensors 2 are symmetrically arranged in the plate-type rubber support body 1, and the central connecting lines of the symmetrical sensors in the figure are respectively arranged along the two main axial directions of the support.
As shown in fig. 2, the rubber support comprises a plurality of rubber layers 5 arranged at intervals, a steel plate 6 is arranged between two adjacent rubber layers 5, and a space is reserved in the rubber layer 5 at the bottom of the support and is used for accommodating and installing the deformation sensor 2. The reserved through holes 7 penetrate through to a certain layer of steel plate and can be used for installing the inhaul cables 8, and enough space is reserved in the through holes 7 so as to prevent the inhaul cables 8 from being damaged under the conditions of supporting seat shearing, rotation and the like. The deformation sensor b can be welded or bolted to the steel plate 6, and one end of the stay cable 8 is connected to the deformation sensor 2, while the other end is welded to the layer of steel plate. In this embodiment, the through hole 7 penetrates to the bottom of the uppermost steel plate, and the cable 8 connects the deformation sensor 2 and the uppermost steel plate. In the figure, 9 is the bottom surface of the support, and 10 is the top surface of the support.
As shown in fig. 3, the data acquisition box 10 is used for acquiring data of the intelligent force measuring support, sending the data to the cloud platform, analyzing and processing the data, and finally sending information required by a client to a client such as a mobile phone or a computer of the client. By adopting the intelligent force-measuring plate type rubber support, sudden and accumulated damage of the support can be timely found and recorded, the service condition of the support is assessed, and reasonable treatment measures are timely taken. By monitoring the stress condition of the support, the bridge traffic load condition can be indirectly reflected, and the overloaded vehicle can be timely found.
The invention can measure the large strain (under the action of constant load) of the plate rubber support and monitor the small strain (under the action of live load) of the plate rubber support, thereby realizing the real-time monitoring of the stress condition of the support.
Claims (2)
1. An intelligent force-measuring plate-type rubber support based on an optical fiber deformation sensor comprises a plate-type rubber support body, and is characterized in that a large-range optical fiber deformation sensor based on a displacement meter testing principle is arranged in the plate-type rubber support body, a inhaul cable is arranged in the plate-type rubber support body, one end of the inhaul cable is connected with the optical fiber deformation sensor, the other end of the inhaul cable is fixed with a steel plate in the plate-type rubber support body, and the deformation characteristics of the support under constant load and live load stress conditions are adapted through the deformation sensor; the rubber support comprises a plurality of rubber layers which are arranged at intervals, steel plates are arranged between two adjacent rubber layers, a reserved sensor space is arranged in the rubber layer at the bottom of the rubber support, a through hole is formed above the reserved sensor space until the bottom of one layer of steel plate, a guy cable is arranged in the through hole, one end of the guy cable is connected with a deformation sensor, the other end of the guy cable is fixed with the bottom of the layer of steel plate, the deformation sensor is connected with the steel plate in the support through the guy cable, the real-time deformation of the support is measured through the sensor, and further the real-time stress of the support can be indirectly measured, and because the deformation sensor is based on a displacement meter test principle, the relative displacement of the two steel plates connected with the guy cable is directly tested without directly and cooperatively deforming with the rubber by using a strain test carrier, so that the problem that the test carrier cannot adapt to large deformation of the rubber is solved, and the rubber deformation under the constant load is accommodated in a large range; meanwhile, the test precision can reach 1% FS, and the test precision is enough for deformation of the support under the action of normal vehicle live load; the plate-type rubber support body is internally provided with a plurality of optical fiber deformation sensors, a communication optical fiber is arranged between two adjacent optical fiber deformation sensors, the edge of the plate-type rubber support body is also provided with an optical fiber transmission interface, the optical fiber transmission interface is connected with the optical fiber deformation sensors or the communication optical fiber is connected with the deformation sensors through the optical fiber transmission interface and the external acquisition equipment, so that the stress condition of the support can be monitored in real time, data is transmitted in real time through a cloud platform by means of online acquisition, and the service condition of the support is monitored in time; the through hole penetrates to the bottom of the uppermost steel plate, and the inhaul cable is connected with the deformation sensor and the uppermost steel plate.
2. The intelligent force measuring plate type rubber support based on the optical fiber deformation sensor according to claim 1, wherein 4 deformation sensors are symmetrically arranged in the plate type rubber support body, and the central connecting lines of the symmetrically arranged 2 deformation sensors are respectively arranged along the two main axial directions of the support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610975320.8A CN106400682B (en) | 2016-11-07 | 2016-11-07 | Force-measuring type plate rubber support based on optical fiber deformation sensor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610975320.8A CN106400682B (en) | 2016-11-07 | 2016-11-07 | Force-measuring type plate rubber support based on optical fiber deformation sensor |
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| Publication Number | Publication Date |
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| CN106400682A CN106400682A (en) | 2017-02-15 |
| CN106400682B true CN106400682B (en) | 2024-05-03 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108277738B (en) * | 2018-01-25 | 2023-09-01 | 上海路博减振科技股份有限公司 | Intelligent lead rubber support |
| CN113624385A (en) * | 2021-09-17 | 2021-11-09 | 江苏平山交通设施有限公司 | Intelligent sensing device and method for bearing capacity of plate-type rubber support |
| CN113624384A (en) * | 2021-09-17 | 2021-11-09 | 江苏平山交通设施有限公司 | Intelligent sensing device and method for bearing capacity of basin-type rubber support |
| CN115266075B (en) * | 2022-09-26 | 2023-02-17 | 中交第一公路勘察设计研究院有限公司 | Bulging self-sensing plate type support, manufacturing method, monitoring system and monitoring method |
| CN115266076B (en) * | 2022-09-26 | 2023-01-20 | 中交第一公路勘察设计研究院有限公司 | Plate type support based on optical fiber sensing, monitoring system and mounting and monitoring method |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009047582A (en) * | 2007-08-21 | 2009-03-05 | Kawaguchi Metal Industries Co Ltd | Measuring method of vertical load on laminated rubber, and laminated rubber |
| CN102168403A (en) * | 2010-02-26 | 2011-08-31 | 同济大学 | Bridge rubber support system for wireless real-time monitoring |
| CN104153478A (en) * | 2014-08-12 | 2014-11-19 | 中国十七冶集团有限公司 | Intelligent multi-dimensional seismic mitigation and isolation support |
| CN203947407U (en) * | 2014-04-24 | 2014-11-19 | 柳州东方工程橡胶制品有限公司 | A kind of intelligent shock-isolation neoprene bearing |
| CN204570459U (en) * | 2015-03-10 | 2015-08-19 | 同济大学 | A kind of can the bridge cable shock-absorption basin-type rubber support system of wireless real-time monitoring |
| CN105755950A (en) * | 2015-12-31 | 2016-07-13 | 同济大学 | Intelligent optical-fiber inhaul-cable damping support system |
| CN205382403U (en) * | 2015-12-31 | 2016-07-13 | 同济大学 | Intelligence cable shock attenuation benzvalene form support |
| CN205443917U (en) * | 2015-12-31 | 2016-08-10 | 同济大学 | Optical fiber sensing stay rope shock absorption support |
| CN205443918U (en) * | 2015-12-31 | 2016-08-10 | 同济大学 | Intelligence stay rope shock absorption support |
| CN205604065U (en) * | 2016-01-19 | 2016-09-28 | 深圳桥智科技有限公司 | Multi -functional intelligent SMA cable subtracts, isolation bearing |
| CN206279444U (en) * | 2016-11-07 | 2017-06-27 | 上海市政工程设计研究总院（集团）有限公司 | Dynamometry plate type rubber support base based on fibre strain sensor |
-
2016
- 2016-11-07 CN CN201610975320.8A patent/CN106400682B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009047582A (en) * | 2007-08-21 | 2009-03-05 | Kawaguchi Metal Industries Co Ltd | Measuring method of vertical load on laminated rubber, and laminated rubber |
| CN102168403A (en) * | 2010-02-26 | 2011-08-31 | 同济大学 | Bridge rubber support system for wireless real-time monitoring |
| CN203947407U (en) * | 2014-04-24 | 2014-11-19 | 柳州东方工程橡胶制品有限公司 | A kind of intelligent shock-isolation neoprene bearing |
| CN104153478A (en) * | 2014-08-12 | 2014-11-19 | 中国十七冶集团有限公司 | Intelligent multi-dimensional seismic mitigation and isolation support |
| CN204570459U (en) * | 2015-03-10 | 2015-08-19 | 同济大学 | A kind of can the bridge cable shock-absorption basin-type rubber support system of wireless real-time monitoring |
| CN105755950A (en) * | 2015-12-31 | 2016-07-13 | 同济大学 | Intelligent optical-fiber inhaul-cable damping support system |
| CN205382403U (en) * | 2015-12-31 | 2016-07-13 | 同济大学 | Intelligence cable shock attenuation benzvalene form support |
| CN205443917U (en) * | 2015-12-31 | 2016-08-10 | 同济大学 | Optical fiber sensing stay rope shock absorption support |
| CN205443918U (en) * | 2015-12-31 | 2016-08-10 | 同济大学 | Intelligence stay rope shock absorption support |
| CN205604065U (en) * | 2016-01-19 | 2016-09-28 | 深圳桥智科技有限公司 | Multi -functional intelligent SMA cable subtracts, isolation bearing |
| CN206279444U (en) * | 2016-11-07 | 2017-06-27 | 上海市政工程设计研究总院（集团）有限公司 | Dynamometry plate type rubber support base based on fibre strain sensor |
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