CN111855045A - Bridge health monitoring support and monitoring system - Google Patents
Bridge health monitoring support and monitoring system Download PDFInfo
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- CN111855045A CN111855045A CN202010843016.4A CN202010843016A CN111855045A CN 111855045 A CN111855045 A CN 111855045A CN 202010843016 A CN202010843016 A CN 202010843016A CN 111855045 A CN111855045 A CN 111855045A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 93
- 230000036541 health Effects 0.000 title claims abstract description 43
- 238000006073 displacement reaction Methods 0.000 claims description 66
- 239000013307 optical fiber Substances 0.000 claims description 39
- 238000004458 analytical method Methods 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 4
- 238000007405 data analysis Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 10
- 230000000737 periodic effect Effects 0.000 abstract 1
- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006399 behavior Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/24—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet
- G01L1/242—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet the material being an optical fibre
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- 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
- E01D19/042—Mechanical bearings
- E01D19/046—Spherical bearings
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- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a bridge health monitoring support and a monitoring system, which are used for solving the problems that the bridge support is in a hidden and severe engineering environment, the manual detection is inconvenient, the manual periodic detection cannot be carried out in all weather, simultaneously, the number of the bridge supports is large, the manual detection period is long, and the safety of a bridge is difficult to judge.
Description
Technical Field
The invention belongs to the field of beam bridge supports; relates to the beam bridge support technology; in particular to a bridge health monitoring support and a monitoring system.
Background
With the rapid development of bridge engineering technology and large-scale building structures, people pay more attention to the safety and durability of bridges and large-scale buildings, and health monitoring systems are developed at the same time. The health monitoring system mainly obtains various data reflecting the structure behaviors through a sensing device for measuring various responses, scientific reference basis is provided for analyzing the health state of the structure and evaluating the reliability of the structure, the conventional regular manual detection is a common means for obtaining the health condition of the bridge bearing, but the bridge bearing is in a hidden and severe engineering environment, the manual detection is inconvenient, meanwhile, the regular manual detection cannot be carried out in all weather, meanwhile, the number of the bridge bearings is large, the manual detection period is long, and the safety of the bridge is difficult to judge.
Disclosure of Invention
The invention aims to provide a bridge health monitoring support and a monitoring system, which are used for solving the problems that the bridge support is in a hidden and severe engineering environment, manual detection is inconvenient, manual regular detection cannot be carried out in all weather, the number of the bridge supports is large, the manual detection period is long, and the safety of a bridge is difficult to judge.
The purpose of the invention can be realized by the following technical scheme:
a bridge health monitoring support and monitoring system comprises a health monitoring support group, a monitoring acquisition center and a monitoring analysis control system platform, wherein the health monitoring support group consists of a plurality of health monitoring supports, each health monitoring support consists of a functional component, an optical fiber force measuring sensor group, a displacement sensor group and an inclination angle sensor group, and the functional component consists of a lower support plate, a spherical crown lining plate, an upper support plate, a spherical sliding plate, a sealing ring, a planar sliding plate, a middle plate and a wedge-shaped ring;
furthermore, the optical fiber force measuring sensor group consists of a plurality of optical fiber force measuring sensors which are connected together through cables, the displacement sensor group consists of a plurality of displacement sensors which are connected together through cables, the inclination angle sensor group consists of a plurality of inclination angle sensors which are connected together through cables, the displacement sensors, the optical fiber force measuring sensors and the inclination angle sensors are all transmitted and connected with a monitoring and collecting center through optical fibers, the monitoring and collecting center consists of a plurality of demodulation units, and the monitoring and collecting center performs data transmission with a monitoring and analyzing control system platform through optical fibers;
furthermore, the optical fiber force measuring sensor is used for collecting vertical load data of the health monitoring support, the displacement sensor is used for collecting sliding displacement data of the health monitoring support, the inclination angle sensor is used for collecting inclination angle data of the health monitoring support, the vertical load data, the sliding displacement data and the inclination angle data are transmitted through optical fibers and demodulated in the demodulation unit, and the demodulation unit transmits the demodulated information to the monitoring analysis control system platform through a wired transmission network and GPRS, 3G and 4G;
further, the monitoring analysis control system platform acquires monitoring data of the demodulation unit group and performs data analysis, and the specific analysis steps are as follows:
the method comprises the following steps: the monitoring data are divided into vertical load data K1, slippage displacement data K2 and inclination angle data K3, preset optical fiber force sensor group data K11, displacement sensor group data K22 and inclination angle sensor group data K33 are read, and the read data are compared with the obtained optical fiber force sensor group data K1, displacement sensor group data K2 and inclination angle sensor group data K3, and the comparison process is as follows:
substituting the data into formulas K11-K1, K22-K2 and K33-K3 to obtain values K111, K222 and K333, and comparing the values K111, K222 and K333 with a first preset range, a second preset range and a third preset range respectively, wherein the first preset range is a rational number within (0.1, 1), the second preset range is a rational number within (1, 3) and the third preset range is a rational number within (3, 5);
step two: when K111 belongs to a first preset range, the data are qualified, when K111 belongs to a second preset range, the data are passed, and when K111 belongs to a third preset range, the data are unqualified;
when the K222 is in a first preset range, the data is qualified, when the K222 is in a second preset range, the data is passed, and when the K222 is in a third preset range, the data is unqualified;
when the K333 is in a first preset range, the data is qualified, when the K333 is in a second preset range, the data is passed, and when the K333 is in a third preset range, the data is unqualified;
step three: when the K111 data is qualified, the system displays that the vertical load borne by the bridge is normal, when the K111 data is qualified, the system displays that the vertical load borne by the bridge is early-warned, and when the K111 data is unqualified, the system displays that the vertical load borne by the bridge is warned;
when the K222 data is qualified, the system displays that the bridge overrun displacement is normal, when the K222 data is passing, the system displays that the bridge overrun displacement is early-warned, and when the K222 data is unqualified, the system displays that the bridge overrun displacement is warned;
when the K333 data is qualified, the system displays that the bridge over-limit inclination angle is normal, when the K333 data is passed, the system displays that the bridge over-limit inclination angle is early-warned, and when the K333 data is unqualified, the system displays that the bridge over-limit inclination angle is warned.
Furthermore, a limiting hole groove is formed in the center of the lower support plate, the middle plate is installed in the limiting hole groove, a spherical sliding plate is installed on the upper end face of the middle plate, an installation groove is formed in the upper end face of the middle plate, a sealing ring is installed in the installation groove and wraps the periphery of the spherical sliding plate, a spherical crown lining plate is installed on the upper end of the spherical sliding plate, a planar sliding plate is installed on the upper end of the spherical crown lining plate, an upper support plate is installed above the planar sliding plate, and a wedge-shaped ring is arranged between the lower support plate and the middle plate;
furthermore, a sliding plate groove is formed in the adjacent surface of the wedge-shaped ring and the lower support plate, a lower sliding plate is installed on the adjacent surface of the wedge-shaped ring and the lower support plate, a sliding pair is formed by the wedge-shaped ring and the lower support plate, an inclined sliding plate is arranged on the upper surface of the wedge-shaped ring, and the inclined sliding plate and the inclined surface of the middle plate form a sliding pair;
furthermore, the optical fiber force measuring sensor is circumferentially arranged on the wedge-shaped ring, the top surface of the wedge-shaped ring is provided with a connecting hole for installing a displacement sensor, and the inclined angle of the wedge-shaped ring is within the range of degrees to DEG;
furthermore, the upper part of the middle plate is a concave spherical surface, the lower part of the middle plate is provided with an inclined surface, a first boss and a second boss, the first boss at the lower part of the middle plate is in clearance fit with a limit hole groove formed in the lower seat plate, the second boss at the lower part of the middle plate is in clearance fit with an inner hole of the wedge-shaped ring, and the middle plate, the wedge-shaped ring and the lower seat plate are limited in position;
furthermore, a plane sliding plate is arranged on the concave spherical surface of the middle plate, the plane sliding plate and the spherical crown lining plate form a rotary friction pair, and the inclination angle sensor is arranged at the center line position of the bottom surface of the upper seat plate along the bridge direction; the top surface of spherical crown welt is equipped with plane slide mounting groove, and plane slide installs in plane slide mounting groove, and plane slide and upper bracket board form the horizontal displacement pair of sliding.
Further, the monitoring data are vertical load data, slip displacement data and inclination angle data.
Furthermore, the displacement sensor is arranged at the position of the bottom surface of the upper seat plate along the bridge direction edge, and the stretching end part of the displacement sensor is fixed on the top surface of the wedge-shaped ring.
Compared with the prior art, the invention has the beneficial effects that:
1. the spherical sliding plate is arranged on the concave spherical surface of the middle plate, the spherical sliding plate and the spherical crown lining plate form a rotary friction pair, so that the rotary displacement release of the bridge is facilitated, the plane sliding plate mounting groove is formed in the top surface of the spherical crown lining plate, and a horizontal displacement sliding pair is formed with the upper support plate, so that the release of the daily sliding displacement of the bridge can be realized, and the sliding is flexible;
2. the system comprises an optical fiber force transducer, a displacement sensor, an inclination sensor and an analysis and control system platform, wherein the optical fiber force transducer is used for acquiring vertical stress deformation of a health monitoring support to reflect vertical load data, the displacement sensor is used for acquiring sliding displacement of the support, the inclination sensor is used for acquiring inclination data of the support, the analysis and control system platform analyzes the health condition of a bridge according to the monitoring data of a plurality of health monitoring supports, analyzes the stress state of each support point of the bridge according to the vertical load data of the plurality of health monitoring supports, whether the support points are uniformly stressed, whether bias voltage is generated, whether the bridge is empty or not and the like, and sets an early warning function and an alarming function, and analyzes and judges whether the telescopic sliding displacement of the bridge is over-limit or not according to the displacement data of the plurality of health monitoring supports, sets an over-limit displacement early warning function and an, And (4) an alarm function.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a block diagram of a bridge health monitoring support and monitoring system;
FIG. 2 is a schematic view of a bridge health monitoring support and a monitoring support structure of a monitoring system;
fig. 3 is a schematic diagram of a mid-plate structure.
In the figure: 1. a lower support plate; 2. a spherical cap liner plate; 3. an upper support plate; 4. a spherical sliding plate; 5. a seal ring; 6. a planar slide plate; 7. a middle plate; 8. a wedge-shaped ring; 9. a displacement sensor; 10. an optical fiber force sensor; 11. an inclination angle sensor.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-3, a bridge health monitoring support and monitoring system comprises a health monitoring support group, a monitoring and collecting center and a monitoring and analyzing control system platform, wherein the health monitoring support group consists of a plurality of health monitoring supports, each health monitoring support consists of a functional component, an optical fiber force measuring sensor group, a displacement sensor group and an inclination angle sensor group, and the functional component consists of a lower support plate 1, a spherical crown lining plate 2, an upper support plate 3, a spherical sliding plate 4, a sealing ring 5, a plane sliding plate 6, an intermediate plate 7 and a wedge-shaped ring 8;
a limiting hole groove is formed in the center of the lower support plate 1, the middle plate 7 is installed in the limiting hole groove, the spherical sliding plate 4 is installed on the upper end face of the middle plate 7, an installation groove is formed in the upper end face of the middle plate 7, a sealing ring 5 is installed in the installation groove, the sealing ring 5 wraps the periphery of the spherical sliding plate 4, the spherical crown lining plate 2 is installed on the upper end of the spherical sliding plate 4, the planar sliding plate 6 is installed on the upper end of the spherical crown lining plate 2, the upper support plate 3 is installed above the planar sliding plate 6, and a wedge-shaped ring 8 is arranged between the lower support plate 1;
a sliding plate groove is formed in the surface, adjacent to the lower support plate 1, of the wedge-shaped ring 8, a lower sliding plate is installed on the surface, the wedge-shaped ring 8 and the lower support plate form a sliding pair, an inclined sliding plate is arranged on the upper surface of the wedge-shaped ring 8, the inclined sliding plate and the inclined surface of the middle plate 7 form a sliding pair, the displacement sensor 9 is installed on the bottom surface of the upper support plate along the bridge direction edge, and the stretching end portion of the displacement sensor 9 is fixed to the top surface of the wedge-shaped ring 8;
the optical fiber force measuring sensor group consists of a plurality of optical fiber force measuring sensors 10, the optical fiber force measuring sensors 10 are connected together through cables, the displacement sensor group consists of a plurality of displacement sensors 9, the displacement sensors 9 are connected together through cables, the inclination angle sensor group consists of a plurality of inclination angle sensors 11, the inclination angle sensors 11 are connected together through cables, the displacement sensors 9, the optical fiber force measuring sensors 10 and the inclination angle sensors 11 are all transmitted and connected with a monitoring and collecting center through optical fibers, the monitoring and collecting center consists of a plurality of demodulation units, and the monitoring and collecting center performs data transmission with a monitoring and analyzing control system platform through optical fibers;
the optical fiber force measuring sensor 10 is used for collecting vertical load data of the health monitoring support, the displacement sensor 9 is used for collecting sliding displacement data of the health monitoring support, the inclination angle sensor 11 is used for collecting inclination angle data of the health monitoring support, the vertical load data, the sliding displacement data and the inclination angle data are all transmitted through optical fibers and demodulated in the demodulation unit, the demodulation unit transmits the demodulated information in the monitoring analysis control system platform through a wired transmission network and GPRS, 3G and 4G, and the monitoring data are vertical load data, sliding displacement data and inclination angle data;
the monitoring analysis control system platform acquires monitoring data of the demodulation unit group and performs data analysis, and the specific analysis steps are as follows:
the method comprises the following steps: the monitoring data are divided into vertical load data K1, slippage displacement data K2 and inclination angle data K3, preset optical fiber force sensor group data K11, displacement sensor group data K22 and inclination angle sensor group data K33 are read, and the read data are compared with the obtained optical fiber force sensor group data K1, displacement sensor group data K2 and inclination angle sensor group data K3, and the comparison process is as follows:
substituting the data into a formula and a sum to obtain values K111, K222 and K333, and comparing the values K111, K222 and K333 with a first preset range, a second preset range and a third preset range respectively, wherein the first preset range is a rational number within (0.1, 1), the second preset range is a rational number within (1, 3) and the third preset range is a rational number within (3, 5);
step two: when K111 belongs to a first preset range, the data are qualified, when K111 belongs to a second preset range, the data are passed, and when K111 belongs to a third preset range, the data are unqualified;
when the K222 is in a first preset range, the data is qualified, when the K222 is in a second preset range, the data is passed, and when the K222 is in a third preset range, the data is unqualified;
when the K333 is in a first preset range, the data is qualified, when the K333 is in a second preset range, the data is passed, and when the K333 is in a third preset range, the data is unqualified;
step three: when the K111 data is qualified, the system displays that the vertical load borne by the bridge is normal, when the K111 data is qualified, the system displays that the vertical load borne by the bridge is early-warned, and when the K111 data is unqualified, the system displays that the vertical load borne by the bridge is warned;
when the K222 data is qualified, the system displays that the bridge overrun displacement is normal, when the K222 data is passing, the system displays that the bridge overrun displacement is early-warned, and when the K222 data is unqualified, the system displays that the bridge overrun displacement is warned;
when the K333 data is qualified, the system displays that the bridge over-limit inclination angle is normal, when the K333 data is passed, the system displays that the bridge over-limit inclination angle is early-warned, and when the K333 data is unqualified, the system displays that the bridge over-limit inclination angle is warned.
A sliding plate groove is formed in the surface, adjacent to the lower support plate 1, of the wedge-shaped ring 8, a lower sliding plate is installed on the surface, the wedge-shaped ring 8 and the lower support plate form a sliding pair, an inclined sliding plate is arranged on the upper surface of the wedge-shaped ring 8, and the inclined sliding plate and the inclined surface of the middle plate 7 form a sliding pair;
the optical fiber force measuring sensor 10 is circumferentially arranged on the wedge-shaped ring 8, the top surface of the wedge-shaped ring 8 is provided with a connecting hole for mounting the displacement sensor 9, and the inclined angle of the wedge-shaped ring 8 is 10-35 degrees;
the upper part of the middle plate 7 is a concave spherical surface, the lower part of the middle plate 7 is provided with an inclined surface, a first boss and a second boss, the first boss at the lower part of the middle plate 7 is in clearance fit with a limit hole groove formed in the lower seat plate, the second boss at the lower part of the middle plate 7 is in clearance fit with an inner hole of the wedge-shaped ring 8, and the middle plate 7, the wedge-shaped ring 8 and the lower seat plate 1 are limited mutually;
a plane sliding plate 6 is arranged on the concave spherical surface of the middle plate 7, the plane sliding plate 6 and the spherical crown lining plate 2 form a rotating friction pair, and the inclination angle sensor 11 is arranged on the bottom surface of the upper seat plate along the center line of the bridge-direction edge; the top surface of spherical crown welt 2 is equipped with plane slide mounting groove, and plane slide 6 is installed in plane slide mounting groove, and plane slide 6 forms the horizontal displacement pair of sliding with upper bracket board 3.
The invention is implemented specifically as follows: when the monitoring support is pressed, load is transmitted to the inclined plane of the wedge-shaped ring 8, oblique thrust is generated on the wedge-shaped ring 8, so that the wedge-shaped ring 8 generates radial and circumferential deformation, microstrain is monitored by the optical fiber force transducer 10 arranged on the circumferential step of the wedge-shaped ring 8, the microstrain is converted into wavelength change of a reflected light wave signal, the wavelength change is transmitted to the demodulation unit through an optical fiber signal wire, the demodulation unit transmits the read light wave change data to the data processing terminal of the monitoring analysis control system platform through a network, and the monitoring analysis control system carries out related monitoring, analysis, evaluation and control work;
the support disclosed by the invention is a multidirectional support, the unidirectional support and the fixed support only need to change the matching mode of the limiting directions of the middle plate 7 and the upper seat plate, the fixed support is provided with an annular limiting structure, the unidirectional support is provided with a stop strip in the limiting direction of the upper seat plate, the middle plate 7 is provided with a contact guide surface, the matching structures of the lower support plate 1 and the middle plate 7 of the support are the same, the mounting interfaces of the pier tops are the same, the support is convenient to produce and process, the mutual universality of parts is ensured, and the manufacturing cost is saved.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (4)
1. A bridge health monitoring support and a monitoring system are characterized by comprising a health monitoring support group, a monitoring and collecting center and a monitoring and analyzing control system platform, wherein the health monitoring support group consists of a plurality of health monitoring supports, each health monitoring support consists of a functional component, an optical fiber force measuring sensor group, a displacement sensor group and an inclination angle sensor group, and the functional component consists of a lower support plate (1), a spherical crown lining plate (2), an upper support plate (3), a spherical sliding plate (4), a sealing ring (5), a planar sliding plate (6), a middle plate (7) and a wedge-shaped ring (8);
the optical fiber force measuring sensor group consists of a plurality of optical fiber force measuring sensors (10), the optical fiber force measuring sensors (10) are connected together through cables, the displacement sensor group consists of a plurality of displacement sensors (9), the displacement sensors (9) are connected together through cables, the inclination angle sensor group consists of a plurality of inclination angle sensors (11), the inclination angle sensors (11) are connected together through cables, the displacement sensors (9), the optical fiber force measuring sensors (10) and the inclination angle sensors (11) are connected with a monitoring and collecting center through optical fibers, the monitoring and collecting center consists of a plurality of demodulation units, and the monitoring and collecting center performs data transmission with a monitoring and analyzing control system platform through a wired transmission network and GPRS, 3G, 4G and 5G;
the optical fiber force measuring sensor (10) is used for collecting vertical load data of the health monitoring support, the displacement sensor (9) is used for collecting sliding displacement data of the health monitoring support, the inclination angle sensor (11) is used for collecting inclination angle data of the health monitoring support, the vertical load data, the sliding displacement data and the inclination angle data are all demodulated in the demodulation unit through optical fiber transmission, and the demodulation unit transmits the demodulated monitoring data to the monitoring analysis control system platform through a wired transmission network and GPRS, 3G, 4G and 5G;
the monitoring analysis control system platform acquires monitoring data of the demodulation unit group and performs data analysis, and the specific analysis steps are as follows:
the method comprises the following steps: the monitoring data are divided into vertical load data K1, slippage displacement data K2 and inclination angle data K3, preset optical fiber force sensor group data K11, displacement sensor group data K22 and inclination angle sensor group data K33 are read, and the read data are compared with the obtained optical fiber force sensor group data K1, displacement sensor group data K2 and inclination angle sensor group data K3, and the comparison process is as follows:
substituting the data into a formula | K11-K1|, | K22-K2| and | K33-K3|, obtaining numerical values K111, K222 and K333, and comparing the numerical values K111, K222 and K333 with a first preset range, a second preset range and a third preset range respectively, wherein the first preset range is a rational number within (0.1, 1], the second preset range is a rational number within (1, 3) and the third preset range is a rational number within (3, 5);
step two: when K111 belongs to a first preset range, the data are qualified, when K111 belongs to a second preset range, the data are passed, and when K111 belongs to a third preset range, the data are unqualified;
when the K222 is in a first preset range, the data is qualified, when the K222 is in a second preset range, the data is passed, and when the K222 is in a third preset range, the data is unqualified;
when the K333 is in a first preset range, the data is qualified, when the K333 is in a second preset range, the data is passed, and when the K333 is in a third preset range, the data is unqualified;
step three: when the K111 data is qualified, the system displays that the vertical load borne by the bridge is normal, when the K111 data is qualified, the system displays that the vertical load borne by the bridge is early-warned, and when the K111 data is unqualified, the system displays that the vertical load borne by the bridge is warned;
when the K222 data is qualified, the system displays that the bridge overrun displacement is normal, when the K222 data is passing, the system displays that the bridge overrun displacement is early-warned, and when the K222 data is unqualified, the system displays that the bridge overrun displacement is warned;
when the K333 data is qualified, the system displays that the bridge over-limit inclination angle is normal, when the K333 data is passed, the system displays that the bridge over-limit inclination angle is early-warned, and when the K333 data is unqualified, the system displays that the bridge over-limit inclination angle is warned.
2. The bridge health monitoring support and monitoring system according to claim 1, wherein a limiting hole groove is formed in the center of the lower support plate (1), the middle plate (7) is installed in the limiting hole groove, a spherical sliding plate (4) is installed on the upper end surface of the middle plate (7), an installation groove is formed in the upper end surface of the middle plate (7), a sealing ring (5) is installed in the installation groove, the sealing ring (5) wraps the periphery of the spherical sliding plate (4), a spherical crown lining plate (2) is installed on the upper end of the spherical sliding plate (4), a planar sliding plate (6) is installed on the upper end of the spherical crown lining plate (2), an upper support plate (3) is installed above the planar sliding plate (6), and a wedge-shaped ring (8) is arranged between the lower support plate (1) and the middle plate (7);
a sliding plate groove is formed in the surface, adjacent to the lower support plate (1), of the wedge-shaped ring (8), a lower sliding plate is installed in the sliding plate groove, the wedge-shaped ring (8) and the lower support plate form a sliding pair, an inclined sliding plate is arranged on the upper surface of the wedge-shaped ring (8), and the inclined sliding plate and the inclined surface of the middle plate (7) form a sliding pair;
the optical fiber force measuring sensor (10) is circumferentially arranged on the wedge-shaped ring (8), the top surface of the wedge-shaped ring (8) is provided with a connecting hole for mounting the displacement sensor (9), and the inclined angle of the wedge-shaped ring (8) is 10-35 degrees;
the upper part of the middle plate (7) is a concave spherical surface, the lower part of the middle plate (7) is provided with an inclined surface, a first boss and a second boss, the first boss at the lower part of the middle plate (7) is in clearance fit with a limit hole groove formed in the lower base plate, the second boss at the lower part of the middle plate (7) is in clearance fit with an inner hole of the wedge-shaped ring (8), and the middle plate (7), the wedge-shaped ring (8) and the lower support base plate (1) are limited mutually;
a plane sliding plate (6) is arranged on the concave spherical surface of the middle plate (7), the plane sliding plate (6) and the spherical crown lining plate (2) form a rotating friction pair, and the tilt angle sensor (11) is arranged on the bottom surface of the upper seat plate along the central line of the bridge-direction edge; the top surface of spherical crown welt (2) is equipped with plane slide mounting groove, and plane slide (6) are installed in plane slide mounting groove, and plane slide (6) form the horizontal displacement pair of sliding with upper bracket board (3).
3. The bridge health monitoring support and monitoring system according to claim 1, wherein the monitoring data is vertical load data, slip displacement data and inclination data.
4. The bridge health monitoring support and monitoring system according to claim 1, wherein the displacement sensor (9) is installed at the bottom of the upper seat plate along the bridge edge, and the stretching end of the displacement sensor (9) is fixed on the top surface of the wedge-shaped ring (8).
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| CN112729635A (en) * | 2021-02-20 | 2021-04-30 | 河北省建筑科学研究院有限公司 | Computer-based real-time monitoring method for stress state of steel-concrete composite beam |
| CN113375714A (en) * | 2021-05-06 | 2021-09-10 | 四川省亚通工程咨询有限公司 | Bridge safety monitoring analysis management system |
| CN114812660A (en) * | 2021-01-19 | 2022-07-29 | 新疆北新路桥集团股份有限公司 | Bridge safety monitoring device |
| CN115096486A (en) * | 2022-05-07 | 2022-09-23 | 中交公路长大桥建设国家工程研究中心有限公司 | Force measurement and displacement type friction pendulum support and sensor replacement method |
| CN115266076A (en) * | 2022-09-26 | 2022-11-01 | 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 |
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2020
- 2020-08-20 CN CN202010843016.4A patent/CN111855045A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114812660A (en) * | 2021-01-19 | 2022-07-29 | 新疆北新路桥集团股份有限公司 | Bridge safety monitoring device |
| CN112729635A (en) * | 2021-02-20 | 2021-04-30 | 河北省建筑科学研究院有限公司 | Computer-based real-time monitoring method for stress state of steel-concrete composite beam |
| CN112729635B (en) * | 2021-02-20 | 2022-04-15 | 河北省建筑科学研究院有限公司 | Computer-based support and monitoring method for monitoring stress state of steel-concrete composite beam in real time |
| CN113375714A (en) * | 2021-05-06 | 2021-09-10 | 四川省亚通工程咨询有限公司 | Bridge safety monitoring analysis management system |
| CN113375714B (en) * | 2021-05-06 | 2023-02-28 | 四川省亚通工程咨询有限公司 | Bridge safety monitoring analysis management system |
| CN115096486A (en) * | 2022-05-07 | 2022-09-23 | 中交公路长大桥建设国家工程研究中心有限公司 | Force measurement and displacement type friction pendulum support and sensor replacement method |
| CN115096486B (en) * | 2022-05-07 | 2023-10-27 | 中交公路长大桥建设国家工程研究中心有限公司 | Force measurement and displacement type friction pendulum support and sensor replacement method |
| CN115266076A (en) * | 2022-09-26 | 2022-11-01 | 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 |
| 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 |
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