CN111609985B - Bridge expansion joint resonance detection early warning device based on cloud computing - Google Patents

Bridge expansion joint resonance detection early warning device based on cloud computing Download PDF

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Publication number
CN111609985B
CN111609985B CN202010492623.0A CN202010492623A CN111609985B CN 111609985 B CN111609985 B CN 111609985B CN 202010492623 A CN202010492623 A CN 202010492623A CN 111609985 B CN111609985 B CN 111609985B
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detection
plates
grooves
limiting
bridge
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CN111609985A (en
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赵晓勇
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Hunan Expressway Engineering Consulting Co.,Ltd.
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Hunan Expressway Engineering Consulting Co ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M7/00Vibration-testing of structures; Shock-testing of structures
    • G01M7/02Vibration-testing by means of a shake table
    • G01M7/025Measuring arrangements
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00Structural or constructional details of bridges
    • E01D19/06Arrangement, construction or bridging of expansion joints
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2101/00Material constitution of bridges
    • E01D2101/30Metal

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

The invention discloses a bridge expansion joint resonance detection early warning device based on cloud computing, which comprises two connecting bodies respectively arranged on two bridge plates and a cloud terminal detector arranged on one of the connecting bodies, wherein two first limiting grooves and two communicating grooves are symmetrically formed in each connecting body, and the first limiting grooves are communicated with the communicating grooves on the same side. The invention induces the resonance of the bridge through the I-shaped detection plate, converts the resonance into the change of pressure difference through the air bag, converts the pressure difference into the change of resistance through the metal sliding plug and the resistance tube, realizes the measurement of the resonance amplitude, reduces the occupied space between the built-in connecting bodies of the detection box, and reduces the interference of rainwater and dust through the sealing of the sealing rubber strip and the connecting plate.

Description

Bridge expansion joint resonance detection early warning device based on cloud computing
Technical Field
The invention relates to the field of cloud computing equipment, in particular to a resonance detection and early warning device for a bridge expansion joint based on cloud computing.
Background
The bridge need set up the expansion joint in order to deal with the pressurization or the tensile phenomenon that the bridge swing and material deformation produced at the in-process of building, increases the adaptability of bridge to the environment.
The existing bridge resonance detection device needs to carry out remote observation or detection on a bridge floor or a bridge body far away from the bridge floor, occupies a larger space, and equipment arranged outside the bridge floor or the bridge body is easy to cause water or ash entering damage to the equipment when being in a changeable weather environment for a long time, so that the maintenance frequency is increased.
Disclosure of Invention
The invention aims to solve the defects that the existing technology occupies a large space and is damaged by environmental factors, and provides a bridge expansion joint resonance detection early warning device based on cloud computing.
In order to achieve the purpose, the invention adopts the following technical scheme:
a bridge expansion joint resonance detection early warning device based on cloud computing comprises two connecting bodies and a cloud terminal detector, wherein the two connecting bodies are respectively arranged on two bridge plates, the cloud terminal detector is arranged on one of the connecting bodies, each connecting body is symmetrically provided with two first limiting grooves and two communicating grooves, the first limiting grooves are communicated with the communicating grooves on the same side, each connecting body is positioned between the two first limiting grooves and is provided with a detection groove and a second limiting groove, a connecting port is arranged between the detection groove and the second limiting groove, two connecting plates are respectively inserted and arranged in the two first limiting grooves and the two communicating grooves, first adhesive tapes are respectively attached to two ends, positioned in the first limiting grooves, of the two connecting plates, sealing adhesive tapes are respectively embedded on the opposite surfaces of the two connecting plates, a rubber plate is commonly embedded on the opposite surfaces of the two connecting plates, and a detection box is embedded and arranged on the rubber plate, i-shaped detection plates are arranged among the second limiting groove, the detection groove and the connecting port on each connecting body in a sliding mode, a second adhesive tape is attached to one end, located in the second limiting groove, of each I-shaped detection plate, and an air bag is arranged between each two I-shaped detection plates and the detection box;
two division boards are installed to the symmetry in the detection box, two all install resistance tube on the division board, two install the spacing pipe of metal jointly between the resistance tube, two tracheas, two are installed to the symmetry on the spacing pipe of metal the trachea extends to the detection box outside respectively and connects the gasbag, every equal slidable mounting has the metal sliding plug in the resistance tube, every the elasticity wire is all installed to the one end that the spacing pipe of metal was kept away from to the metal sliding plug, every the elasticity wire is all fixed on corresponding side division board.
Preferably, the two elastic wires are electrically connected with the cloud terminal detector.
The invention has the following beneficial effects:
1. the contact surfaces of the two connectors are sealed through the sealing rubber strips, and the two connectors are transversely sealed through the two connecting plates, so that the two detection grooves are in a relatively sealed environment, the interference of rainwater and dust is reduced, the service life of the detection box is prolonged, the detection box is arranged in the bridge expansion joint, the space outside the bridge floor and the bridge body is not occupied, and the space utilization rate is increased.
2. Through the resonance condition of I-shaped pick-up plate detection bridge, during the bridge resonance, the I-shaped pick-up plate slides in connecting the mouth, gliding I-shaped pick-up plate makes the gasbag constantly compress to kick-back, gasbag compression is kick-backed and is made two metal sliding plugs reciprocal sliding through trachea and the spacing pipe of metal, make the resistance between two elasticity wires take place periodic variation, then lead to the circuit in the electric current to change, the bridge resonance range is calculated through the current change to cloud terminal detector, and cloud terminal detector will calculate data transmission to high in the clouds server real-time supervision change, be convenient for respond when taking place the resonance of transfiniting fast.
In conclusion, the invention senses the resonance of the bridge through the I-shaped detection plate, converts the resonance into the change of the pressure difference through the air bag, converts the pressure difference into the change of the resistance through the metal sliding plug and the resistance tube, realizes the measurement of the resonance amplitude, reduces the occupied space between the built-in connecting bodies of the detection box, and reduces the interference of rainwater and dust through the sealing of the sealing rubber strip and the connecting plate.
Drawings
Fig. 1 is a schematic structural diagram of a resonance detection and early warning device for a bridge expansion joint based on cloud computing according to the present invention;
FIG. 2 is an enlarged view of a connecting body part of the bridge expansion joint resonance detection early warning device based on cloud computing provided by the invention;
FIG. 3 is an enlarged view of a part of a detection box of the cloud computing-based bridge expansion joint resonance detection early warning device provided by the invention;
fig. 4 is a schematic view of a current change of the cloud computing-based bridge expansion joint resonance detection early warning device provided by the invention.
In the figure: the detection device comprises a 1 connecting body, 11 first limiting grooves, 111 communicating grooves, 12 detection grooves, 121 connecting ports, 13 second limiting grooves, 2 connecting plates, 21 sealing rubber strips, 22 first rubber strips, 3I-shaped detection plates, 31 second rubber strips, 4 rubber plates, 5 detection boxes, 51 isolation plates, 52 resistance tubes, 521 metal sliding plugs, 522 elastic leads, 53 metal limiting tubes, 6 air bags, 61 air tubes and 7 cloud terminal detectors.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-4, a bridge expansion joint resonance detection early warning device based on cloud computing comprises two connecting bodies 1 respectively installed on two bridge plates and a cloud terminal detector 7 installed on one of the connecting bodies 1, wherein each connecting body 1 is symmetrically provided with two first limiting grooves 11 and two communicating grooves 111, the first limiting grooves 11 are communicated with the communicating grooves 111 on the same side, each connecting body 1 is positioned between the two first limiting grooves 11 and is provided with a detection groove 12 and a second limiting groove 13, a connecting port 121 is arranged between the detection groove 12 and the second limiting groove 13, two connecting plates 2 are respectively inserted and installed in the two first limiting grooves 11 and the two communicating grooves 111, first adhesive tapes 22 are respectively attached to the two ends of the two connecting plates 2 positioned in the first limiting grooves 11, sealing adhesive tapes 21 are respectively embedded on the opposite surfaces of the two connecting plates 2, and adhesive plates 4 are commonly embedded on the opposite surfaces of the two connecting plates 2, the rubber plate 4 is embedded with a detection box 5, I-shaped detection plates 3 are arranged among the second limiting groove 13, the detection groove 12 and the connecting port 121 on each connecting body 1 in a sliding mode, a second rubber strip 31 is attached to one end, located in the second limiting groove 13, of each I-shaped detection plate 3, and an air bag 6 is arranged between each two I-shaped detection plates 3 and the detection box 5;
the detection groove 12 between the two connectors 1 is sealed by the sealing rubber strip 21 and the connecting plate 2, so that dust and rainwater cannot interfere with the detection box 5 embedded on the rubber plate 4, and the service life of the detection box 5 is prolonged;
the first adhesive tape 22 and the second adhesive tape 31 can avoid friction between the connecting plate 2 and the connecting body 1 and friction between the I-shaped detection plate 3 and the connecting body 1 when the bridge resonates, so that the noise is reduced, and the friction loss is reduced;
two isolation plates 51 are symmetrically installed in the detection box 5, resistance tubes 52 are installed on the two isolation plates 51, a metal limiting tube 53 is installed between the two resistance tubes 52, two air tubes 61 are symmetrically installed on the metal limiting tube 53, the two air tubes 61 extend to the outer side of the detection box 5 and are connected with the air bag 6, a metal sliding plug 521 is installed in each resistance tube 52 in a sliding mode, an elastic lead 522 is installed at one end, far away from the metal limiting tube 53, of each metal sliding plug 521, and each elastic lead 522 is fixed on the corresponding side isolation plate 51;
the I-shaped detection plate 3 continuously reciprocates when the bridge resonates, the air bag 6 is compressed and rebounded by the reciprocating I-shaped detection plate 3, the metal sliding plug 521 in the resistance tube 52 slides back and forth through the air tube 61 and the metal limiting tube 53, so that the resistance in the circuit periodically changes, the current in the circuit periodically changes, the cloud terminal detector 7 detects the current change, calculates the resonance amplitude and the resonance frequency, and transmits the resonance amplitude and the resonance frequency to the cloud server for analysis, and cloud early warning is facilitated.
The two elastic wires 522 are electrically connected with the cloud terminal detector 7, and the cloud terminal detector 7 is connected with the two elastic wires 522 through the space wiring on the two sides of the partition board 51 of the detection box 5, so that the wiring is more regular.
When the detection device is used, bridge resonance causes the reciprocating motion of the I-shaped detection plate 3, the reciprocating motion of the I-shaped detection plate 3 causes the air bag 6 to be continuously compressed and rebounded, the metal sliding plug 521 is caused to reciprocate in the resistance tube 52 through the air tube 61 and the metal limiting tube 53, the resistance in a circuit is caused to change periodically, the current is caused to change periodically, and the cloud terminal detector 7 calculates the resonance amplitude and frequency through detecting the current change and transmits the resonance amplitude and frequency to the cloud server for analysis;
when the current value reaches the limit value and lasts for a period of time, the critical resonance amplitude is large, bridge resonance has the risk of damaging the bridge structure, and when the current value is lower than the limit value and changes, the bridge resonance amplitude is within the tolerance range of the bridge.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (1)

1. A bridge expansion joint resonance detection early warning device based on cloud computing comprises two connecting bodies (1) respectively installed on two bridge plates and a cloud terminal detector (7) installed on one of the connecting bodies (1), and is characterized in that each connecting body (1) is symmetrically provided with two first limiting grooves (11) and two communicating grooves (111), the first limiting grooves (11) are communicated with the communicating grooves (111) on the same side, each connecting body (1) is positioned between the two first limiting grooves (11) and is provided with a detection groove (12) and a second limiting groove (13), a connecting port (121) is arranged between the detection groove (12) and the second limiting groove (13), two connecting plates (2) are respectively inserted and installed in the two first limiting grooves (11) and the two communicating grooves (111), and first adhesive tapes (22) are attached to two ends of the two connecting plates (2) positioned in the first limiting grooves (11), sealing rubber strips (21) are embedded on opposite surfaces of the two connecting plates (2), rubber plates (4) are embedded on opposite surfaces of the two connecting plates (2) together, detection boxes (5) are embedded on the rubber plates (4), I-shaped detection plates (3) are arranged between second limiting grooves (13), detection grooves (12) and connectors (121) on each connecting body (1) in a sliding mode together, second rubber strips (31) are attached to one ends, located in the second limiting grooves (13), of the I-shaped detection plates (3), and air bags (6) are arranged between the two I-shaped detection plates (3) and the detection boxes (5) together;
the detection box is characterized in that two isolation plates (51) are symmetrically arranged in the detection box (5), resistance tubes (52) are arranged on the two isolation plates (51), a metal limiting tube (53) is arranged between the two resistance tubes (52) together, two air tubes (61) are symmetrically arranged on the metal limiting tube (53), the two air tubes (61) extend to the outer side of the detection box (5) respectively and are connected with an air bag (6), a metal sliding plug (521) is arranged in each resistance tube (52) in a sliding mode, an elastic lead (522) is arranged at one end, far away from the metal limiting tube (53), of each metal sliding plug (521), and each elastic lead (522) is fixed on the corresponding side isolation plate (51);
the two elastic conducting wires (522) are electrically connected with the cloud terminal detector (7).
CN202010492623.0A 2020-06-03 2020-06-03 Bridge expansion joint resonance detection early warning device based on cloud computing Active CN111609985B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0979900A (en) * 1995-09-14 1997-03-28 Kazuto Sedo Servo type speed-displacement sensor
CN102507065A (en) * 2011-11-28 2012-06-20 中国航天科技集团公司第四研究院四○一所 Device for reducing thrust and vibration at pipeline ends
CN103698002A (en) * 2012-09-27 2014-04-02 国家纳米科学中心 Vibration detector and detection method
CN110207914A (en) * 2019-06-25 2019-09-06 广西交通职业技术学院 One kind being based on the quiet dynamic detection method of cloud data and system
CN110686978A (en) * 2019-10-22 2020-01-14 张长青 Bridge inhaul cable stretching resonance detection device
CN210242975U (en) * 2019-05-13 2020-04-03 河南豫美建设工程检测有限公司 Bridge frequency detection equipment

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0979900A (en) * 1995-09-14 1997-03-28 Kazuto Sedo Servo type speed-displacement sensor
CN102507065A (en) * 2011-11-28 2012-06-20 中国航天科技集团公司第四研究院四○一所 Device for reducing thrust and vibration at pipeline ends
CN103698002A (en) * 2012-09-27 2014-04-02 国家纳米科学中心 Vibration detector and detection method
CN210242975U (en) * 2019-05-13 2020-04-03 河南豫美建设工程检测有限公司 Bridge frequency detection equipment
CN110207914A (en) * 2019-06-25 2019-09-06 广西交通职业技术学院 One kind being based on the quiet dynamic detection method of cloud data and system
CN110686978A (en) * 2019-10-22 2020-01-14 张长青 Bridge inhaul cable stretching resonance detection device

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Address before: 450003 402, 4th floor, building J, Tianheng, Henan Outsourcing Industrial Park, Yangjin Road, Jinshui District, Zhengzhou City, Henan Province

Applicant before: Zhao Xiaoyong

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