CN111537169B - Movable bridge deflection detector - Google Patents
Movable bridge deflection detector Download PDFInfo
- Publication number
- CN111537169B CN111537169B CN202010390066.1A CN202010390066A CN111537169B CN 111537169 B CN111537169 B CN 111537169B CN 202010390066 A CN202010390066 A CN 202010390066A CN 111537169 B CN111537169 B CN 111537169B
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- track
- car
- detection
- bridge
- detects
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0008—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings of bridges
-
- 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
- E01D19/10—Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
- E01D19/106—Movable inspection or maintenance platforms, e.g. travelling scaffolding or vehicles specially designed to provide access to the undersides of bridges
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0041—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress
- G01M5/005—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress by means of external apparatus, e.g. test benches or portable test systems
Abstract
The invention relates to the technical field of bridge engineering detection, and particularly discloses a movable bridge deflection detector which comprises a first track and a first detection vehicle which are arranged on a pier, a second track and a second detection vehicle which are arranged on a footpath of a bridge floor, and a third track arranged on the lower end surface of the bridge floor; the first track is along the height direction of the pier, the second track is along the width direction of the footpath, and the third track is along the width direction of the bridge deck; the first detection vehicle can climb upwards along the first track, and a reference plate is horizontally arranged on the first detection vehicle; the second detects the car and can remove along the second track, and the second is detected and is equipped with the extension frame of buckling downwards on the car, the lower extreme that extends the frame is equipped with the horizontal stand, is equipped with the third on the horizontal stand and detects the car, and the third detects the car and can remove along the third track, and the bottom that the third detected the car is equipped with detects the platform, detects the bottom of platform and is equipped with the detector, the detector can contact with the up end of benchmark board. The invention aims to solve the problem of inaccurate detection results.
Description
Technical Field
The invention relates to the technical field of bridge engineering detection, and particularly discloses a movable bridge deflection detector.
Background
The bridge generally comprises a bridge deck and piers, and fences and footpaths are arranged on two sides of the bridge deck. The bridge deflection detection belongs to a main detection project in a static and dynamic load test, and is used for detecting the deformation degree of a bridge under a certain static load condition, and the detection is required after the bridge is completed or used for a certain period. Because the deformation of the bridge under load is generally small and the detection precision requirement is high, a high-precision dial indicator is required for detection. During the detection, the dial indicator is contacted with the bottom of the bridge to be measured, and because the height of the bridge is higher, in order to facilitate the detection, a detector usually uses a long rod to push the dial indicator to the bottom of the bridge. Although the method is simple and convenient, the method has certain problems in measurement: the stock that rigidity is less no matter vertical arrangement or horizontal arrangement all take place the bending deformation of certain degree easily, lead to the testing result extremely inaccurate, the general quality of the great stock of rigidity is big, and the personnel of not being convenient for are handheld, and the below of part bridge is waters, lane, greenbelt etc. and it is also very inconvenient to detect.
Disclosure of Invention
The invention aims to provide a movable bridge deflection detector to solve the problem of inaccurate detection results.
In order to achieve the purpose, the basic scheme of the invention is as follows:
the movable bridge deflection detector comprises a first track and a first detection vehicle which are arranged on a pier, a second track and a second detection vehicle which are arranged on a footpath of a bridge floor, and a third track arranged on the lower end surface of the bridge floor; the first track is along the height direction of the pier, the second track is along the width direction of the footpath, and the third track is along the width direction of the bridge deck; the first detection vehicle can climb upwards along the first track, and a reference plate is horizontally arranged on the first detection vehicle; the second detects the car and can remove along the second track, and the second is detected and is equipped with the extension frame of buckling downwards on the car, the lower extreme that extends the frame is equipped with the horizontal stand, is equipped with the third on the horizontal stand and detects the car, and the third detects the car and can remove along the third track, and the bottom that the third detected the car is equipped with detects the platform, detects the bottom of platform and is equipped with the detector, the detector can contact with the up end of benchmark board.
Optionally, the two first rails are respectively arranged on two sides of the pier, and the first rails are in a rack shape; two first detection cars include two first gyro wheels respectively, and the outer wall of first gyro wheel is the gear form, and first gyro wheel can mesh with first track, and the both sides of two first detection cars all are through first link fixed connection, the benchmark board level is fixed to be set up on one of them first detection car.
Optionally, the second rail is pre-buried on the footpath, first fixing plates extend outwards from two sides of the upper end of the second rail, first screw holes are formed in the first fixing plates, a first cover plate capable of covering the second rail is placed on the first fixing plates, and second screw holes aligned with the first screw holes are formed in the first cover plate; the second detects the car and includes four second gyro wheels, and the second gyro wheel can be gone into and remove in the second track by the card, the bottom both sides of second detection car are equipped with the side base, and when the second gyro wheel card was gone into the second track, the side base contacted with the up end of pavement.
Optionally, two opposite third rails are arranged on the lower end face of the bridge floor, and the third rails are in a chevron shape and form an upper rail groove and a lower rail groove; the third detection vehicle comprises two sets of third transverse rollers and two third vertical rollers, the third transverse rollers are abutted to the inner side wall of the track groove above the third transverse rollers, and the third vertical rollers are abutted to the inner bottom wall of the track groove below the third transverse rollers.
Optionally, the horizontal stand includes first support body and two second support bodies, the third detects the car and goes up the level and be equipped with the first horizontal groove that is used for holding first support body, two the second support body is located the both sides of first support body, is equipped with the chute that is used for bearing third vertical gyro wheel on the second support body.
Optionally, the bottom of examining the test table is equipped with the connector, the connector is including being the spherical connecting shell of cavity, connection ball and connecting rod, the bottom of connecting shell is equipped with the opening, connect ball sliding contact and set up in connecting the shell, the upper end and the connection ball of connecting rod are connected, the lower extreme and the detector of connecting rod are connected.
The working principle and the beneficial effects of the scheme are as follows:
1. first detection car, second detection car and third detection car in this scheme can directly adopt the vehicle transportation, and it is also comparatively convenient to detect the operation, and as long as be provided with first track, second track and third track on the bridge and all can use first detection car, second detection car and third detection car to detect, especially be waters, afforestation district etc. to the bridge below, need not the measurement personnel and walk to the bridge below. The deflection detector in the scheme can be used for various bridges.
2. In the scheme, the reference plate is arranged on the bridge pier, so that the bridge pier cannot deform, and the position of the reference plate can be kept unchanged; the second detects the car and can drive extension frame and third and detect the car and remove along the width direction of bridge floor, makes the third detect the car and is close to the third track, and the third detects the car and drives the detector again and remove the center department of bridge floor bottom, and the detector of being convenient for starts the detection.
3. The third detects and is equipped with third horizontal gyro wheel and third vertical gyro wheel on the car, and wherein the third vertical gyro wheel can play the drive effect, drives the third and detects the car and remove, and the third horizontal gyro wheel can play limiting displacement, makes the third detect the car and keeps moving stably at the removal in-process, avoids the position of detector just.
4. After static load on the bridge floor, the deflection of the bridge floor changes, a third track deforms, a third detection vehicle possibly tilts, so that the detector tilts rather than vertically, and a result is greatly wrong during final detection; be equipped with the connector in this scheme, when the third detected the car slope, under the action of gravity of connecting rod and detector, the connecting ball can take place to deflect, and the detector is in vertical state, guarantees the reliability and the authenticity of testing result.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment;
FIG. 2 is an enlarged view taken at A in FIG. 1;
FIG. 3 is a schematic structural view of a second inspection vehicle, an extension frame, a third inspection vehicle and a walkway;
FIG. 4 is an enlarged view at B in FIG. 3;
FIG. 5 is a schematic view of the second rail and mounting tube;
FIG. 6 is a schematic structural view of a third inspection vehicle;
fig. 7 is a schematic structural view of a pier and a first inspection vehicle.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the bridge floor 1, the footpath 2, the pier 3, the first track 4, the first detection vehicle 5, the first connecting frame 6, the reference plate 7, the second detection vehicle 8, the side base 9, the second track 10, the extension frame 11, the third track 12, the second frame body 13, the third detection vehicle 14, the roller frame 15, the third transverse roller 16, the track groove 17, the connecting shell 18, the connecting rod 19, the detector 20, the first frame body 21, the slide way groove 22, the first horizontal groove 23, the extension plate 24, the second screw hole 25, the fixing plate 26, the mounting pipe 27, the third vertical roller 28, the detection platform 29, the connecting ball 30 and the first roller 31.
Examples
This embodiment is substantially as shown in fig. 1:
the mobile bridge deflection detector comprises a first rail 4, a second rail 10 and a third rail 12; and the system also comprises a first detection vehicle 5, a second detection vehicle 8 and a third detection vehicle 14.
Referring to fig. 7, the number of the first rails 4 is two, and the first rails 4 are respectively embedded at two sides of the pier 3, and the first rails 4 are in a rack shape. The first detection vehicle 5 is provided with two first motors and two first idler wheels 31, the first motors are double-output-shaft motors, and the first idler wheels 31 are coaxially and fixedly arranged at the output ends of the first motors. The outer wall of first gyro wheel 31 is the gear form, and it can mesh with first track 4, and the both sides of two first detection cars 5 are all through first link 6 and adopt bolt fixed connection, and the first detection car 5 towards bridge floor 1 middle part is gone up the level and is fixed and be provided with benchmark board 7.
Referring to fig. 2 to 5, the second rail 10 is pre-buried on the walkway 2 of the bridge, and the second rail 10 is arranged along the width direction of the walkway 2. Outside horizontal extension in upper end both sides of second track 10 has first fixed plate 26, is equipped with first screw on the first fixed plate 26, places the first apron that can cover second track 10 on the first fixed plate 26, is equipped with the second screw 25 with the alignment of first screw on the first apron, and accessible bolt screw in first screw and second screw 25 are in order to shelter from first apron on second track 10, when avoiding second track 10 not using, and the foreign object gets into second track 10. A second motor and four second rollers are arranged in the second detection vehicle 8, the second rollers are coaxially and fixedly arranged on the second motor, and the second rollers can be clamped into the second track 10 and move in the second track. And side bases 9 are fixedly arranged on two sides of the bottom of the second detection vehicle 8, and when the second roller is clamped into the second track 10, the side bases 9 are in contact with the upper end face of the footpath 2. Pre-buried hollow installation pipe 27 that is equipped with on pavement 2, the inner wall of installation pipe 27 is the internal thread, and installation pipe 27 totally two just are located the both sides of second track 10 respectively, are equipped with the third apron on the installation pipe 27, and the third apron also can pass through the bolt fastening at the up end of installation pipe 27 to ensure that foreign object can not get into installation pipe 27. The third screw hole is vertically formed in the side base 9 and aligned with the mounting pipe 27, and the side base 9 can be fixed on the mounting pipe 27 by bolts so as to fix the whole second detection vehicle 8. An extension frame 11 which is bent downwards is fixedly arranged on the second detection vehicle 8, and a horizontal frame is horizontally and fixedly arranged at the bottom of the extension frame 11. The horizontal stand includes that equal level is fixed to be set up first support body 21 and two second support bodies 13 on extending frame 11, and second support body 13 is located the both sides of first support body 21, is equipped with the slide groove 22 on the second support body 13, and the one end that is close to extending frame 11 on the slide groove 22 is equipped with the electro-magnet.
Referring to fig. 6, two third rails 12 are embedded in the lower end surface of the deck 1, and the third rails 12 are in a chevron shape and form an upper rail groove 17 and a lower rail groove 17. A third inspection vehicle 14 is placed on the horizontal shelf. The third detection vehicle 14 is in a convex shape, a third motor is fixedly arranged in the third detection vehicle 14, and the third motor is a double-output-shaft motor. The upper two sides of the third detection vehicle 14 are horizontally and fixedly provided with roller frames 15, roller shafts are vertically and rotatably arranged in the roller frames 15, third transverse rollers 16 are coaxially and fixedly arranged on the roller shafts, and the third transverse rollers 16 are abutted against the inner side walls of track grooves 17 above the third tracks 12. A third vertical roller 28 is coaxially and fixedly connected to the output end of the third motor, and the third vertical roller 28 abuts against the inner bottom wall of the track groove 17 below the third track 12. When the third vertical roller 28 is placed on the horizontal frame, the third vertical roller 28 is located in the slide groove 22 of the second frame body 13, and the side of the third detection vehicle 14 facing the magnet is attracted by the electromagnet. The middle part level of third detection car 14 runs through and is equipped with first horizontal groove 23, and the up end of first support body 21 can be supported with the interior upper wall in first horizontal groove 23 mutually, and first support body 21 can hold up third detection car 14.
The bottom of the third detection vehicle 14 is fixedly provided with a detection table 29, and the bottom of the detection table 29 is provided with a connector, wherein the connector comprises a hollow spherical connecting shell 18, a connecting ball 30 and a connecting rod 19. The bottom of connecting shell 18 is equipped with the opening, and connecting ball 30 sliding contact sets up in connecting shell 18, and the upper end and the connecting ball 30 fixed connection of connecting rod 19, the lower extreme and the detector 20 fixed connection of connecting rod 19. The detecting instrument 20 is a dial indicator, and the detecting end thereof can contact with the upper end face of the reference plate 7.
The specific implementation process is as follows:
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the present invention.
Claims (6)
1. Portable bridge amount of deflection detector, its characterized in that: the bridge comprises a first track and a first detection vehicle which are arranged on a pier, a second track and a second detection vehicle which are arranged on a footpath of a bridge floor, and a third track arranged on the lower end surface of the bridge floor; the first track is along the height direction of the pier, the second track is along the width direction of the footpath, and the third track is along the width direction of the bridge deck; the first detection vehicle can climb upwards along the first track, and a reference plate is horizontally arranged on the first detection vehicle; the second detects the car and can remove along the second track, and the second is detected and is equipped with the extension frame of buckling downwards on the car, the lower extreme that extends the frame is equipped with the horizontal stand, is equipped with the third on the horizontal stand and detects the car, and the third detects the car and can remove along the third track, and the bottom that the third detected the car is equipped with detects the platform, detects the bottom of platform and is equipped with the detector, the detector can contact with the up end of benchmark board.
2. The mobile bridge deflection detector of claim 1, wherein: the two first rails are respectively arranged on two sides of the bridge pier, and the first rails are in a rack shape; two first detection cars include two first gyro wheels respectively, and the outer wall of first gyro wheel is the gear form, and first gyro wheel can mesh with first track, and the both sides of two first detection cars all are through first link fixed connection, the benchmark board level is fixed to be set up on one of them first detection car.
3. The mobile bridge deflection detector of claim 2, wherein: the second rail is pre-buried and arranged on the footpath, first fixing plates extend outwards from two sides of the upper end of the second rail, first screw holes are formed in the first fixing plates, a first cover plate capable of covering the second rail is placed on the first fixing plates, and second screw holes aligned with the first screw holes are formed in the first cover plate; the second detects the car and includes four second gyro wheels, and the second gyro wheel can be gone into and remove in the second track by the card, the bottom both sides of second detection car are equipped with the side base, and when the second gyro wheel card was gone into the second track, the side base contacted with the up end of pavement.
4. The mobile bridge deflection detector of claim 3, wherein: the lower end surface of the bridge floor is provided with two opposite third tracks, and the third tracks are in a shape of Chinese character 'shan' and form an upper track groove and a lower track groove; the third detection vehicle comprises two sets of third transverse rollers and two third vertical rollers, the third transverse rollers are abutted to the inner side wall of the track groove above the third transverse rollers, and the third vertical rollers are abutted to the inner bottom wall of the track groove below the third transverse rollers.
5. The mobile bridge deflection detector of claim 4, wherein: the horizontal stand includes first support body and two second support bodies, the third detects the car and goes up the level and is equipped with the first horizontal groove that is used for holding first support body, two the second support body is located the both sides of first support body, is equipped with the chute that is used for bearing the vertical gyro wheel of third on the second support body.
6. The mobile bridge deflection detector of claim 5, wherein: the bottom of examining test table is equipped with the connector, the connector is including being the spherical connecting shell of cavity, connection ball and connecting rod, the bottom of connecting the shell is equipped with the opening, connect ball sliding contact and set up in connecting the shell, the upper end and the connection ball of connecting rod are connected, the lower extreme and the detector of connecting rod are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010390066.1A CN111537169B (en) | 2020-05-11 | 2020-05-11 | Movable bridge deflection detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010390066.1A CN111537169B (en) | 2020-05-11 | 2020-05-11 | Movable bridge deflection detector |
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| Publication Number | Publication Date |
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| CN111537169A CN111537169A (en) | 2020-08-14 |
| CN111537169B true CN111537169B (en) | 2021-09-28 |
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| CN202010390066.1A Expired - Fee Related CN111537169B (en) | 2020-05-11 | 2020-05-11 | Movable bridge deflection detector |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113125093B (en) * | 2021-03-15 | 2023-06-30 | 山西省交通建设工程质量检测中心（有限公司） | Road and bridge detection device |
| CN114323509A (en) * | 2021-11-18 | 2022-04-12 | 中交一公局集团有限公司 | Bridge deflection detection equipment and detection method thereof |
| CN114199484B (en) * | 2021-11-22 | 2024-04-19 | 中城建勘(浙江)检测科技有限公司 | Portable bridge deflection check out test set |
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