CN111458089A

CN111458089A - Bridge deflection detection system

Info

Publication number: CN111458089A
Application number: CN202010431371.0A
Authority: CN
Inventors: 李华强
Original assignee: Wenzhou Concrete Chengweiyu Technology Co ltd
Current assignee: Xinjiang production and construction corps construction engineering quality inspection center Co.,Ltd.; XINJIANG PRODUCTION AND CONSTRUCTION CORPS CONSTRUCTION ENGINEERING SCIENCE AND TECHNOLOGY INSTITUTE CO.,LTD.
Priority date: 2020-05-20
Filing date: 2020-05-20
Publication date: 2020-07-28
Anticipated expiration: 2040-05-20
Also published as: CN111458089B

Abstract

The invention relates to the technical field of bridge engineering, and particularly discloses a bridge deflection detection system, which comprises a track unit, a climbing unit and a connecting unit; the track unit comprises a transportation track arranged on the pier, the climbing unit comprises a plurality of climbing vehicles, and the climbing vehicles are arranged on the transportation track and can move upwards along the transportation track; the connecting unit comprises a connecting seat and a horizontal plate, the connecting seat is detachably arranged on the climbing unit, the horizontal plate is arranged on the connecting seat, a horizontal rail is arranged on the horizontal plate, a horizontal vehicle capable of moving horizontally is arranged on the horizontal rail, a jacking device is arranged on the horizontal vehicle, and a dial indicator is arranged on the output end of the jacking device. The invention aims to solve the problem of high difficulty in detecting the deflection of part of bridges.

Description

Bridge deflection detection system

Technical Field

The invention relates to the technical field of bridge engineering, and particularly discloses a bridge deflection detection system.

Background

The safety of the bridge is evaluated after the bridge is subjected to completion and acceptance and used for a certain period of time, static and dynamic load tests are usually carried out during the safety evaluation, the deformation, namely deflection, of the structure is measured during the static load tests, and the measuring method is generally detected by using a dial indicator. Generally, measure with the contact of percentage table and bridge bottom during the detection, because the height of bridge is higher, so generally use climbing mechanism to jack up the percentage table to the bridge bottom, measure again. The method for measuring has certain problems: the lower part of a part of bridges is inconvenient for vehicles to run and difficult to carry jacking equipment, and the jacking equipment is difficult to meet the requirement of jacking height when the bridges are high; for some special bridges, the measurement difficulty is higher when a greening area or a water area is arranged below the bridge.

Disclosure of Invention

The invention aims to provide a bridge deflection detection system to solve the problem that the deflection detection difficulty of a part of bridges is high.

In order to achieve the purpose, the basic scheme of the invention is as follows:

bridge amount of deflection detecting system, its characterized in that: comprises a track unit, a climbing unit and a connecting unit; the track unit comprises a transportation track arranged on the pier, the climbing unit comprises a plurality of climbing vehicles, and the climbing vehicles are arranged on the transportation track and can move upwards along the transportation track; the connecting unit comprises a connecting seat and a horizontal plate, the connecting seat is detachably arranged on the climbing unit, the horizontal plate is arranged on the connecting seat, a horizontal rail is arranged on the horizontal plate, a horizontal vehicle capable of moving horizontally is arranged on the horizontal rail, a jacking device is arranged on the horizontal vehicle, and a dial indicator is arranged on the output end of the jacking device.

Optionally, the transportation track comprises two steel rails, each steel rail comprises a pre-embedded plate, two track plates and a limiting plate, the two track plates are parallel to each other, one ends of the two track plates are fixedly connected with the pre-embedded plate, the other ends of the track plates are connected with the limiting plate, and a plurality of through grooves are horizontally formed in the track plates; the climbing vehicle comprises a shell, a first motor and a climbing wheel, wherein the first motor is arranged in the shell, a first gear is arranged on the output end of the first motor, two rotating shafts and a gear shaft are rotatably arranged in the shell, a second gear is arranged on each rotating shaft, a third gear is arranged on each gear shaft, one second gear is meshed with the first gear, the other second gear is meshed with the third gear, the third gear is simultaneously meshed with the first gear, the climbing wheel is coaxially arranged on the rotating shafts, a plurality of climbing teeth are arranged on the climbing wheel, and the climbing teeth can be embedded into through grooves; the climbing unit further comprises a first connecting plate, and two ends of the first connecting plate are detachably connected with two adjacent climbing vehicles respectively.

Optionally, two opposite side walls of the pier are provided with a transportation rail and a climbing vehicle, the climbing unit further comprises a second connecting plate, and two ends of the second connecting plate are detachably connected with the climbing vehicles on two sides of the pier respectively.

Optionally, a power supply shell is detachably arranged on the second connecting plate, and a mobile power supply is installed in the power supply shell.

Optionally, a support plate is vertically connected to the first connecting plate, a plurality of sets of mounting grooves are formed in the support plate, a plurality of first screw holes are formed in the mounting grooves, and a plurality of support holes are formed in the bottom of the horizontal plate; the connecting unit further comprises a supporting rod, a supporting head capable of being inserted into the supporting hole is arranged at one end of the supporting rod, a supporting seat is arranged at the other end of the supporting rod, a second screw hole capable of being aligned with the first screw hole is formed in the supporting seat, and the supporting seat can be embedded into the mounting groove and is fixedly connected with the mounting groove through a bolt.

Optionally, still be equipped with the controller on the output of jacking ware, the controller includes first telescopic link and second telescopic link, and first telescopic link is hollow structure, the second telescopic link cup joints in first telescopic link, is equipped with the elastic component in the first telescopic link, and the elastic component is connected with the second telescopic link, is provided with the switch that is used for controlling the jacking ware to close in the first telescopic link, can closed switch when the second telescopic link moves down.

The working principle and the beneficial effects of the scheme are as follows:

1. in this scheme pre-buried transportation track that has set up on the pier, the transportation track can not exert an influence to the structure of pier, can guarantee the security. Meanwhile, the climbing vehicle can climb upwards along the transportation track to transport the dial indicator upwards, and then the horizontal vehicle can transport the dial indicator to the position right below the middle part of the bridge to complete measurement. Only need the manual work in this scheme to install the climbing car on the transportation track, control again the climbing car can, and the climbing car is whole less, the transportation of being convenient for, rethread first connecting plate and second connecting plate are together fixed with each climbing car during the installation, and the installation is also comparatively simple and convenient. For bridges with greening areas or water areas below, the deflection of the bridge can be detected without going to the position under the middle of the bridge by adopting the scheme, and for areas with larger water areas, the climbing vehicle can be transported to the bridge piers by adopting a water transportation mode and then installed, so that the problem of high difficulty in detecting the deflection of the bridge is solved.

2. Still be provided with the jacking ware in this scheme, when the car that climbs upwards transports the bridge bottom with the percentage table, reuse the jacking ware to further adjust the distance between percentage table and the bridge bottom, the transportation precision that makes progress of jacking ware is higher, can guarantee measurement accuracy.

3. Because partial bridge span is big, so the length of horizontal plate is generally longer, and the crooked situation then can take place for the horizontal plate, is provided with the bracing piece in this scheme, and the both ends of bracing piece are connected with horizontal plate and backup pad respectively, and it can play the supporting role to the horizontal plate, guarantees the levelness of horizontal plate.

4. The controller is arranged in the scheme, and the controller is used for controlling the jacking device to be closed when the dial indicator is just abutted against the bottom of the bridge, so that the measurement precision of the dial indicator is further ensured.

Drawings

FIG. 1 is a schematic structural diagram of the present embodiment;

FIG. 2 is a schematic view of a part of the structure of the connection unit;

FIG. 3 is a schematic view of a portion of the structure of the horizontal plate, the support plate and the support rod;

FIG. 4 is a schematic structural view of a steel rail;

FIG. 5 is a schematic view of the internal structure of the climbing vehicle;

FIG. 6 is a schematic view of the interior structure of the horizontal vehicle;

fig. 7 is a schematic structural diagram of the controller.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the climbing device comprises a pier 1, a transportation rail 2, a climbing vehicle 3, a first connecting plate 4, a second connecting plate 5, a supporting plate 6, a connecting seat 7, a horizontal plate 8, a horizontal rail 9, a horizontal vehicle 10, a jacking device 11, a mounting seat 12, a dial indicator 13, a controller 14, a pre-embedded plate 15, a rail plate 16, a through groove 17, a limiting plate 18, a mounting groove 19, a supporting rod 20, a supporting head 21, a supporting seat 22, a supporting hole 23, a power supply shell 24, a first motor 25, a first gear 26, a gear shaft 27, a third gear 28, a rotating shaft 29, a second gear 30, climbing teeth 31, a first telescopic rod 32, a second telescopic rod 33, a spring 34, a switch 35, a vehicle shell 36, a horizontal hole 37, a second motor 38 and a walking wheel 39.

Examples

The embodiment is basically as shown in fig. 1 and fig. 2:

the bridge deflection detection system comprises a track unit, a climbing unit and a connecting unit.

Referring to fig. 4, the track unit includes a transportation track 2 provided on the pier 1, and the transportation track 2 includes two rails including a pre-buried plate 15, two track plates 16, and a limiting plate 18. The four pre-buried plates 15 are two and are a set of pre-buried setting respectively in the both sides of pier 1, and track board 16 is parallel to each other and one end and pre-buried plate 15 fixed connection, track board 16's the other end and the limiting plate 18 fixed connection who is the font of falling U, and track board 16 is improved level and is equipped with a plurality of logical grooves 17, and a plurality of logical grooves 17 are vertical arranges.

With reference to fig. 3 and 5, the climbing unit comprises a plurality of climbing cars 3, a first connecting plate 4 and a second connecting plate 5. The climbing vehicle 3 is arranged on the transport rail 2 and can move upwards along the transport rail 2. The climbing vehicle 3 comprises a housing, a first electric motor 25 and climbing wheels. The first motor 25 is fixedly arranged in the shell, a first gear 26 is coaxially and fixedly arranged on the output end of the first motor 25, two rotating shafts 29 and a gear shaft 27 are rotatably arranged in the shell, a second gear 30 is coaxially and fixedly arranged on the rotating shafts 29, a third gear 28 is coaxially and fixedly arranged on the gear shaft 27, one of the second gears 30 is meshed with the first gear 26, the other second gear 30 is meshed with the third gear 28, and the third gear 28 is also meshed with the first gear 26. The climbing wheel is coaxially and fixedly arranged on the rotating shaft 29, a plurality of climbing teeth 31 are integrally formed on the climbing wheel, and the climbing teeth 31 can be embedded into the through grooves 17. Two ends of the first connecting plate 4 are respectively and fixedly connected with two adjacent climbing vehicles 3 through bolts. The lower part of the first connecting plate 4 is fixedly connected with a supporting plate 6 through a bolt, a plurality of groups of mounting grooves 19 are formed in the supporting plate 6, and a plurality of first screw holes are formed in the mounting grooves 19. The two ends of the second connecting plate 5 are fixedly connected with the climbing vehicles 3 on the two sides of the pier 1 through bolts respectively, the two ends of the second connecting plate 5 are of plate-shaped structures, the middle of the second connecting plate is of a plurality of columnar structures, and the two ends of each columnar structure are distributed and connected with the two plate-shaped structures. The second connecting plate 5 is detachably provided with a power supply shell 24, and a mobile power supply is installed in the power supply shell 24 and can supply power to corresponding electrical equipment.

Referring to fig. 6 and 7, the connecting unit includes a connecting base 7, a horizontal plate 8, a support rod 20 and a horizontal vehicle 10, wherein the connecting base 7 is fixedly disposed on the first connecting plate 4 by bolts. The horizontal plate 8 is fixedly arranged on the connecting seat 7 through bolts, and two columnar horizontal rails 9 are fixedly arranged on the horizontal plate 8. The bottom slope of horizontal plate 8 is equipped with a plurality of support holes 23, and the fixed support head 21 that can insert support hole 23 that is equipped with in one end of bracing piece 20, and the other end of bracing piece 20 is equipped with supporting seat 22, is equipped with the second screw that can align with first screw on supporting seat 22, and supporting seat 22 can imbed in mounting groove 19 and through bolt and mounting groove 19 fixed connection. The horizontal vehicle 10 comprises a vehicle shell 36, two horizontal holes 37 in clearance fit with the horizontal rail 9 are formed in the vehicle shell 36, a second motor 38 is fixedly arranged in the horizontal vehicle 10, a travelling wheel 39 is arranged at the output end of the second motor 38, and the travelling wheel 39 abuts against the upper end of the horizontal plate 8. The fixed jacking ware 11 that is equipped with in upper end of horizontal car 10, jacking ware 11 can be electric jar or lead screw module, and fixed mount pad 12 that is equipped with on the output of jacking ware 11, and the installation is sat and is dismantled being connected with percentage table 13. Still fixedly on the output of jacking ware 11 being equipped with controller 14, controller 14 includes first telescopic link 32 and second telescopic link 33, first telescopic link 32 is hollow structure, second telescopic link 33 cup joints in first telescopic link 32 and the top of second telescopic link 33 is higher than the top of percentage table 13, first telescopic link 32 internal fixation is equipped with spring 34, spring 34 and second telescopic link 33 fixed connection, be provided with in the first telescopic link 32 and be used for controlling the switch 35 that jacking ware 11 closed, second telescopic link 33 can closed switch 35 when moving down.

The specific implementation process is as follows:

if the water area is below the bridge to be detected, the climbing vehicle 3 and other parts are transported to the position below the pier 1 by a water transportation mode and then installed. During installation, the climbing teeth 31 on the transport vehicles are firstly clamped into the through grooves 17 of the track plate 16 from the lower part of the transport track 2, and then the two adjacent transport vehicles are connected through the first connecting plate 4; and then the transport vehicles on the two sides are connected through a second connecting plate 5, and at the moment, the four transport vehicles form a whole and climb upwards together. Then, the support plate 6 and the connecting base 7 are fixed to the first connecting plate 4, and the power supply case 24 is mounted on the second connecting plate 5 in this order, and the circuit is connected. And then the horizontal plate 8 is fixed on the connecting seat 7, and the supporting rod 20 is arranged between the horizontal plate 8 and the supporting plate 6, so that the supporting rod 20 supports the horizontal plate 8, and the whole detection system is installed at the moment.

During the use, start first motor 25, tooth 31 that climbs rotates and upwards climbs, it is close to the bridge bottom to percentage table 13, then close first motor 25, restart horizontal car 10 makes percentage table 13 move to bridge middle part below, restart jacking ware 11, jacking ware 11 is with percentage table 13 and 14 ascending jacking of controller, second telescopic link 33 earlier contacts bottom the bridge this moment, second telescopic link 33 moves down and push down switch 35 under bridge bottom reaction force, switch 35 presses back jacking ware 11 and closes, the top of percentage table 13 just offsets bottom the bridge this moment, then can measure.

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

1. Bridge amount of deflection detecting system, its characterized in that: comprises a track unit, a climbing unit and a connecting unit; the track unit comprises a transportation track arranged on the pier, the climbing unit comprises a plurality of climbing vehicles, and the climbing vehicles are arranged on the transportation track and can move upwards along the transportation track; the connecting unit comprises a connecting seat and a horizontal plate, the connecting seat is detachably arranged on the climbing unit, the horizontal plate is arranged on the connecting seat, a horizontal rail is arranged on the horizontal plate, a horizontal vehicle capable of moving horizontally is arranged on the horizontal rail, a jacking device is arranged on the horizontal vehicle, and a dial indicator is arranged on the output end of the jacking device.

2. The bridge deflection detection system of claim 1 wherein: the transportation track comprises two steel rails, each steel rail comprises a pre-embedded plate, two track plates and a limiting plate, the two track plates are parallel to each other, one ends of the two track plates are fixedly connected with the pre-embedded plate, the other ends of the track plates are connected with the limiting plate, and a plurality of through grooves are horizontally formed in the track plates; the climbing vehicle comprises a shell, a first motor and a climbing wheel, wherein the first motor is arranged in the shell, a first gear is arranged on the output end of the first motor, two rotating shafts and a gear shaft are rotatably arranged in the shell, a second gear is arranged on each rotating shaft, a third gear is arranged on each gear shaft, one second gear is meshed with the first gear, the other second gear is meshed with the third gear, the third gear is simultaneously meshed with the first gear, the climbing wheel is coaxially arranged on the rotating shafts, a plurality of climbing teeth are arranged on the climbing wheel, and the climbing teeth can be embedded into through grooves; the climbing unit further comprises a first connecting plate, and two ends of the first connecting plate are detachably connected with two adjacent climbing vehicles respectively.

3. The bridge deflection detection system of claim 2 wherein: two opposite side walls on the pier are provided with a transportation rail and a climbing vehicle, the climbing unit further comprises a second connecting plate, and two ends of the second connecting plate are detachably connected with the climbing vehicles on two sides of the pier respectively.

4. The bridge deflection detection system of claim 3 wherein: the power supply shell can be detachably arranged on the second connecting plate, and a mobile power supply is installed in the power supply shell.

5. The bridge deflection detection system of claim 4 wherein: the first connecting plate is vertically connected with a supporting plate, a plurality of groups of mounting grooves are formed in the supporting plate, a plurality of first screw holes are formed in the mounting grooves, and a plurality of supporting holes are formed in the bottom of the horizontal plate; the connecting unit further comprises a supporting rod, a supporting head capable of being inserted into the supporting hole is arranged at one end of the supporting rod, a supporting seat is arranged at the other end of the supporting rod, a second screw hole capable of being aligned with the first screw hole is formed in the supporting seat, and the supporting seat can be embedded into the mounting groove and is fixedly connected with the mounting groove through a bolt.

6. The bridge deflection detection system of claim 5 wherein: still be equipped with the controller on the output of jacking ware, the controller includes first telescopic link and second telescopic link, and first telescopic link is hollow structure, the second telescopic link cup joints in first telescopic link, is equipped with the elastic component in the first telescopic link, and the elastic component is connected with the second telescopic link, is provided with the switch that is used for controlling the jacking ware to close in the first telescopic link, can close the switch when the second telescopic link moves down.