Deflection measuring and monitoring device used in bridge construction process

Abstract

The utility model relates to the technical field of deflection measuring and monitoring, in particular to a deflection measuring and monitoring device used in the bridge construction process, which comprises two side mounting plates and sliding blocks, U-shaped clamping seats are mounted on the side walls, close to each other, of the two sliding blocks, and connecting seats are rotatably arranged in the U-shaped clamping seats. Sliding rods are connected to the side walls, close to each other, of the two connecting bases, a cross rod is arranged between the two sliding rods in a sliding and annular sleeving mode, a cross plate is transversely arranged on the cross rod in a sliding mode, a plurality of floating rods longitudinally penetrate through the cross plate in a sliding mode, and the top ends of the floating rods are connected with measuring pieces capable of making contact with the bottom face of a bridge. When a single site is measured, the plurality of measuring pieces on the transverse plate can synchronously carry out settlement deflection measurement on the bottom surface of a bridge, so that deflection measurement data of the single site are divided into a plurality of groups and have comparison data, deflection data of the site is prevented from deviating, and the measuring and monitoring comprehensiveness and deviation prevention of the deflection device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of deflection measurement and monitoring, in particular to a deflection measurement and monitoring device used in a bridge construction process. Background Art

[0002] In the continuous cantilever casting construction of bridges, it is necessary to measure the deflection of the bridge and monitor it continuously during use. The deflection is the linear displacement of the axis of the rod in the direction perpendicular to the axis or the linear displacement of the mid-surface of the plate shell in the direction perpendicular to the mid-surface when subjected to force or non-uniform temperature changes. Because it involves the overall quality of the bridge, deflection measurement is an important measurement indicator. The deflection test is an important indicator and basis for ensuring that the bridge line shape reaches the expected design goals and reasonably adjusts the formwork elevation of each construction section. The accuracy of the measurement is very important. At this time, it is necessary to design a device that can measure and monitor the deflection of the bridge.

[0003] In the specific test process, the deflection measuring device is installed on the bottom surface of the bridge through the mounting structure, and then the longitudinal position change of the measuring piece abutting the bottom surface of the bridge is observed to record and monitor the settlement deflection of the bridge. However, in actual use, due to the limitations of the bridge width and the installation position of the side mounting plate, the measuring piece can only measure and monitor the deflection at a fixed position, and the measuring piece can often only measure and monitor the deflection in the forward direction of the bridge, making it difficult to perform offset measurement, resulting in incomplete measurement. Only a single measurement can be performed at a single location, making the measurement data of the location single and lacking in comparison, which may lead to certain deviations in the deflection data of the location.

[0004] Therefore, it is necessary to invent a deflection measurement monitoring device for solving the above problems during bridge construction. Utility Model Content

[0005] In order to address the deficiencies of the prior art, the purpose of the utility model is to provide a deflection measurement and monitoring device for use in a bridge construction process, which solves the problem in the prior art that, due to limitations in bridge width and the installation position of a side mounting plate, the measuring device can only measure and monitor the deflection at a fixed position, and the measuring device can often only measure and monitor the deflection in the forward direction of the bridge, making it difficult to perform offset measurement, resulting in an incomplete measurement. Only a single measurement can be performed at a single location, resulting in the measurement data of the location being single and lacking in comparison, which may lead to a certain deviation in the deflection data of the location.

[0006] In order to achieve the above objectives, the utility model adopts the following technical solutions:

[0007] The cam is an angular track that is formed on the side of the bridge frame and on the side of the bridge that is adapted to move the bridge forwards and backward to move the bridge forwards, wherein the cam is configured to move the bridge forward and backward to move the bridge forward in a direction opposite to the vertical direction.

[0008] As a preferred solution of the utility model, the measuring device includes a floating plate connected to the top of the floating rod and a measuring top ring installed at the center of the top surface of the floating plate and capable of contacting the bottom surface of the bridge; the top of the scale rod is connected to a floating block, and the top of the floating block is connected to the bottom end of the floating rod.

[0009] As a preferred solution of the utility model, the top end of the connecting seat is connected to a synchronization rod that can rotatably pass through the upper part of the U-shaped seat, the top end of the synchronization rod is connected to a pointer, and the top surface of the upper part of the U-shaped seat is provided with a scale for the pointer to point to so as to record the rotation angle, and the bottom end of the connecting seat is connected to a first locking stud that can rotatably pass through the lower part of the U-shaped seat, and the first locking stud is threadedly sleeved with a first locking nut on the portion below the U-shaped seat.

[0010] As a preferred solution of the utility model, guide grooves are provided at symmetrical positions on the outer peripheral side walls of the cross bar, a connecting column is connected to the center of the bottom end of the cross plate, a slide that can slide laterally along the cross bar is connected to the bottom end of the connecting column, and a guide block that can slide along the guide groove is connected to the adapter position of the slide.

[0011] As a preferred solution of the utility model, a slide groove is provided on the upper portion of the side mounting plate, a second locking stud which can slide along the slide groove is connected to the top of the slider, and a second locking nut is provided on the threaded sleeve of the portion of the second locking stud exposed outside the side mounting plate.

[0012] As a preferred solution of the utility model, a bracket is connected to the bottom of the outer peripheral side wall of the cross bar, and positioning studs are installed on both sides of the bottom end of the bracket. The bottom surface of the bracket slides laterally against a slide, and a movable groove for the positioning stud to pass longitudinally is opened in the slide, and a positioning nut is provided on the threaded sleeve of the positioning stud located below the slide, and the end of the top of the slide close to the side mounting plate is connected to a supporting ring through a connecting block, and the sliding rod slides laterally through the supporting ring.

[0013] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0014] In the utility model, according to the different widths of bridges, the length of the slide bar inserted in the cross bar is changed, thereby changing the lateral spacing between the two side mounting plates, so that the installation position of the side mounting plates can be adjusted according to the width of the bridge, making the installation position flexible and adjustable. In the actual measurement process, the positions of the two slide blocks in the side mounting plates are synchronously changed so that the axial direction of the cross bar is perpendicular to the forward direction of the bridge, so that the cross plate and the measuring piece can move linearly along the forward direction of the bridge, and then the settlement deflection measurement and monitoring in the linear direction are performed at different positions in the forward direction of the bridge. In the synchronization process, the non- The positions of the two sliders in the side mounting plate are changed synchronously. At this time, the slide bar automatically changes the length of the slide bar inserted in the cross bar, so that the axial direction of the cross bar is deflected from the forward direction of the bridge, thereby performing settlement deflection measurement and monitoring at the deflected position, and ultimately achieving settlement deflection measurement and monitoring in all directions, providing comprehensive measurement and monitoring. When measuring at a single location, multiple measuring pieces on the cross plate can synchronously perform settlement deflection measurement on the bottom surface of the bridge, so that the deflection measurement data of a single location has multiple groups of comparative data, avoiding deviations in the deflection data at that location, and improving the comprehensiveness and anti-deviation of the measurement and monitoring of the deflection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a front view structural schematic diagram of the utility model;

[0017] Figure 3 It is a schematic diagram of the top view structure of the utility model;

[0018] Figure 4 For this utility model Figure 1 A schematic diagram of the partially enlarged structure at center A;

[0019] Figure 5 For this utility model Figure 2 Schematic diagram of the cross-sectional structure at BB in the middle.

[0020] Description of reference numerals:

[0021] 1. Side mounting plate; 2. Slider; 3. U-shaped holder; 4. Cross bar; 5. Slide bar; 6. Connecting seat; 7. Synchronizing rod; 8. Pointer; 9. First locking stud; 10. First locking nut; 11. Bracket; 12. Positioning stud; 13. Positioning nut; 14. Slide plate; 15. Connecting block; 16. Support ring; 17. Slide groove; 18. Second locking stud; 19. Second locking nut; 20. Guide groove; 21. Slide; 22. Guide block; 23. Connecting column; 24. Cross plate; 25. L-shaped base frame; 26. Floating rod; 27. Floating plate; 28. Measuring top ring; 29. ​​Floating block; 30. Scale rod; 31. Fitting spring; 32. Movable groove. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0023] The utility model provides Figure 1-Figure 5 The deflection measurement and monitoring device for a bridge construction process shown in the figure comprises two side mounting plates 1 which can be mounted on both sides of the bottom surface of the bridge and a slider 2 which is slidably mounted in the side mounting plates 1. A U-shaped card seat 3 is mounted on one side wall of the two sliders 2 which are close to each other. A connecting seat 6 which can record the rotation angle is rotatably arranged in the U-shaped card seat 3. A sliding rod 5 is connected to one side wall of the two connecting seats 6 which are close to each other. A cross bar 4 is provided in a common sliding ring sleeve between the two sliding rods 5. The two sliding rods 5 are respectively located on both sides of the cross bar 4. The cross bar 4 is provided with a cross bar 4 which can slide laterally. The cross plate 24 is provided with an L-shaped base frame 25 on both sides of the bottom end of the cross plate 24, a plurality of floating rods 26 are longitudinally slidably penetrated in the cross plate 24, and the top end of the floating rod 26 is connected with a measuring piece that can contact the bottom surface of the bridge, and the portion of the floating rod 26 between the measuring piece and the cross plate 24 is sleeved with a fitting spring 31, and the bottom end of the floating rod 26 is connected with a scale rod 30 that can longitudinally slide through and extend to the bottom of the L-shaped base frame 25. When the measuring piece contacts the bottom surface of the bridge, the fitting spring 31 can be compressed to avoid problems such as bending caused by excessive elongation of the measuring piece.

[0024] The measuring part includes a floating plate 27 connected to the top of the floating rod 26 and a measuring top ring 28 installed at the center of the top surface of the floating plate 27 and capable of contacting the bottom surface of the bridge. A floating block 29 is connected to the top of a scale rod 30, the top of the floating block 29 is connected to the bottom end of the floating rod 26, and the measuring top ring 28 is in contact with the bottom surface of the bridge. At this time, the length of the scale rod 30 exposed to the L-shaped frame is the initial length. When the bridge has settlement deflection, the measuring top ring 28 will be compressed downward, and the length of the scale rod 30 exposed to the L-shaped frame 25 will be changed. The deflection data will be recorded by observing the verticality of the scale rod 30 exposed to the L-shaped frame 25, thereby completing the measurement and monitoring of the settlement deflection.

[0025] The top of the connecting seat 6 is connected to a synchronous rod 7 that can rotate and pass through the upper part of the U-shaped seat 3, and the top of the synchronous rod 7 is connected to a pointer 8, and the top surface of the upper part of the U-shaped seat 3 is provided with a scale for the pointer 8 to point to in order to record the rotation angle, and the bottom end of the connecting seat 6 is connected to a first locking stud 9 that can rotate and pass through the lower part of the U-shaped seat 3. The first locking stud 9 is located below the U-shaped seat 3 and the threaded sleeve is provided with a first locking nut 10. The positions of the two sliders 2 in the side mounting plate 1 are changed asynchronously. At this time, the slide bar 5 automatically changes the length passed through the cross bar 4, so that the axial direction of the cross bar 4 is deflected from the forward direction of the bridge. At this time, the connecting seat 6 at the end of the slide bar 5 rotates synchronously in the U-shaped seat 3, and the synchronous rod 7 at this time drives the pointer 8 to rotate synchronously and point to the corresponding position of the scale, and the deflection angle is recorded by observing the scale position pointed to by the pointer 8.

[0026] Guide grooves 20 are provided at symmetrical positions on the outer peripheral side walls of the cross bar 4, a connecting column 23 is connected to the center of the bottom end of the cross plate 24, a slide 21 that can slide laterally along the cross bar 4 is connected to the bottom end of the connecting column 23, and a guide block 22 that can slide along the guide groove 20 is connected to the adapting position of the slide 21. The guide block 22 slides synchronously with the slide 21 along the guide groove 20, thereby improving the sliding stability of the slide 21 and avoiding the deflection of the slide 21.

[0027] A slide groove 17 is opened on the upper part of the side mounting plate 1, and a second locking stud 18 that can slide along the slide groove 17 is connected to the top of the sliding block 2. The second locking stud 18 is threadedly sleeved with a second locking nut 19 on the part exposed outside the side mounting plate 1. When the length of the sliding bar 5 exposed by the cross bar 4 changes, the position of the two supporting rings 16 can be adjusted by changing the position of the sliding plate 14 under the bracket 11, so that the supporting ring 16 can lift the sliding bar 5 at a position close to the side mounting plate 1, thereby improving the stability of the lateral sliding of the sliding bar 5.

[0028] A bracket 11 is connected to the bottom of the outer peripheral side wall of the cross bar 4, and positioning studs 12 are installed on both sides of the bottom end of the bracket 11. A slide plate 14 is laterally slidably abutted against the bottom surface of the bracket 11, and a movable groove 32 for the positioning stud 12 to penetrate longitudinally is opened in the slide plate 14, and a positioning nut 13 is provided on the threaded sleeve of the part of the positioning stud 12 located below the slide plate 14. The end of the top of the slide plate 14 close to the side mounting plate 1 is connected to a supporting ring 16 through a connecting block 15, and the slide bar 5 is laterally slidably penetrated in the supporting ring 16.

[0029] In the utility model, according to the different widths of the bridge, by changing the length of the slide bar 5 inserted in the cross bar 4, the lateral spacing between the two side mounting plates 1 is changed, so that the installation position of the side mounting plates 1 can be adjusted according to the width of the bridge, so that the installation position can be flexibly adjusted. In the actual measurement process, the positions of the two slide blocks 2 in the side mounting plates 1 are synchronously changed so that the axial direction of the cross bar 4 is perpendicular to the forward direction of the bridge, so that the cross plate 24 and the measuring piece can move linearly along the forward direction of the bridge, and then the settlement deflection measurement and monitoring in the linear direction are performed at different positions in the forward direction of the bridge. In the synchronous process, different By changing the positions of the two sliders 2 in the side mounting plate 1, the slide bar 5 automatically changes the length of the slide bar 5 passing through the cross bar 4, so that the axial direction of the cross bar 4 is deflected from the forward direction of the bridge, thereby performing settlement deflection measurement and monitoring at the deflected position, and finally achieving settlement deflection measurement and monitoring in all directions, providing comprehensive measurement and monitoring. When measuring at a single location, multiple measuring pieces on the cross plate 24 can synchronously perform settlement deflection measurement on the bottom surface of the bridge, so that the deflection measurement data of a single location has multiple groups and comparative data, avoiding deviations in the deflection data at the location, and improving the comprehensiveness and anti-bias of the measurement and monitoring of the deflection device.

[0030] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A deflection measurement and monitoring device for use in bridge construction, characterized in that: The invention comprises two side mounting plates (1) which can be mounted on both sides of the bottom surface of the bridge, and a slider (2) which is slidably mounted in the side mounting plates (1), wherein a U-shaped holder (3) is mounted on one side wall of the two sliders (2) which are close to each other, a connecting seat (6) which can record the rotation angle is rotatably arranged in the U-shaped holder (3), and a sliding rod (5) is connected to one side wall of the two connecting seats (6) which are close to each other, and a cross bar (4) is provided in a common sliding ring sleeve between the two sliding rods (5), and the two sliding rods (5) are respectively located on both sides of the cross bar (4). The cross bar (4) is provided with a cross plate (24) for transverse sliding, and L-shaped base frames (25) are installed on both sides of the bottom end of the cross plate (24), and a plurality of floating rods (26) are longitudinally slidably penetrated in the cross plate (24), and the top ends of the floating rods (26) are connected to measuring pieces that can contact the bottom surface of the bridge, and the portion of the floating rods (26) located between the measuring pieces and the cross plate (24) is sleeved with a fitting spring (31), and the bottom ends of the floating rods (26) are connected to a scale rod (30) that can longitudinally slide through and extend to the bottom of the L-shaped base frame (25).

2. A deflection measurement and monitoring device for use in bridge construction according to claim 1, characterized in that: The measuring member comprises a floating plate (27) connected to the top end of a floating rod (26) and a measuring top ring (28) installed at the center of the top surface of the floating plate (27) and capable of contacting the bottom surface of the bridge. The top end of the scale rod (30) is connected to a floating block (29), and the top end of the floating block (29) is connected to the bottom end of the floating rod (26).

3. The deflection measurement and monitoring device for bridge construction according to claim 1, characterized in that: The top end of the connecting seat (6) is connected to a synchronization rod (7) which is rotatable and passes through the upper part of the U-shaped clamping seat (3); the top end of the synchronization rod (7) is connected to a pointer (8); and the top surface of the upper part of the U-shaped clamping seat (3) is provided with a scale for the pointer (8) to point to so as to record the rotation angle; the bottom end of the connecting seat (6) is connected to a first locking stud (9) which is rotatable and passes through the lower part of the U-shaped clamping seat (3); and the threaded sleeve of the first locking stud (9) located below the U-shaped clamping seat (3) is provided with a first locking nut (10).

4. The deflection measurement and monitoring device for bridge construction according to claim 1, characterized in that: The outer peripheral side walls of the cross bar (4) are provided with guide grooves (20) at symmetrical positions, the bottom center of the cross plate (24) is connected to a connecting column (23), the bottom of the connecting column (23) is connected to a slide (21) that can slide laterally along the cross bar (4), and the slide (21) is connected to a guide block (22) that can slide along the guide groove (20) at a matching position.

5. The deflection measurement and monitoring device for bridge construction according to claim 1, characterized in that: A slide groove (17) is formed on the upper portion of the side mounting plate (1), a second locking stud (18) which can slide along the slide groove (17) is connected to the top end of the slide block (2), and a second locking nut (19) is threadedly sleeved on a portion of the second locking stud (18) exposed outside the side mounting plate (1).

6. The deflection measurement and monitoring device for bridge construction according to claim 1, characterized in that: The bottom of the outer peripheral side wall of the cross bar (4) is connected to a bracket (11), and positioning studs (12) are installed on both sides of the bottom end of the bracket (11). The bottom surface of the bracket (11) is laterally slidably abutted against a slide plate (14), and a movable groove (32) for the positioning stud (12) to penetrate longitudinally is provided in the slide plate (14), and a positioning nut (13) is provided on the threaded sleeve of the part of the positioning stud (12) located below the slide plate (14). The top end of the slide plate (14) close to the side mounting plate (1) is connected to a supporting ring (16) through a connecting block (15), and the slide bar (5) is laterally slidably penetrated in the supporting ring (16).

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