CN212585942U - Bridge load test deflection test connecting device - Google Patents
Bridge load test deflection test connecting device Download PDFInfo
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- CN212585942U CN212585942U CN202020869335.8U CN202020869335U CN212585942U CN 212585942 U CN212585942 U CN 212585942U CN 202020869335 U CN202020869335 U CN 202020869335U CN 212585942 U CN212585942 U CN 212585942U
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Abstract
The utility model discloses a bridge load test amount of deflection test connecting device belongs to bridge engineering technique. The structure of the instrument comprises an instrument box body, a level gauge arranged on a bottom plate of the box body, an inclined strut fixed in the box body, a cross strut fixed in the box body, a counterweight cylinder fixed on the inclined strut and the cross strut, a counterweight block placed in the counterweight cylinder, a deflection gauge bracket fixed on the bottom plate and a deflection gauge arranged on the deflection gauge bracket. The utility model relates to a rationally, compact structure and convenient to use.
Description
Technical Field
The utility model relates to a bridge load test amount of deflection test connecting device belongs to bridge engineering technique.
Background
The bridge structure deflection test is one of important parameters for testing whether the bearing capacity of the structure meets the design standard. The deflection change condition of the bridge is tested through a bridge load test so as to reflect the integral rigidity condition of the bridge structure, thereby judging the safety state of the bridge.
In the existing bridge load test, a common test method is to adopt a level gauge for measurement. In the load test process, the level is erected on the bridge floor to test the deflection change of the section measuring point under each working condition, the method needs point-by-point testing and at least 2 persons to operate, the testing process is slow, manpower is consumed, the testing efficiency is influenced, meanwhile, the testing precision is not easy to guarantee under the influence of the self precision of the level, the personnel operation, the field environment and the like.
Disclosure of Invention
Aiming at the technical problems, the invention provides a bridge load test deflection test connecting device which is reasonable in structural design, convenient to process and manufacture, simple to operate, high in deflection test precision, and capable of effectively solving the problems that the test precision is not easy to guarantee, the field environment is affected and the like.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a bridge load test deflection test connecting device comprises an instrument box body and a level device arranged on a bottom plate of the box body, wherein the front surface of the box body is provided with a box body opening which is arranged to be a box door; a transverse support and an inclined support are arranged in the box body and used for fixing a counterweight cylinder, and a counterweight block is placed in the counterweight cylinder; the deflection meter bracket is fixed on the bottom plate, and the deflection meter is fixed on the deflection meter bracket; the top plate of the box body is provided with a round hole, the steel wire rope extends into the box body through the round hole, one end in the box body is connected with the balancing weight, the other end in the box body is connected with the wood block pasted on the beam bottom, and the wood block is pasted on the deflection measuring point position of the beam bottom.
In the invention, a deflection meter bracket, a deflection meter and a balancing weight are all arranged in a box body; the box body is placed on a flat ground.
In the invention, a deflection meter bracket is adsorbed on a box body bottom plate through an internal magnet, and a deflection meter is fixed above the deflection meter bracket; the balancing weight is suspended in the balancing weight cylinder through a steel wire rope, and the bottom of the balancing weight is contacted with a measuring head of the deflection meter.
In the invention, the side surface of the box body is provided with a round hole for the data wire of the deflection meter to penetrate out and is connected with a data acquisition instrument, thus realizing the automatic acquisition of deflection data.
In the invention, the number of the leveling instrument is one, and the leveling instrument is a circular leveling instrument.
In the invention, the box body is made of steel.
The invention has the following advantages:
1. the structure design is reasonable, the processing and the manufacture are convenient, the volume is small, the weight is light, and the carrying is convenient.
2. The steel wire rope is slender and has a small diameter, and the counterweight block is positioned in the box body, so that the windward area of a counterweight device formed by hanging the counterweight block by the steel wire rope is small, and the stability of the whole suspension system is good by combining the weight of the counterweight block.
3. The steel structure box body is adopted, the stability is good, the disturbance effect of wind load on the box body can be effectively prevented, and the normal work of the deflection collection system is guaranteed. After the instrument device is erected, the automatic measurement of the acquisition instrument can be used, the deflection observation is convenient, and if the acquisition instrument breaks down, the box door can be opened to measure and read data through the mode of manual reading.
4. The bottom plate of the box body is provided with the level gauge, so that the level gauge is convenient to adjust horizontally, and the accuracy of a deflection test result can be ensured.
In conclusion, the deflection test device has the advantages of reasonable structural design, simplicity in installation, arrangement and operation and accuracy in deflection test, and can effectively solve the problems of poor system stability, difficulty in ensuring deflection test precision and the like of the traditional deflection test system.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Wherein: 1. a level; 2. a box body bottom plate; 3. a flexure meter support; 4. bracing; 5. a box body; 6. a cross brace; 7. a balancing weight; 8. a counterweight cylinder; 9. a deflection meter; 10. a data acquisition line; 11. a side aperture; 12. a wire rope; 13. wood blocks; 14. an acquisition instrument; 15. a beam bottom; 16. a hoisting ring; 17. a counterweight hoisting ring; 18. a top plate.
Detailed Description
The invention comprises an instrument box body 5, a level 1 arranged on a bottom plate 2 of the box body 5, an inclined strut 4 fixed in the box body 5, a cross strut 6 fixed in the box body 5, a counterweight cylinder 8 fixed on the inclined strut 4 and the cross strut 6, a counterweight 7 placed in the counterweight cylinder 8, a deflection gauge bracket 3 fixed on the bottom plate 2 and a deflection gauge 9 arranged on the deflection gauge bracket 3.
The flexibility meter bracket 3 is adsorbed on the bottom plate 2 through an internal magnet, and the flexibility meter 9 is fixed at the upper end of the flexibility meter bracket 3.
The counterweight block 7 is suspended in the counterweight cylinder 8 through a steel wire rope 12, the wood block 13 is adhered to the beam bottom 15, the lower end of the wood block is provided with a hanging ring 16 for connecting the steel wire rope 12, and the other end of the steel wire rope 12 is connected to a counterweight block hanging ring 17.
The top plate 18 of the box body 5 is provided with a small hole for the steel wire rope to extend into.
The data acquisition line 10 extends out through a small hole 11 on the side surface of the box body 3 and is connected with an external acquisition instrument 14.
The testing instrument is a deflection meter 9, and a telescopic rod of the deflection meter 9 is in contact with a balancing weight 7.
The number of the levels 1 is one, and the levels are circular levels.
In practical use, the working process of the bridge load test deflection test connecting device mainly comprises the following steps:
the method comprises the following steps: determining the position of a beam bottom 15 test point, adhering a wood block 13 to the position of the beam bottom 15 test point, wherein a hanging ring 16 is installed on the wood block 13, and the hanging ring 16 is connected with a steel wire rope 12.
Step two: a box body 5 is arranged on a flat ground and leveled by a level 1, a flexibility meter bracket 3 is arranged on a bottom plate 2 of the box body, and a flexibility meter 9 is arranged on the flexibility meter bracket 3.
Step three: the counterweight 7 is placed in the counterweight cylinder 8, the counterweight hoisting ring 17 on the counterweight 7 is connected with the steel wire rope 12, so that the counterweight 7 is suspended in the counterweight cylinder 8, and the telescopic rod of the deflection meter 9 is contacted with the bottom of the counterweight 7.
Step four: the data acquisition line 10 is connected with the deflection meter 9, extends out through the small side hole 11 and is connected with the acquisition instrument 14.
Step five: and debugging and checking the instrument. Ensuring that the balancing weight 7 is contacted with the telescopic rod of the deflection meter 9; the collector 14 is powered on to check whether the data collection is normal.
Claims (5)
1. The utility model provides a bridge load test amount of deflection test connecting device which characterized in that: the instrument box comprises an instrument box body (5) and a level (1) arranged on a box body bottom plate (2), wherein the front surface of the box body (5) is provided with a box body opening and is arranged to be a box door; a cross brace (6) and an inclined brace (4) are arranged in the box body (5) and used for fixing a counterweight cylinder (8), and a counterweight block (7) is arranged in the counterweight cylinder (8); the flexibility meter bracket (3) is fixed on the bottom plate (2), and the flexibility meter (9) is fixed on the flexibility meter bracket (3); a round hole is formed in a box body top plate (18), a steel wire rope (12) extends into the box body (5) through the round hole, one end of the interior of the box body (5) is connected with a balancing weight (7), the other end of the interior of the box body is connected with a wood block (13) pasted on a beam bottom (15), and the wood block (13) is pasted on a deflection measuring point of the beam bottom (15).
2. The bridge load test deflection test connecting device of claim 1, wherein: the counterweight block (7) is suspended in the counterweight cylinder (8) through a steel wire rope (12), the wood block (13) is pasted on the beam bottom (15), the lower end of the wood block is provided with a hanging ring (16) for connecting the steel wire rope (12), and the other end of the steel wire rope (12) is connected to a counterweight hanging ring (17).
3. The bridge load test flexibility test connecting device according to claim 1 or 2, characterized in that a flexibility meter bracket (3) is adsorbed on the bottom plate (2) through an internal magnet, and a flexibility meter (9) is fixed at the upper end of the flexibility meter bracket (3); the telescopic rod of the deflection meter (9) is contacted with the counterweight block (7).
4. The bridge load test deflection test connecting device according to claim 3, wherein the data acquisition line (10) extends out through the small hole (11) on the side surface of the box body (5) and is connected with an external acquisition instrument (14).
5. The bridge load test flexibility test connecting device is characterized in that the number of the leveling devices (1) is one, and the leveling devices are circular leveling devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020869335.8U CN212585942U (en) | 2020-05-22 | 2020-05-22 | Bridge load test deflection test connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020869335.8U CN212585942U (en) | 2020-05-22 | 2020-05-22 | Bridge load test deflection test connecting device |
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| Publication Number | Publication Date |
|---|---|
| CN212585942U true CN212585942U (en) | 2021-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020869335.8U Active CN212585942U (en) | 2020-05-22 | 2020-05-22 | Bridge load test deflection test connecting device |
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| CN (1) | CN212585942U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114111541A (en) * | 2021-11-24 | 2022-03-01 | 长安大学 | Bridge dynamic deflection testing system and method based on stress rigidization effect |
| CN114279736A (en) * | 2021-12-29 | 2022-04-05 | 南通汉舟海洋科技有限公司 | Simple and rapid testing device for load test of balance beam for ship and using method thereof |
-
2020
- 2020-05-22 CN CN202020869335.8U patent/CN212585942U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114111541A (en) * | 2021-11-24 | 2022-03-01 | 长安大学 | Bridge dynamic deflection testing system and method based on stress rigidization effect |
| CN114111541B (en) * | 2021-11-24 | 2024-01-19 | 长安大学 | Bridge dynamic deflection test system and method based on stress rigidization effect |
| CN114279736A (en) * | 2021-12-29 | 2022-04-05 | 南通汉舟海洋科技有限公司 | Simple and rapid testing device for load test of balance beam for ship and using method thereof |
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