CN214667372U - Steel cable prestress detection device in external prestress structure - Google Patents
Steel cable prestress detection device in external prestress structure Download PDFInfo
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- CN214667372U CN214667372U CN202121056155.9U CN202121056155U CN214667372U CN 214667372 U CN214667372 U CN 214667372U CN 202121056155 U CN202121056155 U CN 202121056155U CN 214667372 U CN214667372 U CN 214667372U
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Abstract
The utility model discloses a cable wire prestressing force detection device among external prestressing force structure, including reaction frame and counter-force seat, just the reaction frame with the symmetry is provided with a plurality of location telescopic links between the counter-force seat, fixed mounting has the ring type pressure sensor who is used for detecting prestressing force size on the reaction frame, the reaction frame with be provided with between the counter-force seat and be used for the adjustment the reaction frame with the driving piece of counter-force seat interval, just the driving piece middle part is provided with the preformed hole that is used for the cable wire to run through, counter-force seat bottom symmetry is provided with two fastening holes, the fastening bolt who is used for fastening the cable wire is installed to the fastening hole internal thread. The utility model has the advantages of reasonable design, utilize the cooperation of punching jack and ring type pressure sensor, can carry out the prestressing force detection of cable wire in the external prestressing force structure fast conveniently, can also detect out the prestressing force size of cable wire in the external prestressing force structure directly perceivedly simultaneously, have simple structure, the simple operation's characteristics.
Description
Technical Field
The utility model relates to a prestressing force detection area especially relates to a cable wire prestressing force detection device among external prestressing force structure.
Background
With the further development of the external prestressing technology, in recent years, the external prestressing structure is gradually popularized and applied to the new construction of a large-span building engineering structure and a prestressed bridge structure, the reconstruction, the reinforcement and the maintenance of a prestressed concrete structure, however, as the external prestressing is not bonded, the external prestressing cable force changes along with the increase of the service life of the structure, so that the prestressing force is loosened to a certain extent, and therefore, the stress state of the prestressed steel beam needs to be detected regularly and adjusted in time.
However, the existing prestress detection device is complex in structure and inconvenient to detect the prestress of the in-vitro prestress structure, certain working difficulty is brought to field detection personnel, and certain defects exist.
Disclosure of Invention
An object of the utility model is to provide a cable wire prestressing force detection device among external prestressing force structure can realize the detection of external prestressing force structure prestressing force fast conveniently, has simple structure, simple operation's characteristics concurrently.
The utility model discloses a realize like this:
a steel cable prestress detection device in an external prestress structure comprises a reaction frame and a reaction seat, wherein a plurality of positioning telescopic rods are symmetrically arranged between the reaction frame and the reaction seat;
the steel cable pre-tightening device is characterized in that a ring-type pressure sensor used for detecting the size of pre-stress is fixedly mounted on the reaction frame, the reaction frame is provided with a driving piece used for adjusting the distance between the reaction frame and the reaction seat, a preformed hole used for steel cable penetration is formed in the middle of the driving piece, two fastening holes are symmetrically formed in the bottom of the reaction seat, and fastening bolts used for fastening the steel cable are mounted in internal threads of the fastening holes.
The ring-type pressure sensor is embedded on the reaction frame, and the central line of the ring-type pressure sensor coincides with the central axis of the reaction frame.
The driving piece adopts a center-penetrating jack.
The positioning telescopic rod comprises an outer fixing pipe and an inner connecting rod, and the outer fixing pipe is connected with the inner connecting rod in a sliding mode.
And the upper surface of the counter-force seat is provided with a chamfer guide hole matched with the piercing jack.
The utility model has the advantages of reasonable design, utilize the cooperation of punching jack and ring type pressure sensor, can carry out the prestressing force detection of cable wire in the external prestressing force structure fast conveniently, can also detect out the prestressing force size of cable wire in the external prestressing force structure directly perceivedly simultaneously, have simple structure, the simple operation's characteristics.
Drawings
Fig. 1 is a schematic view of the overall structure of a steel cable prestress detection device in an external prestress structure of the utility model;
fig. 2 is a schematic view of the reaction seat structure of the steel cable prestress detecting device in the external prestress structure of the present invention.
Fig. 3 is a side view of the steel cable prestress detection device in the external prestress structure of the present invention.
In the figure, 1, a reaction frame; 2. a counter-force seat; 3. positioning the telescopic rod; 4. an annular pressure sensor; 5. a drive member; 6. a fastening hole; 7. fastening a bolt; 8. an outer fixed tube; 9. an inner connecting rod; 10. and chamfering the guide hole.
Detailed Description
The invention will be further explained with reference to the drawings and the specific embodiments.
Referring to fig. 1, fig. 2 and fig. 3, a steel cable prestress detection device in an external prestress structure comprises a reaction frame 1 and a reaction base 2, wherein a plurality of positioning telescopic rods 3 are symmetrically arranged between the reaction frame 1 and the reaction base 2;
the steel cable prestress detection device is characterized in that a ring-type pressure sensor 4 used for detecting prestress is fixedly mounted on the reaction frame 1, the reaction frame 1 is provided with a driving piece 5 used for adjusting the distance between the reaction frame 1 and the reaction seat 2, the middle of the driving piece 5 is provided with a preformed hole used for a steel cable to penetrate through, two fastening holes 6 are symmetrically formed in the bottom of the reaction seat 2, and fastening bolts 7 used for fastening the steel cable are mounted in the fastening holes 6 through threads.
The ring-type pressure sensor 4 is embedded and installed on the reaction frame 1, and the central line of the ring-type pressure sensor 4 coincides with the central axis of the reaction frame 1. In the embodiment, the ring-type pressure sensor 4 is embedded and installed on the reaction frame 1, so that the ring-type pressure sensor 4 can be well positioned, the ring-type pressure sensor is prevented from position deviation, and the accuracy of a prestress detection result is ensured.
The driving piece 5 adopts a center-penetrating jack. In this embodiment, driving piece 5 adopts the jack of punching, can provide the required thrust of prestressing force detection, can also make things convenient for wearing out of cable wire among the external prestressing force structure simultaneously, conveniently carries out the prestressing force detection of cable wire among the external prestressing force structure.
The positioning telescopic rod 3 comprises an outer fixing tube 8 and an inner connecting rod 9, and the outer fixing tube 8 is connected with the inner connecting rod 9 in a sliding mode. In the present embodiment, the relative sliding between the outer fixed tube 8 and the inner connecting rod 9 can be synchronized with the reaction frame 1 and the reaction base 2 and positioned, thereby realizing the prestress detection of the wire rope in the external prestress structure.
And a chamfer guide hole 10 matched with the piercing jack is formed in the upper surface of the reaction seat 2. In this embodiment, the chamfer guide hole 10 is provided to facilitate the penetration of the steel cable into the center-penetrating jack, thereby facilitating the pre-stress detection of the steel cable in the external pre-stress structure.
The utility model provides an external prestressing force structure indicates the prestressing tendons to arrange in the prestressing force structure outside the main structure body cross-section.
When the steel cable prestress detection is carried out, the concrete operation steps are as follows:
(1) installation: the steel cable in the external prestress structure passes through a center hole of the reaction frame 1 and sequentially passes through the center penetrating jack and the reaction seat 2, when the anchorage device is tightly attached to the ring type pressure sensor 4, the bottom of the steel cable is fixed on the reaction seat 2 by using the fastening bolt 7, meanwhile, a plug is installed at the output end of the ring type pressure sensor 4, the steel cable is directly inserted into the controller and displays the prestress numerical value through the display screen, and the installation of the prestress detection device is completed at the moment. It is specifically noted that the controller here may be a single chip microcomputer or other controller, and the prestress data can be displayed in cooperation with a display screen, which is the prior art, and the specific structure is not described herein again.
(2) And (3) detection: and opening the center-penetrating jack to separate the reaction frame 1 from the reaction seat 2, and closing the center-penetrating jack when the anchorage device is jacked up from the reaction frame 1.
(3) Reading: the maximum reading displayed on the display screen is the prestress of the steel cable in the external prestress structure, and the whole test process of the prestress of the steel cable in the external prestress structure is completed.
To sum up, the utility model discloses utilize the cooperation of punching jack and ring type pressure sensor, can carry out the prestressing force detection of cable wire in the external prestressing force structure fast conveniently, can also detect out the prestressing force size of cable wire in the external prestressing force structure directly perceivedly simultaneously, have simple structure, the simple operation's characteristics.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, therefore, any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (5)
1. A steel cable prestress detection device in an external prestress structure comprises a reaction frame (1) and a reaction seat (2), wherein a plurality of positioning telescopic rods (3) are symmetrically arranged between the reaction frame (1) and the reaction seat (2);
the method is characterized in that: fixed mounting has ring type pressure sensor (4) that are used for detecting prestressing force size on reaction frame (1), reaction frame (1) with be provided with between reaction seat (2) and be used for the adjustment reaction frame (1) and driving piece (5) of reaction seat (2) interval, just driving piece (5) middle part is provided with the preformed hole that is used for the cable wire to run through, reaction seat (2) bottom symmetry is provided with two fastening holes (6), fastening bolt (7) that are used for fastening the cable wire are installed to fastening hole (6) internal thread.
2. The device for detecting the prestress of the steel cable in the in-vitro prestressed structure as recited in claim 1, wherein: the ring-type pressure sensor (4) is embedded on the reaction frame (1), and the central line of the ring-type pressure sensor (4) coincides with the central axis of the reaction frame (1).
3. The device for detecting the prestress of the steel cable in the in-vitro prestressed structure as recited in claim 1, wherein: the driving piece (5) adopts a center-penetrating jack.
4. The device for detecting the prestress of the steel cable in the in-vitro prestressed structure as recited in claim 1, wherein: the positioning telescopic rod (3) comprises an outer fixing pipe (8) and an inner connecting rod (9), and the outer fixing pipe (8) is connected with the inner connecting rod (9) in a sliding mode.
5. The device for detecting the prestress of the steel cable in the in-vitro prestressed structure as recited in claim 3, wherein: and a chamfer guide hole (10) matched with the piercing jack is formed in the upper surface of the reaction seat (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121056155.9U CN214667372U (en) | 2021-05-18 | 2021-05-18 | Steel cable prestress detection device in external prestress structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121056155.9U CN214667372U (en) | 2021-05-18 | 2021-05-18 | Steel cable prestress detection device in external prestress structure |
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| CN214667372U true CN214667372U (en) | 2021-11-09 |
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| CN202121056155.9U Active CN214667372U (en) | 2021-05-18 | 2021-05-18 | Steel cable prestress detection device in external prestress structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117571455A (en) * | 2024-01-18 | 2024-02-20 | 四川国诚检测有限公司 | High-strength bolt detector for detecting building materials and test method |
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2021
- 2021-05-18 CN CN202121056155.9U patent/CN214667372U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117571455A (en) * | 2024-01-18 | 2024-02-20 | 四川国诚检测有限公司 | High-strength bolt detector for detecting building materials and test method |
| CN117571455B (en) * | 2024-01-18 | 2024-04-30 | 四川国诚检测有限公司 | High-strength bolt detector for detecting building materials and test method |
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