CN217424624U - Building engineering bearing beam prestressing force detection device - Google Patents
Building engineering bearing beam prestressing force detection device Download PDFInfo
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- CN217424624U CN217424624U CN202221388606.3U CN202221388606U CN217424624U CN 217424624 U CN217424624 U CN 217424624U CN 202221388606 U CN202221388606 U CN 202221388606U CN 217424624 U CN217424624 U CN 217424624U
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- bearing beam
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- anchor
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Abstract
The utility model discloses a building engineering bearing beam prestressing force detection device belongs to prestressing force and detects technical field. A prestress detection device for a bearing beam of constructional engineering comprises a permanent anchor arranged at the outer end of the bearing beam and an anchor cable fixed by the permanent anchor, wherein a support cylinder is arranged at the outer end of the permanent anchor, a first through jack is arranged on the outer end side of the support cylinder, and a temporary anchor is arranged at the front end of the first through jack; a clamping piece resetting component is arranged in the supporting cylinder; and a displacement detection assembly is arranged in the supporting cylinder and acquires the clamping piece displacement data of the permanent anchorage device. The utility model is provided with the reinforced support ring attached to the outer end of the bearing beam, thereby providing more contact surfaces and enhancing the stability and balance; the clip reset assembly compresses the clips of the permanent anchor back to an original position.
Description
Technical Field
The utility model relates to a prestressing force detects technical field, especially relates to a building engineering bearing beam prestressing force detection device.
Background
The prestressed anchoring engineering is widely applied to concrete engineering such as bridge construction, dam reinforcement, high and steep slope reinforcement, underground cavern reinforcement and the like; it allows the structure to be reinforced to be stabilized by applying a large prestress beforehand.
The construction of the prestressed beam body of the bridge engineering is divided into the following three stages: in the first stage, prestressed beam concrete is poured, and a pore channel for a prestressed tendon (anchor rope) to pass through is reserved; in the second stage, mounting prestressed tendons and tensioning the prestressed tendons; and in the third stage, cutting redundant prestressed tendons, sealing anchors and grouting channels. Wherein, the tensioning quality of the prestressed tendons in the second stage directly influences the service life of the bridge.
For the prestress detection of the beam body, the quality level of the applied prestress is judged by tensioning the tensioned anchor again so as to standardize the quality control behavior of the prestressed bridge.
In a patent publication No. CN101769075A entitled "method for detecting prestress under concrete beam anchor and apparatus for implementing the same", there is provided a prestress detecting apparatus including: the device comprises a reaction cylinder, a feed-through jack and a tool anchor which are sequentially arranged on an anchor rope in a serial connection mode, wherein the reaction cylinder is sleeved outside a working anchor, the bottom of the reaction cylinder is opened, the opening surface of the reaction cylinder is tightly attached to a concrete beam section for supporting the working anchor, and the top of the reaction cylinder is provided with a through hole for the anchor rope to pass through; the jack is arranged on the top surface of the counter-force cylinder to stretch the anchor cable; the tool anchor is mounted on the jack to lock an anchor line; the device also comprises a displacement and load testing instrument which is connected on the anchor cable in series and is positioned between the reaction cylinder and the tool anchor. The quality level of prestress applied to concrete beam construction is judged by performing secondary tensioning capable of effectively preventing detection loss on the anchor cable of the concrete beam which is tensioned and anchored but not grouted so as to standardize the quality control action of the prestressed bridge.
The contact surface between the equipment and the beam body is small, so that the overall stability and balance are low; the working anchor to be tested is reformed, so that the overall strength is influenced; the clamping piece of the working anchor is in a displacement limiting mode, and actual detection data are influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving prior art, prestressing force detection device has the problem of some defects, and the building engineering bearing beam prestressing force detection device who proposes.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a prestress detection device for a bearing beam of constructional engineering comprises a permanent anchor arranged at the outer end of the bearing beam and an anchor cable fixed by the permanent anchor, wherein a support cylinder is arranged at the outer end of the permanent anchor, a first through jack is arranged on the outer end side of the support cylinder, and a temporary anchor is arranged at the front end of the first through jack;
a clamping piece resetting component is arranged in the supporting cylinder;
and a displacement detection assembly is arranged in the supporting cylinder and acquires the clamping piece displacement data of the permanent anchorage device.
In some embodiments, the inner end side of the supporting cylinder is provided with a reinforcing supporting ring, and the reinforcing supporting ring is attached to the outer end of the bearing beam.
In some embodiments, the clip reset assembly comprises a second feed-through jack, a pressure plate;
the second straight-through jack is arranged inside the supporting cylinder, and the telescopic end of the second straight-through jack faces the bearing beam; the pressure plate is arranged at the telescopic end of the second straight-through jack;
the pressure plate is provided with a through hole, and the diameter of the through hole is matched with that of the anchor cable and is smaller than the outer diameter of the clamping piece of the permanent anchorage device.
In some embodiments, the displacement detection assembly comprises a sliding disk;
the sliding disc is provided with a through hole, and the diameter of the through hole is matched with that of the anchor cable and is smaller than the outer diameter of the clamping piece of the permanent anchorage device;
the rear end of the sliding disc is provided with a sliding rod which is inserted in the pressure disc to slide;
and a displacement sensor is arranged at the tail end of the slide bar.
In some embodiments, the detection end of the displacement sensor is in contact with the tail end of the slide bar, and the other end of the displacement sensor is fixedly connected to the inner wall of the support cylinder.
Compared with the prior art, the utility model provides a building engineering bearing beam prestressing force detection device possesses following beneficial effect.
1. The utility model is provided with the reinforced support ring attached to the outer end of the bearing beam, thereby providing more contact surfaces and enhancing the stability and balance; the clip reset assembly compresses the clips of the permanent anchor back to an original position.
2. The utility model discloses, displacement detection subassembly acquires the clamping piece displacement data of permanent ground tackle, riches data acquisition, can assist and detect the anchor effect.
Other advantages, objects, and features of the invention will be set forth in part in the description which follows; and will be apparent to those skilled in the art, to a certain extent, upon a study of the following; or may be learned by the practice of the invention.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic sectional view of the present invention.
Fig. 3 is a schematic diagram of the explosion structure of the present invention.
Fig. 4 is a schematic diagram of the exploded rear side of the clip reset assembly.
Fig. 5 is a schematic diagram of the front side configuration of the clip reset assembly in an exploded state.
In the figure:
1. a permanent anchor;
2. an anchor cable;
3. a support cylinder; 301. reinforcing the support ring;
4. a first feed-through jack;
5. a temporary anchorage device;
6. a clip reset assembly; 601. a second feed-through jack; 602. a platen;
7. a displacement detection assembly; 701. a sliding disk; 702. a slide bar; 703. and a displacement sensor.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-5, the device for detecting the prestress of the bearing beam in the constructional engineering comprises a permanent anchorage device 1 arranged at the outer end of the bearing beam and an anchor cable 2 fixed by the permanent anchorage device 1, wherein the permanent anchorage device 1 and the anchor cable 2 adopt the prior technical scheme.
The outer end of the permanent anchorage 1 is provided with a support cylinder 3.
Wherein, the supporting cylinder 3 is made of high-strength steel; it will be appreciated that the support cylinder 3 surrounds the outer periphery of the permanent anchorage 1; i.e. the inner diameter of the support cylinder 3 is larger than the outer diameter of the permanent anchorage 1.
A first feed-through jack 4 is arranged at the outer end side of the supporting cylinder 3; the front end of the first straight-through jack 4 is provided with a temporary anchorage device 5, and the anchor cable 2 penetrates through the temporary anchorage device 5 and is fixed.
It will be appreciated that the outer end side of the support cylinder 3 is provided with an apertured end face to provide a support surface for the first feed-through jack 4; a load testing component is arranged between the first straight-through jack 4 and the temporary anchorage device 5; for the first through jack 4 with the load data, the setting is not needed.
Traction force is provided through the first through jack 4, corresponding load and displacement data changes are recorded, and the prestress of the beam body is measured.
In some embodiments, the inner end side of the support cylinder 3 is provided with a reinforcing support ring 301.
Wherein, the reinforcing support ring 301 is of an annular structure, and the inner end surface of the reinforcing support ring is attached to the outer end of the bearing beam; more contact surfaces can be provided, and stability and balance are enhanced.
It will be appreciated that the inner diameter of reinforcing support ring 301 is greater than the outer diameter of permanent anchor 1; the reinforcing support ring 301 and the support cylinder 3 are fixedly connected into a whole by adopting welding, bolt connection and other forms.
In some embodiments, clip reset assembly 6 is disposed inside support barrel 3.
Specifically, the clip resetting assembly 6 includes a second through jack 601 and a pressure plate 602.
The second straight-through jack 601 is arranged inside the supporting cylinder 3, and the telescopic end of the second straight-through jack faces the bearing beam; the platen 602 is disposed at the telescoping end of the second feed-through jack 601.
It will be appreciated that the conduit of the second feed-through jack 601 penetrates to the outside of the supporting cylinder 3; the second feed-through jack 601 is fixedly connected inside the support cylinder 3.
The pressure plate 602 is provided with a through hole, and the diameter of the through hole is matched with the diameter of the anchor cable 2 and is smaller than the outer diameter of the clamping piece of the permanent anchorage device 1.
When the device is used, the anchor cable 2 sequentially penetrates through the pressure plate 602, the second straight-through jack 601 and the supporting cylinder 3; after the test, the second feed-through jack 601 is controlled to extend, pressing the jaws of the permanent anchorage 1 back to the original position by means of the pressure plate 602.
In some embodiments, the interior of support cylinder 3 is provided with a displacement sensing assembly 7 to obtain clip displacement data for permanent anchor 1.
Wherein the displacement detecting unit 7 includes a slider tray 701.
The sliding disc 701 is of a disc structure, and a through hole is formed in the sliding disc 701; the diameter of the through hole is matched with the diameter of the anchor cable 2 and is smaller than the outer diameter of the clamping piece of the permanent anchorage device 1.
A sliding rod 702 is arranged at the rear end of the sliding disc 701, and the sliding rod 702 is inserted in the pressure plate 602 to slide; it is understood that, in order to ensure stability, at least two sliding rods 702 are provided; as shown in fig. 4, three sliding bars 702 are provided.
A displacement sensor 703 is arranged at the tail end of the sliding rod 702; the number of displacement sensors 703 corresponds to the number of slide bars 702; the detection end of the displacement sensor 703 is in contact with the tail end of the slide bar 702, and the other end of the displacement sensor 703 is fixedly connected to the inner wall of the support cylinder 3.
In use, in an initial state, the front end of the pressure plate 602 is not in contact with the rear end of the sliding plate 701, and the spacing distance is greater than the displacement amount which may be generated by the clip; the front end of the sliding disk 701 abuts against the outer end of the clamping piece of the permanent anchorage 1.
In the test, the clamping piece is displaced to drive the sliding disc 701 to move, and the displacement sensor 703 acquires data; after testing, the platen 602 is advanced against the slider plate 701, pressing the clips back to the original position.
When the utility model is used, the anchor cable 2 sequentially passes through the sliding disc 701, the pressure plate 602, the second penetrating jack 601, the supporting cylinder 3 and the first penetrating jack 4 and is fixed through the temporary anchorage device 5; in use, traction is provided through the first through jack 4, displacement and load data of the first through jack 4 are measured, and prestress data of a beam body is measured; thereafter, the second jack 601 is controlled to extend, and the clamping pieces of the permanent anchorage 1 are pressed back to the original position by pressing the sliding plate 701 against the front of the pressing plate 602
In the utility model, the reinforcing support ring 301 is attached to the outer end of the bearing beam to provide more contact surfaces and enhance stability and balance; the clamping piece resetting component 6 presses the clamping pieces of the permanent anchorage device 1 back to the original position; the displacement detection assembly 7 acquires the clamping piece displacement data of the permanent anchorage device 1, enriches data acquisition and can assist in detecting the anchoring effect.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (5)
1. The prestress detection device for the bearing beam of the constructional engineering comprises a permanent anchorage device (1) arranged at the outer end of the bearing beam and an anchor cable (2) fixed by the permanent anchorage device (1), and is characterized in that a support cylinder (3) is arranged at the outer end of the permanent anchorage device (1), a first through jack (4) is arranged on the outer end side of the support cylinder (3), and a temporary anchorage device (5) is arranged at the front end of the first through jack (4);
a clamping piece resetting component (6) is arranged in the supporting cylinder (3);
the displacement detection assembly (7) is arranged in the supporting cylinder (3), and the displacement detection assembly (7) acquires clamping piece displacement data of the permanent anchorage device (1).
2. The prestress testing device for the load-bearing beam in the constructional engineering as claimed in claim 1, wherein a reinforcing support ring (301) is arranged at the inner end side of the support cylinder (3), and the reinforcing support ring (301) is attached to the outer end of the load-bearing beam.
3. The prestress testing device for the load-bearing beam in the constructional engineering as claimed in claim 1, wherein the clip reset assembly (6) comprises a second through jack (601), a pressure plate (602);
the second straight-through jack (601) is arranged inside the supporting cylinder (3), and the telescopic end of the second straight-through jack faces the bearing beam; the pressure plate (602) is arranged at the telescopic end of the second straight-through jack (601);
the pressing plate (602) is provided with a through hole, and the diameter of the through hole is matched with that of the anchor cable (2) and is smaller than the outer diameter of the clamping piece of the permanent anchor (1).
4. A prestressing force detecting device for a load-bearing beam in constructional engineering according to claim 3, characterized in that said displacement detecting member (7) comprises a sliding plate (701);
the sliding disc (701) is provided with a through hole, the diameter of the through hole is matched with that of the anchor cable (2), and the through hole is smaller than the outer diameter of a clamping piece of the permanent anchorage device (1);
a sliding rod (702) is arranged at the rear end of the sliding disc (701), and the sliding rod (702) is inserted in the pressure plate (602) to slide;
and a displacement sensor (703) is arranged at the tail end of the sliding rod (702).
5. The prestress detection device for the bearing beam in the constructional engineering as claimed in claim 4, wherein a detection end of the displacement sensor (703) is in contact with a tail end of the slide bar (702), and the other end of the displacement sensor (703) is fixedly connected to the inner wall of the support cylinder (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221388606.3U CN217424624U (en) | 2022-06-06 | 2022-06-06 | Building engineering bearing beam prestressing force detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221388606.3U CN217424624U (en) | 2022-06-06 | 2022-06-06 | Building engineering bearing beam prestressing force detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217424624U true CN217424624U (en) | 2022-09-13 |
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ID=83171487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221388606.3U Active CN217424624U (en) | 2022-06-06 | 2022-06-06 | Building engineering bearing beam prestressing force detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217424624U (en) |
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2022
- 2022-06-06 CN CN202221388606.3U patent/CN217424624U/en active Active
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