CN205981524U - Be used for civil engineering prestressing force shearing force detection device - Google Patents
Be used for civil engineering prestressing force shearing force detection device Download PDFInfo
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- CN205981524U CN205981524U CN201620822789.3U CN201620822789U CN205981524U CN 205981524 U CN205981524 U CN 205981524U CN 201620822789 U CN201620822789 U CN 201620822789U CN 205981524 U CN205981524 U CN 205981524U
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- jack
- bolt
- tension frame
- civil engineering
- force
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a be used for civil engineering prestressing force shearing force detection device, including prestressed girder and bottom plate, install the bellows on the prestressed girder, and be equipped with pre -stressed reinforcement in the bellows, the horn mouth is installed to the left end of bellows, and pre -stressed reinforcement passes the horn mouth and be connected with ground tackle, limiting plate, jack and instrument anchor respectively, the ground tackle passes through the limiting plate and is connected with the jack, the bottom and a tension carriage of jack pass through connecting piece fixed connection, a tension carriage and the 2nd tension carriage go up fixed sleeve pipe and cup joint with the crab -bolt, and the crab -bolt fixes on the bottom plate, the pulley is installed to a tension carriage and the 2nd tension carriage bottom, a tension carriage and sensor fixed connection, and the right -hand member of sensor is connected with force transmission frame, force transmission frame passes through the bolt with the 2nd tension carriage to be fixed with being connected of nut. The utility model discloses not only can carry out the detection of prestressing force, but also can detect the shearing force, accomplish that a thing is dual -purpose.
Description
Technical field
This utility model is related to civil engineering plant technical field, and specially one kind is used for civil engineering prestressing force shearing force
Detection means.
Background technology
During the stretching construction of prestressed reinforced concrete construction scene, loss of prestress mainly includes friction loss and anchorage loss.
When friction loss refers to tension of prestressed tendon, the friction between stretching end anchor mouth friction loss and presstressed reinforcing steel and cell walls is damaged
Lose sum；After anchorage loss refers to put, stretching end anchor deformation and presstressed reinforcing steel inside contract the loss of prestress causing.At present
To detect prestressed friction loss and anchorage loss frequently with the sensor method of install sensor under anchorage or before and after anchorage.
At present, with social development, various architecture structure forms get more and more, and anchor bolt is as a kind of main company
Relay part, various building anchor bolts are commonly used in the engineerings such as building structure and associated decorative, and its position using and consumption are rapid
Increase.The anchor bolt of multiple manufacturer production is had now on construction market, has domestic manufacturer, also have external producer, have pre-
Buried also have rear-mounted crab-bolt, and rear-mounted crab-bolt is due to many reasons such as technology, technique, management and quality control, anchor bolt
Quality is uneven, brings certain problem to construction engineering quality, have impact on the safety guarantee of production, work and life.For
Guarantee construction engineering quality, the inspection of anchor bolt just seems particularly significant.Through market survey it was found that domestic at present still
There is not unified test method, thus can not correctly reflect the actual performance of crab-bolt shearing resistance load, many engineerings are to anchor bolt
The inspection scene of only doing extraction-resistant behavior, without it is done with the inspection of shear behavior, lead to the performance of anchor bolt is not had
Comprehensively data, the method typically being adopted or relatively rough, equipment is simple, count not accurately, detection time longer etc.
Unfavorable factor.The shear behavior of crab-bolt is its Main Mechanical, has influence on the installation quality of correlation engineering and the peace of building
Use entirely, specifies in relevant industry standard, when not having condition to adopt built-in fitting to connect, should reliably be connected using other and arrange
Apply, and its bearing capacity should be determined by test.However, whether detecting prestressing force or the device of shearing force now, have one
Fixed defect, and device is all to work independently, and easily causes loss or omits.
Content of the invention
The purpose of this utility model is to provide one kind to be used for civil engineering prestressing force shearing force detecting device, on solving
State the problem proposing in background technology, had an advantageous effect in that：Prestressed detection can not only be carried out, and can also be right
Shearing force is detected, accomplishes dual-use material.
For achieving the above object, this utility model provides following technical scheme：A kind of civil engineering prestressing force that is used for is sheared
Force checking device, including prestressed girder and base plate；On described prestressed girder, corrugated tube is installed, and in corrugated tube, is provided with prestressing force
Bundle, the left end of described corrugated tube is provided with horn mouth, and prestressing tendon pass through horn mouth respectively with anchorage, limiting plate, jack
Connect with moveable anchor, described anchorage is connected with jack by limiting plate, and the bottom of described jack is passed through with the first tension frame
Connector is fixedly connected, and on described first tension frame and the second tension frame, fixing sleeve pipe and crab-bolt are socketed, and crab-bolt is fixed on
On base plate, described first tension frame and the second tension frame bottom are provided with pulley, and described first tension frame is fixing with sensor even
Connect, and the right-hand member of sensor is connected with force transmission rack, described force transmission rack passes through being connected of bolts and nuts with the second tension frame.
Preferably, the top of described jack is provided with displacement transducer.
Preferably, described pulley is connected with the slide opening up on base plate.
Preferably, the left side of described jack is connected with moveable anchor.
Compared with prior art, the beneficial effects of the utility model are：This equipment be not only able to detect friction loss and
Anchorage loss both loss of prestress indexs, and can pre-stress construction overall process be carried out detecting simultaneously, monitor, and examine
Survey high precision, good stability, and feasibility during Technique Popularizing for the anti-shearing force device can be analyzed, simultaneously can be right
Issuing anchor bolt experiment on Shearing Resistance method provides many to have the science data of reference value.
Brief description
Fig. 1 is structural representation of the present utility model.
In figure：1- prestressed girder；2- corrugated tube；3- prestressing tendon；4- horn mouth；5- anchorage；6- limiting plate；7- instrument
Anchor；8- jack；9- displacement transducer；10- crab-bolt；11- base plate；12- first tension frame；13- second tension frame；14- power transmission
Frame；15- sensor；16- bolt；17- nut；18- sleeve pipe；19- pulley；20- connector.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely description is it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of making creative work
The every other embodiment being obtained, broadly falls into the scope of this utility model protection.
Refer to Fig. 1, a kind of embodiment that this utility model provides：One kind is used for civil engineering prestressing force shear force detection
Device, including prestressed girder 1 and base plate 11；Corrugated tube 2 is provided with prestressed girder 1, and in corrugated tube 2, is provided with prestressing tendon 3,
The left end of corrugated tube 2 is provided with horn mouth 4, and prestressing tendon 3 pass through horn mouth 4 respectively with anchorage 5, limiting plate 6, jack 8
Connect with moveable anchor 7, anchorage 5 is connected with jack 8 by limiting plate 6, the bottom of jack 8 is passed through even with the first tension frame 12
Fitting 20 is fixedly connected, and on the first tension frame 12 and the second tension frame 13, fixing sleeve pipe 18 is socketed with crab-bolt 10, and crab-bolt 10
It is fixed on base plate 11, the first tension frame 12 and the second tension frame 13 bottom are provided with pulley 19, the first tension frame 12 and sensing
Device 15 is fixedly connected, and the right-hand member of sensor 15 is connected with force transmission rack 14, and force transmission rack 14 and the second tension frame 13 pass through bolt 16
With being connected of nut 17, the top of jack 8 is provided with displacement transducer 9, the track that pulley 19 and base plate 11 open up
It is slidably connected, the left side of jack 8 is connected with moveable anchor 7.
Operation principle：During use, make horn mouth 4 face concordant with beam side concrete surface, then the coagulation of casting prestressed beam 1
Soil, installs anchorage 5 in the exposed surface of horn mouth 4, and the other end of anchorage 5 is provided with limiting plate 6, the other end of limiting plate 6
Jack 8 is installed, jack 8 is connected with moveable anchor 7, displacement transducer 9 and hydraulic pressure digital display instrument form detection means, and carry out
Clerking；Base plate 11 is passed through crab-bolt 10, then passes through bolt 16, nut 17 will be solid to the second tension frame 13 and force transmission rack 14
Fixed, force transmission rack 14 passes through sensor 15 and the first tension frame 12 fixation, by sleeve pipe 18 by the first tension frame 12, the second tension frame
13 is fixing with crab-bolt 10, and digital indicator is electrically connected with sensor 15；To the steady reinforcing of nut 17, until it reaches required value is
Only, keep a close eye on the reading of digital indicator when afterburning, and correctly read to remember last numerical value.
It is obvious to a person skilled in the art that this utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, this practicality can be realized in other specific forms new
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, this practicality is new
The scope of type is limited by claims rather than described above, it is intended that the containing of equivalency that will fall in claim
All changes in justice and scope are included in this utility model.Any reference in claim should not be considered as limiting
Involved claim.
Claims (4)
1. one kind is used for civil engineering prestressing force shearing force detecting device, including prestressed girder (1) and base plate (11)；Its feature exists
In：On described prestressed girder (1), corrugated tube (2) is installed, and in corrugated tube (2), is provided with prestressing tendon (3), described corrugated tube
(2) left end is provided with horn mouth (4), and prestressing tendon (3) pass through horn mouth (4) respectively with anchorage (5), limiting plate (6), thousand
Jin top (8) and moveable anchor (7) connect, and described anchorage (5) is connected with jack (8) by limiting plate (6), described jack (8)
Bottom be fixedly connected by connector (20) with the first tension frame (12), described first tension frame (12) and the second tension frame
(13) upper fixing sleeve pipe (18) and crab-bolt (10) are socketed, and crab-bolt (10) is fixed on base plate (11), described first tension frame
(12) and the second tension frame (13) bottom is provided with pulley (19), and described first tension frame (12) is fixing with sensor (15) even
Connect, and the right-hand member of sensor (15) is connected with force transmission rack (14), described force transmission rack (14) passes through bolt with the second tension frame (13)
(16) with being connected of nut (17).
2. according to claim 1 a kind of for civil engineering prestressing force shearing force detecting device it is characterised in that：Described
The top of jack (8) is provided with displacement transducer (9).
3. according to claim 1 a kind of for civil engineering prestressing force shearing force detecting device it is characterised in that：Described
Pulley (19) is connected with the slide opening up on base plate (11).
4. according to claim 1 a kind of for civil engineering prestressing force shearing force detecting device it is characterised in that：Described
Moveable anchor (7) is connected with the left side of jack (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620822789.3U CN205981524U (en) | 2016-08-02 | 2016-08-02 | Be used for civil engineering prestressing force shearing force detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620822789.3U CN205981524U (en) | 2016-08-02 | 2016-08-02 | Be used for civil engineering prestressing force shearing force detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205981524U true CN205981524U (en) | 2017-02-22 |
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ID=58028422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620822789.3U Expired - Fee Related CN205981524U (en) | 2016-08-02 | 2016-08-02 | Be used for civil engineering prestressing force shearing force detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205981524U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107101765A (en) * | 2017-06-23 | 2017-08-29 | 李祥露 | Prestressing force detection device of special steel wire of bridge |
| CN112097980A (en) * | 2020-09-08 | 2020-12-18 | 清华大学 | Shear force measuring device |
-
2016
- 2016-08-02 CN CN201620822789.3U patent/CN205981524U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107101765A (en) * | 2017-06-23 | 2017-08-29 | 李祥露 | Prestressing force detection device of special steel wire of bridge |
| CN112097980A (en) * | 2020-09-08 | 2020-12-18 | 清华大学 | Shear force measuring device |
| CN112097980B (en) * | 2020-09-08 | 2021-05-25 | 清华大学 | Shear force measuring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170222 Termination date: 20170802 |