CN105716771B - A kind of detection device and detection method of tensioned anchorage system anchor force - Google Patents
A kind of detection device and detection method of tensioned anchorage system anchor force Download PDFInfo
- Publication number
- CN105716771B CN105716771B CN201610254557.7A CN201610254557A CN105716771B CN 105716771 B CN105716771 B CN 105716771B CN 201610254557 A CN201610254557 A CN 201610254557A CN 105716771 B CN105716771 B CN 105716771B
- Authority
- CN
- China
- Prior art keywords
- force
- counter
- anchor
- support device
- force support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Piles And Underground Anchors (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of detection device and detection method of tensioned anchorage system anchor force, including the first counter-force support device, the second counter-force support device, dynamometry oil cylinder and connection bolt；First counter-force support device and the second counter-force support device are hollow cylindrical configuration, and one end of the first counter-force support device and the second counter-force support device is connected through a screw thread；Dynamometry oil cylinder is bolted with the other end of the second counter-force support device by being connected, and makes the first counter-force support device, the second counter-force support device and dynamometry oil cylinder coaxial.The present invention carries out anchor force detection to the tensioned anchorage system for having completed stretching construction but not yet slip casting, the objectivity and precision of detection can be improved, avoid the anchoring status of test tensioning disturbance anchoring system, science detection can be carried out to the anchor force of tensioned anchorage system, realize and scientific management is carried out to anchor system stretching construction, to find the hidden danger of quality of anchor system in time, implement the remedial measures such as compensation tensioning.
Description
Technical field
The present invention relates to the anchor force detection technique field of tensioned anchorage system, more particularly to a kind of tensioned anchorage system anchor
Gu the detection device and detection method of power.
Background technology
Tensioned anchorage system is widely used in large-span prestressed reinforced concrete structure, arch bridge, cable-stayed bridge and suspension bridge
Sunpender system, and prestressed anchor cable system of the high slope of geotechnical engineering and underground chamber etc..Using stretch-draw anchor body
System can play the high advantage of steel tensile strength, improve loading capacity of engineering, but need stringent control tensioned anchorage system pair
Relevant design and code requirement are met by the anchor force that anchor structure thing or geotechnical engineering are applied, just can guarantee that works or rock
The stability and security of geotechnological journey.
The quality control on construction point of tensioned anchorage system mainly includes：The presstressed reinforcing steel of tensioning rollering fastening system（Anchor cable etc.）Peace
Fill the line type control in duct, the presstressed reinforcing steel of anchoring system（Anchor cable etc.）, the installation quality such as anchorage, opened according to design requirement
Draw and anchor, and slip casting and the protection at anchor head position in duct.Wherein stretching construction whether in place, anchoring system installation quality
It is whether reliable, the final anchor force size of anchor system can be all influenced, so as to influence the bearing capacity and stability of works, certainly
Determine the service life of engineering.
The anchor force measuring technology of tensioned anchorage system widely used in engineering mainly has two classes at present：The first kind, base
In the non-destructive testing technology of frequency method, the anchor force test of the external tendons such as suspension cable, sunpender is mainly used in, this method is for short
Rope and steel strand wires rope test error are larger；Second class, based on test tensioning（Reverse drawing）Measuring technology, this method is by tensioning system
Connect with test system, be currently used primarily in armored concrete post-tensioned prestressing anchor system, test method simple, intuitive.
But counter-force is supported on anchorage, test stretching process in disturb anchoring system anchoring status, influence efficiency of anchorage and
Fatigue behaviour.
The content of the invention
The purpose of the present invention：A kind of detection device and detection method of tensioned anchorage system anchor force are provided, pass through detection
The anchor force of anchor system assesses the construction quality of tensioned anchorage system, so as in time to there are the stretch-draw anchor of mass defect
System applies remedial measure, improves the integral construction quality level of the works and geotechnical engineering using tensioned anchorage system.
To achieve these goals, the technical scheme is that：
A kind of detection device of tensioned anchorage system anchor force, including the first counter-force support device, the second counter-force support dress
Put, dynamometry oil cylinder and connection bolt；The first counter-force support device and the second counter-force support device is hollow tube-shape knot
Structure, one end of the first counter-force support device and the second counter-force support device are connected through a screw thread；The survey
Power cylinder and the other end of the second counter-force support device are bolted by the connection, make first counter-force
The center of support device, the second counter-force support device and dynamometry oil cylinder is located on same axis；Installed on the dynamometry oil cylinder
There are elongation test device and external data analysis system, dynamometry oil cylinder connection oil pump, the top of the dynamometry oil cylinder
End is provided with moveable anchor or cord clip tool.
The detection device of above-mentioned tensioned anchorage system anchor force, wherein, the first counter-force support device is equipped with
Instrument connection, positioned at the support end of the first counter-force support device.
The detection device of above-mentioned tensioned anchorage system anchor force, wherein, the first counter-force support device with it is described
The second counter-force support device between be equipped with limiting plate, the limiting plate is vertically arranged.
A kind of method that detection device of tensioned anchorage system anchor force is installed on anchor system, this method include at least such as
Lower step：
Step 1：Selection and the first counter-force support device of the anchorage correspondingly-sized of anchor system, will also for intermediate plate anchorage
The limiting plate of dimension is selected, then strengthens that the first counter-force support device and limiting plate are installed in the range of area in anchoring, and even
Connect the second counter-force support device.
Step 2：The second counter-force support device and dynamometry oil cylinder are connected, and elongation test dress is installed on dynamometry oil cylinder
Put, dynamometry oil cylinder connection oil pump.
Step 3：Have in the top installation tool anchor or cord clip of dynamometry oil cylinder.
Step 4：Dynamometry oil cylinder is connected into data analysis system with elongation test device.
A kind of detection method of the detection device of tensioned anchorage system anchor force, this method include at least following steps：
Step 1：Data analysis system is fitted and is opened according to the original construction data of stretching force-elongation of anchor system
Pulling force-elongation construction curve, obtains construction curve slope during control stretching force；Or surveyed using presstressed reinforcing steel tensile strength
Examination data obtain construction curve slope.
Step 2：Test tensioning is carried out, is slowly further applied load, passes through elongation test device and the test anchoring of dynamometry oil cylinder
The elongation and stretching force of system.
Step 3：Data analysis system real-time fitting stretching force-elongation test curve, when the test curve slope occurs
It is obviously reduced, and when slope and basically identical construction curve slope, it is preliminary to judge that stretching force close to anchor system anchor force, is protected
The stretching force of dynamometry oil cylinder is held, carries out second test judgement.
Step 4：By the instrument connection of the first counter-force support device, test between anchor system and its supporting surface and whether occur
Gap, if gap occurs, stretching force is the test value of anchor system anchor force at this time；Otherwise continue Slow loading, and continue
Test, until gap occurs between anchor system and its supporting surface, stretching force is the test value of anchor system anchor force at this time.
The present invention carries out anchor force detection to the tensioned anchorage system for having completed stretching construction but not yet slip casting, can improve
The objectivity and precision of detection, while avoid the anchoring status of test tensioning disturbance anchoring system；The present invention can be to tensioning anchor
Gu the anchor force of system carries out science detection, realize and scientific management is carried out to anchor system stretching construction, to find anchor in time
Gu the hidden danger of quality of system, implements the remedial measures such as compensation tensioning.
Brief description of the drawings
Fig. 1 is a kind of structure diagram of the detection device of tensioned anchorage system anchor force of the present invention.
Fig. 2 is a kind of data analysis schematic diagram of the detection device of tensioned anchorage system anchor force of the present invention.
Fig. 3 is a kind of installation method flow chart of the detection device of tensioned anchorage system anchor force of the present invention.
Fig. 4 is a kind of detection method flow chart of the detection device of tensioned anchorage system anchor force of the present invention.
Embodiment
The embodiment of the present invention is further illustrated below in conjunction with attached drawing.
Refer to shown in attached drawing 1 and attached drawing 2, a kind of detection device of tensioned anchorage system anchor force, including the first counter-force
Support device 1, the second counter-force support device 2, dynamometry oil cylinder 3 and connection bolt 4；The first counter-force support device 1 and
Two counter-force support devices 2 are hollow cylindrical configuration, and the first counter-force support device 1 is filled with the second counter-force support
The one end for putting 2 passes through screw thread or other modes connection；The dynamometry oil cylinder 3 is another with the second counter-force support device 2
One end is connected by the connection bolt 4 or other modes, makes the first counter-force support device 1, the support of the second counter-force
The center of device 2 and dynamometry oil cylinder 3 is located on same axis, avoids 3 eccentric compression of dynamometry oil cylinder and causes test error；It is described
Dynamometry oil cylinder 3 on elongation test device and external data analysis system be installed, the dynamometry oil cylinder 3 connection oil pump,
The top of the dynamometry oil cylinder 3 is provided with moveable anchor or cord clip tool etc..
The first counter-force support device 1 is equipped with instrument connection, positioned at the support of the first counter-force support device 1
Whether end, occur gap for testing between anchor system and supporting surface.Size root of the first counter-force support device 1 in support end
Segment design is carried out according to typical anchorage size.
Limiting plate 5 is equipped between the first counter-force support device 1 and the second counter-force support device 2, it is described
Limiting plate 5 be vertically arranged, for installing intermediate plate anchorage.
Refer to shown in attached drawing 3, a kind of method that detection device of tensioned anchorage system anchor force is installed on anchor system,
This method includes at least following steps：
Step 1：Selection and the first counter-force support device 1 of the anchorage correspondingly-sized of anchor system, for intermediate plate anchorage also
The limiting plate 5 of dimension is selected, then strengthens that the first counter-force support device 1 and limiting plate 5 are installed in the range of area in anchoring,
And connect the second counter-force support device 2.
Step 2：The second counter-force support device 2 and dynamometry oil cylinder 3 are connected, and elongation test is installed on dynamometry oil cylinder 3
Device, dynamometry oil cylinder 3 connect oil pump.
Step 3：Have in the top installation tool anchor or cord clip of dynamometry oil cylinder 3 etc..
Step 4：Dynamometry oil cylinder 3 is connected into data analysis system with elongation test device.
Refer to shown in attached drawing 4, a kind of detection method of the detection device of tensioned anchorage system anchor force, this method is at least
Include the following steps：
Step 1：Data analysis system is fitted and is opened according to the original construction data of stretching force-elongation of anchor system
Pulling force-elongation construction curve, obtains the construction curve slope k 1 during control stretching force.Or utilize presstressed reinforcing steel tensile strength
Test data obtains construction curve slope k 1.
Step 2：Test tensioning is carried out, is slowly further applied load, passes through elongation test device and the test anchoring of dynamometry oil cylinder 3
The elongation and stretching force of system.
Step 3：Data analysis system real-time fitting stretching force-elongation test curve, when the test curve slope occurs
It is obviously reduced, and when slope and construction curve slope k 1 are basically identical, it is preliminary to judge stretching force close to anchor system anchor force,
The stretching force of dynamometry oil cylinder 3 is kept, carries out second test judgement.
Step 4：By the instrument connection of the first counter-force support device 1, test between anchor system and its supporting surface and whether send out
Raw gap, if gap occurs, stretching force is the test value of anchor system anchor force at this time；Otherwise continue Slow loading, and hold
Continuous test, until gap occurs between anchor system and its supporting surface, stretching force is the test value of anchor system anchor force at this time.
The detection device and detection method of the present invention is not carry out hole after the completion of stretching construction for tensioned anchorage system
During road slip casting, its anchor force is detected.The principle of the detection technique is by being surveyed to the anchor system of not yet slip casting after anchoring
Tensioning is tried, and is changed according to stretching force-elongation curve slope of test tensioning, and between anchoring system and supporting surface
Generation gap judges whether stretching force reaches anchor force, obtains anchor force measured value.
The anchoring force checking device and detection method of the present invention can be used for structure post-tensioned prestressing system, geotechnical engineering with
And the anchor force detection of the anchor system such as the prestressed anchor cable system and cable-stayed bridge of underground engineering, suspension bridge and arch bridge suspender.
In conclusion the present invention carries out anchor force inspection to the tensioned anchorage system for having completed stretching construction but not yet slip casting
Survey, the objectivity and precision of detection can be improved, while avoid the anchoring status of test tensioning disturbance anchoring system；The present invention can be with
Science detection is carried out to the anchor force of tensioned anchorage system, realizes and scientific management is carried out to anchor system stretching construction, so as to and
The hidden danger of quality of Shi Faxian anchor systems, implements the remedial measures such as compensation tensioning.
The foregoing is merely the preferred embodiment of the present invention, is not intended to limit the scope of the invention, every utilization
The equivalent structure transformation that present specification is made, directly or indirectly with the technology neck for being attached to other Related products
Domain, is included within the scope of the present invention.
Claims (5)
- A kind of 1. detection device of tensioned anchorage system anchor force, it is characterised in that：Including the first counter-force support device, second anti- Force supporting device, dynamometry oil cylinder and connection bolt；During the first counter-force support device and the second counter-force support device is Empty tube shape structure, one end of the first counter-force support device and the second counter-force support device are connected through a screw thread； The dynamometry oil cylinder and the other end of the second counter-force support device are bolted by the connection, are made described The center of first counter-force support device, the second counter-force support device and dynamometry oil cylinder is located on same axis；The dynamometry oil Elongation test device and external data analysis system, dynamometry oil cylinder connection oil pump, the dynamometry are installed on cylinder The top of oil cylinder is provided with moveable anchor or cord clip tool.
- 2. the detection device of tensioned anchorage system anchor force according to claim 1, it is characterised in that：Described first is anti- Force supporting device is equipped with instrument connection, positioned at the support end of the first counter-force support device.
- 3. the detection device of tensioned anchorage system anchor force according to claim 1, it is characterised in that：Described first is anti- Limiting plate is equipped between force supporting device and the second counter-force support device, the limiting plate is vertically arranged.
- 4. a kind of detection device of tensioned anchorage system anchor force applied to described in claim 1-3 any one is installed on anchor Gu the method for system, it is characterised in that：This method includes at least following steps：Step 1：Selection and the first counter-force support device of the anchorage correspondingly-sized of anchor system, will also select for intermediate plate anchorage The limiting plate of dimension, then strengthens installing the first counter-force support device and limiting plate in the range of area in anchoring, and connects the Two counter-force support devices；Step 2：The second counter-force support device and dynamometry oil cylinder are connected, and elongation test device is installed on dynamometry oil cylinder, is surveyed Power cylinder connects oil pump；Step 3：Have in the top installation tool anchor or cord clip of dynamometry oil cylinder；Step 4：Dynamometry oil cylinder is connected into data analysis system with elongation test device.
- 5. a kind of detection method of the detection device of tensioned anchorage system anchor force applied to described in claim 4, its feature It is：This method includes at least following steps：Step 1：Data analysis system according to the original construction data of stretching force-elongation of anchor system, fitting obtain stretching force- Elongation construction curve, obtains construction curve slope during control stretching force；Or utilize presstressed reinforcing steel tensile strength test number According to obtaining construction curve slope；Step 2：Test tensioning is carried out, is slowly further applied load, anchor system is tested by elongation test device and dynamometry oil cylinder Elongation and stretching force；Step 3：Data analysis system real-time fitting stretching force-elongation test curve, when the test curve slope occurs substantially Reduce, and when slope is consistent with construction curve slope, it is preliminary to judge that stretching force is oily close to anchor system anchor force, holding dynamometry The stretching force of cylinder, carries out second test judgement；Step 4：By the instrument connection of the first counter-force support device, test between anchor system and its supporting surface whether sky occurs Gap, if gap occurs, stretching force is the test value of anchor system anchor force at this time；Otherwise continue Slow loading, and continue to survey Examination, until gap occurs between anchor system and its supporting surface, stretching force is the test value of anchor system anchor force at this time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610254557.7A CN105716771B (en) | 2016-04-24 | 2016-04-24 | A kind of detection device and detection method of tensioned anchorage system anchor force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610254557.7A CN105716771B (en) | 2016-04-24 | 2016-04-24 | A kind of detection device and detection method of tensioned anchorage system anchor force |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105716771A CN105716771A (en) | 2016-06-29 |
| CN105716771B true CN105716771B (en) | 2018-05-01 |
Family
ID=56161453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610254557.7A Active CN105716771B (en) | 2016-04-24 | 2016-04-24 | A kind of detection device and detection method of tensioned anchorage system anchor force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105716771B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6318038B1 (en) * | 1997-12-31 | 2001-11-20 | Jae Man Park | Apparatus for retensing pre-stress structure |
| CN201057518Y (en) * | 2006-05-12 | 2008-05-07 | 王继成 | Synthetic testing bench for pre-stressed anchorage and connector |
| CN101769075A (en) * | 2008-12-30 | 2010-07-07 | 中铁西北科学研究院有限公司深圳南方分院 | Method for detecting concrete beam anchor lower prestress and device for realizing method |
| CN102304930A (en) * | 2007-07-10 | 2012-01-04 | 中铁西北科学研究院有限公司深圳南方分院 | Method for detecting prestress construction quality of anchoring engineering |
| CN202989920U (en) * | 2012-12-30 | 2013-06-12 | 中国化学工程第十三建设有限公司 | Long anchor cable tensioning device |
| CN103454026A (en) * | 2013-08-30 | 2013-12-18 | 河南省水利勘测设计研究有限公司 | Measuring system and measuring method for multi-beam flat anchor prestress of thin wall concrete structure |
| CN103983521A (en) * | 2014-06-09 | 2014-08-13 | 天地科技股份有限公司 | Anchoring performance testing device |
| CN104831634A (en) * | 2015-05-18 | 2015-08-12 | 湖南路桥建设集团有限责任公司 | Construction method for box type bridge vertical prestressed steel strand tension |
| CN205562096U (en) * | 2016-04-24 | 2016-09-07 | 杭州同睿工程科技有限公司 | Detection apparatus for stretch -draw anchor system anchor power |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7194913B2 (en) * | 2002-08-26 | 2007-03-27 | Shell Oil Company | Apparatuses and methods for monitoring stress in steel catenary risers |
-
2016
- 2016-04-24 CN CN201610254557.7A patent/CN105716771B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6318038B1 (en) * | 1997-12-31 | 2001-11-20 | Jae Man Park | Apparatus for retensing pre-stress structure |
| CN201057518Y (en) * | 2006-05-12 | 2008-05-07 | 王继成 | Synthetic testing bench for pre-stressed anchorage and connector |
| CN102304930A (en) * | 2007-07-10 | 2012-01-04 | 中铁西北科学研究院有限公司深圳南方分院 | Method for detecting prestress construction quality of anchoring engineering |
| CN101769075A (en) * | 2008-12-30 | 2010-07-07 | 中铁西北科学研究院有限公司深圳南方分院 | Method for detecting concrete beam anchor lower prestress and device for realizing method |
| CN202989920U (en) * | 2012-12-30 | 2013-06-12 | 中国化学工程第十三建设有限公司 | Long anchor cable tensioning device |
| CN103454026A (en) * | 2013-08-30 | 2013-12-18 | 河南省水利勘测设计研究有限公司 | Measuring system and measuring method for multi-beam flat anchor prestress of thin wall concrete structure |
| CN103983521A (en) * | 2014-06-09 | 2014-08-13 | 天地科技股份有限公司 | Anchoring performance testing device |
| CN104831634A (en) * | 2015-05-18 | 2015-08-12 | 湖南路桥建设集团有限责任公司 | Construction method for box type bridge vertical prestressed steel strand tension |
| CN205562096U (en) * | 2016-04-24 | 2016-09-07 | 杭州同睿工程科技有限公司 | Detection apparatus for stretch -draw anchor system anchor power |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105716771A (en) | 2016-06-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Schumacher et al. | Estimating operating load conditions on reinforced concrete highway bridges with b-value analysis from acoustic emission monitoring | |
| CN103323340B (en) | Mechanical property test device and method of steel-concrete contact interface | |
| CN107503386A (en) | Anchor rod body holds the detection means and detection method of load | |
| Luga et al. | A pioneer in-situ investigation on the bearing capacity and failure causes of real scale fully grouted rockbolts | |
| CN103791795A (en) | Bridge static load test displacement monitoring device | |
| CN208748712U (en) | A kind of test pile vertical compression detection device | |
| KR100856734B1 (en) | The standard test system for the cable tension measurement of suspension system | |
| CN105716771B (en) | A kind of detection device and detection method of tensioned anchorage system anchor force | |
| CN206095494U (en) | Control of tension power testing system under prestressed concrete bridge roof beam anchor | |
| JP6681776B2 (en) | Ground anchor soundness evaluation method and soundness evaluation system | |
| CN116399725B (en) | Anchor cable dynamic mechanical property testing method and system | |
| CN205562096U (en) | Detection apparatus for stretch -draw anchor system anchor power | |
| CN209652995U (en) | Small-size concrete tubular pole pulling resistance testing device | |
| CN114428015B (en) | Device and method for testing prestress loss of carbon fiber reinforced composite bar | |
| CN203704829U (en) | Bridge static load experiment displacement monitoring device | |
| CN103321259A (en) | Testing system for anchor network reinforcement of underground engineering broken surrounding rock | |
| CN207019819U (en) | A kind of realization device of cable force measurement technology | |
| Zou | Analysis of in situ rock bolt loading status | |
| CN105045944B (en) | A kind of engineering prestressing technique use state appraisal procedure | |
| CN211373921U (en) | Vibration sensor field calibration device for pole cable tension detection | |
| CN204302118U (en) | A kind of expansive concrete tensile creep test device | |
| Satola | The axial load-displacement behavior of steel strands used in rock reinforcement | |
| JPH01284740A (en) | Various evaluating methods for anchor test | |
| Pastars et al. | Determination of load transfer characteristics of gloved resin bolts from laboratory and in situ field testing | |
| Ruest et al. | FLAC simulation of split-pipe tests on an instrumented cable bolt |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chao Chunfeng Inventor after: Luo Lanqiang Inventor after: Chen Longmei Inventor after: Ji Wenhong Inventor after: Yang Chao Inventor before: Chao Chunfeng Inventor before: Chen Longmei Inventor before: Ji Wenhong Inventor before: Yang Chao |