CN206248462U - Anchorage, fixture and connector static load anchoring test overall strain measurement apparatus - Google Patents
Anchorage, fixture and connector static load anchoring test overall strain measurement apparatus Download PDFInfo
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- CN206248462U CN206248462U CN201621402580.8U CN201621402580U CN206248462U CN 206248462 U CN206248462 U CN 206248462U CN 201621402580 U CN201621402580 U CN 201621402580U CN 206248462 U CN206248462 U CN 206248462U
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- clamping element
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Abstract
The utility model is related to a kind of anchorage, fixture and connector static load anchoring test overall strain measurement apparatus, it is characterised in that：Including left sleeve, right sleeve, displacement transducer, left end steel strand wires clamping element, right-hand member steel strand wires clamping element, right sleeve coaxial package is in the left sleeve, institute's displacement sensors are installed in moving sleeve, the fixing end of displacement transducer is fixedly mounted with left sleeve, the test lead of displacement transducer is fixedly connected with the end of right sleeve, left sleeve is fixedly connected by link with left end steel strand wires clamping element, and right sleeve is fixedly connected with right-hand member steel strand wires clamping element.Anchorage of the present utility model, fixture and connector static load anchoring test overall strain measurement apparatus, can be installed on steel strand wires, the strain value of the spacing of steel strand wires is detected by displacement transducer, so as to anchorage, fixture and the overall strain of connector static load anchoring test and strain peak value can be measured, detection means is easily installed and operates, and certainty of measurement is good.
Description
Technical field
The utility model is related to civil engineering testing inspection field, is mainly used in prestressed structure, particularly a kind of
Anchorage, fixture and connector static load anchoring test overall strain measurement apparatus.
Background technology
With being increasingly employed prestressed structure, national current standard in civil engineering《Highway bridge prestress steel
Twisted wire anchorage, fixture and connector》(JT/T 329-2010)、《Railway engineering use for tendon strand tapered anchorage, fixture and
Connector》(TB/T 3193-2016) and《Use for tendon anchorage, fixture and connector》(GB/T 14370-2015) is to anchor
The static load anchoring performance of tool, fixture and connector proposes requirement higher.Existing most of static load anchoring test equipment is to total
The test of strain, is mainly carried out with displacement transducer to parameters such as oil cylinder overhang, frame compression, steel strand wires neck-ins
Test and calculate and draw, be oil cylinder overhang test and gathered data peak value with computer, other are such as frame pressure
The parameters such as compression deformation, steel strand wires neck-in are drawn by manual test, empirical data, are then calculated by these data
Overall strain.The data testing accuracy for so drawing is low, cumbersome, and there is certain security risk.
In addition in this testing inspection, maximal force and overall strain when code requirement is test specimen destruction pulling force are exactly
Strain peak value when test specimen is destroyed, this peak-data must be gathered with instrumentation, and general display instrument is without this function, rule
A kind of method that overall strain is directly tested on steel strand wires introduced in model does not have still in existing static load anchoring test equipment
Formation is commercially produced, and is also only theoretical method.But this method can be excluded due to stand stretch, and steel strand wires inside contract displacement
Etc. the influence of uncertain deformation.
Present applicant has proposed a kind of direct measurement overall strain and automatic data collection processing unit, the survey carried out using this device
Method for testing will be better than other method of testings in the reliability and precision of test data.
The content of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, there is provided a kind of anchorage, fixture and connector static load
Anchorage experiment overall strain measurement apparatus, it uses the method for direct test, and test data is reliable and stable, and high precision.
The utility model solves its technical problem and is achieved through the following technical solutions：
A kind of anchorage, fixture and connector static load anchoring test overall strain measurement apparatus, it is characterised in that：Including left set
Cylinder, right sleeve, displacement transducer, left end steel strand wires clamping element, right-hand member steel strand wires clamping element, right sleeve coaxial package is in the left side
In sleeve, institute's displacement sensors are installed in moving sleeve, and fixing end and the left sleeve of displacement transducer are fixedly mounted, displacement
The test lead of sensor is fixedly connected with the end of right sleeve, and left sleeve is fixed with left end steel strand wires clamping element by link and connected
Connect, right sleeve is fixedly connected with right-hand member steel strand wires clamping element.
And, described left end steel strand wires clamping element is fixedly mounted with right-hand member steel strand wires clamping element by chuck body and madial wall
Steel strand wires clamp the edge of a knife constitute.
And, a data collection control unit is also included, the signal output part of described displacement transducer is connected to this
Data collection control unit.
And, described left sleeve, right sleeve are PVC material sleeves.
Advantage of the present utility model and have the beneficial effect that：
1st, anchorage of the invention, fixture and connector static load anchoring test overall strain measurement apparatus, straight with displacement transducer
Connect and be fixed on steel strand wires, elongation strain when destroying force value to steel strand wires in gauge length (group) measures record, can Real-time
Existing data acquisition, and the maximum displacement peak value in steel strand wires test for static load at the maximum, force moment is recorded, after being processed through software systems
Draw the test result of overall strain.
2nd, anchorage of the invention, fixture and connector static load anchoring test overall strain measurement apparatus, are easily installed and operate,
Overall strain measurement apparatus gauge length 1m, displacement sensor scope 50mm, precision ± 0.01mm, certainty of measurement is good.
3rd, anchorage of the invention, fixture and connector static load anchoring test overall strain measurement apparatus, can avoid traditional examination
Estimate frame stagnation pressure compression deformation and manual test steel strand wires by testing loading jack piston elongation, experience in proved recipe method
The parameters such as neck-in carry out the calculating of overall strain；Solve tradition amount of piston displacement and represent steel strand wires practical distortion amount, essence
Degree is low, and unstable, accuracy is poor；Security risk during artificial removal jack piston displacement transducer can also be avoided；In examination
Part does not produce influence to overall strain measurement apparatus when destroying, improve the measurement stability of measurement apparatus.
4th, anchorage of the invention, fixture and connector static load anchoring test overall strain measurement apparatus, left end steel strand wires are clamped
Part and right-hand member steel strand wires clamping element clamp the edge of a knife and constitute by the steel strand wires that chuck body and madial wall are fixedly mounted with, reduce clamping element with
Contact area between steel strand wires, improves the accuracy of detection of displacement.
5th, anchorage of the present utility model, fixture and connector static load anchoring test overall strain measurement apparatus, left sleeve, right set
Cylinder is PVC material sleeves, and frictional resistance is small, and operation slide block does not influence certainty of measurement；Lighter deadweight helps to reduce measurement
Error.
6th, anchorage of the invention, fixture and connector static load anchoring test overall strain measurement apparatus, structure design are compact, can
With direct measurement steel strand wires overall strain, high precision, accuracy is good, more directly perceived easy, it is easy to manufacture, low cost, is suitable to row
Popularity is used in the industry.
Brief description of the drawings
Fig. 1 is the structural representation of measurement apparatus of the present utility model.
Description of reference numerals：
The tested steel of the right sleeve of 1- left sleeves, 2-, 3- displacement transducers, 4- left end steel strand wires clamping element, 5- links, 6- is twisted
Line, 7- right-hand member steel strand wires clamping element, 8- steel strand wires clamp the edge of a knife.
Specific embodiment
Below by specific embodiment, the utility model is described in further detail, following examples be it is descriptive, no
It is limited, it is impossible to which protection domain of the present utility model is limited with this.
A kind of anchorage, fixture and connector static load anchoring test overall strain measurement apparatus, it includes left sleeve 1, right sleeve
2nd, displacement transducer 3, left end steel strand wires clamping element 4, right-hand member steel strand wires clamping element 7, right sleeve coaxial package is in the left sleeve
Interior, displacement transducer is installed in moving sleeve, and fixing end and the left sleeve of displacement transducer are fixedly mounted, displacement transducer
Test lead is fixedly connected with the end of right sleeve, and left sleeve is fixedly connected by link 5 with left end steel strand wires clamping element, right set
Cylinder is fixedly connected with right-hand member steel strand wires clamping element.Left end steel strand wires clamping element and right-hand member steel strand wires clamping element by chuck body and
The steel strand wires that madial wall is fixedly mounted with clamp the edge of a knife 8 and constitute.Also include a data collection control unit, data collection control unit bag
Include data acquisition and converting unit and computer unit.The signal output part of displacement transducer is connected to the data acquisition control list
The collection of unit and converting unit.Left sleeve, right sleeve are PVC material sleeves, and frictional resistance is small, operation slide block, do not influence to survey
Accuracy of measurement.
The operation principle of this anchorage, fixture and connector static load anchoring test overall strain measurement apparatus is：
1) be clamped in the left and right end steel strand wires clamping element of measurement apparatus on tested steel strand wires 6 by, left and right end steel strand wires folder
Gauge length is 1m between 2 clamping points of tight part；
2) with the increase steel strand wires elongation strain exerted a force to steel strand wires in experiments, clamp two left and right end steel strand wires
Spacing between part also changes, so that the axis direction elongation of displacement transducer delay test device, displacement transducer
The elongation is transmitted into data acquisition and the converting unit to data collection control unit, after being processed through the calculating of computer unit
Overall strain and strain peak value are shown on a computer display.
The calculation of described overall strain is：ε=Δ l/L (ε-overall strain；Δ l-gauge length internal strain amount mm；L_ is marked
Distance degree mm).
The calculation of described strain peak value is：
(ε max-strain peak value).
Although disclosing embodiment of the present utility model and accompanying drawing for the purpose of illustration, those skilled in the art can be with
Understand：Not departing from the utility model and spirit and scope of the appended claims, various replacements, change and modifications all be can
Can, therefore, scope of the present utility model is not limited to embodiment and accompanying drawing disclosure of that.
Claims (4)
1. a kind of anchorage, fixture and connector static load anchoring test overall strain measurement apparatus, it is characterised in that：Including left sleeve,
Right sleeve, displacement transducer, left end steel strand wires clamping element, right-hand member steel strand wires clamping element, right sleeve coaxial package is in the left set
In cylinder, institute's displacement sensors are installed in moving sleeve, and fixing end and the left sleeve of displacement transducer are fixedly mounted, and displacement is passed
The test lead of sensor is fixedly connected with the end of right sleeve, and left sleeve is fixed with left end steel strand wires clamping element by link and connected
Connect, right sleeve is fixedly connected with right-hand member steel strand wires clamping element.
2. a kind of anchorage according to claim 1, fixture and connector static load anchoring test overall strain measurement apparatus, it is special
Levy and be：Described left end steel strand wires clamping element is twisted with right-hand member steel strand wires clamping element by the steel that chuck body and madial wall are fixedly mounted with
The tight edge of a knife of wire clamp is constituted.
3. a kind of anchorage according to claim 1, fixture and connector static load anchoring test overall strain measurement apparatus, it is special
Levy and be：A data collection control unit is also included, the signal output part of described displacement transducer is connected to the data and adopts
Collection control unit.
4. a kind of anchorage according to claim 1, fixture and connector static load anchoring test overall strain measurement apparatus, it is special
Levy and be：Described left sleeve, right sleeve are PVC material sleeves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621402580.8U CN206248462U (en) | 2016-12-20 | 2016-12-20 | Anchorage, fixture and connector static load anchoring test overall strain measurement apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621402580.8U CN206248462U (en) | 2016-12-20 | 2016-12-20 | Anchorage, fixture and connector static load anchoring test overall strain measurement apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206248462U true CN206248462U (en) | 2017-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621402580.8U Active CN206248462U (en) | 2016-12-20 | 2016-12-20 | Anchorage, fixture and connector static load anchoring test overall strain measurement apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106596257A (en) * | 2016-12-20 | 2017-04-26 | 天津市交通科学研究院 | Anchorage device, clamp and connector static load anchoring test total strain measurement apparatus and method thereof |
-
2016
- 2016-12-20 CN CN201621402580.8U patent/CN206248462U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106596257A (en) * | 2016-12-20 | 2017-04-26 | 天津市交通科学研究院 | Anchorage device, clamp and connector static load anchoring test total strain measurement apparatus and method thereof |
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