CN105157900B - The prestressed measurement apparatus of membrane material - Google Patents
The prestressed measurement apparatus of membrane material Download PDFInfo
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- CN105157900B CN105157900B CN201510548436.9A CN201510548436A CN105157900B CN 105157900 B CN105157900 B CN 105157900B CN 201510548436 A CN201510548436 A CN 201510548436A CN 105157900 B CN105157900 B CN 105157900B
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- membrane material
- distance rod
- measurement apparatus
- thin plate
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Abstract
The embodiments of the invention provide a kind of prestressed measurement apparatus of membrane material.The device mainly includes：Digital displaying push-and-pull tensiometer, distance rod, loading rectangular thin plate and testing cassete, one end of the distance rod is connected with the digital displaying push-and-pull tensiometer, the other end is connected with the loading rectangular thin plate, the bottom of the upper grooves two sides of the testing cassete is respectively provided with neck, and can be inserted into multiple has certain thickness gear inserted sheet.The loading rectangular thin plate bottom contacts with surveyed membrane material surface, and the digital displaying push-and-pull tensiometer applies active force on the distance rod, and the loading rectangular thin plate promotes film surface to be tested to produce displacement under the promotion of the distance rod.The prestressed measurement apparatus of membrane material of the embodiment of the present invention is simple in construction, easy to use, is easy to execute-in-place, it is only necessary to apply load, you can obtains prestressing force, the prestressing force of membrane material effectively can be measured.
Description
Technical field
The present invention relates to the Technique In Membrane Structure field in building structure, more particularly to a kind of prestressed measurement dress of membrane material
Put.
Background technology
Jacking membrane structure is widely used in civil engineering, is that membrane material carried out into a certain degree of tensioning, and by membrane material with
Support bar and zip are collectively forming structural system.Tensioning is carried out to membrane material using the membrane material structure profile of itself, forms prestressing force,
Carrying and deformation of the prestressing force to membrane material structure play a decisive role.And the prestressing force that practice of construction tensioning membrane material obtains often with
Design load is not consistent, and the actual prestressing force for grasping membrane structure is particularly significant.
It is of the prior art a kind of the method tested of prestressing force is carried out to membrane structure to be：By being formed on membrane material surface
Suction, i.e. test device form a complete closed air tight region with tested membrane material surface, are formed by being evacuated to tested
The load of film surface, test out the prestressing force of membrane structure.
It is above-mentioned it is of the prior art to membrane structure carry out prestressing force tested method the shortcomings that be：Such device structure
Complexity, easy gas leakage, is not easy to on-the-spot test.
The content of the invention
The embodiments of the invention provide a kind of prestressed measurement apparatus of membrane material, realize in a straightforward manner to the pre- of membrane material
Stress is effectively measured.
To achieve these goals, this invention takes following technical scheme.
A kind of prestressed measurement apparatus of membrane material, including：Digital displaying push-and-pull tensiometer, distance rod and loading rectangular thin plate, it is described
One end of distance rod is connected with the digital displaying push-and-pull tensiometer, and the other end is connected with the loading rectangular thin plate, the loading rectangle
Thin plate bottom contacts with surveyed membrane material surface, and the digital displaying push-and-pull tensiometer applies active force on the distance rod, the loading
Rectangular thin plate promotes film surface to be tested to produce displacement under the promotion of the distance rod.
Preferably, described device also includes testing cassete, and the middle and upper part of the testing cassete and medium position are both provided with one and opened
The level board of groove, fluting size is identical with the section of the loading rectangular thin plate, and a groove is formed at the top of the testing cassete,
The bottom of groove two sides is respectively provided with neck, and the open no bottom plate in bottom of the testing cassete, bottom supported along four sides is in the film surface
On.
Preferably, described device also includes supporting case, and the supporting case is placed in the groove on the testing cassete top, described
Supporting case is internally provided with distance rod, and the upper end center of the supporting case is provided with a circular hole, the digital displaying push-and-pull tensiometer top
The screw terminal in portion is connected by the circular hole with the screw of the distance rod termination.
Preferably, display screen, digital display push-and-pull described in the display screen real-time display are provided with the digital displaying push-and-pull tensiometer
The thrust that power meter applies.
Preferably, gear inserted sheet is inserted in the neck, the gear inserted sheet supports the supporting case.
Preferably, the quantity of the gear inserted sheet is multiple that the thickness of different stalls inserted sheet differs.
Preferably, the front of the supporting case is provided with rectangular aperture, and the rectangular aperture pushes away for connecting the digital display
Tensiometer and distance rod.
Preferably, nut and nut, the nut is set to be located at the lower end of the nut, the spiral shell on the distance rod
Cap supports the screw of the distance rod termination.
Preferably, the distance rod is welded to connect with the loading rectangular thin plate.
The membrane material of the embodiment of the present invention is prestressed it can be seen from the technical scheme provided by embodiments of the invention described above
Measurement apparatus is simple in construction, easy to use, is easy to execute-in-place, it is only necessary to applies linear load, you can measure prestressing force, can be with
The prestressing force of membrane material is effectively measured.
The additional aspect of the present invention and advantage will be set forth in part in the description, and these will become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Accompanying drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this
For the those of ordinary skill of field, without having to pay creative labor, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is the front view of the prestressed measurement apparatus of membrane material of the embodiment of the present invention；
Fig. 2 is the side view of the prestressed measurement apparatus of membrane material of the embodiment of the present invention；
Fig. 3, Fig. 4 are the profile of the prestressed measurement apparatus of membrane material of the embodiment of the present invention；
Fig. 5 is the front view of digital displaying push-and-pull tensiometer；
Fig. 6 a and 6b are respectively distance rod and the front view and top view that load rectangular thin plate；
Fig. 7 a, 7b and 7c are respectively the front view, side view and top view of testing cassete；
Fig. 8 a and 8b are respectively the front view and top view of supporting case；
Fig. 9 a and 9b are respectively the front view and side view of gear inserted sheet；
Figure 10 a and 10b are respectively the front view and top view of nut；
Figure 11 a and 11b are respectively the front view and top view of nut；
Label in figure：1 digital displaying push-and-pull tensiometer；Screw terminal at the top of 1a digital displaying push-and-pull tensiometers；2 distance rods；2a distance rods termination
Screw；3 loading rectangular thin plates；4 testing cassetes；Level boards one of the 4a with fluting；Level boards two of the 4b with fluting；4c necks；4d is recessed
Groove；5 supporting cases；5a supporting case front openings；5b supports box top circular hole；6 gear inserted sheets；6a gears inserted sheet one (1mm)；6b shelves
Position inserted sheet two (1.5mm)；7 nuts；8 nuts.
Embodiment
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng
The embodiment for examining accompanying drawing description is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singulative " one " used herein, " one
It is individual ", " described " and "the" may also comprise plural form.It is to be further understood that what is used in the specification of the present invention arranges
Diction " comprising " refer to the feature, integer, step, operation, element and/or component be present, but it is not excluded that in the presence of or addition
One or more other features, integer, step, operation, element, component and/or their groups.It should be understood that when we claim member
Part is " connected " or during " coupled " to another element, and it can be directly connected or coupled to other elements, or there may also be
Intermediary element.In addition, " connection " used herein or " coupling " can include wireless connection or coupling.Wording used herein
"and/or" includes any cell of one or more associated list items and all combined.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific terminology) with the general understanding identical meaning with the those of ordinary skill in art of the present invention.Should also
Understand, those terms defined in such as general dictionary, which should be understood that, to be had and the meaning in the context of prior art
The consistent meaning of justice, and unless defined as here, will not be with idealizing or the implication of overly formal be explained.
For ease of the understanding to the embodiment of the present invention, done further by taking several specific embodiments as an example below in conjunction with accompanying drawing
Explanation, and each embodiment does not form the restriction to the embodiment of the present invention.
The front view of the prestressed measurement apparatus of membrane material of the embodiment of the present invention as shown in figure 1, side view as shown in Fig. 2
As shown in Figure 3, Figure 4, the structure of the prestressed measurement apparatus of membrane material includes profile：1-digital displaying push-and-pull tensiometer, 2-distance rod,
3-loading rectangular thin plate, 4-testing cassete, 5-supporting case, 6-gear inserted sheet, 7-nut, 8-nut.One end of distance rod
It is connected with digital displaying push-and-pull tensiometer, the other end is connected with loading rectangular thin plate, and loading rectangular thin plate bottom contacts with tested film surface,
Digital displaying push-and-pull tensiometer applies active force on distance rod, and loading rectangular thin plate drives the film surface of membrane material under the promotion of distance rod
Produce displacement.
The front view of digital displaying push-and-pull tensiometer 1 provided in an embodiment of the present invention a kind of as shown in figure 5, including：Display screen and push away
Power head.The digital displaying push-and-pull tensiometer 1 has the function of taking peak value, for producing a concentrated force, during thrust is applied, and display
Shield the maximum thrust that can be applied with real-time display, one end of thrust collar is connected by nut with distance rod 2.
Fig. 6 a and 6b be respectively distance rod 2 and load rectangular thin plate 3 front view and top view, the other end of distance rod 2
It is vertically welded in the center of loading rectangular thin plate 3.Rectangular thin plate 3 long 20cm, wide 5cm are loaded, loading rectangular thin plate 3 is direct
Act on the film surface of prestressing force membrane material.Distance rod 2 is welded to connect with loading rectangular thin plate 3, and loading rectangular thin plate 3 passes through fluting
4a、4b。
Supporting case 5 between digital displaying push-and-pull tensiometer 1 and testing cassete 4, Fig. 8 a and 8b be respectively supporting case 5 front view and
Top view, supporting case 5 are placed in the groove on the top of testing cassete 4, and the bottom of supporting case 5 is on the inside of the groove 4d in testing cassete 4.Branch
Support the inside of box 5 and distance rod 2 is set.The upper end of supporting case 5 is used for supporting digital displaying push-and-pull tensiometer 1.The upper end center of supporting case 5 has one
Circular hole 5b, the screw terminal 1a at the top of digital displaying push-and-pull tensiometer is connected by circular hole 5b with the screw 2a of distance rod termination, with supporting case
Isolation.And the shell of digital displaying push-and-pull tensiometer 1 then contacts with supporting case.Do so and can be directly passed to number for the thrust of film surface
The influence of unsupported box in aobvious pull and push dynamometer.
The front of supporting case 5 has a rectangular aperture 5a, rectangular aperture 5a to be for the ease of connecting the He of digital displaying push-and-pull tensiometer 1
Distance rod 2.Nut 8 and nut 7 are arranged on distance rod 2, and nut 8 is located at the lower end of nut 7 and played a supportive role, a and 10b points of Figure 10
Not Wei nut front view and top view, Figure 11 a and 11b are respectively the front view and top view of nut.
Fig. 7 a, 7b and 7c are respectively the front view, side view and top view of testing cassete 4, and testing cassete 4 is made up of two parts,
Top is the groove of a rectangle, and for fixing supporting case, the bottom of groove two sides is respectively provided with neck, may be inserted into one
Determine the gear inserted sheet of thickness.Bottom is the open rectangular box in bottom, interior path length 25cm, wide 5cm, high 4cm.The bottom of rectangular box
Portion is placed on film surface, and the region of a rectangle is formed on film surface.Testing cassete middle and upper part and medium position have a level board respectively,
Have on two level boards and slotted with loading rectangular thin plate section identical, loading rectangular thin plate can be inserted into fluting,
Thrust is applied perpendicular on tested film surface, so as to form a long 25cm, wide 5cm stress area in tested film surface.It is described
Level board both ends are respectively provided with neck, and the open no bottom plate in bottom of the testing cassete, bottom supported along four sides is on the film surface.
Fig. 9 a and 9b are respectively the front view and side view of gear inserted sheet 6, and gear inserted sheet 6a, 6b are inserted in testing cassete 4
In neck 4c, gear inserted sheet 6a, 6b are used for paving supporting case.Gear inserted sheet is thickness 1mm and 1.5mm two pairs of rectangle steel discs,
By in the neck at gear inserted sheet insertion testing cassete groove both ends, pad in supporting case lower end, lift supporting case.So as to control
The displacement of whole push system.Two gear inserted sheets produce two shift values being previously set.
The application method of the prestressed measurement apparatus of membrane material is as follows：
The principle of the testing cassete is：In one piece of rectangle (length-width ratio 5：1) membrane material surface, one is applied to direction along long
Linear load, membrane material is set to produce a displacement.The relation of load and displacement as obtained by early-stage Study is, it is necessary to know that two groups push away
Data between power and displacement, you can obtain the actual prestressing force of membrane material.Application method is as follows：
1. zeroing
(1) digital displaying push-and-pull tensiometer returns to zero.Adjusted during by the weight of digital displaying push-and-pull tensiometer connection distance rod and loading rectangular thin plate
For zero point.
(2) system returns to zero.1.0mm and 1.5mm gear inserted sheet is stacked and is inserted into gear neck, is padded under supporting case
End.Equipment is positioned on level ground, loading rectangular thin plate is contacted with ground.At this time, digital displaying push-and-pull tensiometer is rotated, is twisted
The nut of tight distance rod, the numerical value for adjusting digital displaying push-and-pull tensiometer are just 0.At this time, cutter head just lifts from ground, and digital display pushes away
The shell of tensiometer just contacts with supporting case.
2. dispose instrument
Instrument is positioned on film surface, makes the measuring point on testing cassete center alignment film surface.The film surface back side also places one simultaneously
Film surface is sandwiched in centre by the rectangular box of individual formed objects, forms a rectangle stress area.
3. test
1.5mm inserted sheet is extracted from the neck of both ends, digital displaying push-and-pull tensiometer is adjusted to take peak value shelves, pushes down on digital display push-pull effort
Meter is not further added by numerical value, film surface generation displacement is acted on due to loading rectangular thin plate in pushing course, when displacement reaches
1.5mm, this displacement data obtain according to the thickness of washer, and digital displaying push-and-pull tensiometer shell contacts with supporting case, unnecessary thrust
It will not act on blade, but be delivered on supporting case.The numerical value of digital displaying push-and-pull tensiometer is now recorded, is as pushed into film surface
Thrust corresponding to 1.5mm displacements.
Similarly, then 1.0mm inserted sheets are extracted, the step of implementation as above, obtains film surface being pushed into corresponding to 2.5mm displacements
Thrust.
4. result
By two groups of obtained displacement-payload values, you can obtain the short prestressing force of the measuring point on film surface by equation below
P0：
P0=α2F2-α1F1
Wherein, F1, F2Refer to the thrust magnitude corresponding to film surface generation 1.0mm and 2.5mm displacements, α respectively1,α2It is to test
Before, the match value under the conditions of different parameters is obtained using finite element analysis, the two numerical value and membrane material prestressing force and modulus of elasticity
Substantially it is unrelated, it is only relevant with the displacement caused by membrane material, for this experimental rig, when displacement caused by film surface is respectively 1.0mm
During with 2.5mm, α1,α2Numerical value be 0.219 and 0.080.
In summary, the prestressed measurement apparatus of the membrane material of the embodiment of the present invention is simple in construction, easy to use, easily real
It is existing, it is easy to execute-in-place, it is only necessary to apply load, utilize simple mechanical relationship, you can prestressing force is obtained, can be to film
The prestressing force of material is effectively measured.
The embodiment of the present invention is by testing two groups of thrust-shift values, you can directly obtains prestressing force.With traditional bleeder
Membrane material prestressing force test device compare, the present invention using linear load load mode measure membrane material prestressing force, plant bulk
It is small, device is simple, easy to use.It will can be used for the prestressed monitoring during various types of films structure construction, and membrane structure validity period
Between stress distribution detection.
One of ordinary skill in the art will appreciate that：Accompanying drawing is the schematic diagram of one embodiment, module in accompanying drawing or
Flow is not necessarily implemented necessary to the present invention.
As seen through the above description of the embodiments, those skilled in the art can be understood that the present invention can
Realized by the mode of software plus required general hardware platform.Based on such understanding, technical scheme essence
On the part that is contributed in other words to prior art can be embodied in the form of software product, the computer software product
It can be stored in storage medium, such as ROM/RAM, magnetic disc, CD, including some instructions are causing a computer equipment
(can be personal computer, server, either network equipment etc.) performs some of each embodiment of the present invention or embodiment
Method described in part.
Each embodiment in this specification is described by the way of progressive, identical similar portion between each embodiment
Divide mutually referring to what each embodiment stressed is the difference with other embodiment.Especially for device or
For system embodiment, because it is substantially similar to embodiment of the method, so describing fairly simple, related part is referring to method
The part explanation of embodiment.Apparatus and system embodiment described above is only schematical, wherein the conduct
The unit that separating component illustrates can be or may not be it is physically separate, can be as the part that unit is shown or
Person may not be physical location, you can with positioned at a place, or can also be distributed on multiple NEs.Can root
Factually border needs to select some or all of module therein realize the purpose of this embodiment scheme.Ordinary skill
Personnel are without creative efforts, you can to understand and implement.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, the change or replacement that can readily occur in,
It should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with scope of the claims
It is defined.
Claims (8)
- A kind of 1. prestressed measurement apparatus of membrane material, it is characterised in that including：Digital displaying push-and-pull tensiometer, distance rod, loading Thin Rectangular Plate and testing cassete, one end of the distance rod are connected with the digital displaying push-and-pull tensiometer, and the other end connects with the loading rectangular thin plate Connect, the loading rectangular thin plate bottom is contacted with surveyed membrane material surface, and the digital displaying push-and-pull tensiometer applies active force to be pushed away described On power bar, the loading rectangular thin plate promotes film surface to be tested to produce displacement under the promotion of the distance rod；The middle and upper part of the testing cassete and medium position are both provided with the level board of a fluting, size of slotting and the loading rectangle The section of thin plate is identical, and a groove is formed at the top of the testing cassete, and the bottom of groove two sides is respectively provided with neck, the survey The open no bottom plate in bottom of box is tried, bottom supported along four sides is on the film surface.
- 2. the prestressed measurement apparatus of membrane material according to claim 1, it is characterised in that described device also includes support Box, the supporting case are placed in the groove on the testing cassete top, and the supporting case is internally provided with distance rod, the support The upper end center of box is provided with a circular hole, and the screw terminal at the top of the digital displaying push-and-pull tensiometer passes through the circular hole and the distance rod The screw of termination is connected.
- 3. the prestressed measurement apparatus of membrane material according to claim 1, it is characterised in that set in the digital displaying push-and-pull tensiometer Display screen is equipped with, the thrust that digital displaying push-and-pull tensiometer described in the display screen real-time display applies.
- 4. the prestressed measurement apparatus of membrane material according to claim 2, it is characterised in that gear inserted sheet is inserted into the card In groove, the gear inserted sheet supports the supporting case.
- 5. the prestressed measurement apparatus of membrane material according to claim 4, it is characterised in that the quantity of the gear inserted sheet is Multiple, the thickness of different stalls inserted sheet differs.
- 6. the prestressed measurement apparatus of membrane material according to claim 2, it is characterised in that the front setting of the supporting case There is rectangular aperture, the rectangular aperture is used for connecting the digital displaying push-and-pull tensiometer and distance rod.
- 7. the prestressed measurement apparatus of membrane material according to claim 1, it is characterised in that spiral shell is set on the distance rod Female and nut, the nut are located at the lower end of the nut, and the nut supports the screw of the distance rod termination.
- 8. the prestressed measurement apparatus of membrane material according to claim 1, it is characterised in that the distance rod and the loading Rectangular thin plate is welded to connect.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510548436.9A CN105157900B (en) | 2015-08-31 | 2015-08-31 | The prestressed measurement apparatus of membrane material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510548436.9A CN105157900B (en) | 2015-08-31 | 2015-08-31 | The prestressed measurement apparatus of membrane material |
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| CN105157900A CN105157900A (en) | 2015-12-16 |
| CN105157900B true CN105157900B (en) | 2017-11-14 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107966234B (en) * | 2017-11-24 | 2020-02-28 | 天津工业大学 | Membrane surface stress distribution measuring device and method based on fiber bragg grating sensing |
| CN109933101B (en) * | 2019-03-15 | 2021-10-22 | 上海交通大学 | High-precision uniform stress field film bidirectional tensioning control device |
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| JP2961262B1 (en) * | 1998-07-01 | 1999-10-12 | 運輸省船舶技術研究所長 | Thickness measurement method using repulsive force against impact load |
| CN1558202A (en) * | 2004-01-18 | 2004-12-29 | 东华大学 | Pressure testing method and device in circumstances of single sided low tension compression of fabric |
| CN1847810A (en) * | 2005-04-15 | 2006-10-18 | 上海同磊土木工程技术有限公司 | Film pre-tension measuring method |
| CN101387563A (en) * | 2008-10-29 | 2009-03-18 | 重庆大学 | Construction film structure pre-tension measurement method and apparatus thereof |
| CN101788426A (en) * | 2010-03-04 | 2010-07-28 | 河北科技大学 | Device for testing axial compressibility of fiber material |
| CN203785837U (en) * | 2014-01-13 | 2014-08-20 | 上海邑成测试设备有限公司 | High-precision pressure calibration apparatus |
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2015
- 2015-08-31 CN CN201510548436.9A patent/CN105157900B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2961262B1 (en) * | 1998-07-01 | 1999-10-12 | 運輸省船舶技術研究所長 | Thickness measurement method using repulsive force against impact load |
| CN1558202A (en) * | 2004-01-18 | 2004-12-29 | 东华大学 | Pressure testing method and device in circumstances of single sided low tension compression of fabric |
| CN1847810A (en) * | 2005-04-15 | 2006-10-18 | 上海同磊土木工程技术有限公司 | Film pre-tension measuring method |
| CN101387563A (en) * | 2008-10-29 | 2009-03-18 | 重庆大学 | Construction film structure pre-tension measurement method and apparatus thereof |
| CN101788426A (en) * | 2010-03-04 | 2010-07-28 | 河北科技大学 | Device for testing axial compressibility of fiber material |
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| CN105157900A (en) | 2015-12-16 |
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