CN104880365B - A kind of reinforcing bar shearing resistance test fixture - Google Patents
A kind of reinforcing bar shearing resistance test fixture Download PDFInfo
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- CN104880365B CN104880365B CN201510376735.9A CN201510376735A CN104880365B CN 104880365 B CN104880365 B CN 104880365B CN 201510376735 A CN201510376735 A CN 201510376735A CN 104880365 B CN104880365 B CN 104880365B
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- hole
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- reinforcing bar
- clamp groove
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Abstract
The invention discloses a kind of reinforcing bar shearing resistance test fixtures, two reinforcing bar fixed blocks including grip block and positioned at grip block bottom, the bottom surface of the grip block is provided with strip-shaped clamp groove in horizontal linear direction, the top surface of two reinforcing bar fixed blocks is each provided with the fixture block being slidably matched with strip-shaped clamp groove and enables two reinforcing bar fixed blocks along strip-shaped clamp groove length direction relative motion, the positioning device of the reinforcing bar fixed block positioning can be made by being provided on the grip block, strip-shaped clamp groove length direction coaxial inner conductor described in two reinforcing bar fixed block upper edges is each provided with through-hole.The configuration of the present invention is simple, it is easy to operate, shearing resistance experiment can be carried out to the reinforcing bar of different diameter specifications, reduce experiment input cost, improve conventional efficient.
Description
Technical field
The present invention relates to a kind of reinforcement property test fixtures, and in particular to a kind of reinforcing bar shearing resistance test fixture.
Background technology
In order to ensure the mechanical strength of building, need to test to the shearing resistance of welded steel fabric solder joint.Shearing resistance
Experiment is to measure drag performance of the reinforcing bar under shearing force, be test reinforcing bar mechanical test fundamental test method it
One, the special fixture being placed on experiment machine grip holder is realized.The common method of inspection is randomly selects two reinforcing bars according to T junction
Structure progress is integrally welded, fixes the transverse ends of reinforcing bar sample, then applies test force to the longitudinal end of reinforcing bar sample, with
Examine its shearing resistance.The fixture of currently available technology moderate resistance shear test is all that one and T-steel muscle are set in chuck body
T-steel muscle is positioned in T-slot and carries out test experiments by the T-slot to match.But the reinforcing bar of different-diameter size is directed to,
Its when shearing resistance is tested, the transverse steel fixed point at T-steel muscle pad both ends be it is different, thus must needle
Prepare the reinforcing bar of different size diameter the fixture of more set different sizes, the input cost of experiment will be increased, it is in addition right
When the T-steel muscle of multigroup different-diameter carries out test experiments, it is necessary to different fixtures is replaced on testing machine, reduces experiment
Efficiency.
Invention content
In view of the above shortcomings of the prior art, the technical problems to be solved by the invention are：How a kind of structure letter is provided
It is single, it is easy to operate, input cost is reduced, improves the reinforcing bar shearing resistance test fixture of conventional efficient.
In order to solve the above-mentioned technical problem, present invention employs following technical solutions：
A kind of reinforcing bar shearing resistance test fixture, it is characterised in that：Two steel including grip block and positioned at grip block bottom
Muscle fixed block, the bottom surface of the grip block are provided with a strip-shaped clamp groove, two reinforcing bar fixed blocks in horizontal linear direction
Top surface be each provided with the fixture block being slidably matched with strip-shaped clamp groove and enable two reinforcing bar fixed blocks along strip-shaped clamp groove
Length direction relative motion is provided with the positioning device that can make the reinforcing bar fixed block positioning, two institutes on the grip block
It states strip-shaped clamp groove length direction coaxial inner conductor described in reinforcing bar fixed block upper edge and is each provided with through-hole.
In the present invention, during experiment, two pieces of reinforcing bar fixed blocks for being operated first grip block bottom are slided along opposite direction, and two
The distance between block reinforcing bar fixed block must be greater than the length of transverse steel in T-steel muscle, conveniently make the both ends of transverse steel
Reinforcing bar is inserted respectively into fix in through-hole in the block.Then two pieces of reinforcing bar fixed blocks are operated again to slide along relative direction, are adjusted respectively
The reinforcing bar fixed position on two pieces of reinforcing bar fixed blocks and the distance of T-steel muscle pad are saved, it will by positioning device after regulating
The positioning of reinforcing bar fixed block is fixed, and the vertical reinforcement for finally being clamped grip block and T-steel muscle respectively using testing machine is detected
Experiment.Its is simple in structure, easy to operate, and only need to adjust the distance between two reinforcing bar fixed blocks can meet different size steel
The test experience requirement of muscle, reduces the input of fixture cost of manufacture, while also no longer frequently replaces fixture in an experiment, improves
Conventional efficient.
As an optimization, the positioning device include clamping screw and on the grip block side and with the bar shaped card
The strip through-hole of slot connection, strip through-hole are less than described along the length direction setting of the strip-shaped clamp groove and the length of strip through-hole
The length of strip-shaped clamp groove, the clamping screw include bolt head and shank of bolt, and one end of shank of bolt is stretched across the strip through-hole
Enter into the strip-shaped clamp groove, the other end is fixedly connected with the bolt head, and the width across corners of the bolt head are more than the item
The width of shape through-hole, the fixture block are equipped with the screw hole with the shank of bolt thread fitting, and the length of the shank of bolt is less than institute
State the sum of the depth of strip through-hole and the depth of the screw hole.Clamping screw is rotated, bolt head is made to be directed away from strip through-hole side
To movement, such fixture block can move freely in strip-shaped clamp groove.When needing stationary positioned, reinforcing bar fixed block position is regulated
It postpones, rotates clamping screw, make bolt head mobile towards strip through-hole direction and be connected on the grip block of strip through-hole both sides,
Thus fixture block can not just be continued to move in strip-shaped clamp groove, the positioning of reinforcing bar fixed block is completed, easy to operate, is improved
Test experience efficiency.
As an optimization, cylindrical type supporting rod, the axial line of cylindrical type supporting rod are fixedly connected at the top of the grip block
Perpendicular to the axial line of the through-hole, the outer surface of the cylindrical type supporting rod is equipped with annular knurl line.During test experience,
Experiment machine grip holder needs to clamp grip block, but when grip block is clamped, it is necessary to it adjusts in T-steel muscle at transverse steel
In horizontality.And the axial line of cylindrical type supporting rod is perpendicular to the axial line of through-hole, then no matter the clamping head of testing machine why
Cylindrical type supporting rod is clamped, the levelness of transverse steel in T-steel muscle is remained, in this way in fixture installation
When just reduce adjustment link, shorten the time of test experience, improve work efficiency.
As an optimization, strip-shaped clamp groove length direction described in the side upper edge of the grip block is equipped with to measure described in two
Apart from the graduated scale of size between reinforcing bar fixed block.Relative to adjust two reinforcing bar fixed blocks after still further surveyed with measuring scale
Amount review, further simplifies operation sequence, improves work efficiency.
As an optimization, the through-hole is cylindrical type through-hole, and the bottom of cylindrical type through-hole is along the cylindrical type through-hole length side
To equipped with V-groove, two sides of V-groove are tangent with the cylindrical type through-hole respectively.Transverse steel in T-steel muscle is inserted into
To after through-hole, transverse steel is just embedded into V-groove, and V-groove can transversely reinforcing bar be fixed in the radial direction, avoid
It is subjected to displacement during test experience, causes the inaccuracy of experimental result.In addition V-groove is adapted to various diameters
Reinforcing bar, improve versatility.
As an optimization, the grip block is equipped with the opening that can be inserted into for the fixture block in the strip-shaped clamp groove.Work as T
Transverse steel length is more than two reinforcing bar fixed blocks in the sliding distance on grip block in steel bar, can be by fixture block by opening
It mouthful is taken out from grip block, after individually reinforcing bar fixed block is sleeved on transverse steel, then by being open fixture block is inserted into bar shaped
In card slot, versatility is improved.
As an optimization, the highest point of the through-hole inner top surface is recessed with multiple along described along the through-hole length direction interval
The pilot hole of through-hole radial direction, the through-hole is interior to be equipped with bar shaped press strip, the top surface of bar shaped press strip along the through-hole length direction
Be fixedly connected with guide rod with the corresponding position of the pilot hole, one end of guide rod extend into the pilot hole and with institute
It states pilot hole to be slidably matched, the bullet for compressing reinforcing bar to be detected for the bar shaped press strip and spring force being provided is equipped in the pilot hole
Spring, one end of spring are connect with pilot hole bottom, and the other end is connect with the guide rod.Transverse steel is inserted into T-steel muscle
In through-hole, and after two pieces of reinforcing bar fixed blocks to corresponding position of adjusting, it is possible to be detected experiment.But before testing, it examines
Survey personnel may touch T-steel muscle, and the fixed position that may result in transverse steel in T-steel muscle in this way changes, shadow
Ring the accuracy of experimental result.First operation bar shaped press strip is moved to via top, facilitates insertion reinforcing bar, and reinforcing bar insertion is had good positioning
Afterwards, bar shaped press strip is unclamped, pressing clip handles reinforcing bar to bar shaped press strip under spring force, prevents reinforcing bar from moving, structure letter
It is single, it is easy to use, improve the accuracy of test experience.
As an optimization, the bar shaped press strip is equipped with to clamp outside reinforcing bar to be detected towards the side of the through-hole inner bottom surface
The arc-shaped surface on surface is bonded with resilient rubbber cushion on the surface of arc-shaped surface.Clamping face is made more to be bonded with reinforcing bar outer surface,
Mutual frictional force between increasing simultaneously fixes reinforcing bar more firm.
In conclusion the beneficial effects of the present invention are：The configuration of the present invention is simple, it is easy to operate, it can be to different-diameter
The reinforcing bar of specification carries out shearing resistance experiment, reduces experiment input cost, improves conventional efficient.
Description of the drawings
In order to make the purpose, technical scheme and advantage of invention clearer, the present invention is made into one below in conjunction with attached drawing
The detailed description of step, wherein：
Fig. 1 is the front view of the present invention；
Fig. 2 is the sectional view of the present invention；
Fig. 3 is the sectional view of reinforcing bar fixed block in the present invention.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
As shown in Figure 1 to Figure 3, a kind of reinforcing bar shearing resistance test fixture in present embodiment, including 1 He of grip block
Two reinforcing bar fixed blocks 2 positioned at grip block bottom, the bottom surface of the grip block 1 are provided with a bar shaped in horizontal linear direction
Card slot 3, the top surface of two reinforcing bar fixed blocks 2 are each provided with the fixture block being slidably matched with strip-shaped clamp groove 34 and cause two institutes
Stating reinforcing bar fixed block 2 can be along 3 length direction relative motion of strip-shaped clamp groove, and the steel can be made by being provided on the grip block 1
The positioning device that muscle fixed block 2 positions, 3 length direction coaxial inner conductor of strip-shaped clamp groove described in two 2 upper edges of reinforcing bar fixed block
It is each provided with through-hole 5.
In present embodiment, the positioning device include clamping screw and on 1 side of grip block and with
The strip through-hole 6 that the strip-shaped clamp groove 3 connects, the length direction of strip through-hole 6 along the strip-shaped clamp groove 3 is set and strip through-hole
6 length is less than the length of the strip-shaped clamp groove 3, and the clamping screw includes bolt head 7 and shank of bolt 8, one end of shank of bolt 8
It is extend into the strip-shaped clamp groove 3 across the strip through-hole 6, the other end is fixedly connected with the bolt head 7, the bolt head
7 width across corners are more than the width of the strip through-hole 6, and the fixture block 4 is equipped with the screw hole with 8 thread fitting of shank of bolt
9, the length of the shank of bolt 8 is less than the sum of the depth of the strip through-hole 6 and the depth of the screw hole 9.
In present embodiment, the top of the grip block 1 is fixedly connected with cylindrical type supporting rod 10, cylindrical type clamping
For the axial line of bar 10 perpendicular to the axial line of the through-hole 5, the outer surface of the cylindrical type supporting rod 10 is equipped with annular knurl line.
In present embodiment, 3 length direction of strip-shaped clamp groove described in the side upper edge of the grip block 1 is equipped with to survey
Measure the graduated scale 11 apart from size between two reinforcing bar fixed blocks 2.
In present embodiment, the through-hole 5 is cylindrical type through-hole, and the bottom of cylindrical type through-hole leads to along the cylindrical type
Hole length direction is equipped with V-groove, and two sides of V-groove are tangent with the cylindrical type through-hole respectively.
In present embodiment, the grip block 1, which is equipped with, to be inserted into the strip-shaped clamp groove 3 for the fixture block 4
Interior opening.
In present embodiment, the highest point of 5 inner top surface of through-hole is recessed with along the 5 length direction interval of through-hole
Multiple pilot holes 12 along 5 radial direction of through-hole, the through-hole 5 is interior to be equipped with bar shaped press strip along 5 length direction of through-hole
13, the top surface of bar shaped press strip 13 and the 12 corresponding position of pilot hole are fixedly connected with guide rod 14, and the one of guide rod 14
End extend into the pilot hole 12 and is slidably matched with the pilot hole 12, is equipped in the pilot hole 12 as the bar shaped pressure
Item 13 compresses the spring 15 that reinforcing bar to be detected provides spring force, and one end of spring 15 is connect with 12 bottom of pilot hole, the other end and
The guide rod 14 connects.
In present embodiment, the bar shaped press strip 13 is equipped with to clamp towards the side of 5 inner bottom surface of through-hole
The arc-shaped surface of reinforcing bar outer surface to be detected is bonded with resilient rubbber cushion on the surface of arc-shaped surface.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although passing through ginseng
According to the preferred embodiment of the present invention, invention has been described, it should be appreciated by those of ordinary skill in the art that can
Various changes are made to it in the form and details, the present invention that is limited without departing from the appended claims
Spirit and scope.
Claims (6)
1. a kind of reinforcing bar shearing resistance test fixture, it is characterised in that：Two reinforcing bars including grip block and positioned at grip block bottom
Fixed block, the bottom surface of the grip block are provided with strip-shaped clamp groove, the top surface of two reinforcing bar fixed blocks in horizontal linear direction
It is each provided with the fixture block being slidably matched with strip-shaped clamp groove and enables two reinforcing bar fixed blocks along strip-shaped clamp groove length side
To relative motion, the positioning device that can make the reinforcing bar fixed block positioning, two reinforcing bars are provided on the grip block
Strip-shaped clamp groove length direction coaxial inner conductor is each provided with through-hole described in fixed block upper edge；The through-hole is cylindrical type through-hole, round
The bottom of column type through-hole is equipped with V-groove along the cylindrical type through-hole length direction, two sides of V-groove respectively with the cylinder
Type through-hole is tangent；The highest point of the through-hole inner top surface is recessed with multiple along the through-hole diameter along the through-hole length direction interval
To the pilot hole in direction, be equipped with bar shaped press strip along the through-hole length direction in the through-hole, the top surface of bar shaped press strip with it is described
The corresponding position of pilot hole is fixedly connected with guide rod, one end of guide rod extend into the pilot hole and with the guiding
Hole is slidably matched, and the spring for compressing reinforcing bar to be detected for the bar shaped press strip and providing spring force, spring are equipped in the pilot hole
One end connect with pilot hole bottom, the other end is connect with the guide rod.
2. a kind of reinforcing bar shearing resistance test fixture according to claim 1, it is characterised in that：The positioning device includes lock
Tight bolt and on the grip block side and the strip through-hole that is connected with the strip-shaped clamp groove, strip through-hole is along the bar shaped
The length direction setting of card slot and the length of strip through-hole are less than the length of the strip-shaped clamp groove, and the clamping screw includes bolt
Head and shank of bolt, one end of shank of bolt are extend into across the strip through-hole in the strip-shaped clamp groove, the other end and the bolt
Head is fixedly connected, and the width across corners of the bolt head are more than the width of the strip through-hole, and the fixture block is equipped with and the spiral shell
The screw hole of tightening latch thread fitting, the length of the shank of bolt be less than the depth of the strip through-hole and the screw hole depth it
With.
3. a kind of reinforcing bar shearing resistance test fixture according to claim 1, it is characterised in that：The top of the grip block is consolidated
Surely cylindrical type supporting rod is connected with, the axial line of cylindrical type supporting rod is perpendicular to the axial line of the through-hole, the cylindrical type folder
The outer surface for holding bar is equipped with annular knurl line.
4. a kind of reinforcing bar shearing resistance test fixture according to claim 1, it is characterised in that：On the side of the grip block
The graduated scale for measuring between two reinforcing bar fixed blocks apart from size is equipped with along the strip-shaped clamp groove length direction.
5. a kind of reinforcing bar shearing resistance test fixture according to claim 1, it is characterised in that：The grip block is equipped with energy
The opening being enough inserted into for the fixture block in the strip-shaped clamp groove.
6. a kind of reinforcing bar shearing resistance test fixture according to claim 1, it is characterised in that：The bar shaped press strip is towards institute
The side for stating through-hole inner bottom surface is equipped with for the arc-shaped surface that clamps reinforcing bar outer surface to be detected, is bonded on the surface of arc-shaped surface
Flexible rubber pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510376735.9A CN104880365B (en) | 2015-07-01 | 2015-07-01 | A kind of reinforcing bar shearing resistance test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510376735.9A CN104880365B (en) | 2015-07-01 | 2015-07-01 | A kind of reinforcing bar shearing resistance test fixture |
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| Publication Number | Publication Date |
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| CN104880365A CN104880365A (en) | 2015-09-02 |
| CN104880365B true CN104880365B (en) | 2018-06-19 |
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| CN201510376735.9A Active CN104880365B (en) | 2015-07-01 | 2015-07-01 | A kind of reinforcing bar shearing resistance test fixture |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106153444B (en) * | 2016-08-29 | 2018-11-13 | 北京普莱德新能源电池科技有限公司 | A kind of device for power battery module side plate tension test |
| CN107884284B (en) * | 2018-01-18 | 2021-09-03 | 惠州市远大电梯有限公司 | Elevator material shear resistance detection equipment |
| CN109079535A (en) * | 2018-09-28 | 2018-12-25 | 河南永益同丰智能科技有限公司 | Clamping device is used in a kind of production of reinforcing bar |
| CN113607572A (en) * | 2020-12-28 | 2021-11-05 | 江苏省建筑工程质量检测中心有限公司 | Channel body shear strength mechanical test tool and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2669173Y (en) * | 2003-12-10 | 2005-01-05 | 同济大学 | Concrete-bar welding-net soldered-dot shearing-test clamp |
| KR100792688B1 (en) * | 2005-09-06 | 2008-02-04 | 민선영 | Structure and Method of Inspection for Corrosion Testing of Reinforced Concrete Structures in Bridges and Buildings |
| CN102141489B (en) * | 2010-12-13 | 2014-09-24 | 中国航空工业集团公司北京航空材料研究院 | Clamp improving bending and interlaminar shearing test efficiency of composite material |
| CN202346582U (en) * | 2011-12-01 | 2012-07-25 | 中国核工业华兴建设有限公司 | Large diameter steel bar hoisting clamp |
| CN103174296B (en) * | 2013-03-14 | 2015-06-10 | 中国水利水电第十四工程局有限公司 | Steel bar binding space distance identification device |
| CN203561549U (en) * | 2013-10-28 | 2014-04-23 | 安徽省建筑工程质量监督检测站 | Shearing resistance testing clamp |
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