CN203616205U - Tension and compression testing device for reinforcement connection test piece - Google Patents
Tension and compression testing device for reinforcement connection test piece Download PDFInfo
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- CN203616205U CN203616205U CN201320873789.2U CN201320873789U CN203616205U CN 203616205 U CN203616205 U CN 203616205U CN 201320873789 U CN201320873789 U CN 201320873789U CN 203616205 U CN203616205 U CN 203616205U
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Abstract
The utility model relates to a tension and compression testing device and a tension and compression testing method for a reinforcement connection test piece. The device comprises upper and lower groups of fixture components and fixture pressurization components, wherein each fixture component comprises a self-anchored chuck arranged in a fixing frame for guiding and clamping the self-anchored chuck; each fixture pressurization component comprises a positioning plate and a position regulation plate; the positioning plates are fixedly arranged on the fixing frames in the fixture components, and are connected with the position regulation plates through studs; the position regulation plate in the upper fixture pressurization component is connected with the end part of an actuator; the position regulation plate in the lower fixture pressurization component is connected with a fixed base; a jack is arranged between each position regulation plate and the corresponding self-anchored chuck through a middle hole in the corresponding positioning plate, and is used for applying pressure to the corresponding self-anchored chuck. According to the device and the method, tension and pressure can be applied to the reinforcement connection test piece, requirements on tension and compression tests of reinforcement connection joints can be met, and a test requirement on the application of reciprocating tension and compression load to the test piece can also be met; moreover, the device is simple in structure and convenient to operate.
Description
Technical field
The utility model relates to the verifying attachment of reinforcing bar strength of joint, and specifically a kind of reinforcing bar connects the tension and compression testing device of test specimen.
Background technology
Rebar connecting technology is widely used in building construction process, and all needs butt junction quality to carry out quality inspection.Conventionally the quality inspection test unit of reinforcing bar connection test specimen has normal static cupping machine and electro-hydraulic servo static/dynamic universal testing machine.Normal static tension test machine grip holder by when test jaw body slide along the inclined-plane at the jaw back side, complete adding of test specimen held.Although normal static tension test machine grip holder is simple in structure, only can carry out unidirectional static tensile test to test specimen, can not meet the requirement of test specimen being carried out to tension and compression test.Electro-hydraulic servo static/dynamic universal testing machine adopts hydraulic chuck, by oil pump, chuck is pressurizeed, and can carry out unidirectional static tensile test to test specimen and also can carry out Compression and Expansion test to test specimen.Its chuck be divided into again machinery forced chuck and hydraulic pressure force folder first two.Although machinery forced chuck is simple in structure, retained part structure is special, and clamping complicated operation, needs testing crew to have higher technical merit.Hydraulic pressure forces chuck, and in order to make chuck clamping firmly, its structure is generally comparatively complicated.In order to meet the requirement of the test of carrying out the higher test specimen of intensity, need bulky chuck or higher oil pressure, to having relatively high expectations of equipment.
Utility model content
The problem that the utility model is intended to solve existing normal static cupping machine can only carry out to reinforcing bar tension test, can connect the test specimen tension and compression testing device that can also exert pressure to it that stretches to reinforcing bar and provide a kind of, make it can meet the requirement to steel bar connecting joints tensile test, can realize again test specimen is applied to reciprocal tension and compression loading test simultaneously; And its simple structure, easy to operate.
The technical scheme that the utility model solves described problem employing is:
A kind of reinforcing bar connects the tension and compression testing device of test specimen, comprise firm banking, actuator, clamp assembly, fixture pressure-applying unit, described clamp assembly and fixture pressure-applying unit comprise upper and lower two groups, clamp assembly comprises a self-anchored type chuck, and described self-anchored type chuck is placed in a fixed mount that it is led and is clamped; Fixture pressure-applying unit comprises a location-plate and a position adjustable board, described location-plate is fixed on the fixed mount in described clamp assembly, described position adjustable board is connected by studs with described location-plate, position adjustable board in upper fixture pressure-applying unit is connected with actuator end, position adjustable board in lower clamp pressure-applying unit is connected with firm banking, between position adjustable board and self-anchored type chuck, is provided with by the middle hole on location-plate the lifting jack that self-anchored type chuck is exerted pressure.
The utility model that adopts technique scheme, compared with prior art, its outstanding feature is:
Self-anchored type chuck is just under pressure before reinforcing bar connects test specimen tension, and test specimen is compressed, and in the time that test specimen is exerted pressure, self-anchored type chuck still keeps enough pressure jam-packed reinforcing bars, makes can not produce relative sliding between reinforcing bar and self-anchored type chuck and throws off; Can test the test specimen of different length by the position of adjusting actuator termination and position adjustable board, can be connected test specimen to different-diameter reinforcing bar by the pressure of adjustment self-anchored type chuck size and lifting jack and test; The requirement to steel bar connecting joints tensile test can be met, the needs that test specimen applied to the test of reciprocal tension and compression load can be realized again simultaneously; Solve the problem that normal static cupping machine can only carry out to reinforcing bar tension test, and its simple structure, easy to operate, testing crew technical merit is not had to excessive demand.
As preferably, the utility model further technical scheme is:
Described fixed mount comprises strengthening steel slab, fixing steel plate and floor, two described strengthening steel slabs, be welded on the location-plate in the described fixture pressure-applying unit between two described strengthening steel slabs and socket a frame body of harness cord composition of two described strengthening steel slabs, in described frame body, be provided with two tilting fixing steel plates, described fixing steel plate and described location-plate are welded and fixed, between described fixing steel plate and described strengthening steel slab, be welded with described floor, described self-anchored type chuck is placed between two described tilting fixing steel plates.
Described fixing steel plate both sides vertical edge is equipped with the locating stop piece of described self-anchored type chuck.
In middle hole on described location-plate, the positioning pipe that diameter is corresponding with hole aperture is housed, described positioning pipe lower end is welded with location pressurization cushion block, described location pressurization cushion block docks by concaveconvex structure with the described self-anchored type chuck of its below, and the described lifting jack that self-anchored type chuck is exerted pressure is placed in described positioning pipe and just to location pressurization cushion block.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment tension and compression testing device structural representation.
Fig. 2 is the utility model embodiment tension and compression trystate schematic diagram.
Fig. 3 is clamp assembly enlarged drawing in the present embodiment.
Fig. 4 is strengthening steel slab schematic diagram in the present embodiment.
Fig. 5 is position adjustable board schematic diagram in the present embodiment.
Fig. 6 is location-plate schematic diagram in the present embodiment.
Fig. 7 is location pressurization cushion block schematic diagram in the present embodiment.
Fig. 8 is self-anchored type chuck schematic diagram in the present embodiment.
In figure: actuator 1, upper clamp assembly 2, lower clamp assembly 3, upper fixture pressure-applying unit 4, lower clamp pressure-applying unit 5, firm banking 6, position adjustable board 7, studs 8, lifting jack 9, positioning pipe 10, location-plate 11, strengthening steel slab 12, harness cord 13, fixing steel plate 14, floor 15, location pressurization cushion block 16, self-anchored type chuck 17, reinforcing bar connects test specimen 18, middle hole 19, locating stop piece 20, projection 21, draw-in groove 22.
Embodiment
Below in conjunction with embodiment in detail the utility model is described in detail, object is only to understand better the utility model content.Therefore, the cited case does not limit protection domain of the present utility model.
Referring to Fig. 1, reinforcing bar described in the present embodiment connects the tension and compression testing device of test specimen, by actuator 1, upper clamp assembly 2, lower clamp assembly 3, upper fixture pressure-applying unit 4, lower clamp pressure-applying unit 5, firm banking 6 totally six parts form, actuator 1 adopts MTS243.43 type actuator.
Referring to Fig. 1, Fig. 2, upper clamp assembly 2 and lower clamp assembly 3 are same structure, all see Fig. 8 take self-anchored type chuck 17() make as basic engineering, self-anchored type chuck 17 is arranged on one by location-plate 11(Fig. 6), strengthening steel slab 12(is shown in Fig. 4), in the frame body that forms of harness cord 13, fixing steel plate 14, floor 15, the concrete structure of frame body is: welding fixing steel plate 14 in one end between two strengthening steel slabs 12, and the other end is connected by two harness cord 13 bolts; Two fixing steel plates 14 are in tilted layout, between fixing steel plate 14 and location-plate 11, be welded and fixed, between fixing steel plate 14 and strengthening steel slab 12, weld two floors 15, make thus to form space structure that mate with the frustum profile of self-anchored type chuck 17, that can self-anchored type chuck 17 be led and be clamped between two fixing steel plates 14,17 of self-anchored type chucks are placed in this guiding and grasping part structure.
For further improving the guide effect of fixing steel plate 14 to self-anchored type chuck 17, at fixing steel plate 14 both sides vertical edges, locating stop piece 20(is housed and sees Fig. 3).While preventing test specimen pressurized, movement in the horizontal direction causes test specimen unstable failure.
Still referring to Fig. 1, Fig. 2, upper fixture pressure-applying unit 4 and lower clamp pressure-applying unit 5 are also same structure, by position adjustable board, 7(is shown in Fig. 5), studs 8, location-plate 11 form, location-plate 11 is in fact also the parts of the frame body in composition clamp assembly, position adjustable board 7 is connected by four studs 8 with location-plate 11, and position adjustable board 7 can regulate by four studs 8 with the spacing of location-plate 11.Position adjustable board 7 in upper fixture pressure-applying unit 4 is connected with actuator 1 end by the studs 8 that connects position adjustable board 7, and actuator 1 is fixed firmly by upper fixture pressure-applying unit 4; Position adjustable board 7 in lower clamp pressure-applying unit 5 is connected with firm banking 6 by the studs 8 that connects position adjustable board 7.
Said structure, has guaranteed that test specimen is vertically subject to tension and compression, can guarantee that again self-anchored type chuck 17 is applied in a pressure time, still can firmly test specimen be fixed.
Referring to Fig. 2, while adopting above-mentioned tension and compression testing device to carry out the tension and compression test of reinforcing bar connection test specimen 18, first to assemble upper and lower two sleeve clamp assemblies and fixture pressure-applying unit, then positioning pipe 10 and location pressurization cushion block 16 are placed on to the appropriate location of self-anchored type chuck 17, and make positioning pipe 10 through the middle hole 19 on location-plate 11, then lifting jack 9 is put into positioning pipe 10; Position adjustable board 7 in upper fixture pressure-applying unit 4 is alignd with actuator 1 termination, then utilize studs 8 that position adjustable board 7 and actuator 1 are linked together; , the position adjustable board in lower clamp pressure-applying unit 57 is alignd with firm banking 6 meanwhile, then utilize studs 8 that position adjustable board 7 and firm banking 6 are linked together.Adjust the spacing of position adjustable board 7 and location-plate 11, make actuator 1 to correct position, the reinforcing bar of pending test is connected to test specimen 18 use self-anchored type chucks 17 to be clipped, by actuator 1, test specimen is applied to a less pulling force again, guarantee reinforcing bar fixation, lifting jack 9 is applied to suitable pressure, and guarantee that test specimen is in shape; Adjust the power of actuator 1 to null position; Move up reinforcing bar connection test specimen 18 is applied to pulling force by control actuator 1, carry out tension test, move down reinforcing bar connection test specimen 18 is exerted pressure by control actuator 1, carry out tension and compression loading test.
The above, be only the utility model preferred embodiment, not utility model done to any pro forma restriction.Any simple modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment, all belong to protection domain of the present utility model.
Claims (4)
1. the tension and compression testing device of a reinforcing bar connection test specimen, comprise firm banking, actuator, clamp assembly, fixture pressure-applying unit, it is characterized in that, described clamp assembly and fixture pressure-applying unit comprise upper and lower two groups, clamp assembly comprises a self-anchored type chuck, and described self-anchored type chuck is placed in a fixed mount that it is led and is clamped; Fixture pressure-applying unit comprises a location-plate and a position adjustable board, described location-plate is fixed on the fixed mount in described clamp assembly, described position adjustable board is connected by studs with described location-plate, position adjustable board in upper fixture pressure-applying unit is connected with actuator end, position adjustable board in lower clamp pressure-applying unit is connected with firm banking, between position adjustable board and self-anchored type chuck, is provided with by the middle hole on location-plate the lifting jack that self-anchored type chuck is exerted pressure.
2. reinforcing bar connects the tension and compression testing device of test specimen as claimed in claim 1, it is characterized in that, described fixed mount comprises strengthening steel slab, fixing steel plate and floor, two described strengthening steel slabs, be welded on the location-plate in the described fixture pressure-applying unit between two described strengthening steel slabs, and the harness cord that sockets two described strengthening steel slabs forms a frame body, in described frame body, be provided with two tilting fixing steel plates, described fixing steel plate and described location-plate are welded and fixed, between described fixing steel plate and described strengthening steel slab, be welded with described floor, described self-anchored type chuck is placed between two described tilting fixing steel plates.
3. reinforcing bar connects the tension and compression testing device of test specimen as claimed in claim 2, it is characterized in that, described fixing steel plate both sides vertical edge is equipped with the locating stop piece of described self-anchored type chuck.
4. reinforcing bar connects the tension and compression testing device of test specimen as claimed in claim 1, it is characterized in that, in middle hole on described location-plate, the positioning pipe that diameter is corresponding with hole aperture is housed, described positioning pipe lower end is welded with location pressurization cushion block, described location pressurization cushion block docks by concaveconvex structure with the described self-anchored type chuck of its below, and the described lifting jack that self-anchored type chuck is exerted pressure is placed in described positioning pipe and just to location pressurization cushion block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320873789.2U CN203616205U (en) | 2013-12-29 | 2013-12-29 | Tension and compression testing device for reinforcement connection test piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320873789.2U CN203616205U (en) | 2013-12-29 | 2013-12-29 | Tension and compression testing device for reinforcement connection test piece |
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| CN203616205U true CN203616205U (en) | 2014-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320873789.2U Withdrawn - After Issue CN203616205U (en) | 2013-12-29 | 2013-12-29 | Tension and compression testing device for reinforcement connection test piece |
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| CN (1) | CN203616205U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103698213A (en) * | 2013-12-29 | 2014-04-02 | 河北联合大学 | Tension and compression test device and method for steel bar connection test piece |
| CN112362465A (en) * | 2021-01-14 | 2021-02-12 | 南京研华智能科技有限公司 | Jaw device suitable for tensile testing machine |
-
2013
- 2013-12-29 CN CN201320873789.2U patent/CN203616205U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103698213A (en) * | 2013-12-29 | 2014-04-02 | 河北联合大学 | Tension and compression test device and method for steel bar connection test piece |
| CN112362465A (en) * | 2021-01-14 | 2021-02-12 | 南京研华智能科技有限公司 | Jaw device suitable for tensile testing machine |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140528 Effective date of abandoning: 20151014 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |