CN205246433U - Prevent slide fixing device of changing of relative positions of experimental test piece base - Google Patents
Prevent slide fixing device of changing of relative positions of experimental test piece base Download PDFInfo
- Publication number
- CN205246433U CN205246433U CN201521100472.0U CN201521100472U CN205246433U CN 205246433 U CN205246433 U CN 205246433U CN 201521100472 U CN201521100472 U CN 201521100472U CN 205246433 U CN205246433 U CN 205246433U
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- panel
- base
- screw rod
- fixed base
- test specimen
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Abstract
The utility model discloses a prevent slide fixing device of changing of relative positions of experimental test piece base, belong to fixing device, its structure is including fixed pedestal, the level prestretches the screw rod, vertical anchor screw rod, the adjustment tank, backing plate and nut, two are drawn together to the fixed station stationary ladle, the front panel of every fixed pedestal, the rear panel, all be provided with the adjustment tank on top panel and the lower panel, fixed pedestal prestretches the screw rod with experimental test piece base through the level and links to each other, the level prestretches the both ends of screw rod and passes the adjustment tank on front panel and the rear panel respectively, and through backing plate and nut fastening, vertical anchor screw rod from the top down passes the adjustment tank on top panel and the lower panel, vertical anchor screw rod upper end penetrates the backing plate, and through the nut fastening, the lower extreme stretches into the bottom plate to the laboratory, fix with the ground anchor eye that testing site is subaerial. The utility model has the characteristics of the anchor quantity of experimental test piece base has been increased through the prestressing technique to the commonality is better, reduces the manual work, can reduce the production cost of test piece etc.
Description
Technical field
The utility model relates to a kind of fixture, especially a kind ofly prevents from testing consolidating of the test specimen base slippage changing of the relative positionsDetermine device.
Background technology
In dull or the horizontal load test of low Zhou Fanfu, in the time that horizontal force is larger, tend to cause test specimen baseThere is a certain amount of horizontal sliding changing of the relative positions, make top test specimen produce global displacement. Adopt displacement when loading actuatorWhen controlled loading, the slippage changing of the relative positions meeting of base causes actuator to complete and to load action by correct design displacement,Thereby cause result of the test to occur larger error. At present, laboratory staff prevents above-mentioned base sliding phenomenonOccur, conventionally adopt two kinds of methods to solve.
One method is that temporary fixed bearing is set near test specimen base, and at the bottom of temporary fixed bearing and test specimenBetween seat, clog steel plate, girder steel, make temporary support hold out against test specimen base, reached and prevented that test specimen base from slidingMove the object of the changing of the relative positions. This mode of operation randomness is larger, and whole operating process is very required great effort.
Another kind method is directly test specimen base area to be strengthened, or it is abnormally-structured to make I shape etc., to reachIncrease the object of base vertical anchor bolt, thereby the antiskid that further improves test specimen base moves changing of the relative positions ability. ShouldAlthough mode has certain effect, often cause sample dimensions larger, the operations such as transport, lifting should not complete,And waste material.
At present, China is greatly developing steel reinforced concrete assembling shear wall building, different from cast-in-place structural,In fabricated shear wall building, have a large amount of levels and vertical abutment joint, the rigidity at this position and distortion often needDetermine by experimental study, but because the distortion of seam areas in the test of the type is less, therefore to examinationThe fixing requirement of test part base is very strict, and the firm banking way that adopts current laboratory routine is to expireFoot requirement of experiment. Obviously, design a kind of simple structure, test specimen base fixing device that applicability is strong, canGuarantee test data accurately, reduce manually, reduce test specimen manufacturing cost, there is great practical value, spyNot to have more Practical significance for the test test specimen of fabricated shear wall seam.
Utility model content
Technical assignment of the present utility model is to provide one to prevent from testing test specimen for above-mentioned deficiency of the prior artThe fixture of the base slippage changing of the relative positions, this is a kind of prevents that the fixture of testing the test specimen base slippage changing of the relative positions has logicalCrossing prestressing technique has increased the anchoring quantity of test test specimen base, and versatility is better, and simple structure, subtractsLess manually, can reduce the feature of the manufacturing cost of test specimen.
The utility model solves the technical scheme that its technical problem adopts: it comprises that fixed base, level are pre-Draw screw rod, vertical anchorage screw, regulating tank, backing plate and nut, described fixed base comprises two, and frontRear setting, former and later two fixed bases are connected by horizontal prestretching screw rod, and each fixed base is respectively by aboveThe square structure of plate, rear board, top panel and lower panel composition, the front panel of each fixed base, rear board,On top panel and lower panel, be provided with regulating tank, and corresponding setting before and after regulating tank on front panel and rear board,Upper and lower corresponding setting of regulating tank on top panel and lower panel, and regulating tank on front panel and rear board is with aboveRegulating tank on plate and lower panel is crisscross arranged, and two fixed bases are separately positioned on the front and back of test test specimen baseTwo ends, fixed base is connected by horizontal prestretching screw rod with test test specimen base, described horizontal prestretching screw rodThe regulating tank on front panel and the rear board of fixed base is passed respectively at two ends, and by backing plate and fastening nuts,Described vertical anchorage screw is from top to bottom through the regulating tank on top panel and the lower panel of fixed base, verticalAnchorage screw upper end penetrates backing plate, and by fastening nuts, lower end stretches to laboratory's base plate, with testing groundGround anchor hole is fixed.
The horizontal prestretching screw rod penetrating between two described fixed bases comprises three, along fixed base length sideTo even setting.
On each described fixed base, be respectively arranged with two vertical anchorage screws.
Each described fixed base inside is provided with ribs.
Described ribs is intersecting parallels ribs.
A kind of fixture that prevents from testing the test specimen base slippage changing of the relative positions of the present utility model compared to the prior art,There is following outstanding beneficial effect: utilize the prestressing technique can be effectively by tight to fixed base and test specimen baseCouple together, utilize the anti-shearing changing of the relative positions slippage ability of the vertical anchor bolt increase test specimen base of fixed base,The accuracy that in test, actuator loads and the accuracy of test data are ensured. This device is simple and practical, costCheap, reusable and for convenience detach, there is higher versatility.
Brief description of the drawings
Accompanying drawing 1 is a kind of structural representation that prevents the fixture of testing the test specimen base slippage changing of the relative positions;
Description of reference numerals: 1 fixed base, 11, front panel, 12 rear boards, 13 top panels, 14 lower panels,2 horizontal prestretching screw rods, 3 vertical anchorage screws, 4 backing plates, 5 nuts, 6 regulating tanks, 7 ribbed stiffeners.
Detailed description of the invention
With reference to Figure of description 1 to a kind of fixing dress that prevents from testing the test specimen base slippage changing of the relative positions of the present utility modelPut and be described in detail below.
A kind of fixture that prevents from testing the test specimen base slippage changing of the relative positions of the present utility model, its structure comprises fixingPedestal 1, horizontal prestretching screw rod 2, vertical anchorage screw 3, regulating tank 6, backing plate 4 and nut 5, describedFixed base 1 comprises two, and front and back setting, and former and later two fixed bases 1 are by horizontal prestretching screw rod 2 phasesConnect, each fixed base 1 is respectively by front panel 11, rear board 12, top panel 13 and lower panel 14 and formsSquare structure, front panel 11, rear board 12, top panel 13 and the lower panel 14 of each fixed base 1On be provided with regulating tank 6, and regulating tank on front panel 11 and rear board 12 6 front and back are corresponding arranges, onRegulating tank on panel 13 and lower panel 14 is corresponding setting Shang Xia 6, and on front panel 11 and rear board 12Regulating tank 6 is crisscross arranged with the regulating tank 6 on top panel 13 and lower panel 14, prevents from penetrating fixed base 1Interior horizontal prestretching screw rod 2 and vertical anchorage screw 3 interfere, and two fixed bases 1 are separately positioned on examinationThe rear and front end of test part base, fixed base 1 is connected by horizontal prestretching screw rod 2 with test test specimen base,The two ends of described horizontal prestretching screw rod 2 are respectively through on the front panel 11 of fixed base 1 and rear board 12Regulating tank 6, and fastening by backing plate 4 and nut 5, by tightening the nut 5 of horizontal prestretching screw rod 2 ends,Fixed base 1 is produced to compressive pre-stress and is closely connected, described vertical anchorage screw 3 with test test specimen basePass from top to bottom the regulating tank 6 on top panel 13 and the lower panel 14 of fixed base 1, vertical anchorage screw 3Upper end penetrates backing plate 4, and fastening by nut 5, and lower end stretches to laboratory's base plate, with ground, testing groundOn anchor hole be fixed.
The horizontal prestretching screw rod 2 penetrating between two described fixed bases 1 comprises three, along fixed base 1Length direction evenly arranges.
On each described fixed base 1, be respectively arranged with two vertical anchorage screws 3.
Each described fixed base 1 inside is provided with ribs 7. Increase the intensity of fixed base 1.
Described ribs 7 is intersecting parallels ribs.
Horizontal prestretching screw rod 2 penetrates the regulating tank 6 on fixed base front panel 11 and rear board 12, allows waterFlat prestretching screw rod 2 carries out position adjustments in regulating tank 6.
Vertical anchorage screw 3 penetrates the regulating tank 6 on fixed base top panel 13 and lower panel 14, allows perpendicularIn regulating tank 6, carry out position adjustments to anchorage screw 3.
Vertical anchorage screw 3 penetrates the regulating tank 6 of fixed base 1, and vertical anchorage screw 3 upper ends screw in nut 5,The vertical anchorage screw 3 ground anchor holes in insertion testing ground, lower end are fixed.
Utilize a small amount of vertical anchorage screw first test test specimen to be fixed on laboratory's base plate, test test specimen baseReserving hole is answered at middle part in manufacturing process. Fixed base 1 is placed on to test test specimen base two ends, first wearsEnter the horizontal prestretching screw rod 2 in centre position, this horizontal prestretching screw rod 2 is from fixed base 1 and test test specimen baseIn preformed hole in pass, tighten by backing plate 4 and nut 5, make fixed base 1 and test test specimen base itBetween produce compressive pre-stress, keep combining closely; In rundown process, can by fixed base front panel 11 and afterRegulating tank 6 on panel 12 is suitably adjusted the relative position between horizontal prestretching screw rod 2 and fixed base 1. WithAfter, in the front panel 11 of fixed base 1 and the regulating tank 6 of rear board 12 both sides, penetrate respectively horizontal prestretchingScrew rod 2, and successively tighten, and keep fixed base 1 mutually vertical with test test specimen base. Finally, will erectPenetrate fixed base 1 to anchorage screw 3, and stretch to laboratory's base plate bottom, utilize backing plate 4 and nut 5Vertical anchorage screw 3 is tightened, in this process, because fixed base top panel 13 and lower panel 14 are all establishedThere is regulating tank 6, can ensure that vertical anchorage screw 3 penetrates and in process, has enough flexibility ratios, fixed base 1After fastening by vertical anchorage screw 3, fixed base 1, due to the existence of precompression, will be total to test test specimen baseWith work, the vertical anchorage screw 3 on fixed base will provide sufficient anti-shearing slippage for test test specimen baseBearing capacity, to prevent the testing test specimen base generation slippage changing of the relative positions, thereby ensures the accuracy of whole process of the test.
Cited embodiment, only for understanding the utility model, is not the utility model is retouched aboveThe restriction of the technical scheme of stating, about the those of ordinary skill in field, at the base of technical scheme described in claimOn plinth, can also make multiple variation or distortion, it is new that all variations that are equal to or distortion all should be encompassed in this practicalityWithin the claim protection domain of type. The utility model does not describe part in detail, is those skilled in the art of the present techniqueKnown technology.
Claims (5)
1. a fixture that prevents from testing the test specimen base slippage changing of the relative positions, is characterized in that: comprise fixed base,Horizontal prestretching screw rod, vertical anchorage screw, regulating tank, backing plate and nut, described fixed base comprises two,And front and back arrange, former and later two fixed bases by horizontal prestretching screw rod be connected, each fixed base be respectively byThe square structure of front panel, rear board, top panel and lower panel composition, the front panel of each fixed base, afterOn panel, top panel and lower panel, be provided with regulating tank, and right before and after regulating tank on front panel and rear boardUpper and lower corresponding setting of regulating tank on top panel and lower panel, and adjusting on front panel and rear board should be setRegulating tank on groove and top panel and lower panel is crisscross arranged, at the bottom of two fixed bases are separately positioned on test test specimenThe rear and front end of seat, fixed base is connected by horizontal prestretching screw rod with test test specimen base, and described level is pre-Draw the two ends of screw rod respectively through the regulating tank on front panel and the rear board of fixed base, and by backing plate and spiral shellFemale fastening, described vertical anchorage screw is from top to bottom through the adjusting on top panel and the lower panel of fixed baseGroove, vertical anchorage screw upper end penetrates backing plate, and by fastening nuts, lower end stretches to laboratory's base plate, withThe ground anchor hole in testing ground is fixed.
2. a kind of fixture that prevents from testing the test specimen base slippage changing of the relative positions according to claim 1, its spyLevy and be: the horizontal prestretching screw rod penetrating between two described fixed bases comprises three, along fixed base lengthDirection evenly arranges.
3. a kind of fixture that prevents from testing the test specimen base slippage changing of the relative positions according to claim 1, its spyLevy and be: on each described fixed base, be respectively arranged with two vertical anchorage screws.
4. a kind of fixture that prevents from testing the test specimen base slippage changing of the relative positions according to claim 1, its spyLevy and be: each described fixed base inside is provided with ribs.
5. a kind of fixture that prevents from testing the test specimen base slippage changing of the relative positions according to claim 4, its spyLevy and be: described ribs is intersecting parallels ribs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521100472.0U CN205246433U (en) | 2015-12-24 | 2015-12-24 | Prevent slide fixing device of changing of relative positions of experimental test piece base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521100472.0U CN205246433U (en) | 2015-12-24 | 2015-12-24 | Prevent slide fixing device of changing of relative positions of experimental test piece base |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205246433U true CN205246433U (en) | 2016-05-18 |
Family
ID=55945506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521100472.0U Withdrawn - After Issue CN205246433U (en) | 2015-12-24 | 2015-12-24 | Prevent slide fixing device of changing of relative positions of experimental test piece base |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205246433U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424468A (en) * | 2015-12-24 | 2016-03-23 | 山东省建筑科学研究院 | Fixing device for preventing sliding displacement of test sample pedestal |
-
2015
- 2015-12-24 CN CN201521100472.0U patent/CN205246433U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424468A (en) * | 2015-12-24 | 2016-03-23 | 山东省建筑科学研究院 | Fixing device for preventing sliding displacement of test sample pedestal |
| CN105424468B (en) * | 2015-12-24 | 2017-09-29 | 山东省建筑科学研究院 | It is a kind of to prevent from testing the fixing device that test piece base slides the changing of the relative positions |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160518 Effective date of abandoning: 20170929 |
|
| AV01 | Patent right actively abandoned |