CN105424468A - Fixing device for preventing sliding displacement of test sample pedestal - Google Patents
Fixing device for preventing sliding displacement of test sample pedestal Download PDFInfo
- Publication number
- CN105424468A CN105424468A CN201510992814.2A CN201510992814A CN105424468A CN 105424468 A CN105424468 A CN 105424468A CN 201510992814 A CN201510992814 A CN 201510992814A CN 105424468 A CN105424468 A CN 105424468A
- Authority
- CN
- China
- Prior art keywords
- panel
- screw rod
- base
- fixed base
- regulating tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a fixing device for preventing sliding displacement of a test sample pedestal and belongs to fixing devices. The fixing device includes two fixing bench bases, a horizontal pre-tensioning screw rod, a vertical anchoring screw rod, adjustment grooves, a plurality of gaskets and a plurality of nuts. A front surface plate, a back surface plate, an upper surface plate and a lower surface plate of each fixing bench base are all provided with the adjustment grooves. The fixing bench bases are connected to the test sample pedestal through the horizontal pre-tensioning screw rod. Two ends of the horizontal pre-tensioning screw rod respectively pass through the adjustment grooves on the front surface plate and the back surface plate and are fastened through the gaskets and nuts. The vertical anchoring screw rod passes through the adjustment grooves on the upper surface plate and the lower surface plate from top to bottom, wherein the upper end of the vertical anchoring screw rod is stretched into the gas through the gasket and is fastened through the nut, and the lower end of the vertical anchoring screw rod is stretched into ground of a laboratory and is fixed to a ground anchor hole on the ground in the laboratory. By means of pre-stressing technology, anchor number of the test sample pedestal is increased. The device is good in university, reduces manual work and reduces production cost of a test sample.
Description
Technical field
The present invention relates to a kind of stationary installation, especially a kind of stationary installation preventing the test test piece base slippage changing of the relative positions.
Background technology
In dullness or horizontal low cyclic loading test, when horizontal force is larger, often cause test piece base that a certain amount of horizontal sliding changing of the relative positions occurs, make top test specimen produce global displacement.When loading actuator and adopting Bit andits control to load, the slippage changing of the relative positions of base can cause actuator cannot complete loading action by correct design displacement, thus causes test findings to occur comparatively big error.At present, laboratory staff is the generation preventing above-mentioned base sliding phenomenon, usually adopts two kinds of methods to solve.
One method is near test piece base, arrange temporary fixed bearing, and clogs steel plate, girder steel between temporary fixed bearing and test piece base, makes temporary support hold out against test piece base, has reached the object preventing the test piece base generation slippage changing of the relative positions.This mode of operation randomness is comparatively large, and whole operating process is very required great effort.
Another kind method is that directly to strengthen test piece base area, or make I shape etc. abnormally-structured, to reach the object increasing the vertical anchor bolt of base, thus improves the resistant slide changing of the relative positions ability of test piece base further.Although which has certain effect, often cause sample dimensions comparatively large, the operation such as transport, lifting should not complete, and wastes material.
At present, China is greatly developing steel reinforced concrete assembling shear wall building, different from cast-in-place structural, a large amount of levels and vertical abutment joint is there is in fabricated shear wall building, rigidity and the distortion at this position often need to be determined by experimental study, but due in the test of the type the distortion of seam areas less, therefore very strict to the requirement that test test piece base is fixing, adopt the firm banking way of current test room routine to meet requirement of experiment.Obviously, design a kind of simple structure, test piece base stationary installation that applicability is strong, can warranty test data accurate, reduce artificial, reduce test specimen manufacturing cost, have great practical value, the test test specimen particularly for fabricated shear wall seam has more Practical significance.
Summary of the invention
Technical assignment of the present invention provides a kind of stationary installation preventing from testing the test piece base slippage changing of the relative positions for above-mentioned deficiency of the prior art, this a kind of stationary installation testing the test piece base slippage changing of the relative positions that prevents has the anchoring quantity being added test test piece base by prestressing technique, and versatility is better, simple structure, reduce artificial, the feature of the manufacturing cost of test specimen can be reduced.
The technical solution adopted for the present invention to solve the technical problems is: it comprises fixed base, horizontal prestretching screw rod, vertical anchorage screw, regulating tank, backing plate and nut, described fixed base comprises two, and front and back are arranged, former and later two fixed bases are connected by horizontal prestretching screw rod, each fixed base is respectively by front panel, rear panel, the square structure of top panel and lower panel composition, the front panel of each fixed base, rear panel, top panel and lower panel are provided with regulating tank, and correspondingly before and after regulating tank on front panel and rear panel to arrange, regulating tank on top panel and lower panel is corresponding up and down to be arranged, and the regulating tank on regulating tank on front panel and rear panel and top panel and lower panel is crisscross arranged, two fixed bases are separately positioned on the rear and front end of test test piece base, fixed base is connected by horizontal prestretching screw rod with test test piece base, the two ends of described horizontal prestretching screw rod are each passed through the regulating tank on the front panel of fixed base and rear panel, and by backing plate and fastening nuts, described vertical anchorage screw is from top to bottom through the regulating tank on the top panel of fixed base and lower panel, vertical anchorage screw upper end penetrates backing plate, and pass through fastening nuts, lower end stretches to testing laboratory's base plate, be fixed with the ground anchor hole in testing ground.
The horizontal prestretching screw rod penetrated between two described fixed bases comprises three, evenly arranges along fixed base length direction.
Each described fixed base is respectively arranged with two vertical anchorage screws.
Each described fixed base inside is provided with stiffening rib.
Described stiffening rib is intersecting parallels stiffening rib.
A kind of stationary installation preventing from testing the test piece base slippage changing of the relative positions of the present invention compared to the prior art, there is following outstanding beneficial effect: utilize prestressing technique can effectively by fixed base and test piece base compact siro spinning technology, utilize the vertical anchor bolt of fixed base to increase the anti-shearing changing of the relative positions slippage ability of test piece base, ensure that the accuracy of actuator loading and the accuracy of test figure in test.This device is simple and practical, cheap, reusable and for convenience detach, has higher versatility.
Accompanying drawing explanation
Accompanying drawing 1 is a kind of structural representation preventing the stationary installation testing the test piece base slippage changing of the relative positions;
Description of reference numerals: 1 fixed base, 11, front panel, 12 rear panels, 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.
Embodiment
With reference to Figure of description 1, a kind of stationary installation testing the test piece base slippage changing of the relative positions that prevents of the present invention is described in detail below.
A kind of stationary installation preventing the test test piece base slippage changing of the relative positions of the present invention, its structure comprises fixed base 1, horizontal prestretching screw rod 2, vertical anchorage screw 3, regulating tank 6, backing plate 4 and nut 5, described fixed base 1 comprises two, and front and back are arranged, former and later two fixed bases 1 are connected by horizontal prestretching screw rod 2, each fixed base 1 is respectively by front panel 11, rear panel 12, the square structure that top panel 13 and lower panel 14 form, the front panel 11 of each fixed base 1, rear panel 12, top panel 13 and lower panel 14 are provided with regulating tank 6, and correspondingly before and after regulating tank 6 on front panel 11 and rear panel 12 to arrange, regulating tank about 6 correspondence on top panel 13 and lower panel 14 is arranged, and the regulating tank 6 on front panel 11 and rear panel 12 is crisscross arranged with the regulating tank 6 on top panel 13 and lower panel 14, prevent from penetrating horizontal prestretching screw rod 2 in fixed base 1 and vertical anchorage screw 3 interferes, two fixed bases 1 are separately positioned on the rear and front end of test test piece base, fixed base 1 is connected by horizontal prestretching screw rod 2 with test test piece base, the two ends of described horizontal prestretching screw rod 2 are each passed through the regulating tank 6 on the front panel 11 of fixed base 1 and rear panel 12, and by backing plate 4 and nut 5 fastening, by tightening the nut 5 of horizontal prestretching screw rod 2 end, fixed base 1 is produced compressive pre-stress with test test piece base and is closely connected, described vertical anchorage screw 3 is from top to bottom through the regulating tank 6 on the top panel 13 of fixed base 1 and lower panel 14, vertical anchorage screw 3 upper end penetrates backing plate 4, and it is fastening by nut 5, lower end stretches to testing laboratory's base plate, be fixed with the ground anchor hole in testing ground.
The horizontal prestretching screw rod 2 penetrated between two described fixed bases 1 comprises three, evenly arranges along fixed base 1 length direction.
Each described fixed base 1 is respectively arranged with two vertical anchorage screws 3.
Each described fixed base 1 inside is provided with stiffening rib 7.Add the intensity of fixed base 1.
Described stiffening rib 7 is intersecting parallels stiffening rib.
Horizontal prestretching screw rod 2 penetrates the regulating tank 6 on fixed base front panel 11 and rear panel 12, and tolerable injury level 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 vertical anchorage screw 3 to carry out position adjustments in regulating tank 6.
Vertical anchorage screw 3 penetrates the regulating tank 6 of fixed base 1, and vertical anchorage screw 3 upper end screws in nut 5, and the ground anchor hole in vertical insertion testing ground, anchorage screw 3 lower end is fixed.
Utilize a small amount of vertical anchorage screw to be first fixed on testing laboratory's base plate by test test specimen, in the middle part of test test piece base, in manufacturing process, answer reserving hole.Fixed base 1 is placed on test test piece base two ends, first the horizontal prestretching screw rod 2 in centre position is penetrated, this horizontal prestretching screw rod 2 passes from the preformed hole fixed base 1 and test test piece base, tightened by backing plate 4 and nut 5, make to produce compressive pre-stress between fixed base 1 and test test piece base, keep combining closely; In rundown process, by the relative position of the regulating tank 6 on fixed base front panel 11 and rear panel 12 suitably between the horizontal prestretching screw rod 2 of adjustment and fixed base 1.Subsequently, in the front panel 11 of fixed base 1 and the regulating tank 6 of rear panel 12 both sides, penetrate horizontal prestretching screw rod 2 respectively, and successively tighten, and keep fixed base 1 mutually vertical with test test piece base.Finally, vertical anchorage screw 3 is penetrated fixed base 1, and stretch to bottom testing laboratory's base plate, backing plate 4 and nut 5 is utilized to be tightened by vertical anchorage screw 3, in this process, because fixed base top panel 13 and lower panel 14 are equipped with regulating tank 6, can ensure that vertical anchorage screw 3 penetrates in process and has enough flexibility ratios, after fixed base 1 is fastening by vertical anchorage screw 3, fixed base 1 is due to the existence of precompression, will with test test piece base co-operation, vertical anchorage screw 3 on fixed base provides sufficient anti-shearing slippage bearing capacity by for test test piece base, to prevent the test test piece base generation slippage changing of the relative positions, thus ensure the accuracy of whole process of the test.
Embodiment cited is above only for understanding the present invention's; it is not the restriction to technical scheme described in the invention; the those of ordinary skill of related fields; on the basis of technical scheme described in claim; can also make multiple change or distortion, all equivalent changes or distortion all should be encompassed within claims of the present invention.The present invention does not describe part in detail, is the known technology of those skilled in the art of the present technique.
Claims (5)
1. one kind prevents the stationary installation testing the test piece base slippage changing of the relative positions, it 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 are arranged, former and later two fixed bases are connected by horizontal prestretching screw rod, each fixed base is respectively by front panel, rear panel, the square structure of top panel and lower panel composition, the front panel of each fixed base, rear panel, top panel and lower panel are provided with regulating tank, and correspondingly before and after regulating tank on front panel and rear panel to arrange, regulating tank on top panel and lower panel is corresponding up and down to be arranged, and the regulating tank on regulating tank on front panel and rear panel and top panel and lower panel is crisscross arranged, two fixed bases are separately positioned on the rear and front end of test test piece base, fixed base is connected by horizontal prestretching screw rod with test test piece base, the two ends of described horizontal prestretching screw rod are each passed through the regulating tank on the front panel of fixed base and rear panel, and by backing plate and fastening nuts, described vertical anchorage screw is from top to bottom through the regulating tank on the top panel of fixed base and lower panel, vertical anchorage screw upper end penetrates backing plate, and pass through fastening nuts, lower end stretches to testing laboratory's base plate, be fixed with the ground anchor hole in testing ground.
2. a kind of stationary installation preventing the test test piece base slippage changing of the relative positions according to claim 1, is characterized in that: the horizontal prestretching screw rod penetrated between two described fixed bases comprises three, evenly arranges along fixed base length direction.
3. a kind of stationary installation preventing the test test piece base slippage changing of the relative positions according to claim 1, is characterized in that: each described fixed base is respectively arranged with two vertical anchorage screws.
4. a kind of stationary installation preventing the test test piece base slippage changing of the relative positions according to claim 1, is characterized in that: each described fixed base inside is provided with stiffening rib.
5. a kind of stationary installation preventing the test test piece base slippage changing of the relative positions according to claim 4, is characterized in that: described stiffening rib is intersecting parallels stiffening rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510992814.2A CN105424468B (en) | 2015-12-24 | 2015-12-24 | It is a kind of to prevent from testing the fixing device that test piece base slides the changing of the relative positions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510992814.2A CN105424468B (en) | 2015-12-24 | 2015-12-24 | It is a kind of to prevent from testing the fixing device that test piece base slides the changing of the relative positions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105424468A true CN105424468A (en) | 2016-03-23 |
| CN105424468B CN105424468B (en) | 2017-09-29 |
Family
ID=55502821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510992814.2A Active CN105424468B (en) | 2015-12-24 | 2015-12-24 | It is a kind of to prevent from testing the fixing device that test piece base slides the changing of the relative positions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105424468B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5567867A (en) * | 1995-08-04 | 1996-10-22 | Nazar; Ladislao M. | Drop weight type impact testing machine |
| CN102809508A (en) * | 2012-07-20 | 2012-12-05 | 上海交通大学 | Load positioning device for structural test |
| CN103196761A (en) * | 2013-04-01 | 2013-07-10 | 北京工业大学 | Repetitive loading testing apparatus and making method of epsilon-shaped test specimen |
| CN205246433U (en) * | 2015-12-24 | 2016-05-18 | 山东省建筑科学研究院 | Prevent slide fixing device of changing of relative positions of experimental test piece base |
-
2015
- 2015-12-24 CN CN201510992814.2A patent/CN105424468B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5567867A (en) * | 1995-08-04 | 1996-10-22 | Nazar; Ladislao M. | Drop weight type impact testing machine |
| CN102809508A (en) * | 2012-07-20 | 2012-12-05 | 上海交通大学 | Load positioning device for structural test |
| CN103196761A (en) * | 2013-04-01 | 2013-07-10 | 北京工业大学 | Repetitive loading testing apparatus and making method of epsilon-shaped test specimen |
| CN205246433U (en) * | 2015-12-24 | 2016-05-18 | 山东省建筑科学研究院 | Prevent slide fixing device of changing of relative positions of experimental test piece base |
Non-Patent Citations (4)
| Title |
|---|
| SOUDKI K A ET AL.: "《Horizontal connections for precast concrete shear wall panels under cyclic shear loading》", 《PCI JOURNAL》 * |
| 刘家彬 等.: "《装配式混凝土剪力墙水平拼缝U型闭合筋连接抗震性能试验研究》", 《东南大学学报》 * |
| 方小丹 等.: "《钢管高强混凝土剪力墙压弯性能试验研究》", 《建筑结构学报》 * |
| 肖全东 等.: "《装配式混凝土双板剪力墙低周反复荷载试验》", 《东南大学学报》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105424468B (en) | 2017-09-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Blomgren et al. | Full-scale shake table testing of cross-laminated timber rocking shear walls with replaceable components | |
| CN108801764B (en) | Multifunctional support capable of transmitting horizontal and multipoint local vertical loads and implementation method | |
| CN103207121B (en) | The force self-balanced charger of a kind of different column section node constant shaft | |
| CN103398908A (en) | Steel-concrete composite column anti-seismic anti-torsion test loading device and manufacturing method thereof | |
| CN105277444A (en) | Full-mechanical-type pile model test device and test method based on multidirectional loading | |
| CN206593955U (en) | A kind of axially loaded supplementary structure of pseudo-static experimental | |
| CN108507765A (en) | A kind of universal reaction frame for loading and its assembly method | |
| US20110094088A1 (en) | Solar canopy construction method | |
| Deshmukh et al. | Analysis and design of G+ 19 storied building using Staad-Pro | |
| CN104878786B (en) | Tiltedly orthogonal is for group's Pile-soil-structure Interaction experimental model | |
| Mariyam | Wind Analysis over Multistorey Building Having Flat Slab-Shear Wall Interaction: A Review | |
| CN208870231U (en) | Assembly concrete shear wall with dry type connector | |
| CN205246433U (en) | Prevent slide fixing device of changing of relative positions of experimental test piece base | |
| CN105424468A (en) | Fixing device for preventing sliding displacement of test sample pedestal | |
| CN204370464U (en) | Foundation bolt positioning device | |
| CN204731102U (en) | Multi-functional indoor structure charger | |
| CN209722744U (en) | A kind of Bracing Systems for steel box girder assembling | |
| CN104792484A (en) | Superposed concrete balancing weight structure for seismic test and construction method of superposed concrete balancing weight structure | |
| Sankhla et al. | A comparative study on the effect of infill walls on RCC frame structures | |
| CN202416339U (en) | Fixed base for tower crane | |
| CN106638650B (en) | Fabricated concrete foundation structure | |
| CN208772334U (en) | A kind of cement beam rectangular ribs bending device | |
| CN209760139U (en) | All-steel wharf structure | |
| CN207408245U (en) | A kind of pilot system for testing tunnel initial stage bolt-spary supports load-carrying properties | |
| CN203867063U (en) | Assembled-type room beam structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200811 Address after: 250031 Shandong Province Flyover District of Ji'nan City Road 29. Patentee after: Shandong Academy of Building Science Co.,Ltd. Address before: 250031 Shandong Province Flyover District of Ji'nan City Road 29. Patentee before: SHANDONG PROVINCIAL ACADEMY OF BUILDING RESEARCH |