CN101482467B - Specimen pre-loading multifunctional clamper group - Google Patents
Specimen pre-loading multifunctional clamper group Download PDFInfo
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- CN101482467B CN101482467B CN2009100606824A CN200910060682A CN101482467B CN 101482467 B CN101482467 B CN 101482467B CN 2009100606824 A CN2009100606824 A CN 2009100606824A CN 200910060682 A CN200910060682 A CN 200910060682A CN 101482467 B CN101482467 B CN 101482467B
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- prestrain
- anchor clamps
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Abstract
The invention relates to a test piece pre-loading multifunctional fixture group, which consists of a rigid pre-loading fixture and/or a flexible pre-loading fixture; In the rigid pre-loading fixture, a first main pull rod is connected to two supporting pier type clamping plates; In the flexible pre-loading fixture, a second main pull rod is connected to two outer clamping plates; two inner clamping platesare disposed between the two outer clamping plates; and a secondary pull rod, a spring and/or a damper are installed between the outer clamping plate and the inner clamping plate. Another technical scheme is composed by removing the secondary pull rod. The third technical scheme is composed by removing the secondary pull rod and the inner clamping plates. Since the fixture group provided in the invention comprises not only rigid pre-loading fixture, but also flexible pre-loading fixture, when testing, the fixture can be pre-loaded flexibly and/or rigidly in three directions to the square or hexahedron test piece according to needs to form different strained conditions of the test piece, thereby, the mechanical properties loading test of test piece under double axes and three axes can be realized on a single shaft dynamic/static force loading equipment.
Description
Technical field
The present invention relates in a kind of civil engineering work building materials be carried out the improvement of the anchor clamps of mechanical test, particularly a kind of specimen pre-loading multifunctional clamper group.
Background technology
In field of civil engineering, the power static(al) load test of building materials such as concrete, rock has comprehensive progress and development, utilize servo-type single shaft, three sound power load test equipment can carry out conventional material mechanical performance test, for engineering construction provides effective detection means.But in existing experimental technique, also do not have a kind of test method can the true force-bearing situation of simulation material under complex stress condition, such as periphery material to damping energy-absorbing function etc. in the effect of contraction of core material, the power loading procedure; In addition, how to carry out the material sound power performance test under the lasting for a long time loading effect economically, also be among the exploration at present, the test unit and the test method that meet material actual loading situation become the guardian technique problem.Therefore, reinforcement can the simulation material real bearing state and can be continued the development and an emphasis that is developed to for material mechanical performance research of unit clamp that test specimen is loaded for a long time, especially can be under the twin shaft of realization material on the single shaft sound power loading equipemtn and three complicated applied force states the anchor clamps of the load test of mechanical property.
Summary of the invention
Technical matters to be solved by this invention is that a kind of specimen pre-loading multifunctional clamper group that can simulate real bearing state will be provided, it can be under the twin shaft of realizing material on the single shaft sound power loading equipemtn and three complicated applied force states the load test of mechanical property.
In order to solve the problems of the technologies described above, technical scheme of the present invention is: a kind of specimen pre-loading multifunctional clamper group, it is made up of rigidity prestrain anchor clamps and/or flexible prestrain anchor clamps, in the rigidity prestrain anchor clamps, first main tie connects two buttress type clamping plate, and in the flexible prestrain anchor clamps, second main tie connects two external splints, two inner splints are located between two external splints, and time pull bar, spring and/or damper are installed between external splint and the inner splint.
Another kind of technical scheme of the present invention is: a kind of specimen pre-loading multifunctional clamper group, it is made up of rigidity prestrain anchor clamps and/or flexible prestrain anchor clamps, in the rigidity prestrain anchor clamps, first main tie connects two buttress type clamping plate, in the flexible prestrain anchor clamps, second main tie connects two external splints, and two inner splints are located between two external splints, and spring and/or damper are installed between external splint and the inner splint.
The third technical scheme of the present invention is: a kind of specimen pre-loading multifunctional clamper group, it is made up of rigidity prestrain anchor clamps and/or flexible prestrain anchor clamps, in the rigidity prestrain anchor clamps, first main tie connects two buttress type clamping plate, in the flexible prestrain anchor clamps, second main tie connects two external splints, and two external splint inboards respectively are equipped with spring and/or damper.
Specimen pre-loading multifunctional clamper group provided by the invention, owing to both comprised rigidity prestrain anchor clamps, comprise flexible prestrain anchor clamps again, spring in the flexible prestrain anchor clamps can be simulated the elastic restraint effect of periphery material, damper can simulation material the damper restriction effect, the difference that inferior pull bar sockets fastening degree can be adjusted the mechanics parameter of spring and damper, can realize the flexible loading effect of material by various combination, during test, on three directions of square hexahedron test specimen, can install one arbitrarily as required, or two, or three flexibilities (rigidity) prestrain anchor clamps, or with flexibility and rigidity prestrain anchor clamps mixing use, it is unidirectional that test specimen is formed, two-way, three-dimensional flexibility (rigidity) stress, or it is unidirectional that test specimen is formed, two-way, three-dimensional is flexible mixes stress with rigidity, thus under the twin shaft of having realized test specimen on the single shaft sound power loading equipemtn and three complicated applied force states the load test of mechanical property.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of first kind of embodiment of the present invention;
Fig. 2 is the structural representation of another embodiment of the present invention;
Fig. 3 is the structural representation of the third embodiment of the present invention.
Embodiment
A kind of specimen pre-loading multifunctional clamper group as shown in Figure 1, it is made up of rigidity prestrain anchor clamps 1 and/or flexible prestrain anchor clamps 2, in the rigidity prestrain anchor clamps 1, first main tie 3 connects two buttress type clamping plate 4, in the flexible prestrain anchor clamps 2, second main tie 3 ' 5, two inner splints 6 of two external splints of connection are located between two external splints 5, and time pull bar 7, spring 8 and/or damper 9 are installed between external splint 5 and the inner splint 6.During test, if flexible prestrain anchor clamps 2 will be installed on the above-below direction of test specimen 10, adjust earlier time pull bar 7 with spring 8 and damper 9 parameter adjustments to the design load size, then an external splint 5 is placed on the base of sound power loading equipemtn, make inner splint 6 up, place test specimen 10 on the inner splint 6 again and adjust centering, again another piece inner splint 6 is placed on the test specimen 10, after adjusting centering once more, open loading equipemtn test specimen 10 and these flexible prestrain anchor clamps 2 are preloaded into design level, insert second main tie 3 ' also fastening interior outer nut, so far can realize the installation of the flexible prestrain anchor clamps 2 of above-below direction.Test specimen 10 is taken off, repeat said process the flexible prestrain anchor clamps 2 of two other direction can be installed on test specimen 10.If rigidity prestrain anchor clamps 1 are installed on test specimen, the flexible prestrain anchor clamps of method and installation 2 are identical, just save the adjustment process of inferior pull bar 7, spring 8 and damper 9 in the flexible prestrain anchor clamps 2.
The present invention also can in this structure, only be equipped with spring 8 and/or damper 9 according to the specimen pre-loading multifunctional clamper group of designing another kind of structure shown in Figure 2 between external splint 5 and the inner splint 6, with the different restrained conditions of simulation periphery material.
The present invention can also be according to the specimen pre-loading multifunctional clamper group of designing the third structure shown in Figure 3, in this structure, second main tie 3 ' 5, two external splint 5 inboards of two external splints of connection of flexible prestrain anchor clamps 2 respectively are equipped with spring 8 and/or damper 9.Spring 8 and/or damper 9 directly acted on form the different restrained conditions that stress state is simulated periphery material on the test specimen 10.
Claims (3)
1. specimen pre-loading multifunctional clamper group, it is characterized in that: it is made up of rigidity prestrain anchor clamps (1) and/or flexible prestrain anchor clamps (2), in the rigidity prestrain anchor clamps (1), first main tie (3) connects two buttress type clamping plate (4), in the flexible prestrain anchor clamps (2), second main tie (3 ') connects two external splints (5), two inner splints (6) are located between two external splints (5), and time pull bar (7), spring (8) and/or damper (9) are installed between external splint (5) and the inner splint (6).
2. specimen pre-loading multifunctional clamper group, it is characterized in that: it is made up of rigidity prestrain anchor clamps (1) and/or flexible prestrain anchor clamps (2), in the rigidity prestrain anchor clamps (1), first main tie (3) connects two buttress type clamping plate (4), in the flexible prestrain anchor clamps (2), second main tie (3 ') connects two external splints (5), and two inner splints (6) are located between two external splints (5), and spring (8) and/or damper (9) are installed between external splint (5) and the inner splint (6).
3. specimen pre-loading multifunctional clamper group, it is characterized in that: it is made up of rigidity prestrain anchor clamps (1) and/or flexible prestrain anchor clamps (2), in the rigidity prestrain anchor clamps (1), first main tie (3) connects two buttress type clamping plate (4), in the flexible prestrain anchor clamps (2), second main tie (3 ') connects two external splints (5), and two external splints (5) inboard respectively is equipped with spring (8) and/or damper (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100606824A CN101482467B (en) | 2009-02-04 | 2009-02-04 | Specimen pre-loading multifunctional clamper group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100606824A CN101482467B (en) | 2009-02-04 | 2009-02-04 | Specimen pre-loading multifunctional clamper group |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101482467A CN101482467A (en) | 2009-07-15 |
| CN101482467B true CN101482467B (en) | 2011-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100606824A Expired - Fee Related CN101482467B (en) | 2009-02-04 | 2009-02-04 | Specimen pre-loading multifunctional clamper group |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102564849B (en) * | 2011-12-29 | 2015-05-27 | 北京建筑大学 | Asphalt mixture test fixture and using method thereof |
| CN102759483B (en) * | 2012-06-29 | 2014-04-16 | 宁波福士汽车部件有限公司 | Automobile pipe pressure test device |
| CN104129548B (en) * | 2014-07-07 | 2016-08-24 | 长兴大宇科机电有限公司 | Pole group's turnover clamp |
| CN104344997B (en) * | 2014-11-04 | 2017-01-11 | 同济大学 | Passive type restraint loading device for triaxial test |
| US10344857B2 (en) | 2015-02-03 | 2019-07-09 | Zhilin WANG | Gear-lever mechanism using meshing and pushing to rotate |
| CN112432850B (en) * | 2020-11-16 | 2021-07-23 | 河海大学 | Three-way independent loading novel mixed boundary true triaxial apparatus |
| CN113138116B (en) * | 2021-04-01 | 2022-04-08 | 北京科技大学 | Rigid-flexible rock pressure testing machine device for teaching demonstration |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2715138Y (en) * | 2004-06-24 | 2005-08-03 | 石油大学(北京) | Core holder simulating multi stratum stress field coupling action |
| CN201087832Y (en) * | 2007-05-25 | 2008-07-16 | 浙江工业大学 | Clamper for fine material tension test |
| CN201368827Y (en) * | 2009-02-04 | 2009-12-23 | 三峡大学 | Testpiece preload multifunctional fixture set |
-
2009
- 2009-02-04 CN CN2009100606824A patent/CN101482467B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2715138Y (en) * | 2004-06-24 | 2005-08-03 | 石油大学(北京) | Core holder simulating multi stratum stress field coupling action |
| CN201087832Y (en) * | 2007-05-25 | 2008-07-16 | 浙江工业大学 | Clamper for fine material tension test |
| CN201368827Y (en) * | 2009-02-04 | 2009-12-23 | 三峡大学 | Testpiece preload multifunctional fixture set |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平8-184542A 1996.07.16 |
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| CN101482467A (en) | 2009-07-15 |
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Granted publication date: 20110330 Termination date: 20140204 |