CN101419143A - Bidirectional composite force loading test device for masonry test piece - Google Patents
Bidirectional composite force loading test device for masonry test piece Download PDFInfo
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- CN101419143A CN101419143A CNA2008102031117A CN200810203111A CN101419143A CN 101419143 A CN101419143 A CN 101419143A CN A2008102031117 A CNA2008102031117 A CN A2008102031117A CN 200810203111 A CN200810203111 A CN 200810203111A CN 101419143 A CN101419143 A CN 101419143A
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- masonry
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Abstract
The invention relates to a bidirectional composite stress loading test device for a test piece of a brick body and belongs to the field of civil engineering. The device mainly comprises an adjustable reaction frame, a pressurization screw stem and a mouth-shaped frame; the steel reaction frame which can adjust distance and the pressurization screw stem with a force transducer are utilized to realize the loading of transverse pressure or tensile force of the test piece of the brick body; and the largest loading value of the pressurization screw stem can reach 150 kN. The steel reaction frame consists of a steel plate and a screw stem; and the relative distance of the steel plate of the reaction frame can be flexibly adjusted so as to meet the requirement of the test pieces with different specifications. The vertical direction of the test piece is matched with the prior hydraulic jack to realize a full-process bidirectional loading test on the test piece of the brick body. The loading device has a simple structure, convenient disassembly and assembly and small occupied area, can be repeatedly used, can move, is convenient to load and control, has accurate and reliable tested data and can fully meet the loading requirement of the bidirectional composite stress loading test on the test piece of the brick body.
Description
Technical field
The invention belongs to field of civil engineering, relate to a kind of load testing machine, especially a kind of bidirectional composite force loading test device for masonry test piece is for the bidirectional stress performance of studying masonry or other materials provides a kind of simple and practical loading tool.
Background technology
Only being subjected to a kind of member of load action merely in building structure is seldom, material in the compound stress lower member all is in complex stress condition, determines that therefore the stress performance and the failure mode of composite force effect lower member and material is one of key content of Structural Engineering research.Masonry is extensively applied to each structure field at present as a kind of not only ancient but also novel material.Along with continuing to bring out of various novel building materials, the research of building material performance under the composite force effect is seemed particularly important, and the bidirectional composite force load test of masonry test specimen is one of effective technical means comparatively wherein.The bidirectional composite force load testing machine of masonry adopts the method for two-way lifting jack to load mostly at present, therefore has the lifting jack of a direction need regulate at any time to guarantee the constant of horizontal loaded value, and complicated operation, test specimen cause danger easily when destroying.Because will be at the fixing lifting jack of both direction, so charger takes up an area of greatlyyer, and instrument is installed inconvenient, certainly will reduce test efficiency like this.Usually this type of charger is unrenewable in other size test specimens, and utilization factor is low.Simultaneously and since carry out the masonry test specimen draw-to cut composite force test difficulty bigger, therefore at present corresponding charger seldom often will adopt the design complicated apparatus to test.This also is the less one of the main reasons of present domestic composite force experiment quantity.
Summary of the invention
The object of the present invention is to provide a kind of bidirectional composite force loading test device for masonry test piece, for the composite force performance test of all kinds of masonry test specimens provides a cover simple and practical two-way loading system, can be applied to the pressure of masonry test specimen-cut the composite force test, draw-cut the composite force test, draw-presses in composite force test and the bi-directional compression test, wherein so that the drawing of the pressure-scissor test of masonry double shear test specimen and mortar specimen-scissor test is the most typical.
For reaching above purpose, solution of the present invention is:
A kind of bidirectional composite force loading test device for masonry test piece, it comprises web joint, dynamometer, pressing means, web joint is three and connects by web member, left and right web joint is fixed by web member, cooperating fixedly with the right side web joint, the middle connecting plate of test specimen is movably connected on the web joint, the left side web joint is equipped with exerts pressure and fixes the pressing means of its position middle web joint, and intermediate connector is provided with corresponding with pressing means and continuous dynamometer.
This web member is 4 screw rods, passes the left, center, right web joint respectively and assembles.
This left, center, right web joint offers four jiaos relevant position for screw rod and wears fixing circular hole.
Have the circular hole that passes for pressing means in the middle of this left plate and be provided with the nut that is used for fixing, match with pressing means, pressing means is the pressurization screw rod.
This middle connecting plate is by the screw retention dynamometer, and dynamometry is counted BLR-1 type resistance-strain drawing and pressing type load sensor.
Be provided with the balance nut in the middle of the right side of this right side web joint.
It also comprises spanner, is used for the application of force on the pressing means of web member outboard end on the left of it is fixed in; It is the hemisphere face structure that pressing means withstands the other end that connects manometric screw.
It also comprises the hollow frame, and it is connected and fixed on the right side of intermediate connector, and its right side web member right flank middle and the hollow frame has the hole that wears fixing test specimen.
Offer the aperture that is used for fixing the hollow frame in the middle of this middle connecting plate, and use bolt.
The right side of this hollow frame also has the triangle ribbed stiffener.
This hollow frame is steel, and web member is a steel plate.
Concrete, the present invention as masonry double shear test specimen pressure-when cutting the composite force charger, reaction frame is assembled by three block plates and four screw rods, four jiaos of steel plate all have circular hole, screw rod passes circular hole three block plates is coupled together.About two block plates fix its relative distance by outboard nut, light plate can slide arbitrarily betwixt.Wherein has circular hole and be welded with big nut in the middle of the left plate, the pressurization screw surface has supporting screw thread and passes from big nut, is welded with in the middle of the right steel plate to be used for the nut of balance moment of flexure.One end of pressurization screw rod applies moment of torsion realizing manual pressure by spanner, and the other end is processed into hemisphere face and withstands the screw that is connected on the dynamometer with the resistance of reducing friction.The one side of middle steel plate is welded with the fixedly screw of dynamometer, and another side cooperates with right steel plate clamps test specimen.
The present invention do mortar specimen draw-cut the composite force charger time, increase a hollow steel framework press-cutting on the basis of device, and be fixed on the light plate with bolt, this pressure that pressurization screw rod will be produced is converted to the suffered pulling force of test specimen.Centre and hollow steel framework right flank centre at left plate are opened an aperture respectively, and the pre-buried reinforcing bar in mortar specimen two ends therefrom passes respectively, and fixes (in advance in end reinforced machining screw) with nut.
Owing to adopted such scheme, the present invention to have following characteristics: charger is simple in structure, easy accessibility, floor area is little, and is reusable and removable, and Loading Control is convenient, the data of surveying accurately and reliably, can fully satisfy the loading requirement of masonry test specimen bidirectional composite force load test.
Description of drawings
Fig. 1 press-cuts composite force charger synoptic diagram for masonry double shear test specimen.
Fig. 2 draw-cuts composite force charger synoptic diagram for mortar specimen.
Fig. 3 press-cuts composite force charger system diagram for masonry double shear test specimen.
Fig. 4 press-cuts the composite force charger for masonry double shear test specimen and decomposes top exploded view.
Fig. 5 draw-cuts the composite force charger for mortar specimen and analyses and observe system diagram.
Fig. 6 draw-cuts composite force charger vertical view for mortar specimen.
Fig. 7 press-cuts composite force load test single unit system figure for masonry double shear test specimen.
Fig. 8 draw-cuts composite force load test single unit system cut-open view for mortar specimen.
1. left plate; 2. light plate; 3. right steel plate; 4. pressurization screw rod; 5. spanner; 6. dynamometer; 7. pressurized screw; 8. nut; 9. screw rod; 10. cushion block; 11. lifting jack; 12. ball pivot; 13. concrete perforated brick test specimen; 14. laboratory reaction frame; 15. hollow frame; 16. tensile test piece hold-down nut; 17. hollow frame set bolt; 18. go up to the scissors mouth; 19. down to the scissors mouth; 20. triangle ribbed stiffener; 21. mortar specimen; 22. big cushion block;
Embodiment
The present invention is further illustrated below in conjunction with the accompanying drawing illustrated embodiment.
Embodiment 1
The present invention is as the pressure of masonry double shear test specimen-(see Fig. 1, Fig. 3 and Fig. 4 for details) when cutting the composite force charger, and reaction frame is assembled by three block plates and four screw rods 9, and four jiaos of steel plate all have circular hole, and screw rod passes circular hole three block plates are coupled together.About two block plates fix its relative distance by outboard nut 8, light plate 2 can slide arbitrarily betwixt.Wherein have circular hole and be welded with big nut in the middle of the left plate 1, pressurization screw rod 4 surfaces have supporting screw thread and pass from big nut, are welded with in the middle of the right steel plate 3 to be used for the nut of balance moment of flexure.One end of pressurization screw rod 4 applies moment of torsion realizing manual pressure by spanner 5, and the other end is processed into hemisphere face and withstands the screw 7 that is connected on the dynamometer 6 with the resistance of reducing friction.Light plate 2 is welded with the fixedly screw of dynamometer towards the one side of left plate 1, and another side cooperates with right steel plate 3 clamps test specimen 13.Dynamometry is counted BLR-1 type resistance-strain drawing and pressing type load sensor.
Be the pressure of carrying out masonry double shear test specimen and other test specimens-cut the composite force load test, the present invention can finish loading tasks according to the following step:
(1) according to Fig. 4 Design and Machining scalable reaction frame and pressurization screw rod 4 parts such as grade;
(2) test specimen 13 is placed on the laboratory reaction frame 14, each parts of assembly unit make test specimen 13 between middle right two block plates of reaction frame, and with cushion block 10 with test specimen 13 bed hedgehoppings, make its center of gravity concordant with light plate 2 centers;
(3) press distance and hold-down nut 8 between the size adjustment reaction frame steel plate of test specimen 13;
(4) Installation and Debugging comprise other test units (Fig. 7) of vertical lifting jack 11, ball pivot 12 on laboratory reaction frame 14;
(5) utilize 4 pairs of test specimens of spanner 5 rotation pressurization screw rods to carry out the loading of transverse pressure, when the revolving force that applies is big, must topple in case install outside the generation plane with the fixing balance nut on the right steel plate 3 of reaction frame of another spanner;
(6) when pressure reaches predetermined value shown in the dynamometer 6, hold lotus and load with 11 pairs of test specimen 13 tops of vertical lifting jack after 2～3 minutes, destroy until test specimen.
The present invention do mortar specimen draw-cut the composite force charger time (seeing Fig. 2, Fig. 5 and Fig. 6 for details), increase a hollow steel framework 15 press-cutting on the basis of device, be welded with ribbed stiffener 20 on it.With bolt 17 hollow steel framework 15 is fixed on the light plate 2, this pressure that pressurization screw rod 4 will be produced is converted to the suffered pulling force of test specimen.Centre and hollow steel framework 15 right flanks centre at right steel plate 3 are opened an aperture respectively, and the pre-buried reinforcing bar in mortar specimen 21 two ends therefrom passes respectively, and fixes (in advance in end reinforced machining screw) with nut 16.
Draw-cut the composite force load test for what carry out mortar specimen and other test specimens, the present invention can finish loading tasks according to the following step:
(1) according to parts such as Fig. 6 Design and Machining scalable reaction frame, pressurization screw rod 4 and hollow frames 15;
(2) each parts of assembly unit and hollow frame 15 is installed on the reaction frame, make test block 21 between right steel plate 3 of reaction frame and hollow frame 15, and the threaded reinforcing bar that will be reserved in test block 21 both sides passes right steel plate 3 central small hole of reaction frame and hollow frame 15 central small hole respectively, fixing with nut 16, and under placing on the cushion block 22 to scissors mouth 19, be located at test block 21 bottoms, place on test block 21 tops scissors mouth 18;
(3) by the size adjustment reaction frame steel plate of test block 21 and the distance and the hold-down nut 8 of hollow frame 15;
(4) Installation and Debugging comprise other test units (Fig. 8) of vertical lifting jack 11, ball pivot 12 on laboratory reaction frame 14;
(5) utilize 4 pairs of test blocks of spanner 5 rotation pressurization screw rods laterally to load, pressurization screw rod 4 applied pressure through port font frames 15 are converted to the suffered lateral pull in test block 21 two ends;
(6) when pressure reaches predetermined value shown in the dynamometer 6, hold lotus and with vertical lifting jack 11 cooperations the scissors mouth is carried out the loading of vertical shearing power to test block after 2～3 minutes, destroy until test block.
The present invention mainly is made up of scalable reaction frame, pressurization screw rod and hollow frame, and wherein reaction frame is made up of steel plate and screw rod, and the relative distance that can adjust the reaction frame steel plate flexibly is required to satisfy the different size test specimen; Because can utilize the steel reaction frame of adjustable distance and be with the loading of the pressurization screw rod realization of force cell to the transverse pressure or the pulling force of masonry test specimen, pressurization screw rod maximum load value can reach 150kN; And charger is simple in structure, easy accessibility, floor area is little, and is reusable and removable, Loading Control is convenient, the data of surveying accurately and reliably, can fully satisfy the loading requirement of masonry test specimen bidirectional composite force load test.
The above-mentioned description to embodiment is can understand and apply the invention for ease of those skilled in the art.The person skilled in the art obviously can easily make various modifications to these embodiment, and needn't pass through performing creative labour being applied in the General Principle of this explanation among other embodiment.Therefore, the invention is not restricted to the embodiment here, those skilled in the art should be within protection scope of the present invention for improvement and modification that the present invention makes according to announcement of the present invention.
Claims (12)
1, a kind of bidirectional composite force loading test device for masonry test piece, it is characterized in that: it comprises web joint, dynamometer, pressing means, web joint is three and connects by web member, left and right web joint is fixed by web member, cooperating fixedly with the right side web joint, the middle connecting plate of test specimen is movably connected on the web joint, the left side web joint is equipped with exerts pressure and fixes the pressing means of its position middle web joint, and intermediate connector is provided with corresponding with pressing means and continuous dynamometer.
2, bidirectional composite force loading test device for masonry test piece as claimed in claim 1 is characterized in that: this web member is 4 screw rods, passes the left, center, right web joint respectively and assembles.
3, bidirectional composite force loading test device for masonry test piece as claimed in claim 2 is characterized in that: this left, center, right web joint offers four jiaos relevant position for screw rod and wears fixing circular hole.
4, bidirectional composite force loading test device for masonry test piece as claimed in claim 1 is characterized in that: have the circular hole that passes for pressing means in the middle of this left plate and be provided with the nut that is used for fixing, match with pressing means, pressing means is the pressurization screw rod.
5, bidirectional composite force loading test device for masonry test piece as claimed in claim 1 is characterized in that: this middle connecting plate is by the screw retention dynamometer.
6, bidirectional composite force loading test device for masonry test piece as claimed in claim 1 is characterized in that: be provided with the balance nut in the middle of the right side of this right side web joint.
7, bidirectional composite force loading test device for masonry test piece as claimed in claim 1 is characterized in that: it also comprises spanner, is used for the application of force on the pressing means of web member outboard end on the left of it is fixed in; It is the hemisphere face structure that pressing means withstands the other end that connects manometric screw.
8, as the described bidirectional composite force loading test device for masonry test piece of claim 1-7, it is characterized in that: this web member is a steel plate.
9, as the described bidirectional composite force loading test device for masonry test piece of claim 1-7, it is characterized in that: it also comprises the hollow frame, it is connected and fixed on the right side of intermediate connector, and its right side web member right flank middle and the hollow frame has the hole that wears fixing test specimen.
10, bidirectional composite force loading test device for masonry test piece as claimed in claim 9 is characterized in that: offer the aperture that is used for fixing the hollow frame in the middle of this middle connecting plate, and use bolt.
11, bidirectional composite force loading test device for masonry test piece as claimed in claim 9 is characterized in that: the right side of this hollow frame also has the triangle ribbed stiffener.
12, bidirectional composite force loading test device for masonry test piece as claimed in claim 9 is characterized in that: this hollow frame is steel, and web member is a steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102031117A CN101419143A (en) | 2008-11-21 | 2008-11-21 | Bidirectional composite force loading test device for masonry test piece |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102031117A CN101419143A (en) | 2008-11-21 | 2008-11-21 | Bidirectional composite force loading test device for masonry test piece |
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| CN101419143A true CN101419143A (en) | 2009-04-29 |
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| CNA2008102031117A Pending CN101419143A (en) | 2008-11-21 | 2008-11-21 | Bidirectional composite force loading test device for masonry test piece |
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Cited By (22)
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| CN101672744B (en) * | 2009-10-23 | 2011-03-16 | 北京工业大学 | Reversed loading test device under combined action |
| CN102135475A (en) * | 2010-08-04 | 2011-07-27 | 中国海洋大学 | Direct-cutting antiskid structure model tester |
| WO2012042510A1 (en) | 2010-10-01 | 2012-04-05 | Universidade Do Minho | Tube-jack system and method for testing irregular masonry walls |
| CN102535531A (en) * | 2012-01-16 | 2012-07-04 | 辽宁省交通高等专科学校 | Loading test device of inclined dynamic load of pile foundation |
| CN102768155A (en) * | 2012-07-26 | 2012-11-07 | 西安建筑科技大学 | Mechanical performance test method of masonry structure under effect of bidirectional principal stress |
| CN103760009A (en) * | 2014-01-17 | 2014-04-30 | 上海理工大学 | Brickwork pressure-shearing device |
| CN104101539A (en) * | 2014-07-17 | 2014-10-15 | 沈阳兴鑫科技有限公司 | Hydraulic type two-way stretching test machine |
| CN104374497A (en) * | 2014-11-20 | 2015-02-25 | 上海交通大学 | Bidirectional force-measurement sensor system |
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| CN108318338A (en) * | 2018-02-01 | 2018-07-24 | 塔里木大学 | A kind of device and method of test stretching and cyclic bending concrete durability |
| CN108426763A (en) * | 2015-04-22 | 2018-08-21 | 华侨大学 | A kind of rectangular slab of stone builds stone walling mortar joint mechanical test method by laying bricks or stones |
| CN109357961A (en) * | 2018-12-12 | 2019-02-19 | 吉林大学 | A kind of workshop flap seat biaxial loadings fatigue experimental device and test method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101672744B (en) * | 2009-10-23 | 2011-03-16 | 北京工业大学 | Reversed loading test device under combined action |
| CN102135475A (en) * | 2010-08-04 | 2011-07-27 | 中国海洋大学 | Direct-cutting antiskid structure model tester |
| WO2012042510A1 (en) | 2010-10-01 | 2012-04-05 | Universidade Do Minho | Tube-jack system and method for testing irregular masonry walls |
| CN102535531B (en) * | 2012-01-16 | 2014-03-05 | 辽宁省交通高等专科学校 | Loading test device of inclined dynamic load of pile foundation |
| CN102535531A (en) * | 2012-01-16 | 2012-07-04 | 辽宁省交通高等专科学校 | Loading test device of inclined dynamic load of pile foundation |
| CN102768155B (en) * | 2012-07-26 | 2015-02-18 | 西安建筑科技大学 | Mechanical performance test method of masonry structure under effect of bidirectional principal stress |
| CN102768155A (en) * | 2012-07-26 | 2012-11-07 | 西安建筑科技大学 | Mechanical performance test method of masonry structure under effect of bidirectional principal stress |
| CN103760009A (en) * | 2014-01-17 | 2014-04-30 | 上海理工大学 | Brickwork pressure-shearing device |
| CN104034522B (en) * | 2014-06-17 | 2017-02-22 | 西安交通大学 | Experiment table for detecting static rigidity of rolling linear guide rail pair |
| CN104101539A (en) * | 2014-07-17 | 2014-10-15 | 沈阳兴鑫科技有限公司 | Hydraulic type two-way stretching test machine |
| CN104374497A (en) * | 2014-11-20 | 2015-02-25 | 上海交通大学 | Bidirectional force-measurement sensor system |
| CN108426763A (en) * | 2015-04-22 | 2018-08-21 | 华侨大学 | A kind of rectangular slab of stone builds stone walling mortar joint mechanical test method by laying bricks or stones |
| CN106840885A (en) * | 2017-03-29 | 2017-06-13 | 湖北武大珞珈工程结构检测咨询有限公司 | A kind of large-tonnage horizontal tensile testing machine |
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| CN107589031B (en) * | 2017-07-17 | 2024-04-05 | 广西电网有限责任公司电力科学研究院 | Check-up draws and presses reaction frame |
| CN107389443A (en) * | 2017-09-04 | 2017-11-24 | 苏交科集团股份有限公司 | The sample support device of static load anchoring test |
| CN107764437A (en) * | 2017-10-30 | 2018-03-06 | 太原理工大学 | Drawing and pressing type concrete stress sensor |
| CN107764437B (en) * | 2017-10-30 | 2023-10-31 | 太原理工大学 | Tension-compression type concrete stress sensor |
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| CN107941601A (en) * | 2017-12-20 | 2018-04-20 | 西南交通大学 | A kind of load maintainer of shield tunnel construction duct piece connector test device |
| CN107941601B (en) * | 2017-12-20 | 2024-05-28 | 国家电网有限公司 | Loading mechanism of segment joint test device of shield tunnel structure |
| CN108318338A (en) * | 2018-02-01 | 2018-07-24 | 塔里木大学 | A kind of device and method of test stretching and cyclic bending concrete durability |
| CN108318338B (en) * | 2018-02-01 | 2024-02-27 | 塔里木大学 | Device and method for testing durability of tensile and reciprocating bending concrete |
| CN108169124A (en) * | 2018-02-23 | 2018-06-15 | 深圳市市政设计研究院有限公司 | Armored concrete pull device and method |
| CN109357961A (en) * | 2018-12-12 | 2019-02-19 | 吉林大学 | A kind of workshop flap seat biaxial loadings fatigue experimental device and test method |
| CN111595679A (en) * | 2020-06-18 | 2020-08-28 | 大连理工大学 | Experimental device and method for carrying out pull-shear combined loading on embedded pressing block |
| CN111595679B (en) * | 2020-06-18 | 2021-10-15 | 大连理工大学 | Experimental device and method for carrying out pull-shear combined loading on embedded pressing block |
| CN113358494A (en) * | 2021-06-07 | 2021-09-07 | 西安建筑科技大学 | Bamboo wood material draws-cuts test device |
| CN113358495A (en) * | 2021-06-07 | 2021-09-07 | 西安建筑科技大学 | Bamboo wood material presses-cuts test device |
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Open date: 20090429 |