CN102507316B - Device and method for splitting concrete test cube - Google Patents
Device and method for splitting concrete test cube Download PDFInfo
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- CN102507316B CN102507316B CN 201110311729 CN201110311729A CN102507316B CN 102507316 B CN102507316 B CN 102507316B CN 201110311729 CN201110311729 CN 201110311729 CN 201110311729 A CN201110311729 A CN 201110311729A CN 102507316 B CN102507316 B CN 102507316B
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Abstract
The invention discloses a device and a method for splitting a concrete test cube. The device comprises a first steel bar and a second steel bar which are used for clamping the test cube to be split, and a steel base plate, wherein the first steel bar is arranged at one end of the steel base plate; the displacement of the first steel bar in a horizontal direction is limited by two steel bar fixing steel sheets; a bearing steel block is arranged at the other end of the steel base plate; the first steel bar and the bearing steel block are flush with each other, and are used for accommodating the test cube; the test cube is fixed by two test cube fixing steel sheets; the second steel bar and the first steel bar are oppositely arranged on two sides of the test cube; and the second steel bar is connected to the steel bar fixing steel sheets through springs. A fixing device is used for fixing the test cube, the first steel bar and the second steel bar in a pressing machine, so that the concrete test cube can be split; furthermore, the test cube is split precisely, and the split surfaces are flat and neat; therefore, the device is easy to operate, and has high work efficiency.
Description
Technical field
The present invention relates to the building materials technical field of measurement and test, particularly the improvement of a kind of concrete test block splitting device and method thereof.
Background technology
At present, in most of civil engineering tests, the method for splitting concrete test block is: at first, put a reinforcing bar on the backing plate of pressing machine lower seat; Then, the test block that needs splitting is placed on reinforcing bar, then needs the position of splitting to put a reinforcing bar at the test block upper surface, test block is clipped between two reinforcing bars.After pressing machine starts, when the upper lower bolster of pressing machine is pressed on reinforcing bar, along with reducing of distance between upper lower bolster, pressing machine constantly increases by the pressure that two reinforcing bars act on concrete test block, when pressure acquired a certain degree, test block will be basically be split along the position of two reinforcing bar load applications.
The position of reinforcing bar can be subject to the impact that backing plate moves in loading procedure in the splitting method of this concrete test block, and concrete test block also can move.When spilt test begins, need the experimenter that the test block holder that is clipped between reinforcing bar is propped up, make it remain at horizontality.But in the experiment of reality, accomplish that a desirable effect is very difficult.
Therefore the splitting method of test block at present has following deficiency:
1, the test block split-position is not accurate.In experimentation, when the moment that pressing machine contacts with the reinforcing bar that is placed on the concrete upper surface, reinforcing bar is as easy as rolling off a log to be moved, and causes the change in location of splitting surface, and after the test block splitting, surface irregularity brings inconvenience to follow-up work.For example: carry out the test block of carbonization experiment, if the splitting surface out-of-flatness has a strong impact on the measurement of true carbonation depth numerical value.
2, inefficiency.When placing test block, because when being placed in advance reinforcing bar on the backing plate of pressing machine bottom and contact with test block, easily be moved, thus needs back and forth adjustment test block could be placed, this brings great inconvenience to the experimenter; And test the whole process of carrying out, and all need the experimenter to prop up test block from the rear portion holder, make it remain at horizontality, but reach comparatively difficulty of test block level, especially when the test duration is longer.Due to test block be inconvenient to place, make experiment need to consume a large amount of time, and whole experiment all needs the experimenter to guarantee specially the test block level, experiment can not be operated by single, cause whole conventional efficient lower.
Therefore, prior art still haves much room for improvement and develops.
Summary of the invention
The object of the present invention is to provide a kind of concrete test block splitting device and method thereof, precisely do not reach ineffective problem to solve the test block split-position.
Technical scheme of the present invention is as follows:
A kind of concrete test block splitting device, comprise the first reinforcing bar and the second reinforcing bar, be used for clamping one and treat the test block of splitting, wherein, also be provided with a steel sole plate, one end of described steel sole plate is placed described the first reinforcing bar, and by fixedly described the first reinforcing bar horizontal direction displacement of steel disc restriction of two blocks of reinforcing bars, the other end of described steel sole plate is placed with a load-bearing bloom; Described the first reinforcing bar and the concordant setting of described load-bearing bloom are used for placing described test block, and by the fixedly fixing described test block of steel disc of two test blocks; Described the second reinforcing bar and described the first reinforcing bar are oppositely arranged on described test block both sides, and described the second reinforcing bar is connected to described reinforcing bar fixedly on steel disc by spring; Described reinforcing bar is the lower ending opening of steel disc and the reinforcing bar pickup groove that is provided with adaptive described first reinforcing bar steel disc height regulating tank of holding concurrently fixedly; Described reinforcing bar fixedly is provided with the spring fixed hole of a plurality of differing heights on steel disc.
Described concrete test block splitting device, wherein, be provided with a hollow groove on described steel sole plate, described load-bearing bloom lower end has been wholely set thread spindle, be provided with a bearing pad in the hollow groove of described steel sole plate, described bearing pad is provided with the tapped through hole of adaptive described load-bearing bloom lower end thread spindle.
Described concrete test block splitting device wherein, is provided with the load-bearing bloom shifting chute that a convenient described load-bearing bloom moves around on described steel sole plate.
Described concrete test block splitting device, wherein, the described steel sole plate left and right sides is respectively arranged with a cell body, be provided with bolt in cell body, also be provided with the first regulation and control knob, the second regulation and control knob and steel plate washer, all be provided with the tapped through hole of adaptive described bolt on described the first regulation and control knob, the second regulation and control knob and steel plate washer.
Described concrete test block splitting device, wherein, described test block fixedly steel disc is inverted L shape.
Described concrete test block splitting device wherein, also is provided with one and regulates and controls for described the first regulation and control knob and second the regulation and control knob shifting chute that knob moves around on described steel sole plate.
This section deletion.
This section deletion.
A kind of concrete test block splitting method based on concrete test block splitting device claimed in claim 4, described method comprises:
A. described the first reinforcing bar is positioned over described steel sole plate one end and by two blocks of described reinforcing bars fixedly steel disc limit described the first reinforcing bar horizontal direction displacement, then by described first regulate and control in knob, steel plate washer and steel sole plate side cell body bolt with described reinforcing bar fixedly steel disc be fixed on the side of described steel sole plate;
B. described load-bearing bloom is positioned in the load-bearing bloom shifting chute of steel sole plate, fixing by being threaded with bearing pad in the steel sole plate hollow groove, the height of regulating described load-bearing bloom flushes its height with described the first reinforcing bar that fixes;
C. described test block is positioned on described the first reinforcing bar and described load-bearing bloom, makes described test block need the position of splitting to be pressed on described the first reinforcing bar;
D. an end of described spring is fixed on described reinforcing bar fixedly on the spring fixed hole of steel disc, the other end is with after described the second reinforcing bar is connected, described the second reinforcing bar is fixed on described test block to be needed on the position of splitting, and the second reinforcing bar becomes relative clamping setting with the first reinforcing bar;
E. by two described test blocks fixedly steel disc described test block is fixed, then by the bolt in described the second regulation and control knob, steel plate washer and steel sole plate side cell body with described test block fixedly steel disc be fixed on the side of described steel sole plate.
A kind of concrete test block splitting device provided by the present invention and method thereof, carry out concrete test block splitting in pressing machine owing to being positioned over after having adopted stationary installation that described test block, the first reinforcing bar and the second reinforcing bar is fixing, described test block splitting is accurate, splitting surface is smooth, easy and simple to handle, high efficiency.
Description of drawings
Fig. 1 is the fixedly plan structure schematic diagram of the front splitting device of test block of the present invention.
Fig. 2 be in Fig. 1 A-A to diagrammatic cross-section.
Fig. 3 is the fixedly plan structure schematic diagram of splitting device and test block after test block of the present invention.
Fig. 4 be in Fig. 3 B-B to diagrammatic cross-section.
Fig. 5 is the fixedly side structure schematic diagram of splitting device after test block of the present invention.
Embodiment
Below with reference to accompanying drawing, the specific embodiment of the present invention is described in detail, described specific embodiment only in order to explain the present invention, is not for limiting the specific embodiment of the present invention.
Embodiment as shown in Figure 5, described concrete splitting device comprises fixedly fixedly steel disc 4, the first regulation and control knob 5, the second regulation and control knob 6, spring 7, the first reinforcing bar 8 and the second reinforcing bar 9 of steel disc 3, test block of steel sole plate 1, load-bearing bloom 2, reinforcing bar.described steel sole plate 1 is arranged on the bottom of whole device, be used for carrying whole device, the one end is placed described the first reinforcing bar 8 and is passed through fixedly steel disc 3 described the first reinforcing bar horizontal direction displacements of restriction of two blocks of described reinforcing bars, the length of described the first reinforcing bar 8 is greater than the width of described steel sole plate 1, described reinforcing bar is steel disc 3 lower ending openings and be provided with the reinforcing bar pickup groove steel disc height regulating tank 14 of holding concurrently fixedly, the width of cell body is slightly larger than the diameter of described the first reinforcing bar 8, the dual-side of cell body just can limit the first reinforcing bar 8 horizontal direction displacements like this, prevent that described the first reinforcing bar 8 from moving around in the horizontal direction.Described reinforcing bar fixedly steel disc 3 is fixing by described the first regulation and control knob 5, steel plate washer 31 and bolt 32, be provided with the tapped through hole adaptive with described bolt 32 on described the first regulation and control knob 5 and steel plate washer 31, described bolt 32 is passed the fixedly reinforcing bar pickup groove of the steel disc 3 lower ending openings steel disc height regulating tank 14 of holding concurrently of described reinforcing bar, described steel plate washer 31 is pushed down described reinforcing bar fixedly both sides of the lower ending opening of steel disc 3, then by described the first regulation and control knob 5 with described reinforcing bar fixedly steel disc 3 be fixed on described steel sole plate 1.This structure can guarantee not to be moved when described the first reinforcing bar 8 contacts with described test block 10.
the other end of described steel sole plate 1 is placed with described load-bearing bloom 2, described load-bearing bloom 2 lower ends have been wholely set thread spindle, as Fig. 1, shown in Figure 2, be provided with hollow groove on described steel sole plate, be placed with a bearing pad 21 in described hollow groove, be provided with the tapped through hole adaptive with described load-bearing bloom 2 lower end thread spindles on described bearing pad 21, described load-bearing bloom 2 is threaded by described bearing pad 21 and is fixed on described steel sole plate 1, be threaded and regulate the height of described load-bearing bloom 2, its height with described the first reinforcing bar 8 is flushed, guarantee that described test block 10 can remain on horizontality in this experiment.
As shown in Figure 3, Figure 4, described test block 10 be placed on described the first reinforcing bar 8 and described load-bearing bloom 2 and by two described test blocks fixedly steel disc 4 fix, described test block 10 is pressed on described the first reinforcing bar 8, the weight of described test block 10 can limit the displacement of described the first reinforcing bar 8 in the vertical directions, prevents that described the first reinforcing bar 8 in the vertical directions from moving.described test block fixedly steel disc 4 is inverted L shape, the inverted L shape minor face is pushed down described test block 10, long limit is fixing with the bolt 32 that is arranged in described steel sole plate 1 side cell body by the second regulation and control knob 6 and steel plate washer 31, be provided with the tapped through hole adaptive with described bolt 32 on described the second regulation and control knob 6 and steel plate washer 31, described bolt 32 is passed the fixedly test block pickup groove of the steel disc 4 lower ending openings steel disc height regulating tank 15 of holding concurrently of described test block, described steel plate washer 31 is pushed down described test block fixedly both sides of the lower ending opening of steel disc 4, then by described steel plate washer 31 and described second regulation and control knob 6 with described test block fixedly steel disc 4 be fixed on described steel sole plate 1.This structure can guarantee that described test block 10 is not moved in whole experimentation.
As shown in Figure 5, described the second reinforcing bar 9 is positioned over described test block 10 upsides to be needed on the position of splitting, with described the second reinforcing bar 9 and described the first relative clamping setting of reinforcing bar 8, by described spring 7 with described the second reinforcing bar 9 and described reinforcing bar fixedly steel disc 3 be connected, guarantee described the second reinforcing bar 9 is fixed on described reinforcing bar fixedly on steel disc 3.Described reinforcing bar fixedly is provided with the spring fixed hole 13 of a plurality of differing heights on steel disc 3, can arrange one every 10mm.Described spring 7 height of splitting test block 10 as required selects suitable spring fixed hole 13 to be connected and fixed, and because described spring 7 is located flexibly, is not moved in the time of can guaranteeing described the second reinforcing bar 9 is contacted with described test block 10.
After described test block 10 is fixedly completed, it is positioned over carries out the sample splitting in pressing machine, the splitting device that is loaded with described test block 10 is placed on the pressing machine lower seat, after experiment beginning, the top of pressing machine loads steel plate and can add and be pressed on described the second reinforcing bar 9; Along with the carrying out of experiment, pressure will transmit along described the second reinforcing bar 9 and the first reinforcing bar 8 folded cross section; When pressure acquires a certain degree, described test block 10 will be rived in this cross section, because described the first reinforcing bar 8, the second reinforcing bar 9, test block 10 are just fixedly completed before experiment, so, can not be moved in whole experimentation, can guarantee that the rupture surface of being rived is smooth.
Because described the first reinforcing bar 8 is limited the horizontal direction displacement in advance, when placing described test block 10, can guarantee not to be moved when described the first reinforcing bar 8 contacts with described test block 10, so the experimenter can place described test block 10 rapidly; In whole experimentation, described test block 10 all is positioned on described the first reinforcing bar 8 and described load-bearing bloom 2, because described load-bearing bloom 2 flushes with the height of described the first reinforcing bar 8, guarantee that described test block 10 can remain on horizontality in whole experiment, so it is flat not need the experimenter that it is held up, whole experiment can be undertaken by single, therefore can increase work efficiency.
Concrete test block splitting method of the present invention comprises:
A. described the first reinforcing bar 8 is positioned over described steel sole plate 1 one ends and by two blocks of described reinforcing bars fixedly steel disc 3 limit described the first reinforcing bar 8 horizontal direction displacements, then by described first regulate and control in knob 5, steel plate washer 31 and steel sole plate 1 side cell body bolt 32 with described reinforcing bar fixedly steel disc 3 be fixed on the side of described steel sole plate 1;
B. described load-bearing bloom 2 is positioned in the load-bearing bloom shifting chute 11 of steel sole plate 1, fixing by being threaded with bearing pad 21 in steel sole plate 1 hollow groove, the height of regulating described load-bearing bloom 2 flushes its height with described the first reinforcing bar 8 that fixes;
C. described test block 10 is positioned on described the first reinforcing bar 8 and described load-bearing bloom 2, makes described test block 10 need the position of splitting to be pressed on described the first reinforcing bar 8;
D. an end of described spring 7 is fixed on described reinforcing bar fixedly on the spring fixed hole 13 of steel disc 3, the other end is with after described the second reinforcing bar 9 is connected, described the second reinforcing bar 9 is fixed on described test block 10 to be needed on the position of splitting, 8 one-tenth relative clamping settings of the second reinforcing bar 9 and the first reinforcing bar;
E. fixedly steel disc 4 is fixing with described test block 10 by two described test blocks, then by described second regulate and control in knob 6, steel plate washer 31 and steel sole plate 1 side cell body bolt 32 with described test block fixedly steel disc 4 be fixed on the side of described steel sole plate 1.
Preferably, as shown in Figure 1, be provided with one on described steel sole plate 1 and be used for the load-bearing bloom shifting chute 11 that described load-bearing bloom 2 moves around, described load-bearing bloom 2 can move around on described steel sole plate 1 thus, as shown in Figure 2, be provided with bearing pad 21 in hollow groove on described steel sole plate 1, described bearing pad 21 is threaded connection with described load-bearing bloom 2, can regulate thus the height of described load-bearing bloom 2.As shown in Figure 5, described reinforcing bar is steel disc 3 lower ending openings and be provided with the reinforcing bar pickup groove steel disc height regulating tank 14 of holding concurrently fixedly, can regulate according to the height of described the first reinforcing bar 8, thereby described the first reinforcing bar 8 is fixed on described steel sole plate 1, the hold concurrently cell body height of steel disc height regulating tank 14 of described reinforcing bar pickup groove adds the overall height of the above the first reinforcing bar 8 higher than described steel sole plate 1, when changing the first reinforcing bar 8 according to the big or small needs of test block 10, described the first reinforcing bar 8 can be put into from groove, thereby be convenient for changing described the first reinforcing bar 8.This structure can be regulated position be used to the load-bearing bloom 2 of placing described test block 10 and the first reinforcing bar 8 according to the size of described test block 10.Also be provided with one on described steel sole plate 1 and regulate and control for described the first regulation and control knob 5 and second the regulation and control knob shifting chute 12 that knob 6 moves around, described the first regulation and control knob 5 and the second regulation and control knob 6 can move around and pass through described steel plate washer 31 and bolt 32 to be fixed along the side of described steel sole plate 1, described test block fixedly steel disc 4 lower ending opening and be provided with the test block pickup groove steel disc height regulating tank 15 of holding concurrently, can adjust according to the height of test block 10.The present invention can regulate easily according to the size of described test block 10, the position of needs splitting, thereby the difference of described test block 10 by experiment need to be fixed on described steel sole plate 1, to reach the experiment optimum efficiency.
Should be understood that; the above is only preferred embodiment of the present invention; be not sufficient to limit technical scheme of the present invention; for those of ordinary skills; within the spirit and principles in the present invention; can be increased and decreased according to the above description, replacement, conversion or improvement, and all these increases and decreases, replacement, conversion or improve after technical scheme, all should belong to the protection domain of claims of the present invention.
Claims (7)
1. concrete test block splitting device, comprise the first reinforcing bar and the second reinforcing bar, be used for clamping one and treat the test block of splitting, it is characterized in that, also be provided with a steel sole plate, one end of described steel sole plate is placed described the first reinforcing bar, and by fixedly described the first reinforcing bar horizontal direction displacement of steel disc restriction of two blocks of reinforcing bars, the other end of described steel sole plate is placed with a load-bearing bloom; Described the first reinforcing bar and the concordant setting of described load-bearing bloom are used for placing described test block, and by the fixedly fixing described test block of steel disc of two test blocks; Described the second reinforcing bar and described the first reinforcing bar are oppositely arranged on described test block both sides, and described the second reinforcing bar is connected to described reinforcing bar fixedly on steel disc by spring; Described reinforcing bar is the lower ending opening of steel disc and the reinforcing bar pickup groove that is provided with adaptive described first reinforcing bar steel disc height regulating tank of holding concurrently fixedly; Described reinforcing bar fixedly is provided with the spring fixed hole of a plurality of differing heights on steel disc.
2. concrete test block splitting device according to claim 1, it is characterized in that, be provided with a hollow groove on described steel sole plate, described load-bearing bloom lower end has been wholely set thread spindle, be provided with a bearing pad in the hollow groove of described steel sole plate, described bearing pad is provided with the tapped through hole of adaptive described load-bearing bloom lower end thread spindle.
3. concrete test block splitting device according to claim 1, is characterized in that, is provided with the load-bearing bloom shifting chute that a convenient described load-bearing bloom moves around on described steel sole plate.
4. concrete test block splitting device according to claim 1, it is characterized in that, the described steel sole plate left and right sides is respectively arranged with a cell body, be provided with bolt in cell body, also be provided with the first regulation and control knob, the second regulation and control knob and steel plate washer, all be provided with the tapped through hole of adaptive described bolt on described the first regulation and control knob, the second regulation and control knob and steel plate washer.
5. concrete test block splitting device according to claim 1, is characterized in that, described test block fixedly steel disc is inverted L shape.
6. concrete test block splitting device according to claim 4, is characterized in that, also is provided with one on described steel sole plate and regulates and controls for described the first regulation and control knob and second the regulation and control knob shifting chute that knob moves around.
7. concrete test block splitting method based on concrete test block splitting device claimed in claim 4, described method comprises:
A. described the first reinforcing bar is positioned over described steel sole plate one end and by two blocks of described reinforcing bars fixedly steel disc limit described the first reinforcing bar horizontal direction displacement, then by described first regulate and control in knob, steel plate washer and steel sole plate side cell body bolt with described reinforcing bar fixedly steel disc be fixed on the side of described steel sole plate;
B. described load-bearing bloom is positioned in the load-bearing bloom shifting chute of steel sole plate, fixing by being threaded with bearing pad in the steel sole plate hollow groove, the height of regulating described load-bearing bloom flushes its height with described the first reinforcing bar that fixes;
C. described test block is positioned on described the first reinforcing bar and described load-bearing bloom, makes described test block need the position of splitting to be pressed on described the first reinforcing bar;
D. an end of described spring is fixed on described reinforcing bar fixedly on the spring fixed hole of steel disc, the other end is with after described the second reinforcing bar is connected, described the second reinforcing bar is fixed on described test block to be needed on the position of splitting, and the second reinforcing bar becomes relative clamping setting with the first reinforcing bar;
E. by two described test blocks fixedly steel disc described test block is fixed, then by the bolt in described the second regulation and control knob, steel plate washer and steel sole plate side cell body with described test block fixedly steel disc be fixed on the side of described steel sole plate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110311729 CN102507316B (en) | 2011-10-14 | 2011-10-14 | Device and method for splitting concrete test cube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110311729 CN102507316B (en) | 2011-10-14 | 2011-10-14 | Device and method for splitting concrete test cube |
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| CN102507316A CN102507316A (en) | 2012-06-20 |
| CN102507316B true CN102507316B (en) | 2013-11-06 |
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| CN106644691A (en) * | 2016-12-09 | 2017-05-10 | 安徽省建筑工程质量监督检测站 | Support leveling device for testing of splitting tensile strength and clamp thereof |
| CN107764738B (en) * | 2017-10-26 | 2021-02-02 | 吉林建筑大学 | Steel fiber drawing device in concrete |
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| CN101706389B (en) * | 2009-09-21 | 2012-07-04 | 方远建设集团股份有限公司 | Device for testing fracture energy of concrete by three-point bending beam without self-gravity doing work |
| KR20110049134A (en) * | 2009-11-04 | 2011-05-12 | 성균관대학교산학협력단 | Apparatus for fixing specimen for tensile test |
| CN201859089U (en) * | 2010-08-03 | 2011-06-08 | 天津大学 | Test fixture for split tensile strength of concrete |
| CN202305331U (en) * | 2011-10-14 | 2012-07-04 | 深圳大学 | Concrete test block splitting device |
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