CN2084615U - Single brick shearing tester for brick wall - Google Patents
Single brick shearing tester for brick wall Download PDFInfo
- Publication number
- CN2084615U CN2084615U CN 90213702 CN90213702U CN2084615U CN 2084615 U CN2084615 U CN 2084615U CN 90213702 CN90213702 CN 90213702 CN 90213702 U CN90213702 U CN 90213702U CN 2084615 U CN2084615 U CN 2084615U
- Authority
- CN
- China
- Prior art keywords
- brick
- rotating disk
- anchor clamps
- mortar
- pulling force
- 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
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to a single brick shearing tester for a brick wall, used to detect dynamics index of performance of a new and old building wall body and indirectly work out the existing strength of mortar. Structure is that the device is provided with one reverse force rack arranged on the same horizontal plane with a clamping apparatus. A slipway is opened at one side of the reverse force rack with a geometric-form. An additional load rotating disk slips in the slipway in a transverse direction. One side of a tension sensor is connected with a steel piece clamping apparatus fixed by a bolt. The other side of the tension sensor is connected with the additional load rotating disk and is fixed on the reverse force rack. The horizontal position of the tension sensor is connected with an electronic scale and data processing system display detection dynamics index. The utility model has simple structure.
Description
The utility model relates to Industrial and Civil Engineering test specialized equipment, more definite what is said or talked about is that a cover test verification has been built the brick wall list brick shearing test device of single brick shearing strength of engineering brick setting mortar, is applicable to the check of new and old building thing body of wall mechanical properties such as public building, residential houses, industrial premises.
Existing technology is such:
The metope intensity detection has two kinds of crucial detections of mortar strength in detection of common brick label and the brick setting.Because the detection means of the existing science of common brick label, so correctly make the mechanical index of brick setting, can key is scientifically, correctly with brick setting in the existing intensity of mortar.
In the past rebound method test mortar strengths that adopt, promptly the hardness with mortar in the masonry mortar joint pushes away real its intensity more.This method is science not, because it can not reflect the influence of construction masonry quality to the masonry project mechanical property truly.Wall on, the hacking on the low side as the full end of mortar, mortar is long service time, and building method is incorrect etc., all will directly influence the mechanical property of masonry.Therefore the province that has has stipulated to stop using rebound method test mortar strength, avoids causing erroneous judgement.
In recent years, many accidents resulting from poor quality of projects had appearred in construction work.Use inferior materials and turn out substandard goods, barbarous construction causes poor workmanship, therefore the dispute case that takes place is of common occurrence.Connect layer enlarging on old buildings, because the masonry mechanical index is unclear, the original calculation index is often for supposition, or because of means of testing falls behind the measured result distortion, makes the design error, caused accident resulting from poor quality of projects.So having been pressed for science, the brick setting quality detects testing equipment and method.
The purpose of this utility model provides a kind of measurement accurate, and science is simple in structure by force, the equipment that practical value is higher, and this equipment key will be measured mortar strength, and other mechanical index can directly be calculated.
The purpose of this utility model can realize by following scheme:
Described single brick shearing test device includes the pull sensing apparatus, is connected with electronic scale on it.Steel disc in the anchor clamps is by being bolted on the body of wall list brick, one side of anchor clamps and pulling force sensor flexibly connect, the opposite side of pulling force sensor is fixed and is arranged in reaction frame one side of the geometric configuration of the same surface level of anchor clamps and opens in the slideway with the loading rotating disk with traveling nut, rotate the loading rotating disk and drive pulling force sensor, at this moment the electronic scale video data.
The purpose of this utility model can realize by following measure:
The relation of determining mortar strength and masonry strength in the masonry structure directly on body of wall single brick shear test find out mortar, determine mortar strength, utilize relevant formula to calculate the intensity index of brick setting, R=f(R1R2), Rj=f(R2), Rl=f(R2), Rw=f(R2).---bending and tensile strength, Rl---axial tensile strength, Rj---shearing strength that and concerns R--masonry strength, Rw between the shear resistance of the horizontal adhesive surface of single brick and the mortar strength full degree of mortar at bed joint.
Describe in detail below in conjunction with accompanying drawing embodiment:
Fig. 1 is an equipment synoptic diagram of the present utility model.
1 anchor clamps, 2 reaction frames, 3 loading rotating disks, 4 poles (flexible), 5 pulling force sensors, 6 electronic scales etc. are partly formed.During operation: adjust pole 4 after anchor clamps 1 are clamped single fragment of brick, make reaction frame 2 and anchor clamps 1 be in same horizontality, adjusting electronic scale 6 simultaneously, to make initial reading be zero.Manually at the uniform velocity rotate loading rotating disk 3, pulling force sensor 5 was in the tension duty and reached electronic scale 6 by the lead electric signal and shows load numerical value this moment.The value of reading and the full degree of mortar at bed joint of electronic scale 6 when noting fragment of brick and cutting up.Carry out a certain amount of test back by relevant calculation formula in the strength test of building brick, can calculate the existing intensity of mortar, can calculate the mechanical performance index of body of wall by relevant formula in the masonry standard, for the relevant works technician with reference to use.
Described single brick shearing test device includes the pull sensing apparatus, is connected with electronic scale on it.Steel disc in the anchor clamps is by being bolted on the one brick wall body, reaction frame one side that the same surface level of anchor clamps was fixed and be arranged in to the opposite side of one side of anchor clamps and pulling force sensor flexible connection pulling force sensor with traveling nut with the loading rotating disk is opened in the slideway, rotates the loading rotating disk and drives pulling force sensor electronic scale video data this moment.
The relation of determining mortar strength and masonry strength in the masonry structure directly on body of wall single brick shear test find out mortar, determine mortar strength, utilize relevant formula to calculate the intensity index of brick setting, R=f(R1R2), Rj=f(R2), Rl=f(R2), Rw=f(R2).And concern R--masonry strength, R2 between the shear resistance of the horizontal adhesive surface of single brick and the mortar strength full degree of mortar at bed joint and---have intensity, Rl---axial tensile strength, Rj---shearing strength now.
Brick wall list brick shearing test device partly is the off-the-shelf except that pulling force sensor, electronic scale, and remaining part all adopts common iron to make the light practicality of equipment.
Good effect of the present utility model: this method of testing can reflect construction factor truly to the impact of masonry project quality, as previously mentioned the factors such as full degree of mortar at bed joint. The mechanical property of masonry index of measuring is more scientific truer.
The device that this method is designed, rational in infrastructure, the raw material simple to operation wide cost of originating is lower.
Claims (1)
1, a kind of brick wall list brick shearing test device that is used to detect the shearing strength of brick setting mortar comprises anchor clamps 1 pulling force sensor, movable branching rod, loading rotating disk, reaction frame is characterized in that this device has a generation that is arranged in anchor clamps 1 same surface level and has a side of the reaction frame of geometric configuration to open slideway, the loading rotating disk laterally slides in slideway, pulling force sensor one side is connected with steel disc, and anchor clamps opposite side and loading rotating disk join and be fixed on simultaneously on the reaction frame; The lateral attitude of pulling force sensor is connected with electronic scale; Anchor clamps two sides are by bolt, and the bottom of loading rotating disk is by movable flexible pole of bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90213702 CN2084615U (en) | 1990-08-17 | 1990-08-17 | Single brick shearing tester for brick wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90213702 CN2084615U (en) | 1990-08-17 | 1990-08-17 | Single brick shearing tester for brick wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2084615U true CN2084615U (en) | 1991-09-11 |
Family
ID=4893147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90213702 Granted CN2084615U (en) | 1990-08-17 | 1990-08-17 | Single brick shearing tester for brick wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2084615U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100443879C (en) * | 2005-05-23 | 2008-12-17 | 郑州大学 | Double arm type tester for shear strength |
-
1990
- 1990-08-17 CN CN 90213702 patent/CN2084615U/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100443879C (en) * | 2005-05-23 | 2008-12-17 | 郑州大学 | Double arm type tester for shear strength |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |