CN110672511A - Fiber cloth-concrete interface bonding strength detection device and detection method - Google Patents
Fiber cloth-concrete interface bonding strength detection device and detection method Download PDFInfo
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- CN110672511A CN110672511A CN201910954652.1A CN201910954652A CN110672511A CN 110672511 A CN110672511 A CN 110672511A CN 201910954652 A CN201910954652 A CN 201910954652A CN 110672511 A CN110672511 A CN 110672511A
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- fiber cloth
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- 238000001514 detection method Methods 0.000 title claims abstract description 46
- 239000000835 fiber Substances 0.000 title claims abstract description 46
- 239000004567 concrete Substances 0.000 title claims abstract description 30
- 238000004873 anchoring Methods 0.000 claims abstract description 35
- 239000004744 fabric Substances 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 claims description 2
- 239000011150 reinforced concrete Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/04—Measuring adhesive force between materials, e.g. of sealing tape, of coating
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
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Abstract
The invention discloses a fiber cloth-concrete interface bonding strength detection device and a detection method, wherein the detection device comprises a pipe body and a tubular cutter sleeved in the pipe body, the tubular cutter has the freedom degree of clockwise or anticlockwise rotation, the cutting end of the tubular cutter is flush with an opening at the bottom of the pipe body, a force application device is arranged on the opening at the top of the pipe body, the force application end of the force application device is detachably connected with an anchoring piece, and the anchoring piece is positioned in an inner cavity of the pipe body and is flush with the opening at the bottom of the pipe body; the detection method comprises the following steps: installing a detection device, alternately moving the handle clockwise and anticlockwise in the arc-shaped notch, and cutting the fiber cloth to be detected by the tubular cutter on the fiber cloth; and finally, working the force application device to detect the bonding strength of the interface of the fiber cloth and the concrete. The detection device is more portable and light, and the detection method is simple, quick and stable.
Description
Technical Field
The invention belongs to the technical field of concrete structure detection, and particularly relates to a fiber cloth-concrete interface bonding strength detection device and a detection method.
Background
In the field of building and civil engineering, fiber cloth is adhered to the outside of the reinforced concrete, so that the fiber cloth and the concrete are stressed together to improve the structural performance, and the reinforced concrete is widely applied in the industry. The bonding performance between the fiber cloth and the concrete interface is a key technical parameter of the reinforcing effect of the concrete structure, and directly influences the overall performance of the reinforced concrete structure. At present, the bonding strength of an interface is measured mainly by measuring the tensile strength between fiber cloth and concrete in engineering, but the existing detection device has the defects of complex structure, higher cost and inaccurate detection result caused by difficulty in ensuring that the tensile stress direction is vertical to a detection surface.
Disclosure of Invention
The invention aims to provide a fiber cloth-concrete interface bonding strength detection device which comprises a pipe body and a tubular cutter sleeved in the pipe body, wherein the tubular cutter has the freedom degree of clockwise or anticlockwise rotation, the cutting end of the tubular cutter is flush with an opening at the bottom of the pipe body, a force application device is arranged on the opening at the top of the pipe body, the force application end of the force application device is detachably connected with an anchoring piece, and the anchoring piece is positioned in an inner cavity of the pipe body and is flush with the opening at the bottom of the pipe body.
As a further description of the above technical solution:
the top end of the side wall of the tubular cutter is symmetrically provided with a pair of handles, the handles are horizontally arranged, the side wall of the tube body is provided with a pair of arc-shaped notches corresponding to the handles, and the handles penetrate through the arc-shaped notches and have freedom degrees moving horizontally along the arc-shaped notches.
As a further description of the above technical solution:
the tubular cutter can move upwards to enable the cutting end of the tubular cutter to be retracted into the inner cavity of the tube body.
As a further description of the above technical solution:
still seted up a pair of L type block mouth on the body lateral wall, L type block mouth corresponds and is located the arc breach top, and the horizontal segment of L type block mouth parallels with the arc breach, and the vertical section intercommunication of L type block mouth communicates to the arc breach, and the handle can remove between L type block mouth and arc breach.
As a further description of the above technical solution:
the anchoring piece and the force application device are both positioned on the central axis of the pipe body.
As a further description of the above technical solution:
the force application device is connected with a force application rod, the force application rod extends along the length direction of the pipe body, and the force application rod is detachably connected with the anchoring piece.
The detection device of the invention mainly comprises the following components: (1) the anchoring part is arranged for positioning on the surface to be detected, namely the anchoring part is firstly installed and then the rest part of the device is connected, and the central axes of the pipe body and the surface to be detected are determined by the anchoring part, so that the central axes of the pipe body, the force application device, the tubular cutter, the anchoring part and the surface to be detected are the same; (2) set up the tubulose cutter and be used for cutting out the circular shape on detecting the face of waiting to detect, avoided among the prior art square to detect the drawback separately that the face brought, the tubulose cutter only needs clockwise and anticlockwise slightly rotation in turn can accomplish the cutting, cutting state is stable and easy and simple to handle, the tubulose cutter still can upwards move make its cutting end withdraw to the body inner chamber, when having protected the cutting edge, can also improve factor of safety, prevent that the tubulose cutter from accidentally injuring operating personnel when not using.
The invention also aims to provide a detection method of the fiber cloth-concrete interface bonding strength detection device, which comprises the steps of firstly, bonding an anchoring piece on the fiber cloth, connecting a force application rod with the anchoring piece, and connecting the anchoring piece with the rest part of the detection device through the force application rod; then, alternately moving a lifting handle clockwise and anticlockwise in the arc-shaped notch, wherein the lifting handle drives a tubular cutter to rotate, and the tubular cutter cuts the fiber cloth to be detected on the fiber cloth; and finally, working the force application device to detect the bonding strength of the interface of the fiber cloth and the concrete.
The detection method can directly detect the bonding strength of the fiber cloth and the concrete interface on site, realizes that the force application rod is vertical to the detection surface during detection, has completely independent detection area and the surrounding fiber cloth, and has higher stability and more accurate and reliable result.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic perspective view of a device for detecting the bonding strength of a fiber cloth-concrete interface in example 1;
FIG. 2 is an enlarged schematic view of FIG. 1 at the arcuate notch;
FIG. 3 is a schematic perspective view of the tubular cutter in example 1;
FIG. 4 is a perspective view showing a state where a pipe body and a force applying means are connected in embodiment 1;
FIG. 5 is a longitudinal sectional view of the fiber cloth-concrete interface bonding strength measuring apparatus in example 1;
FIG. 6 is a schematic view showing the operation of the bonding strength detecting apparatus for a fiber cloth-concrete interface in example 1;
FIG. 7 is a schematic view showing the connection of the force application rod, the force application means and the annular link in embodiment 2;
FIG. 8 is a schematic perspective view of an anchor member in embodiment 2;
labeled as: 1. a pipe body; 11. an arc-shaped notch; 12. an L-shaped clamping opening; 2. a force application device; 21. a force application rod; 211. a clamping block; 22. an anchoring member; 221. a chute; 222. a clamping groove; 3. a tubular cutter; 31. a handle; 4. an annular connector; 5. fiber cloth; 6. a concrete beam structure.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. These examples are intended to illustrate the invention and are not intended to limit the scope of the invention. The structural features of the present invention will now be described in detail with reference to the accompanying drawings.
Example 1
Referring to fig. 1, the present embodiment provides a fiber cloth-concrete interface bonding strength detection device, the main components include a pipe body 1, a force application device 2 and a tubular cutter 3, the force application device 2 is connected to the top opening of the pipe body 1 through an annular connecting member 4 in a sealing manner, the tubular cutter 3 is sleeved in the pipe body 1, the force application device 2 is located above the tubular cutter 3, axial leads of the pipe body 1, the force application device 2 and the tubular cutter 3 are the same, referring to fig. 3, a force application space of the force application device 2 is formed by an inner cavity of the pipe body 1 and an inner cavity of the tubular cutter 3.
Referring to fig. 1, the tubular cutter 3 has a degree of freedom of clockwise or counterclockwise rotation, and in addition, the tubular cutter 3 can move upward to retract the cutting end thereof into the inner cavity of the tube body 1, and can also move downward to make the cutting end thereof flush with the bottom opening of the tube body 1. The force application end of the force application device 2 is detachably connected with an anchoring part 22, and the anchoring part 22 is positioned in the inner cavity of the tube body 1 and is flush with the bottom opening of the tube body 1.
The device of the embodiment mainly comprises the following components:
(1) the anchoring part 22 is arranged for positioning on the surface to be detected, namely the anchoring part 22 is firstly installed and then the rest part of the device is connected, and the anchoring part 22 is used for determining the central axes of the pipe body 1 and the surface to be detected, so that the central axes of the pipe body 1, the force application device 2, the tubular cutter 3, the anchoring part 22 and the surface to be detected are the same;
(2) the tubular cutter 3 is used for cutting a circular surface to be detected on the detection surface, so that the defects caused by a square surface to be detected in the prior art are overcome, the tubular cutter 3 can complete cutting only by slightly rotating clockwise and anticlockwise alternately, the cutting state is stable, the operation is simple and convenient, the tubular cutter 3 can also move upwards to enable the cutting end of the tubular cutter to be retracted into the inner cavity of the tube body 1, the cutting edge is protected, the safety coefficient can be improved, and the tubular cutter 3 is prevented from accidentally injuring operators when not in use;
the detection device of the embodiment can be used for detecting the bonding strength between the fiber cloth 5 and the concrete beam structure 6, is more portable and lighter compared with the existing detection device, and can directly detect the bonding strength on site; the force application rod is perpendicular to the detection surface, the detection area is completely independent from the surrounding fiber cloth, and the detection result is more accurate and reliable. The force exerting device 2 in this embodiment may preferably be a digital display hydraulic jack equipped with a digital display (not shown in the drawings of the specification).
Referring to fig. 2, the output end of the force application device 2 is connected with a force application rod 21, the force application rod 21 extends along the length direction of the force application space, the end part of the force application rod 21 is connected with an anchoring piece 22, and the force application rod 21 and the anchoring piece 22 are detachably connected. The anchoring member 22 is located in the inner cavity of the tube body 1 and is flush with the bottom opening of the tube body 1.
Referring to fig. 1, 2 and 3, the connection mode of the tubular cutter 3 and the pipe body 1 is as follows: the top end of the side wall of the tubular cutter 3 is symmetrically provided with a pair of handles 31, the handles 31 are horizontally arranged, the side wall of the pipe body 1 is provided with a pair of arc-shaped notches 11 corresponding to the handles 31, the handles 31 penetrate through the arc-shaped notches 11 and have freedom degrees of horizontal movement along the arc-shaped notches 11, in the embodiment, the movable angle of the movable angle is within 30 degrees, at the moment, the cutting edge of the tubular cutter 3 is flush with one end, far away from the force application device 2, of the pipe body 1, and the tubular cutter 3 is in a working state and can.
Referring to fig. 2, a pair of L-shaped engaging openings 12 are further formed in the side wall of the pipe body 1, the L-shaped engaging openings 12 are correspondingly located above the arc-shaped notches 11, the horizontal sections of the L-shaped engaging openings 12 are parallel to the arc-shaped notches 11, the vertical sections of the L-shaped engaging openings 12 are communicated to the arc-shaped notches 11, after the tubular cutter 3 is completely cut, the handle 31 is lifted upwards, so that the handle passes through the vertical sections of the L-shaped engaging openings 12 and enters the horizontal sections of the L-shaped engaging openings 12 from the arc-shaped notches 11, and at the moment, the cutting edges of the tubular cutter 3 are lifted upwards and retracted into the pipe body.
Example 2
Referring to fig. 8, on the basis of embodiment 1, the present embodiment is different in the detachable connection manner of the force application rod 21 and the anchor 22, which is as follows: the end part of the outer wall of the force application rod 21 extends outwards to form four clamping blocks 211, the connecting line of the clamping blocks 211 can form a cross structure, the top end of the inner wall of the anchoring member 22 is embedded with a sliding groove 221 matched with the clamping blocks 211, the inner wall of the anchoring member 22 is also embedded with a clamping groove 222 with an annular structure, the bottom end of the sliding groove 221 extends to the clamping groove 222, and the diameter of the clamping groove 222 is larger than that of a circumscribed circle of the cross structure.
Therefore, in this embodiment, the connection method of the force application rod 21 and the anchoring member 22 is as follows: the engaging piece 211 slides into the sliding groove 221 until reaching the engaging groove 222, and then the force applying rod 21 is rotated so that the engaging piece 211 on the force applying rod 21 and the sliding groove 221 on the anchor 22 are dislocated, thereby connecting the force applying rod 21 and the anchor 22 together.
Example 3
Referring to fig. 6 and 7, on the basis of embodiment 1 or embodiment 2, the present embodiment provides a detection method of a fiber cloth-concrete interface bonding strength detection apparatus, including the following operation steps:
step (1) installing a detection device on the fiber cloth 5
Bonding the anchoring piece 22 on the fiber cloth 5, connecting the force application rod 21 with the anchoring piece 22, and integrally connecting the anchoring piece 22 with the detection device through the force application rod 21, wherein at the moment, the tube body 1 extends to the surface of the fiber cloth 5, the tube body 1 plays a role in integrally fixing, and meanwhile, the whole body can be kept vertical to the detection surface;
step (2) of cutting the part to be measured on the fiber cloth 5
Moving the handle 31 into the arc-shaped notch 11 from the L-shaped clamping opening 12, enabling the cutting end of the tubular cutter 3 to be flush with the end part of the pipe body 1 and the bottom end of the anchoring part 22, and moving the handle 31 along the arc-shaped notch 11 clockwise and anticlockwise in an alternating manner, so that the tubular cutter 3 rotates and cuts a piece of circular fiber cloth to be detected on the fiber cloth 5, wherein the circle center of the fiber cloth to be detected is located on the central axis of the pipe body 1;
and (3) working detection of the force application device 2 detects the bonding strength of the fiber cloth and the concrete interface, and data recording is carried out.
Claims (7)
1. The utility model provides a fibre cloth-concrete interface bonding strength detection device, a serial communication port, including body (1) and tubulose cutter (3) of cup jointing in body (1), tubulose cutter (3) have clockwise or anticlockwise rotation's degree of freedom, the cutting end and body (1) bottom opening looks parallel and level of tubulose cutter (3), be equipped with force application device (2) on body (1) open-top, force application device (2) application of force end detachably are connected with anchor assembly (22), anchor assembly (22) are located body (1) inner chamber and are parallel and level with body (1) bottom opening looks parallel and level.
2. The fiber cloth-concrete interface bonding strength detection device according to claim 1, characterized in that: the tubular cutter (3) is characterized in that a pair of handles (31) is symmetrically arranged at the top end of the side wall of the tubular cutter (3), the handles (31) are horizontally arranged, a pair of arc-shaped notches (11) corresponding to the handles (31) are formed in the side wall of the pipe body (1), and the handles (31) penetrate through the arc-shaped notches (11) and have the freedom degree of horizontal movement along the arc-shaped notches (11).
3. The fiber cloth-concrete interface bonding strength detection device according to claim 2, characterized in that: the tubular cutter (3) can move upwards to enable the cutting end to be retracted into the inner cavity of the tube body (1).
4. The fiber cloth-concrete interface bonding strength detection device according to claim 3, characterized in that: still seted up a pair of L type block mouth (12) on body (1) lateral wall, L type block mouth (12) are corresponding to be located arc breach (11) top, and the horizontal segment of L type block mouth (12) parallels with arc breach (11), and the vertical section of L type block mouth (12) communicates to arc breach (11), and handle (31) can move between L type block mouth (12) and arc breach (11).
5. The fiber cloth-concrete interface bonding strength detection device according to claim 1, characterized in that: the anchoring piece (22) and the force application device (2) are both positioned on the central axis of the pipe body (1).
6. The fiber cloth-concrete interface bonding strength detection device according to claim 1, characterized in that: the force application device (2) is connected with a force application rod (21), the force application rod (21) extends along the length direction of the pipe body (1), and the force application rod (21) is detachably connected with the anchoring piece (22).
7. The method for detecting the bonding strength of the fiber cloth-concrete interface according to any one of claims 1 ~ 6 is characterized by comprising the steps of firstly bonding the anchoring piece (22) on the fiber cloth (5), connecting the force application rod (21) with the anchoring piece (22), connecting the anchoring piece (22) with the rest part of the detection device through the force application rod (21), then, moving the handle (31) in the arc-shaped notch (11) in a clockwise and anticlockwise alternating mode, driving the tubular cutter (3) to rotate by the handle (31), cutting the fiber cloth to be detected on the fiber cloth (5) by the tubular cutter (3), and finally, working the force application device (2) to detect the bonding strength of the fiber cloth and the concrete interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910954652.1A CN110672511A (en) | 2019-10-09 | 2019-10-09 | Fiber cloth-concrete interface bonding strength detection device and detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910954652.1A CN110672511A (en) | 2019-10-09 | 2019-10-09 | Fiber cloth-concrete interface bonding strength detection device and detection method |
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| CN110672511A true CN110672511A (en) | 2020-01-10 |
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| CN201910954652.1A Pending CN110672511A (en) | 2019-10-09 | 2019-10-09 | Fiber cloth-concrete interface bonding strength detection device and detection method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113758865A (en) * | 2021-09-08 | 2021-12-07 | 江苏徐工工程机械研究院有限公司 | Soil adhesion testing device and testing method |
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- 2019-10-09 CN CN201910954652.1A patent/CN110672511A/en active Pending
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| US20100186494A1 (en) * | 2009-01-23 | 2010-07-29 | Sdi Limited | Apparatus and method to determine the adhesive strength of materials |
| CN204575514U (en) * | 2015-03-31 | 2015-08-19 | 沈阳工业大学 | Fiber cloth construction cohesive strength pick-up unit |
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