Reinforced concrete bond slip testing device

Abstract

The invention relates to the technical field of concrete bonding slippage, in particular to a reinforced concrete bonding slippage testing device, and aims to solve the problems that a test piece is damaged and workers are difficult to inform in time, the reinforced concrete bonding slippage testing device comprises a base and a monitoring mechanism, and the upper surface of the base is fixedly connected with a mounting plate; and the left side surface of the mounting plate is fixedly connected with an industrial personal computer. Through cooperation of a servo motor, a rotating rod, a gear and a gear ring, a carrier plate can rotate through a sliding block, the carrier plate drives an ultrasonic pulse detector to rotate around a test piece, the surface of the test piece is detected, after it is detected that cracks are generated on the surface of the test piece, an alarm is started in cooperation with an industrial personal computer, and a worker is warned; the pressure sensor can detect the pressure when the deformed steel bar is pulled to move upwards, and can cooperate with the industrial personal computer to start the alarm and detect the bonding interface after the pressure is suddenly reduced, so that the test piece can be kept in a complete state when the test piece is tested, and the accuracy of test data is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of concrete bonding and slippage, in particular to a reinforced concrete bonding and slippage testing device. Background Art

[0002] Concrete bond slip refers to the slippage of steel bars in concrete when the bond between steel bars and concrete is insufficient or affected by certain factors in reinforced concrete structures. This phenomenon usually occurs at the interface between steel bars and concrete, especially in structures with greater stress. This slippage may lead to a decrease in the strength and stability of the structure.

[0003] Reference patent document announcement number CN221124265U A reinforced concrete bond slip test device, including a column arranged on a pedestal, an upper beam and a lower beam arranged on the column, the spacing between the upper beam and the lower beam is greater than the height of the concrete test block, and also includes a force transmission bracket arranged between the concrete test block and the upper beam, the force transmission bracket includes a bracket top plate whose upper end contacts the bottom of the upper beam for force transmission, the left and right ends of the bracket top plate are fixed with the bottom of the bracket side plates for contacting the top of the left and right ends of the concrete test block for force transmission, the bracket top plate is provided with a steel bar through hole for steel bars to pass through in the up and down direction, and a steel bar guide structure is provided between the steel bar through hole and the steel bar for keeping the steel bar in a vertical posture when the steel bar is stretched. The present invention solves the technical problem in the prior art that when the steel bar is pulled, the concrete around the surface of the steel bar is pressed on the steel bar by the upper beam, so that the steel bar test force environment is different from the real force environment of the steel bar.

[0004] Although the above scheme can perform bond slip tests on steel bars when used, the pulling of steel bars is used for simulation testing during the test. However, there is a lack of monitoring mechanisms for concrete and steel bars during the actual use of steel bars and concrete blocks. As a result, once the test piece is damaged during the test, it is difficult to notify the staff in time, resulting in inaccurate test data.

[0005] Based on this, the present invention designs a reinforced concrete bond slip testing device to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to provide a reinforced concrete bond slip test device to solve the problem in the above-mentioned background technology that it is difficult to notify the staff in time when the test piece is damaged.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a reinforced concrete bond slip test device, comprising a base and a monitoring mechanism, the upper surface of the base is fixedly connected to a mounting plate, the left side of the mounting plate is fixedly connected to an industrial computer, the upper surface of the base is fixedly connected to a mounting seat, the upper surface of the mounting seat is fixedly connected to a frame, the upper surface of the frame is fixedly installed with a hydraulic rod, the telescopic end of the hydraulic rod is fixedly connected to a connecting plate, the bottom surface of the connecting plate is fixedly connected to a U-shaped plate with holes, the inner wall of the U-shaped plate with holes is slidably connected to a pull rod, the top end of the pull rod is fixedly connected to a limiting plate, the bottom surface of the pull rod is fixedly connected to a connecting piece, a test piece is provided below the mounting seat, the top end of the test piece passes through the connecting piece and extends to the interior of the connecting piece, and the outer surface of the test piece is threadedly connected with a bolt.

[0008] The monitoring mechanism is arranged above the base, and the monitoring mechanism includes a gear ring installed on the upper surface of the base, a circular slide groove is opened on the upper surface of the gear ring, a slider is slidably connected to the inner wall of the circular slide groove, a carrier plate is fixedly connected to the upper surface of the slider, an ultrasonic pulse detector is fixedly connected to the upper surface of the carrier plate, a servo motor is fixedly connected to the upper surface of the carrier plate, a rotating rod is fixedly connected to the output end of the servo motor, a gear is fixedly connected to the bottom end of the rotating rod, the gear is meshed with the gear ring, two groups of pressure sensors are fixedly connected to the inner bottom wall of the U-shaped plate with holes, and an alarm is fixedly connected to the right side of the frame.

[0009] Preferably, a support seat is fixedly connected to the right side surface of the mounting plate, and a bottom surface of the support seat is fixedly connected to an upper surface of the base.

[0010] Preferably, the outer surface of the telescopic end of the hydraulic rod is fixedly connected to a first fixing seat, and the bottom surface of the first fixing seat is fixedly connected to the upper surface of the connecting plate.

[0011] Preferably, a T-shaped slide groove is provided on the right side surface of the mounting seat, a T-shaped baffle is slidably connected to the inner wall of the T-shaped slide groove, and a pull block is fixedly connected to the right side surface of the T-shaped baffle.

[0012] Preferably, a fixing ring is fixedly connected to the outer surface of the pull rod, and the bottom surface of the fixing ring is fixedly connected to the upper surface of the connecting piece.

[0013] Preferably, a second fixing seat is fixedly connected to the outer surface of the pull rod, and an upper surface of the second fixing seat is fixedly connected to the bottom surface of the limiting plate.

[0014] Preferably, a limiting groove is provided on the inner wall of the gear ring, a guide block is slidably connected to the inner wall of the limiting groove, and a stop block is fixedly connected to the right side surface of the guide block.

[0015] Preferably, the pressure sensors are arranged in a ring shape with equal distances.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: by providing a hydraulic rod, a connecting plate, a bolt and a connecting piece, the threaded steel on the test piece can be pulled, and then a slip test can be performed, and by utilizing the cooperation of a servo motor, a rotating rod, a gear and a gear ring, the carrier plate can be rotated through a slider, so that the carrier plate drives the ultrasonic pulse detector to rotate around the test piece, and the surface of the test piece is inspected. After cracks are detected on the surface of the test piece, an alarm is activated in cooperation with an industrial computer to warn the staff, and a pressure sensor can be used to detect the pressure in the process of pulling the threaded steel upward. After the pressure suddenly drops, the alarm can be activated in cooperation with the industrial computer, and the bonding interface can be inspected, thereby ensuring that the test piece can remain in good condition when being tested, and ensuring the accuracy of the test data. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the side view of the present invention;

[0020] Figure 3 It is a three-dimensional structural schematic diagram of a top-sectional view of the present invention;

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of a side sectional view of the connecting member of the present invention;

[0022] Figure 5 It is a three-dimensional structural schematic diagram of a front cross-sectional view of a T-shaped baffle of the present invention;

[0023] Figure 6 It is a schematic diagram of the partial structure of the gear ring of the present invention;

[0024] Figure 7 It is a schematic diagram of the three-dimensional structure of a partial cross-sectional view of the gear ring of the present invention.

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] 1. Base; 101. Mounting plate; 102. Industrial computer; 103. Support seat; 2. Mounting seat; 201. Connector; 202. Frame; 203. Hydraulic rod; 204. U-shaped plate; 205. Connecting plate; 206. Limiting plate; 207. Bolt; 208. Pull rod; 3. Monitoring mechanism; 301. Gear ring; 302. Circular slide; 303. Slider; 304. Carrier plate; 305. Alarm; 306. Pressure sensor; 307. Gear; 308. Servo motor; 309. Ultrasonic pulse detector; 310. Rotating rod; 311. Block; 312. Limiting groove; 313. Guide block; 4. First fixed seat; 5. T-shaped slide; 501. T-shaped baffle; 502. Pull block; 6. Test piece; 7. Second fixed seat; 8. Fixed ring. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] First embodiment

[0029] See also Figures 1 to 7 The present invention provides a technical solution: a reinforced concrete bonding slip test device, comprising a base 1 and a monitoring mechanism 3, the upper surface of the base 1 is fixedly connected with a mounting plate 101, the left side of the mounting plate 101 is fixedly connected with an industrial computer 102, the upper surface of the base 1 is fixedly connected with a mounting seat 2, the upper surface of the mounting seat 2 is fixedly connected with a frame 202, the upper surface of the frame 202 is fixedly installed with a hydraulic rod 203, the telescopic end of the hydraulic rod 203 is fixedly connected with a connecting plate 205, the bottom surface of the connecting plate 205 is fixedly connected with a U-shaped plate 204 with a hole, and the U-shaped plate 204 with a hole is fixedly connected with a connecting plate 205. The inner wall is slidably connected with a pull rod 208, the top of the pull rod 208 is fixedly connected with a limit plate 206, the bottom of the pull rod 208 is fixedly connected with a connecting piece 201, and a test piece 6 is provided below the mounting seat 2. The top of the test piece 6 passes through the connecting piece 201 and extends to the inside of the connecting piece 201. The outer surface of the test piece 6 is threadedly connected with a bolt 207, which can be connected to the test piece 6 through the bolt 207, and the test piece 6 can be limited by the mounting seat 2, so that the hydraulic rod 203 can pull the connecting piece 201 through the pull rod 208 and the limit plate 206, thereby performing a slip test on the test piece 6.

[0030] See also Figure 2The right side of the mounting plate 101 is fixedly connected with a support seat 103, and the bottom surface of the support seat 103 is fixedly connected to the upper surface of the base 1. The mounting plate 101 can be reinforced by the support seat 103 to prevent the industrial computer 102 from shaking during use.

[0031] See also Figure 1 The outer surface of the telescopic end of the hydraulic rod 203 is fixedly connected with a first fixed seat 4, and the bottom surface of the first fixed seat 4 is fixedly connected to the upper surface of the connecting plate 205. The connecting plate 205 can be reinforced by the first fixed seat 4 to increase the stability of the connecting plate 205 and prevent the connecting plate 205 from sliding.

[0032] See also Figure 5 A T-shaped slot 5 is provided on the right side of the mounting seat 2, a T-shaped baffle 501 is slidably connected to the inner wall of the T-shaped slot 5, and a pull block 502 is fixedly connected to the right side of the T-shaped baffle 501. Through the cooperation of the T-shaped slot 5 and the T-shaped baffle 501, the specimen 6 can be blocked, so that the force on the specimen 6 is more uniform.

[0033] See also Figure 4 The outer surface of the pull rod 208 is fixedly connected with a fixing ring 8, and the bottom surface of the fixing ring 8 is fixedly connected to the upper surface of the connecting piece 201. The fixing ring 8 can reinforce the connecting piece 201, improve the load capacity of the connecting piece 201, and prevent the connecting piece 201 from falling off during use.

[0034] See also Figure 4 The outer surface of the pull rod 208 is fixedly connected to a second fixed seat 7, and the upper surface of the second fixed seat 7 is fixedly connected to the bottom surface of the limiting plate 206. The second fixed seat 7 can be used to reinforce the connection between the pull rod 208 and the limiting plate 206 to increase the stability of the connection and avoid separation of the limiting plate 206 and the pull rod 208.

[0035] Second embodiment

[0036] The monitoring mechanism 3 is arranged above the base 1, and the monitoring mechanism 3 includes a gear ring 301 installed on the upper surface of the base 1, and a circular slide groove 302 is provided on the upper surface of the gear ring 301, and a slider 303 is slidably connected to the inner wall of the circular slide groove 302, and a carrier plate 304 is fixedly connected to the upper surface of the slider 303, and an ultrasonic pulse detector 309 is fixedly connected to the upper surface of the carrier plate 304, and a servo motor 308 is fixedly connected to the upper surface of the carrier plate 304, and a rotating rod 310 is fixedly connected to the output end of the servo motor 308, and a gear 307 is fixedly connected to the bottom end of the rotating rod 310, and the gear 307 is meshed with the gear ring 301, and the inner bottom wall of the U-shaped plate 204 with a hole is fixedly connected to two A pressure sensor 306 is assembled, and an alarm 305 is fixedly connected to the right side of the frame 202. Through the cooperation of the servo motor 308, the rotating rod 310 and the gear 307, the gear 307 can drive the carrier 304 and the slider 303 to move, and then the carrier 304 drives the ultrasonic pulse detector 309 to rotate, so that the ultrasonic pulse detector 309 can detect the test piece 6 in multiple directions, ensuring that the staff is notified in time after cracks appear on the surface of the test piece 6, and in the process of the pulling test, the pressure sensor 306 can sense the tension on the threaded steel of the test piece 6, and can transmit the signal in time after the bonding interface is damaged.

[0037] See also Figure 7 A limiting groove 312 is provided on the inner wall of the gear ring 301, and a guide block 313 is slidably connected to the inner wall of the limiting groove 312, and a stopper 311 is fixedly connected to the right side of the guide block 313. Through the cooperation of the limiting groove 312 and the guide block 313, the slider 303 can be limited to prevent the slider 303 from moving out of the gear ring 301, thereby ensuring that the carrier plate 304 moves more stably.

[0038] See also Figure 4 The pressure sensors 306 are arranged in a circular shape with equal distances. By arranging the pressure sensors 306 in a circular shape, the pressure on the pressure sensors 306 can be made more balanced, thereby improving the accuracy of detection.

[0039] The implementation principle of a reinforced concrete bonding slip test device according to an embodiment of the present application is as follows: when in use, the pull block 502 is pulled to move the T-shaped baffle 501 out of the T-shaped slide groove 5, the test piece 6 is placed under the mounting seat 2, and the threaded steel is passed through the mounting seat 2, and then the connector 201 is lowered to allow the threaded steel to enter the interior of the connector 201, and then the threaded steel is positioned by the bolt 207, and the hydraulic rod 203 is started to drive the connecting plate 205 and the U-shaped plate 204 to move upward, and the pull rod 208 is pulled through the limit plate 206, so that the pull rod 208 pulls the connector 201, and the connector 201 pulls the threaded steel to move upward, and a pull-out test is performed on the test piece 6. At the same time, the pressure sensor 306 can detect the pulling force applied by the pull rod 208 to the test piece 6, and when the bonding interface is damaged When the test piece 6 is damaged, the rebar moves upward significantly, and the pressure sensed by the pressure sensor 306 drops. At this time, the pressure sensor 306 sends a signal to the industrial computer 102, so that the industrial computer 102 activates the alarm 305 to warn the staff that the test piece 6 is damaged. In the test process, by starting the servo motor 308, the servo motor 308 drives the gear 307 to rotate. The gear 307 cooperates with the gear ring 301 to push the carrier plate 304 and the slider 303 to slide inside the circular slide groove 302, so that the ultrasonic pulse detector 309 detects multiple surfaces of the test piece 6. After detecting cracks on the surface of the test piece 6, the signal can be transmitted to the industrial computer 102, and the industrial computer 102 activates the alarm 305 to warn the staff, thereby ensuring the integrity of the test piece 6 during the detection process.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0041] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A reinforced concrete bond slip test device, comprising a base (1) and a monitoring mechanism (3), characterized in that: The upper surface of the base (1) is fixedly connected to a mounting plate (101), the left side of the mounting plate (101) is fixedly connected to an industrial computer (102), the upper surface of the base (1) is fixedly connected to a mounting seat (2), the upper surface of the mounting seat (2) is fixedly connected to a frame (202), the upper surface of the frame (202) is fixedly mounted with a hydraulic rod (203), the telescopic end of the hydraulic rod (203) is fixedly connected to a connecting plate (205), and the bottom surface of the connecting plate (205) is fixedly connected to a connecting plate (205). A U-shaped plate (204) with a hole is connected, the inner wall of the U-shaped plate (204) with a hole is slidably connected to a pull rod (208), the top of the pull rod (208) is fixedly connected to a limit plate (206), the bottom surface of the pull rod (208) is fixedly connected to a connecting piece (201), a test piece (6) is provided below the mounting seat (2), the top of the test piece (6) passes through the connecting piece (201) and extends to the inside of the connecting piece (201), and the outer surface of the test piece (6) is threadedly connected to a bolt (207); The monitoring mechanism (3) is arranged above the base (1), and comprises a toothed ring (301) mounted on the upper surface of the base (1), a circular slide groove (302) is provided on the upper surface of the toothed ring (301), a slider (303) is slidably connected to the inner wall of the circular slide groove (302), a carrier plate (304) is fixedly connected to the upper surface of the slider (303), and an ultrasonic pulse detector (309) is fixedly connected to the upper surface of the carrier plate (304), A servo motor (308) is fixedly connected to the upper surface of the carrier plate (304); a rotating rod (310) is fixedly connected to the output end of the servo motor (308); a gear (307) is fixedly connected to the bottom end of the rotating rod (310); the gear (307) is meshed with the gear ring (301); two groups of pressure sensors (306) are fixedly connected to the inner bottom wall of the perforated U-shaped plate (204); and an alarm (305) is fixedly connected to the right side of the frame (202).

2. A reinforced concrete bond slip test device according to claim 1, characterized in that: The right side surface of the mounting plate (101) is fixedly connected to a support seat (103), and the bottom surface of the support seat (103) is fixedly connected to the upper surface of the base (1).

3. A reinforced concrete bond slip test device according to claim 1, characterized in that: The outer surface of the telescopic end of the hydraulic rod (203) is fixedly connected to a first fixing seat (4), and the bottom surface of the first fixing seat (4) is fixedly connected to the upper surface of the connecting plate (205).

4. A reinforced concrete bond slip test device according to claim 1, characterized in that: A T-shaped slide groove (5) is provided on the right side surface of the mounting seat (2), a T-shaped baffle (501) is slidably connected to the inner wall of the T-shaped slide groove (5), and a pull block (502) is fixedly connected to the right side surface of the T-shaped baffle (501).

5. A reinforced concrete bond slip test device according to claim 1, characterized in that: A fixing ring (8) is fixedly connected to the outer surface of the pull rod (208), and the bottom surface of the fixing ring (8) is fixedly connected to the upper surface of the connecting piece (201).

6. A reinforced concrete bond slip test device according to claim 1, characterized in that: The outer surface of the pull rod (208) is fixedly connected to a second fixing seat (7), and the upper surface of the second fixing seat (7) is fixedly connected to the bottom surface of the limiting plate (206).

7. A reinforced concrete bond slip test device according to claim 1, characterized in that: The inner wall of the gear ring (301) is provided with a limiting groove (312), the inner wall of the limiting groove (312) is slidably connected with a guide block (313), and the right side surface of the guide block (313) is fixedly connected with a stopper (311).

8. The reinforced concrete bond slip test device according to claim 1, characterized in that: The pressure sensors (306) are arranged in a ring shape with equal distances.

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