Reinforced concrete performance detection device

Abstract

The invention discloses a reinforced concrete performance detection device, and belongs to the field of reinforced concrete performance detection.The reinforced concrete performance detection device comprises a base, a reaction frame, an oil cylinder, a pressure plate, a detection box, a concrete compression resistance detection block, a wedge block, a reinforcing steel bar tensile resistance detection device and a reinforcing steel bar bending resistance pressing rod, the reaction frame is installed on the base, the oil cylinder is installed at the top end of the reaction frame, and sliding grooves are formed in the two ends of the base; a pair of wedge blocks slide in the two sliding grooves, guide surfaces are arranged on the wedge blocks, the guide surfaces of the two wedge blocks are oppositely arranged, inclined surfaces are arranged at the two ends of the pressure plate, and the inclined surfaces slide on the guide surfaces; the detection box is placed at the middle top of the base; the concrete compression resistance detection block is mounted on the pressure plate and extends into the detection box; a reinforcing steel bar tensile detection device is arranged on one side of the wedge block; the steel bar anti-bending pressing rod is arranged at the bottom end of the pressure plate. According to the invention, concrete compression resistance detection and steel bar tensile and bending resistance detection can be carried out on reinforced concrete at the same time; a high-temperature environment is provided, and the performance detection of reinforced concrete under the superposition of various factors is simulated.

Description

Technical Field

[0001] The invention belongs to the field of reinforced concrete performance detection, and in particular relates to a reinforced concrete performance detection device. Background Art

[0002] Reinforced concrete refers to a composite material formed by adding steel mesh, steel plate or fiber to concrete to work together to improve the mechanical properties of concrete. The performance of reinforced concrete is related to the construction quality of the entire building. In the prior art, concrete is tested for compressive properties, steel bars are tested for tensile and bending properties, and steel bars and concrete bonding properties are tested. However, the prior art only tests a single item. When a building is actually damaged, it is not a single factor that affects the reinforced concrete. The effect of multiple factors affecting reinforced concrete at the same time is greater than the effect of multiple single factors simply superimposed on each other. It is urgent for those skilled in the art to propose a performance testing device that can simulate the effects of multiple factors on reinforced concrete when a building is actually damaged. Summary of the invention

[0003] In view of this, the present invention provides a reinforced concrete performance detection device to solve the above-mentioned problem.

[0004] In order to achieve the above object, the present invention adopts the following technical solution:

[0005] A reinforced concrete performance testing device, comprising: a base, a reaction frame, an oil cylinder, a pressure plate, a testing box, a concrete compression test block, a wedge block, a steel bar tensile test device and a steel bar bending pressure rod, the reaction frame is installed on the base, a plurality of oil cylinders are installed on the top of the reaction frame, two ends of the base are provided with slide grooves, a pair of wedge blocks slide in two slide grooves respectively, the wedge blocks are provided with guide surfaces, the guide surfaces of the two wedge blocks are arranged oppositely, and two ends of the pressure plate are provided with inclined surfaces, the guide surfaces are adapted to the inclined surfaces, and the inclined surfaces slide on the guide surfaces ; The detection box is placed at the top of the middle part of the base, between the wedge blocks, and the reinforced concrete sample is provided with a first steel bar and a second steel bar; the concrete compression test block is installed on the pressure plate and extends into the detection box for compressive testing of the concrete; steel bar tensile testing devices are provided on opposite sides of the two wedge blocks, and the steel bar tensile testing devices extend into the detection box towards each other and are fixedly connected to the first steel bar for tensile testing of the steel bar; the steel bar bending compression rod is provided at the bottom end of the pressure plate and extends into the detection box for bending testing of the steel bar.

[0006] Furthermore, the steel bar tensile test device includes a pull rod, a tensile gauge and a pulling sleeve. The tensile gauge is installed on the side wall of the wedge block. One end of the pull rod is fixedly connected to the tensile gauge, and the other end extends into the test box and is fixedly connected to the pulling sleeve. The pulling sleeve is fixedly connected to the end of the first steel bar.

[0007] Furthermore, limiting parts are arranged on both sides of the wedge block, limiting sliding grooves are arranged on both side walls of the sliding groove, the limiting parts are matched with the limiting sliding grooves, and the limiting parts are slidably connected in the limiting sliding grooves.

[0008] Furthermore, it also includes a pin connection block, the concrete compression test block passes through the pressure plate, and the concrete compression test block is connected to the pressure plate through the pin connection block; a first pressure gauge is arranged between the pin connection block and the concrete compression test block for monitoring the pressure on the reinforced concrete sample block.

[0009] Furthermore, an arc-shaped steel bar hoop is provided at the bottom end of the steel bar anti-bending compression rod, and the arc-shaped steel bar hoop is used to abut the end of the second steel bar to perform steel bar bending resistance detection; a second pressure gauge is provided between the steel bar anti-bending compression rod and the pressure plate, and the second pressure gauge is used to monitor the pressure of the steel bar anti-bending compression rod on the end of the second steel bar.

[0010] Furthermore, it also includes a steel bar support hoop and a support rod, wherein the support rod is located on one side of the reinforced concrete sample block, the second steel bar passes through the steel bar support hoop, and the steel bar support hoop is used to cooperate with the steel bar bending resistance rod and the arc-shaped steel bar hoop to perform steel bar bending resistance detection.

[0011] Furthermore, it also includes a heating device for providing a high temperature environment for the detection box; the heating device includes an electric heating device and a thermocouple, the electric heating device is installed on the inner wall of the detection box, and the thermocouple is installed on the top wall of the detection box.

[0012] Furthermore, a high-temperature glass window is provided on the front side wall of the detection box for observing the test conditions inside the detection box.

[0013] Furthermore, a limiting block is provided at the bottom of the detection box for limiting the position of the reinforced concrete sample.

[0014] Furthermore, it also includes a displacement monitoring device, which includes a first displacement meter, a second displacement meter and a third displacement meter. A pair of the first displacement meters are installed at the top of the base, respectively located on one side of the two wedge blocks; the second displacement meter and the third displacement meter are installed at the top of the detection box, respectively aligned with the concrete compression detection block and the steel bar bending compression rod.

[0015] The beneficial effects of the present invention are:

[0016] The present invention provides pressure by the oil cylinder on the reaction frame, and the oil cylinder pushes the pressure plate downward, and through the force transmission of the pin connection block, the concrete compression test block extends into the test box to perform the compression test of the concrete; the steel bar bending resistance pressure rod extends into the test box to apply pressure to the end of the second steel bar to perform the bending test of the steel bar; at the same time, the inclined surfaces at both ends of the pressure plate slide on the guide surface of the wedge block, thereby pushing the two wedge blocks to slide toward both ends on the base, and simultaneously providing tension to the first steel bar through the pull rod and the pulling sleeve to perform the tensile test of the steel bar; when the concrete fails first in the compression test, the pin connection block is pulled out, so that the concrete compression test block does not continue to apply pressure to the sample block, and the pressure plate continues to push the wedge blocks to both ends to perform the tensile test of the steel bar, or continues to push the steel bar bending resistance pressure rod to continue to perform the bending test on the end of the second steel bar;

[0017] The present invention can realize one or two tests of concrete compression test, steel bar tension and compression test by disassembling pin connection, tie rod and steel bar bending and compression rod;

[0018] The present invention also provides a high temperature environment through an electric heating device to further simulate the performance of reinforced concrete in a high temperature environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0020] Figure 1 The present invention is a front view of a reinforced concrete performance testing device.

[0021] Figure 2 It is the left view of a reinforced concrete performance testing device.

[0022] Figure 3 The figure is a top view of a reinforced concrete performance testing device.

[0023] Figure 4 for Figure 1 AA section view in.

[0024] Figure 5 for Figure 4 BB section view in.

[0025] Figure 6 for Figure 4 CC section view in.

[0026] Among them, in the figure:

[0027] 10-base, 11-slide, 12-limit slide, 20-reaction frame, 30-oil cylinder, 40-pressure plate, 41-inclined surface, 50-testing box, 51-high temperature glass window, 52-limiting block, 60-concrete compression test block, 70-wedge block, 71-guide surface, 72-limiting part, 81-pull rod, 82-tensile force gauge, 83-drawing sleeve, 90-steel bending compression rod, 91-arc steel bar hoop, 100-steel concrete sample, 101-first steel bar, 102-second steel bar, 110-pin connection block, 120-first pressure gauge, 130-second pressure gauge, 140-steel support hoop, 150-support rod, 161-electric heating device, 162-thermocouple, 171-first displacement meter, 172-second displacement meter, 173-third displacement meter. DETAILED DESCRIPTION

[0028] 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.

[0029] Refer to the attached Figure 1-6 As shown, the present invention provides a reinforced concrete performance detection device, including: a base 10, a reaction frame 20, an oil cylinder 30, a pressure plate 40, a detection box 50, a concrete compression detection block 60, a wedge block 70, a steel bar tensile detection device and a steel bar bending pressure rod 90, the reaction frame 20 is installed on the base 10, and a plurality of oil cylinders 30 are installed on the top of the reaction frame 20 and are connected to an external hydraulic pump device; two ends of the base 10 are provided with a slide groove 11, a pair of wedge blocks 70 slide in the two slide grooves 11 respectively, and the wedge blocks 70 are provided with a guide surface 71, and the guide surfaces 71 of the two wedge blocks 70 are arranged opposite to each other, and the two ends of the pressure plate 40 are provided with an inclined surface 41, and the guide surface 71 and the inclined surface 41 are arranged Correspondingly, the inclined surface 41 slides on the guide surface 71; the detection box 50 is placed at the top of the middle part of the base 10, between the wedge blocks 70, and the reinforced concrete sample 100 is provided with a first steel bar 101 and a second steel bar 102; the concrete compression test block 60 is installed on the pressure plate 40 and extends into the detection box 50, for compressive test of the concrete; steel bar tensile test devices are arranged on the opposite sides of the two wedge blocks 70, and the steel bar tensile test devices extend into the detection box 50 towards each other and are fixedly connected with the first steel bar 101, for tensile test of the steel bar; the steel bar bending compression rod 90 is arranged at the bottom end of the pressure plate 40 and extends into the detection box 50, for bending test of the steel bar.

[0030] When in use, the oil cylinder 30 on the reaction frame 20 provides pressure, and the oil cylinder 30 pushes the pressure plate 40 downward, and the pressure plate 40 directly pushes the concrete compression test block 60 into the test box 50 to abut against the upper surface of the reinforced concrete, and until the concrete is damaged and fails; at the same time, the pressure plate 40 pushes the steel bar bending resistance rod 90 to extend into the test box 50 to apply pressure to the end of the second steel bar 102 to perform the steel bar bending resistance test, until the second steel bar 102 fails in bending; at the same time, the pressure plate 40 moves vertically, and the inclined surfaces 41 at both ends slide on the guide surface 71 of the wedge block 70 during the vertical downward movement, thereby pushing the two wedge blocks 70 to slide toward both ends in the slide groove 11 of the base 10, and the steel bar tensile test device arranged on the opposite side of the two wedge blocks 70 provides tension to both ends of the first steel bar 101 until the first steel bar 101 fails in tensile strength.

[0031] In a preferred embodiment, the steel bar tensile test device includes a pull rod 81, a tension meter 82 and a pulling sleeve 83. The tension meter 82 is installed on the side wall of the wedge block 70. One end of the pull rod 81 is fixedly connected to the tension meter 82, and the other end extends into the test box 50 and is fixedly connected to the pulling sleeve 83. The pulling sleeve 83 is fixedly connected to the end of the first steel bar 101. The pull rod 81 extends into the test box 50, and the wedge block 70 generates tension on the pull rod 81 during the movement of the wedge block 70 to both ends. The pull rod 81 generates tension on the end of the first steel bar 101 through the pulling sleeve 83; the tension meter 82 monitors the tension on the first steel bar 101 during the movement of the wedge block 70.

[0032] In a preferred embodiment, limiting portions 72 are provided on both sides of the wedge block 70, and limiting slide grooves 12 are provided on the two side walls of the slide groove 11. The limiting portions 72 are adapted to the limiting slide grooves 12, and the limiting portions 72 are slidably connected in the limiting slide grooves 12. The sliding of the limiting portions 72 in the limiting slide grooves 12 can ensure a more stable horizontal movement of the wedge block 70 in the base 10.

[0033] In a preferred embodiment, a reinforced concrete performance testing device further includes a pin connection block 110, a concrete compression test block 60 passes through the pressure plate 40, and the concrete compression test block 60 is connected to the pressure plate 40 through the pin connection block 110; a first pressure gauge 120 is provided between the pin connection block 110 and the concrete compression test block 60, for monitoring the pressure on the reinforced concrete sample 100. When the concrete fails first in the compression test, the pin connection block 110 is pulled out, so that the concrete compression test block 60 does not continue to press the sample, and the pressure plate 40 continues to push the wedge block 70 to both ends to perform the tensile test of the steel bar, or continues to push the steel bar bending pressure rod 90 to continue to perform the bending test on the end of the second steel bar 102.

[0034] In a preferred embodiment, an arc-shaped steel hoop 91 is provided at the bottom end of the steel bar anti-bending compression rod 90, and the arc-shaped steel hoop 91 is used to abut the end of the second steel bar 102 to perform steel bar anti-bending detection; a second pressure gauge 130 is provided between the steel bar anti-bending compression rod 90 and the pressure plate 40, and the second pressure gauge 130 is used to monitor the pressure of the steel bar anti-bending compression rod 90 on the end of the second steel bar 102. A reinforced concrete performance detection device also includes a steel bar support hoop 140 and a support rod 150, the support rod 150 is located on one side of the reinforced concrete sample 100, the second steel bar 102 passes through the steel bar support hoop 140, and the steel bar support hoop 140 is used to cooperate with the steel bar anti-bending compression rod 90 and the arc-shaped steel bar hoop 91 to perform steel bar anti-bending detection. During the detection, the support rod 150 and the steel bar support hoop 140 provide a fulcrum for the second steel bar 102, which is more conducive to the steel bar anti-bending compression rod 90 to apply pressure to the second steel bar 102.

[0035] In a preferred embodiment, a reinforced concrete performance testing device also includes a heating device for providing a high temperature environment for a testing box 50; the heating device includes an electric heating device 161 and a thermocouple 162, the electric heating device 161 is installed on the inner wall of the testing box 50, the electric heating device 161 heats the inside of the testing box 50, and provides performance testing of reinforced concrete at high temperatures; the thermocouple 162 is installed on the top wall of the testing box 50, and the thermocouple 162 monitors the temperature in the testing box 50 in real time.

[0036] In a preferred embodiment, a high-temperature glass window 51 is provided on the front side wall of the detection box 50 for observing the test conditions inside the detection box 50 .

[0037] In a preferred embodiment, a limit block 52 is provided at the bottom of the detection box 50 to limit the reinforced concrete sample 100 and prevent the reinforced concrete sample 100 from moving when performing tensile and bending tests on the steel bars.

[0038] In a preferred embodiment, a reinforced concrete performance detection device further includes a displacement monitoring device, which includes a first displacement meter 171, a second displacement meter 172, and a third displacement meter 173. A pair of first displacement meters 171 are installed at the top of the base 10, respectively located on one side of the two wedge blocks 70; a second displacement meter 172 and a second displacement meter 172 are installed at the top of the detection box 50, respectively aligned with the concrete compression detection block 60 and the steel bar bending and compression rod 90. The first displacement meter 171, the second displacement meter 172, and the third displacement meter 173 respectively monitor the displacement of the wedge block 70, the displacement of the concrete compression detection block 60, and the displacement of the steel bar bending and compression rod 90 in real time.

[0039] It is worth noting that the present invention can realize one or both of concrete compression testing and steel bar tension and compression testing by disassembling the pin connection block 110, the pull rod 81 and the steel bar bending and compression rod 90.

[0040] The above is only a specific embodiment of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

[0041] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0042] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A reinforced concrete performance detection device, characterized in that: include: A base (10), a reaction frame (20), an oil cylinder (30), a pressure plate (40), a detection box (50), a concrete compression test block (60), a wedge block (70), a steel bar tensile test device and a steel bar bending and compression rod (90), wherein the reaction frame (20) is mounted on the base (10), a plurality of oil cylinders (30) are mounted on the top of the reaction frame (20), two ends of the base (10) are provided with slide grooves (11), a pair of wedge blocks (70) slide in two slide grooves (11) respectively, the wedge blocks (70) are provided with guide surfaces (71), the guide surfaces (71) of the two wedge blocks (70) are arranged opposite to each other, and two ends of the pressure plate (40) are provided with inclined surfaces (41), the guide surfaces (71) are adapted to the inclined surfaces (41), and the inclined surfaces (41) are arranged on the base (10). The test box (50) is placed at the top of the middle part of the base (10) and is located between the wedge blocks (70). The reinforced concrete sample (100) is provided with a first steel bar (101) and a second steel bar (102). The concrete compression test block (60) is installed on the pressure plate (40) and extends into the test box (50) for testing the compression of concrete. A steel bar tensile test device is provided on the opposite sides of the two wedge blocks (70). The steel bar tensile test device extends into the test box (50) towards each other and is fixedly connected to the first steel bar (101) for testing the tensile strength of the steel bar. The steel bar bending resistance rod (90) is provided at the bottom end of the pressure plate (40) and extends into the test box (50) for testing the bending strength of the steel bar.

2. A reinforced concrete performance detection device according to claim 1, characterized in that: The steel bar tensile test device comprises a pull rod (81), a tensile gauge (82) and a pulling sleeve (83); the tensile gauge (82) is mounted on the side wall of the wedge block (70); one end of the pull rod (81) is fixedly connected to the tensile gauge (82); the other end extends into the test box (50) and is fixedly connected to the pulling sleeve (83); the pulling sleeve (83) is fixedly connected to the end of the first steel bar (101).

3. A reinforced concrete performance detection device according to claim 1, characterized in that: Limiting portions (72) are arranged on both sides of the wedge block (70), and limiting sliding grooves (12) are arranged on both side walls of the sliding groove (11). The limiting portions (72) are matched with the limiting sliding grooves (12), and the limiting portions (72) are slidably connected in the limiting sliding grooves (12).

4. A reinforced concrete performance detection device according to claim 1, characterized in that: It also comprises a pin connection block (110), the concrete compression test block (60) passes through the pressure plate (40), and the concrete compression test block (60) is connected to the pressure plate (40) via the pin connection block (110); a first pressure gauge (120) is arranged between the pin connection block (110) and the concrete compression test block (60) for monitoring the pressure on the reinforced concrete sample (100).

5. A reinforced concrete performance detection device according to claim 1, characterized in that: An arc-shaped steel hoop (91) is provided at the bottom end of the steel bar anti-bending compression rod (90), and the arc-shaped steel hoop (91) is used to abut the end of the second steel bar (102) to perform steel bar anti-bending detection; a second pressure gauge (130) is provided between the steel bar anti-bending compression rod (90) and the pressure plate (40), and the second pressure gauge (130) is used to monitor the pressure of the steel bar anti-bending compression rod (90) on the end of the second steel bar (102).

6. A reinforced concrete performance detection device according to claim 5, characterized in that: It also includes a steel bar support hoop (140) and a support rod (150), wherein the support rod (150) is located on one side of the reinforced concrete sample (100), and the second steel bar (102) passes through the steel bar support hoop (140), and the steel bar support hoop (140) is used to cooperate with the steel bar bending resistance rod (90) and the arc-shaped steel bar hoop (91) to perform steel bar bending resistance detection.

7. A reinforced concrete performance detection device according to claim 1, characterized in that: It also includes a heating device for providing a high temperature environment for the detection box (50); the heating device includes an electric heating device (161) and a thermocouple (162); the electric heating device (161) is installed on the inner wall of the detection box (50), and the thermocouple (162) is installed on the top wall of the detection box (50).

8. A reinforced concrete performance detection device according to claim 1, characterized in that: The front side wall of the detection box (50) is provided with a high-temperature glass window (51) for observing the test conditions inside the detection box (50).

9. A reinforced concrete performance detection device according to claim 1, characterized in that: A limiting block (52) is provided at the bottom of the detection box (50) for limiting the position of the reinforced concrete sample (100).

10. A reinforced concrete performance detection device according to claim 1, characterized in that: It also includes a displacement monitoring device, which includes a first displacement meter (171), a second displacement meter (172) and a third displacement meter (173). A pair of the first displacement meters (171) are installed at the top of the base (10), respectively located on one side of the two wedge blocks (70); the second displacement meter (172) and the third displacement meter (173) are installed at the top of the detection box (50), respectively aligned with the concrete compression detection block (60) and the steel bar bending and compression rod (90).

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