Device for testing adhesive property of reinforced concrete at high temperature

Abstract

The invention relates to the technical field of material testing, and discloses a device for testing the adhesive property of reinforced concrete at high temperature, which comprises a bottom plate, an annular support mechanism is fixedly mounted on the top surface of the bottom plate, a bearing annular plate is fixedly mounted on the top of the annular support mechanism, and a carrying annular plate is lapped on the top surface of the bearing annular plate. According to the invention, the piston part is driven to lift by testing tensile hydraulic pressure, and then the test steel bar is pulled by the tension sensor, so that the test steel bar is vertically lifted in the concrete slurry, and tension data can be acquired through the induction of the tension sensor, so that the concrete slurry can be conveniently tested in the solidification process; and due to the longitudinally arranged and lifted reinforcing steel bar structure, the conditions of construction disturbance and displacement caused by the fact that the reinforcing steel bars are transversely arranged in the concrete slurry which is not fully coagulated and solidified are avoided in the test process, and the test application in the uncoagulated concrete slurry is greatly facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of material testing, and in particular to a device for testing the bonding performance of reinforced concrete at high temperatures. 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. It is the most common form of reinforced concrete. The bonding performance of reinforced concrete refers to the interaction between steel and concrete through bonding, friction and mechanical bite, ensuring that the two can work together and effectively transfer stress. The bonding mechanism of reinforced concrete is mainly divided into bonding, friction and mechanical bite. Bonding is the adsorption force between cement colloid in concrete and the surface of steel bars. Friction is the friction generated by the grip of concrete shrinkage on steel bars, and mechanical bite is the mechanical bite between the uneven surface of steel bars and concrete. The main factors affecting the bonding performance of reinforced concrete include concrete strength, protective layer thickness, steel surface shape and stress conditions. In the process of designing and constructing plans, measures need to be taken to adjust the characteristics of reinforced concrete in different temperature environments, so as to facilitate the use of standard designs.

[0003] In the application research of reinforced concrete, the performance changes of reinforced concrete structures under high temperature have always been one of the research focuses in the fields of architecture and engineering. As a material widely used in modern buildings, the performance of reinforced concrete in high temperature environment is directly related to the safety and durability of the building. The test of the bonding performance of reinforced concrete under high temperature usually adopts the center pull-out test and push-out test. The center pull-out test simulates the bonding between steel bars and concrete in the actual structure by burying steel bars in concrete and applying tension at one end of the steel bars. The push-out test measures the bonding strength by fixing the concrete block on the test pedestal and pushing the concrete block to make it slide relative to the steel bars or corrugated steel plates.

[0004] At present, the existing reinforced concrete testing conditions are all based on the testing of the finished reinforced concrete after solidification, and the testing is carried out by simulating the high temperature during fire or even explosion. However, there is a lack of bonding performance testing based on the solidification process during construction operations, which makes it difficult to simulate the concrete pouring and full solidification process under the high temperature climate in summer; and traditional testing equipment and methods basically use lateral pushing or pulling of steel bars, which is not suitable for testing in concrete slurry during the solidification process, because the concrete slurry that has not been fully solidified and solidified will cause the tested steel bars to produce construction disturbances, which is easy to cause displacement, which is not conducive to testing. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a device for testing the bonding performance of reinforced concrete at high temperatures, which solves the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: The invention discloses a device for testing the bonding performance of reinforced concrete under high temperature, comprising a base plate, a ring bracket mechanism is fixedly installed on the top surface of the base plate, a load-bearing ring plate is fixedly installed on the top of the ring bracket mechanism, a carrying ring plate is overlapped on the top surface of the load-bearing ring plate, an amplitude transmission spring part is fixedly connected to the top surface of the carrying ring plate, a load-bearing panel is fixedly connected to the top of the amplitude transmission spring part, a supporting ring frame is fixedly connected to the bottom surface of the supporting ring frame, a supporting round bucket frame is fixedly connected to the bottom surface of the supporting round bucket frame, a vibration motor is connected to the bottom surface of the supporting round bucket frame, and a lifting hydraulic cylinder is fixedly installed on the corner of the top surface of the base plate, and the lifting hydraulic cylinder is fixedly installed on the corner of the top surface of the base plate. The output piston of the pressure cylinder overlaps the corner of the bottom surface of the load-bearing panel, a rodless cylinder is fixedly arranged on the side of the top surface of the load-bearing panel, a support frame is fixedly installed on the output piston of the rodless cylinder, a test stretching hydraulic cylinder is fixedly arranged on the top of the support frame, the bottom end of the output piston of the test stretching hydraulic cylinder is connected to a tension sensor, and the bottom sensing end of the tension sensor is connected to a test steel bar, an insulation shell is fixedly installed in the middle of the top surface of the load-bearing panel, a heating component is embedded in the side wall of the insulation shell, a test load-bearing shell is movably overlapped inside the insulation shell, and a temperature sensor is provided on the top of the test load-bearing shell.

[0007] Preferably, the inner ring of the bearing ring plate is fixedly welded with an alignment bucket ring, and the alignment bucket ring is a circular bucket ring structure with a top port diameter smaller than its bottom port diameter, and the inner ring side edge of the bearing ring plate is movably overlapped with the bottom of the outer surface of the alignment bucket ring.

[0008] Preferably, the bottom plate includes a bottom substrate and a loading side hole, and the loading side hole is longitudinally penetrated and opened near the edge of the bottom substrate; the ring bracket mechanism includes an outer supporting ring tube, an inner supporting ring tube, a lightweight bottom groove and a lightweight top groove, the outer supporting ring tube is arranged on the outside of the inner supporting ring tube, the lightweight bottom groove is penetrated through the bottom of the side walls of the outer supporting ring tube and the inner supporting ring tube, and the lightweight top groove is penetrated through the top of the side walls of the outer supporting ring tube and the inner supporting ring tube, the number of the lightweight bottom groove and the lightweight top groove are both multiple, and the multiple lightweight bottom grooves and lightweight top grooves are cross-shaped and equidistantly distributed, and the groove edges of the lightweight bottom groove and the lightweight top groove are arc-shaped, and the top and bottom of the lightweight bottom groove and the lightweight top groove are respectively welded and fixed to the bearing ring plate and the bottom substrate.

[0009] Preferably, the amplitude transfer spring portion includes a loading end plate, a rivet nail and a spring body, the top and bottom ends of the spring body are welded and fixed to the end face of the loading end plate, the loading end plate at the bottom end of the spring body is riveted and fixed to the mounting ring plate by a rivet nail, and the loading end plate at the top end of the spring body is riveted and fixed to the bearing panel by a rivet nail.

[0010] Preferably, the support and lifting ring frame includes a support and lifting fixed welding ring plate and welding spot increasing grooves, the number of the welding spot increasing grooves is multiple, and the multiple welding spot increasing grooves are equidistantly distributed around the plate body of the support and lifting fixed welding ring plate and are longitudinally penetrated, and the top of the support and lifting fixed welding ring plate is welded and fixed to the load-bearing panel; the support and lifting circular bucket frame includes a support and lifting bucket tube, a loading bottom bucket plate and a reinforced support hoop, the top and bottom ends of the support and lifting bucket tube are respectively welded and fixed to the support and lifting fixed welding ring plate and the loading bottom bucket plate, the top and bottom ends of the reinforced support hoop are respectively fixedly welded to the middle part of the support and lifting bucket tube surface and the edge of the top surface of the loading bottom bucket plate, and the connecting end of the vibration motor is fixedly connected to the middle part of the bottom surface of the loading bottom bucket plate.

[0011] Preferably, the rodless cylinder includes a rodless cylinder body and a rodless cylinder moving piston, and the rodless cylinder moving piston is arranged on the upper surface of the rodless cylinder body; the supporting frame includes a longitudinal frame arm, a transverse frame bar, a reinforced oblique support bar and a through straight groove, the top end of the side of the longitudinal frame arm is fixedly connected to the transverse frame bar, the upper surface of the side of the longitudinal frame arm is fixedly connected to the reinforced oblique support bar, the through straight groove is opened through the middle of the reinforced oblique support bar, the ends of the transverse frame bar and the reinforced oblique support bar away from the longitudinal frame arm are fixedly connected with a clamp frame, the test stretching hydraulic cylinder is fixed inside the clamp frame, and the longitudinal frame arm is fixedly connected to the top of the rodless cylinder moving piston.

[0012] Preferably, a support and suspension connection frame is connected between the output piston of the test stretching hydraulic cylinder and the top sensing end of the tension sensor, and the output piston of the test stretching hydraulic cylinder and the top sensing end of the tension sensor are connected through the support and suspension connection frame.

[0013] Preferably, the tension sensor includes a sensor body, an inductor electrical signal transmission cable and a lifting ring body, the lifting ring body is threadedly connected to the top and bottom sensing ends of the sensor body, and the inductor electrical signal transmission cable is connected to the sensor body; the support and suspension connecting frame includes a support and suspension connecting end plate and a support and suspension connecting U-shaft, the top and bottom surfaces of the support and suspension connecting end plate are respectively fixedly connected to the output piston of the test tensile hydraulic cylinder and the top end of the support and suspension connecting U-shaft, the support and suspension connecting U-shaft is connected to the lifting ring body buckle sleeve at the top sensing end of the sensor body, and the lifting ring body at the bottom sensing end of the sensor body is provided for the buckle sleeve bearing of the test steel bar.

[0014] Preferably, the insulation cylinder shell includes a fixed shell, an insulation lining shell and a heating slot, the insulation lining shell is fixedly arranged inside the fixed shell, and the heating slot is opened through the side walls of the fixed shell and the insulation lining shell; the heating assembly includes a heating wire frame, a heating wire body and a junction box, the heating wire frame is arranged in the heating slot, the heating wire body is arranged in the heating wire frame, and the junction box is arranged on the side of the heating wire frame; the test load-bearing shell includes a concrete load-bearing cylinder, a supporting cylinder edge and a cylinder support, the supporting cylinder edge is arranged at the top end of the concrete load-bearing cylinder, and the cylinder support is fixedly arranged at the connection between the concrete load-bearing cylinder and the supporting cylinder edge; the temperature sensor includes a sensor bracket and a temperature sensor body, the temperature sensor body is plugged into the sensor bracket, and the thermocouple sensing part of the temperature sensor body is located inside the concrete load-bearing cylinder.

[0015] Preferably, a counter-loading bucket cover is fixedly installed on the top of the output piston of the lifting hydraulic cylinder, and a counter-loading bucket cover movably inserted in the counter-loading bucket cover is fixedly installed on the corner of the bottom surface of the bearing panel. The output piston of the lifting hydraulic cylinder overlaps with the corner of the bottom surface of the bearing panel through the counter-loading bucket cover and the counter-loading bucket cover. The counter-loading bucket cover and the counter-loading bucket cover are both circular bucket tube shell structures with closed bottoms. The counter-loading bucket cover and the counter-loading bucket cover both have top diameters larger than their bottom diameters, and the top edge of the counter-loading bucket cover overlaps with the bottom surface of the bearing panel.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The device for testing the bonding performance of reinforced concrete under high temperature, by setting a test container shell as a container structure for containing concrete slurry, and then setting an insulating shell on the outside of the test container shell to provide insulation and support for the test container shell, can provide heating through the heating component on the side of the insulating shell, and during the heating process of the test container shell, the temperature of the concrete slurry therein can be monitored in real time through a temperature sensor, and at the same time, a vibration motor is started for vibration treatment, and the concrete slurry can be driven to move by vibration, thereby avoiding uneven heating. When heated to a temperature that meets the high temperature working condition in summer, a bonding performance test based on the coagulation process in the construction operation is provided, which is convenient for simulating the concrete pouring and full coagulation process under the high temperature climate in summer, and achieves an effect that is conducive to detection.

[0017] 2. The reinforced concrete bonding performance testing device under high temperature drives its piston part to lift through the test tensile hydraulic pressure, and then pulls the test steel bar through the tension sensor, so that the test steel bar is vertically lifted in the concrete slurry. The tension data can be acquired through the induction of the tension sensor, which is very convenient for testing the concrete slurry in the solidification process. The steel bar structure placed vertically for lifting avoids the construction disturbance and displacement caused by the horizontal placement of the steel bar in the concrete slurry that is not fully solidified and coagulated during the test, which greatly facilitates the test application in the unsolidified concrete slurry. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional view of the structure of the present invention; Figure 2 It is a three-dimensional view of a part of the structure of the present invention; Figure 3 A three-dimensional view of the ring support mechanism of the present invention; Figure 4 It is a three-dimensional view of the local structure of the present invention; Figure 5 It is an inverted stereoscopic view of another partial structure of the present invention; Figure 6 It is another partial structural stereoscopic view of the present invention; Figure 7 A three-dimensional view of the heating assembly of the present invention; Figure 8 A three-dimensional view of the test container of the present invention; Fig. 9 This is a stereoscopic view of the tension sensor of the present invention.

[0019] In the figure: 1. bottom plate; 2. ring support mechanism; 3. load-bearing ring plate; 4. alignment bucket ring; 5. carrying ring plate; 6. amplitude transmission spring part; 7. load-bearing panel; 8. support ring frame; 9. support round bucket frame; 10. vibration motor; 11. lifting hydraulic cylinder; 12. alignment load-bearing bucket cover; 13. alignment plug-in load bucket cover; 14. insulation cylinder shell; 15. heating component; 16. test container shell; 17. temperature sensor; 18. rodless cylinder; 19. support frame; 20. test stretching hydraulic cylinder; 21. tension sensor; 22. test steel bar; 23. clamping frame; 24. support and suspension connecting frame; 101, bottom base plate; 102, loading side hole; 202, outer support ring tube; 202, inner support ring tube; 203, lightweight bottom groove; 204, lightweight top groove; 601, loading end plate; 602, rivet nail; 603, spring body; 801, support and fixed welding ring plate; 802, welding point welding groove; 901, support and hanging bucket pipe; 902, loading bottom bucket plate; 903, strengthening support hoop; 1801, rodless cylinder body; 1401, fixed shell; 1402, insulation lining shell; 1403, heating position slot; 1501, heating wire machine Frame; 1502, heating wire; 1503, junction box; 1601, concrete load-bearing cylinder; 1602, support cylinder edge; 1603, cylinder support; 1701, sensor bracket; 1702, temperature sensor body; 1802, rodless cylinder moving piston; 1901, longitudinal frame arm; 1902, transverse frame bar; 1903, reinforced oblique support bar; 1904, through straight groove; 2101, sensor body; 2102, sensor electrical signal transmission cable; 2103, lifting ring body; 2401, support and connection end plate; 2402, support and connection U-axis. DETAILED DESCRIPTION

[0020] 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.

[0021] Example: Refer to Figure 1-9The reinforced concrete bonding performance testing device under high temperature comprises a bottom plate 1, a ring bracket mechanism 2 is fixedly installed on the top surface of the bottom plate 1, a bearing ring plate 3 is fixedly installed on the top of the ring bracket mechanism 2, a carrying ring plate 5 is overlapped on the top surface of the bearing ring plate 3, an amplitude transmission spring part 6 is fixedly connected to the top surface of the carrying ring plate 5, a bearing panel 7 is fixedly connected to the top of the amplitude transmission spring part 6, a supporting ring frame 8 is fixedly connected to the bottom surface of the supporting ring frame 8, a supporting round bucket frame 9 is fixedly connected to the bottom surface of the supporting round bucket frame 9, a vibration motor 10 is connected to the bottom surface of the supporting round bucket frame 9, a lifting hydraulic cylinder 11 is fixedly installed at the corner of the top surface of the bottom plate 1, and an output piston of the lifting hydraulic cylinder 11 is connected to the The corners of the bottom surface of the load-bearing panel 7 are overlapped, and a rodless cylinder 18 is fixedly arranged on the side of the top surface of the load-bearing panel 7. A support frame 19 is fixedly installed on the output piston of the rodless cylinder 18, and a test stretching hydraulic cylinder 20 is fixedly arranged on the top of the support frame 19. The bottom end of the output piston of the test stretching hydraulic cylinder 20 is connected to a tension sensor 21, and the bottom sensing end of the tension sensor 21 is connected to a test steel bar 22. An insulation shell 14 is fixedly installed in the middle of the top surface of the load-bearing panel 7, and a heating component 15 is embedded in the side wall of the insulation shell 14. A test container shell 16 is movably overlapped inside the insulation shell 14, and a temperature sensor 17 is provided on the top of the test container shell 16.

[0022] In the present invention, the inner ring of the bearing ring plate 3 is fixedly welded with a positioning bucket ring 4, the positioning bucket ring 4 is a circular bucket ring structure with a top end diameter smaller than its bottom end diameter, and the inner ring side edge of the carrying ring plate 5 is movably overlapped with the bottom of the outer surface of the positioning bucket ring 4; More specifically, by setting the alignment bucket ring 4 as a circular bucket ring structure with a top port diameter smaller than its bottom port diameter, deviation of the carrying ring plate 5 during the falling process is avoided, and the vibration of the amplitude transfer spring part 6 and the inconvenience of alignment are avoided.

[0023] In the present invention, the bottom plate 1 includes a bottom base plate 101 and a loading side hole 102, and the loading side hole 102 is longitudinally penetrated and opened near the edge of the bottom base plate 101; the ring bracket mechanism 2 includes an outer support ring tube 201, an inner support ring tube 202, a lightweight bottom groove 203 and a lightweight top groove 204, the outer support ring tube 201 is arranged on the outside of the inner support ring tube 202, and the lightweight bottom groove 203 is penetrated and opened at the bottom of the side walls of the outer support ring tube 201 and the inner support ring tube 202, and the lightweight top groove 204 is The top groove 204 is opened through the top of the side wall of the outer supporting ring tube 201 and the inner supporting ring tube 202, the number of the lightweight bottom groove 203 and the lightweight top groove 204 are both multiple, and the multiple lightweight bottom grooves 203 and the lightweight top grooves 204 are crossed and distributed at equal intervals, and the groove edges of the lightweight bottom groove 203 and the lightweight top groove 204 are arc-shaped, and the top and bottom of the lightweight bottom groove 203 and the lightweight top groove 204 are respectively welded and fixed to the bearing ring plate 3 and the bottom base plate 101; More specifically, by arranging a plurality of lightweight bottom grooves 203 and lightweight top grooves 204 that are cross-spaced and evenly spaced, the outer support ring tube 201 and the inner support ring tube 202 with a double overlapping design not only ensure strength, but also achieve lightweight design and save consumables.

[0024] In the present invention, the amplitude transmission spring part 6 includes a loading end plate 601, a rivet nail 602 and a spring body 603. The top and bottom ends of the spring body 603 are both welded and fixed to the end surface of the loading end plate 601. The loading end plate 601 at the bottom end of the spring body 603 is riveted and fixed to the mounting ring plate 5 through the rivet nail 602. The loading end plate 601 at the top end of the spring body 603 is riveted and fixed to the bearing panel 7 through the rivet nail 602. More specifically, by arranging loading end plates 601 at both ends of the spring body 603, the loading end plates 601 are riveted and fixed to other structures through rivet nails 602, so that the riveting performance is more conducive to adapting to the working conditions of spring vibration transmission, is not prone to fatigue during long-term use, and has better stress absorption quality.

[0025] In the present invention, the support ring frame 8 includes a support fixed welding ring plate 801 and a welding spot welding groove 802, the number of the welding spot welding groove 802 is multiple, and the multiple welding spot welding grooves 802 are equidistantly distributed around the plate body of the support fixed welding ring plate 801 and are longitudinally penetrated, and the top of the support fixed welding ring plate 801 is welded and fixed to the bearing panel 7; the support circular bucket frame 9 includes a support bucket tube 901, a loading bottom bucket plate 902 and a strengthening support hoop 903, the top and bottom ends of the support bucket tube 901 are respectively welded and fixed to the support fixed welding ring plate 801 and the loading bottom bucket plate 902, the top and bottom ends of the strengthening support hoop 903 are respectively fixedly welded to the middle part of the surface of the support bucket tube 901 and the top edge of the loading bottom bucket plate 902, and the connecting end of the vibration motor 10 is fixedly connected to the middle part of the bottom surface of the loading bottom bucket plate 902; More specifically, by setting the welding spot increasing groove 802 in the support and fixed welding ring plate 801, in the process of welding and fixing the support and fixed welding ring plate 801 and the bearing panel 7, the welding spot can be supplemented through the welding spot increasing groove 802, so as to avoid the welding stability hazard caused by the welding point only being along the outer edge of the support and fixed welding ring plate 801. In the present invention, the rodless cylinder 18 includes a rodless cylinder body 1801 and a rodless cylinder moving piston 1802, and the rodless cylinder moving piston 1802 is arranged on the upper surface of the rodless cylinder body 1801; the supporting frame 19 includes a longitudinal frame arm 1901, a transverse frame bar 1902, a reinforced oblique support bar 1903 and a through straight groove 1904, the top of the side of the longitudinal frame arm 1901 is fixedly connected to the transverse frame bar 1902, the upper surface of the side of the longitudinal frame arm 1901 is fixedly connected to the reinforced oblique support bar 1903, the through straight groove 1904 runs through and is opened in the middle of the reinforced oblique support bar 1903, the ends of the transverse frame bar 1902 and the reinforced oblique support bar 1903 away from the longitudinal frame arm 1901 are fixedly connected with a clamp frame 23, the test stretching hydraulic cylinder 20 is fixed inside the clamp frame 23, and the longitudinal frame arm 1901 is fixedly connected to the top of the rodless cylinder moving piston 1802; More specifically, by providing the strengthening oblique support bar 1903, the stability of the horizontal frame bar 1902 structure and the longitudinal frame arm 1901 is improved, the structural strength is guaranteed, and the risk of structural deformation is avoided. In the present invention, a support and suspension connection frame 24 is connected between the output piston of the test stretching hydraulic cylinder 20 and the top sensing end of the tension sensor 21, and the output piston of the test stretching hydraulic cylinder 20 and the top sensing end of the tension sensor 21 are connected through the support and suspension connection frame 24; More specifically, by providing the support and suspension connection frame 24, the output piston of the test stretching hydraulic cylinder 20 and the tension sensor 21 can be more conveniently connected longitudinally.

[0026] In the present invention, the tension sensor 21 includes a sensor body 2101, an inductor electrical signal transmission cable 2102 and a lifting ring 2103, the lifting ring 2103 is threadedly connected to the top and bottom sensing ends of the sensor body 2101, and the inductor electrical signal transmission cable 2102 is connected to the sensor body 2101; the support and suspension connection frame 24 includes a support and suspension connection end plate 2401 and a support and suspension connection U-axis 2402, the top and bottom surfaces of the support and suspension connection end plate 2401 are respectively fixedly connected to the output piston of the test tensile hydraulic cylinder 20 and the top of the support and suspension connection U-axis 2402, the support and suspension connection U-axis 2402 is connected with the lifting ring 2103 at the top sensing end of the sensor body 2101, and the lifting ring 2103 at the bottom sensing end of the sensor body 2101 is provided for the buckle bearing of the test steel bar 22; More specifically, by providing a lifting ring 2103 to support the buckle sleeve of the test steel bar 22, the required test steel bar 22 only needs to be bent at one end to be inserted, thereby facilitating the fixation of the steel bar material during testing and avoiding the trouble and cost increase caused by adopting other fixing fixtures.

[0027] In the present invention, the heat-insulating cylinder shell 14 includes a fixed shell 1401, a heat-insulating liner shell 1402 and a heating slot 1403. The heat-insulating liner shell 1402 is fixedly arranged inside the fixed shell 1401, and the heating slot 1403 is opened through the side walls of the fixed shell 1401 and the heat-insulating liner shell 1402; the heating component 15 includes a heating wire frame 1501, a heating wire body 1502 and a junction box 1503. The heating wire frame 1501 is arranged in the heating slot 1403, the heating wire body 1502 is arranged in the heating wire frame 1501, and the junction box 1503 is arranged in the heating wire frame 1501 side; the test container shell 16 includes a concrete container 1601, a support container edge 1602 and a container support 1603, the support container edge 1602 is arranged at the top of the concrete container 1601, and the container support 1603 is fixedly arranged at the connection between the concrete container 1601 and the support container edge 1602; the temperature sensor 17 includes a sensor bracket 1701 and a temperature sensor body 1702, the temperature sensor body 1702 is plugged into the sensor bracket 1701, and the thermocouple sensing part of the temperature sensor body 1702 is located inside the concrete container 1601; More specifically, by providing the support cylinder edge 1602 and the cylinder support 1603, the cylinder support 1603 can provide more powerful support for the concrete containing cylinder 1601, so as to facilitate the concrete containing cylinder 1601 loaded with concrete slurry to be lifted out by grabbing of the lifting equipment.

[0028] In the present invention, a counter bearing bucket cover 12 is fixedly installed on the top of the output piston of the lifting hydraulic cylinder 11, and a counter bearing bucket cover 13 movably plugged into the counter bearing bucket cover 12 is fixedly installed on the corner of the bottom surface of the bearing panel 7. The output piston of the lifting hydraulic cylinder 11 overlaps with the corner of the bottom surface of the bearing panel 7 through the counter bearing bucket cover 12 and the counter bearing bucket cover 13. The counter bearing bucket cover 12 and the counter bearing bucket cover 13 are both round bucket shell structures with closed bottoms. The counter bearing bucket cover 12 and the counter bearing bucket cover 13 are both larger in top diameter than their bottom diameters, and the top edge of the counter bearing bucket cover 12 overlaps with the bottom surface of the bearing panel 7. More specifically, by setting the top diameter of the aligning load-bearing bucket cover 12 and the aligning insertion load-bearing bucket cover 13 to be larger than the bottom diameter, when the output piston of the lifting hydraulic cylinder 11 is pushed out, the aligning load-bearing bucket cover 12 and the aligning insertion load-bearing bucket cover 13 can be more stably and smoothly aligned and buckled.

[0029] During use: When conducting the test operation, concrete slurry is injected into the test container shell 16, and the heating component 15 is started to heat the side of the test container shell 16; then the lifting hydraulic cylinder 11 is driven until the piston part contracts downward, driving the top part of the output piston of the lifting hydraulic cylinder 11 (and its fixed structure) to be out of contact with the bearing panel 7 and the structure below it, that is, the carrying ring plate 5 is overlapped on the bearing ring plate 3, and then the amplitude transfer spring part 6 completely provides longitudinal bearing for the bearing panel 7, and then the vibration motor 10 is started, and the amplitude transfer spring part 6 can be used to evenly transfer the amplitude, so that the bearing panel 7 and the structure supported on the top of it shake, so that the concrete slurry in the test container shell 16 shakes during the heating process. It is also vibrated and oscillated to promote more uniform heating of the concrete slurry in the test container shell 16, and the temperature of the concrete slurry heating can be monitored and controlled in real time by inserting the sensing end of the temperature sensor 17 into the concrete slurry; finally, the test steel bar 22 is inserted into the interior of the test container shell 16, and the top of the test steel bar 22 is connected to the sensing end of the bottom of the tension sensor 21, and the sensing end of the top of the tension sensor 21 is connected to the bottom of the output piston of the test stretching hydraulic cylinder 20, so that the output piston of the test stretching hydraulic cylinder 20 can be driven to contract, and then the test steel bar 22 can be lifted by the tension sensor 21, so that the tension sensed by the tension sensor 21 can be obtained to realize the test.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for testing the bonding performance of reinforced concrete at high temperature, comprising a base plate (1), characterized in that: The top surface of the bottom plate (1) is fixedly mounted with a ring support mechanism (2), the top of the ring support mechanism (2) is fixedly mounted with a bearing ring plate (3), the top surface of the bearing ring plate (3) is overlapped with a carrying ring plate (5), the top surface of the carrying ring plate (5) is fixedly connected with an amplitude transmission spring portion (6), the top end of the amplitude transmission spring portion (6) is fixedly connected with a bearing panel (7), the bottom surface of the bearing panel (7) is fixedly connected with a supporting ring frame (8), the bottom surface of the supporting ring frame (8) is fixedly connected with a supporting round bucket frame (9), the bottom surface of the supporting round bucket frame (9) is connected with a vibration motor (10), and a lifting hydraulic cylinder (11) is fixedly mounted at a corner of the top surface of the bottom plate (1), the output piston of the lifting hydraulic cylinder (11) is in contact with the corner of the bottom surface of the bearing panel (7). The bearing panel (7) is overlapped at the top surface, a rodless cylinder (18) is fixedly arranged on the side of the top surface, a support frame (19) is fixedly installed on the output piston of the rodless cylinder (18), a test stretching hydraulic cylinder (20) is fixedly arranged on the top of the support frame (19), the bottom end of the output piston of the test stretching hydraulic cylinder (20) is connected to a tension sensor (21), the bottom sensing end of the tension sensor (21) is connected to a test steel bar (22), an insulation shell (14) is fixedly installed in the middle of the top surface of the bearing panel (7), a heating component (15) is embedded in the side wall of the insulation shell (14), a test container shell (16) is movably overlapped inside the insulation shell (14), and a temperature sensor (17) is provided on the top of the test container shell (16).

2. The reinforced concrete bonding performance testing device under high temperature according to claim 1, characterized in that: The inner ring of the bearing ring plate (3) is fixedly welded with a counter-positioning bucket ring (4), the counter-positioning bucket ring (4) being a circular bucket ring structure with a top end diameter smaller than a bottom end diameter, and the inner ring side edge of the carrying ring plate (5) is movably overlapped with the bottom of the outer surface of the counter-positioning bucket ring (4).

3. The reinforced concrete bonding performance testing device under high temperature according to claim 1, characterized in that: The bottom plate (1) comprises a bottom substrate (101) and a loading side hole (102), wherein the loading side hole (102) is longitudinally penetrated and opened near the edge of the bottom substrate (101); the ring support mechanism (2) comprises an outer supporting ring tube (201), an inner supporting ring tube (202), a lightweight bottom groove (203) and a lightweight top groove (204), wherein the outer supporting ring tube (201) is arranged outside the inner supporting ring tube (202), and the lightweight bottom groove (203) is penetrated and opened at the bottom of the side walls of the outer supporting ring tube (201) and the inner supporting ring tube (202). The lightweight top groove (204) is opened through the top of the side walls of the outer supporting ring tube (201) and the inner supporting ring tube (202), the number of the lightweight bottom groove (203) and the lightweight top groove (204) are both multiple, and the multiple lightweight bottom grooves (203) and lightweight top grooves (204) are crossed and distributed at equal intervals, and the groove edges of the lightweight bottom groove (203) and the lightweight top groove (204) are arc-shaped, and the top and bottom of the lightweight bottom groove (203) and the lightweight top groove (204) are respectively welded and fixed to the bearing ring plate (3) and the bottom base plate (101).

4. The reinforced concrete bonding performance testing device under high temperature according to claim 1, characterized in that: The amplitude transfer spring portion (6) comprises a loading end plate (601), a rivet nail (602) and a spring body (603); the top and bottom ends of the spring body (603) are both welded and fixed to the end surface of the loading end plate (601); the loading end plate (601) at the bottom end of the spring body (603) is riveted and fixed to the mounting ring plate (5) via the rivet nail (602); and the loading end plate (601) at the top end of the spring body (603) is riveted and fixed to the bearing panel (7) via the rivet nail (602).

5. The reinforced concrete bonding performance testing device under high temperature according to claim 1, characterized in that: The support ring frame (8) comprises a support fixed welding ring plate (801) and a welding spot increasing groove (802), the number of the welding spot increasing groove (802) is multiple, and the multiple welding spot increasing grooves (802) are equidistantly distributed around the plate body of the support fixed welding ring plate (801) and are longitudinally penetrated, and the top of the support fixed welding ring plate (801) is welded and fixed to the bearing panel (7); the support round bucket frame (9) comprises a support inverted bucket pipe (901), a loading bottom bucket plate (902) and a reinforcing support hoop (903), the top and bottom ends of the supporting bucket tube (901) are respectively welded and fixed to the supporting fixed welding ring plate (801) and the loading bottom bucket plate (902), the top and bottom ends of the reinforcing support hoop (903) are respectively fixedly welded to the middle part of the surface of the supporting bucket tube (901) and the edge of the top surface of the loading bottom bucket plate (902), and the connecting end of the vibration motor (10) is fixedly connected to the middle part of the bottom surface of the loading bottom bucket plate (902).

6. The reinforced concrete bonding performance testing device under high temperature according to claim 1, characterized in that: The rodless cylinder (18) comprises a rodless cylinder body (1801) and a rodless cylinder movable piston (1802), wherein the rodless cylinder movable piston (1802) is arranged on the upper surface of the rodless cylinder body (1801); the support frame (19) comprises a longitudinal frame arm (1901), a transverse frame bar (1902), a reinforcing oblique support bar (1903) and a through straight groove (1904), wherein the top end of the side of the longitudinal frame arm (1901) is fixedly connected to the transverse frame bar (1902), and the longitudinal frame arm (1901) is fixedly connected to the transverse frame bar (1902). 01) The upper surface of the side is fixedly connected to the reinforced oblique support bar (1903), the through straight groove (1904) is opened through the middle of the reinforced oblique support bar (1903), the ends of the transverse frame bar (1902) and the reinforced oblique support bar (1903) away from the longitudinal frame arm (1901) are fixedly connected to the clamping frame (23), the test stretching hydraulic cylinder (20) is fixed inside the clamping frame (23), and the longitudinal frame arm (1901) is fixedly connected to the top of the rodless cylinder moving piston (1802).

7. The reinforced concrete bonding performance testing device under high temperature according to claim 1, characterized in that: A support and suspension connection frame (24) is connected between the output piston of the test stretching hydraulic cylinder (20) and the top sensing end of the tension sensor (21), and the output piston of the test stretching hydraulic cylinder (20) and the top sensing end of the tension sensor (21) are connected via the support and suspension connection frame (24).

8. The reinforced concrete bonding performance testing device under high temperature according to claim 7, characterized in that: The tension sensor (21) comprises a sensor body (2101), an inductor electrical signal transmission cable (2102) and a lifting ring (2103), wherein the lifting ring (2103) is threadedly connected to the top and bottom sensing ends of the sensor body (2101), and the inductor electrical signal transmission cable (2102) is connected to the sensor body (2101); the support and suspension connection frame (24) comprises a support and suspension connection end plate (2401) and a support and suspension connection U-shaft (2402), wherein the top and bottom surfaces of the support and suspension connection end plate (2401) are respectively fixedly connected to the output piston of the test tensile hydraulic cylinder (20) and the top of the support and suspension connection U-shaft (2402), wherein the support and suspension connection U-shaft (2402) is connected to the lifting ring (2103) at the top sensing end of the sensor body (2101) by a buckle sleeve, and the lifting ring (2103) at the bottom sensing end of the sensor body (2101) is provided for buckle sleeve bearing of the test steel bar (22).

9. The reinforced concrete bonding performance testing device under high temperature according to claim 1, characterized in that: The heat-insulating cylinder shell (14) comprises a fixed shell (1401), a heat-insulating sleeve shell (1402) and a heating slot (1403); the heat-insulating sleeve shell (1402) is fixedly arranged inside the fixed shell (1401); the heating slot (1403) penetrates through the side walls of the fixed shell (1401) and the heat-insulating sleeve shell (1402); the heating component (15) comprises a heating wire frame (1501), a heating wire body (1502) and a junction box (1503); the heating wire frame (1501) is arranged inside the heating slot (1403); the heating wire body (1502) is arranged inside the heating wire frame (1501); the junction box (1503) is arranged inside the heating wire frame The test container shell (16) comprises a concrete container tube (1601), a support tube edge (1602) and a tube support (1603), wherein the support tube edge (1602) is arranged at the top of the concrete container tube (1601), and the tube support (1603) is fixedly arranged at the connection between the concrete container tube (1601) and the support tube edge (1602); the temperature sensor (17) comprises a sensor bracket (1701) and a temperature sensor body (1702), wherein the temperature sensor body (1702) is inserted into the sensor bracket (1701), and the thermocouple sensing part of the temperature sensor body (1702) is located inside the concrete container tube (1601).

10. The device for testing the bonding performance of reinforced concrete at high temperature according to claim 1, characterized in that: A counter bearing bucket cover (12) is fixedly mounted on the top of the output piston of the lifting hydraulic cylinder (11); a counter bearing bucket cover (13) movably plugged into the counter bearing bucket cover (12) is fixedly mounted on the corner of the bottom surface of the bearing panel (7); the output piston of the lifting hydraulic cylinder (11) overlaps the corner of the bottom surface of the bearing panel (7) through the counter bearing bucket cover (12) and the counter bearing bucket cover (13); the counter bearing bucket cover (12) and the counter bearing bucket cover (13) are both round bucket shell structures with closed bottoms; the counter bearing bucket cover (12) and the counter bearing bucket cover (13) are both larger in top diameter than their bottom diameters; and the top edge of the counter bearing bucket cover (12) overlaps the bottom surface of the bearing panel (7).

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