Reinforcing steel bar pressure bearing capacity detection device for building quality supervision

Abstract

The utility model provides a steel bar bearing capacity detection device for building quality supervision, which belongs to the technical field of steel bar bearing capacity detection for building quality supervision and comprises a support table, a hydraulic machine, a pressure head, a clamping component and a deformation display component. The supporting table is of a square structure, the hydraulic machine is fixed to the top of the supporting table, and an output shaft of the hydraulic machine faces the bottom of the supporting table. The clamping assemblies are fixed to the two sides of the middle of the supporting table and used for clamping the two sides of a reinforcing steel bar. A deformation display assembly is fixed to the position between the two clamping assemblies and used for displaying deformation of the steel bar after the steel bar is pressed. The utility model provides a reinforcing steel bar bearing capacity detection device for building quality supervision, which can solve the problems of limited application range and complex operation of the existing reinforcing steel bar bearing capacity detection device.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel bar pressure bearing capacity detection for construction quality supervision, and in particular relates to a steel bar pressure bearing capacity detection device for construction quality supervision. Background Art

[0002] Rebar inspection typically covers its diameter, length, surface condition, strength, degree of corrosion, and connection method. Specific inspections can be conducted through methods such as random sampling, tensile testing, and corrosion measurements to ensure that building materials meet relevant standards and safety requirements. Rebar is a critical load-bearing component in concrete structures. Testing its bearing capacity effectively prevents deformation or damage during use, ensuring building safety. Regular inspections can promptly identify potential quality issues, reduce the risk of accidents caused by material defects, and safeguard the safety of construction workers and users. Rigorous bearing capacity testing encourages construction companies to adhere to regulatory standards, thereby improving the overall quality of the project. Structural quality issues can lead to costly repairs and reconstruction later on. Effective inspection and control can save unnecessary expenses and maintain investment returns. Many regions have clear legal and regulatory requirements for the bearing capacity of building materials and structures. Compliance inspections can ensure smooth project acceptance.

[0003] Existing steel bar bearing capacity detection devices have limited application scope and are complicated to operate. Utility Model Content

[0004] In view of this, the present invention provides a steel bar pressure bearing capacity detection device for construction quality supervision, which can solve the problems of limited application scope and complex operation of existing steel bar pressure bearing capacity detection devices.

[0005] The utility model is achieved in this way:

[0006] The utility model provides a steel bar bearing capacity detection device for construction quality supervision, which includes a support platform, a hydraulic press, a pressure head, a clamping assembly and a deformation display assembly. The support platform is a square structure, and the hydraulic press is fixed on the top of the support platform, and the output shaft of the hydraulic press is toward the bottom of the support platform; the clamping assemblies are fixed on both sides of the middle of the support platform, and the clamping assemblies are used to clamp the two sides of the steel bar; the deformation display assembly is fixed at the position between the two clamping assemblies, and the deformation display assembly is used to display the deformation of the steel bar after being compressed; the pressure head is fixedly connected to the output shaft of the hydraulic press, and is used to apply pressure to the steel bar.

[0007] On the basis of the above technical solution, the steel bar bearing capacity detection device for construction quality supervision of the present invention can also be improved as follows:

[0008] Among them, the deformation display component includes a piezoelectric ceramic piece, an indicator light and an alarm. The piezoelectric ceramic piece is arranged at the bottom of the compressed position of the steel bar. The indicator light and the alarm are connected in parallel with the piezoelectric ceramic piece through wires, forming a parallel circuit between the piezoelectric ceramic piece and the indicator light and the alarm.

[0009] Furthermore, the top of the piezoelectric ceramic sheet abuts against the initial position of the steel bar without generating any pressure.

[0010] Furthermore, the size of the piezoelectric ceramic piece is larger than the size of the compressed position of the steel bar.

[0011] Furthermore, the pressure head is a conical structure, and the position where it contacts the steel bars is set as an arc structure.

[0012] Furthermore, the support platform is made of aluminum alloy and is used to support the gravity of the hydraulic press.

[0013] Furthermore, a friction pad is fixed to the bottom of the support platform to prevent the influence of the displacement of the support platform on the test results of the bearing capacity of the steel bars.

[0014] Furthermore, the pressure head is a two-semi-ring structure, wherein the top semi-ring and the bottom semi-ring are connected by a rotating shaft on one side and fixedly connected by bolts on the other side, and the bolts are used to tighten the steel bars by spiral clamping.

[0015] Furthermore, a friction layer is fixed on the surface of the pressure head that contacts the steel bars, and the friction layer is used to further clamp the steel bars through the action of friction.

[0016] Furthermore, the friction layer is provided with dotted friction lines.

[0017] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: Support platform: square structure, made of aluminum alloy, provides a stable foundation, and the friction pad at the bottom prevents displacement to ensure detection accuracy.

[0018] Hydraulic press: Fixed on the top of the support table, it applies pressure downward through the output shaft, controls the applied force, and simulates real usage conditions.

[0019] Pressure head: conical structure, arc-shaped contact surface, can evenly distribute pressure to ensure that the steel bars are evenly compressed. The two semi-ring designs facilitate clamping and improve the clamping effect.

[0020] Clamping assembly: fixed on both sides of the support platform to ensure stable clamping of both ends of the steel bar, prevent the movement of the steel bar during the test, and ensure the reliability of the data.

[0021] Deformation display component: The piezoelectric ceramic piece monitors deformation in real time and provides status feedback through indicator lights and alarms, providing intuitive data display and timely warning of abnormal situations; the two are connected in parallel to improve safety. They can also serve as a warning when one side is damaged, ensuring the stability of the steel bar bearing capacity test results.

[0022] Compared with the prior art, the beneficial effects of the steel bar bearing capacity detection device for construction quality supervision provided by the utility model are:

[0023] The support platform features a square structure, providing a stable foundation and ensuring the robustness of the entire testing setup. Its design effectively disperses the pressure applied by the hydraulic press, preventing deformation or displacement. The support platform is typically constructed of aluminum alloy to reduce weight while maintaining high strength for ease of movement and installation. Furthermore, friction pads fixed to the base of the support platform enhance friction with the ground, preventing displacement caused by pressure fluctuations during testing, thereby ensuring accurate test results.

[0024] The hydraulic press is the core component of this device, its primary function being to apply controlled pressure to the rebar. The hydraulic press's output shaft faces the bottom of the support platform, ensuring direct pressure transmission. The hydraulic system's design allows for precise adjustment of pressure to accommodate the testing needs of rebar of varying specifications. Adjustment of the hydraulic press ensures smooth and uniform pressure application, enabling better analysis of the rebar's bearing capacity.

[0025] The pressure head is designed to ensure even distribution of pressure on the rebar. Its tapered structure allows for better concentration of pressure upon contact, while the curved surface in contact with the rebar further optimizes pressure transfer. This design effectively reduces damage caused by concentrated pressure and improves test reliability. Furthermore, a friction layer is fixed within the pressure head to increase friction with the rebar, further enhancing the clamping effect. The dotted friction pattern on this friction layer enhances grip and prevents the rebar from slipping during testing.

[0026] The clamping assembly secures the rebar on both sides, ensuring it does not move during testing. Clamping assemblies typically feature adjustable clamps to accommodate rebars of varying diameters. By applying uniform clamping force, the rebar remains stable throughout the test, ensuring accurate test results. The materials and construction of the clamping assembly should be strong and durable to withstand the stresses of long-term use.

[0027] The deformation display assembly is primarily used to monitor the real-time deformation of rebars under compression. It includes a piezoelectric ceramic disc, an indicator light, and an alarm. The piezoelectric ceramic disc, placed at the bottom of the rebar under compression, generates a tiny electrical signal when the rebar deforms. This signal, connected to the indicator light and alarm, forms a parallel circuit. When deformation is detected, the indicator light illuminates and the alarm sounds to alert the operator. This real-time monitoring function provides timely feedback on the rebar's stress state, enhancing the safety and reliability of testing.

[0028] The piezoelectric ceramic design ensures accurate monitoring even in the unstressed state, with its top abutting against the rebar at its initial position without generating pressure. Its size is larger than the rebar at the compression position, fully covering the stress-bearing area.

[0029] Double semi-ring structure of the pressure head: This design allows the steel bar to be clamped by a spiral, enhancing the clamping effect and ensuring that the steel bar does not slip or deform when pressure is applied.

[0030] Setting of friction layer: The friction layer can further clamp the steel bar through the action of friction, ensuring stable contact throughout the test process and improving the reliability of the test BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. 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 paying any creative labor.

[0032] Figure 1 The figure is a schematic diagram of the structure of a device for detecting the bearing capacity of steel bars used for construction quality supervision;

[0033] Figure 2 is a structural diagram of the clamping assembly;

[0034] Figure 3 This is a structural diagram of the deformation display component;

[0035] Figure 4 A circuit diagram of a deformation display component;

[0036] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0037] 10. Support platform; 20. Hydraulic press; 30. Pressure head; 40. Clamping assembly; 50. Deformation display assembly; 51. Piezoelectric ceramic piece; 52. Indicator light; 53. Alarm. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0039] like Figure 1-4 As shown, an embodiment of a steel bar bearing capacity detection device for construction quality supervision provided by the present invention, in this embodiment, includes a support platform 10, a hydraulic press 20, a pressure head 30, a clamping assembly 40 and a deformation display assembly 50. The support platform 10 is a square structure, with a hydraulic press 20 fixed on the top, and the output shaft of the hydraulic press 20 is toward the bottom direction of the support platform 10; the clamping assemblies 40 are fixed on both sides of the middle of the support platform 10, and the clamping assemblies 40 are used to clamp the two sides of the steel bar; the deformation display assembly 50 is fixed at the position between the two clamping assemblies 40, and the deformation display assembly 50 is used to display the deformation of the steel bar after being compressed; the pressure head 30 is fixedly connected to the output shaft of the hydraulic press 20, and is used to apply pressure to the steel bar.

[0040] Among them, in the above technical solution, the deformation display component 50 includes a piezoelectric ceramic piece 51, an indicator light 52 and an alarm 53. The piezoelectric ceramic piece 51 is arranged at the bottom of the compressed position of the steel bar. The indicator light 52 and the alarm 53 are connected in parallel with the piezoelectric ceramic piece 51 through wires, and a parallel circuit is formed between the piezoelectric ceramic piece 51 and the indicator light 52 and the alarm 53.

[0041] Furthermore, in the above technical solution, the top of the piezoelectric ceramic sheet 51 abuts against the initial position of the steel bar but no pressure is generated.

[0042] Furthermore, in the above technical solution, the size of the piezoelectric ceramic piece 51 is larger than the size of the compressed position of the steel bar.

[0043] Furthermore, in the above technical solution, the pressure head 30 is a conical structure, and the position where it contacts the steel bars is set to an arc structure.

[0044] Furthermore, in the above technical solution, the support platform 10 is made of aluminum alloy and is used to support the gravity of the hydraulic press 20.

[0045] Furthermore, in the above technical solution, a friction pad is fixed to the bottom of the support platform 10 to prevent the displacement of the support platform 10 from affecting the test results of the bearing capacity of the steel bars.

[0046] Furthermore, in the above technical solution, the pressure head 30 is a two semi-ring structure, the top semi-ring and the bottom semi-ring are connected by a rotating shaft on one side and fixed by bolts on the other side, and the bolts are used to tighten the steel bars through spiral clamping.

[0047] Furthermore, in the above technical solution, a friction layer is fixed on the surface of the pressure head 30 that contacts the steel bars, and the friction layer is used to further clamp the steel bars through the action of friction.

[0048] Furthermore, in the above technical solution, dotted friction lines are provided on the friction layer.

[0049] like Figure 4 As shown in the figure, when piezoelectric ceramics undergo electrostriction under a DC voltage, no current will flow through them. However, when they undergo electrostriction under an alternating electric field (voltage), only a very small current will flow between their positive and negative electrodes. This is because the input resistance of piezoelectric ceramics is extremely high, making them completely insulators. However, there is a conductive layer between their two electrodes, so there is a small flat capacitor. If the applied voltage is alternating, a very small AC current will flow through this capacitor.

[0050] When piezoelectric ceramics are compressed and deformed, the centers of positive and negative charges within them shift relative to each other, causing polarization. This results in bound charges of opposite signs appearing on the two surfaces of the material. This generation of positive and negative charges on the two surfaces generates a voltage, known as the piezoelectric effect. If a discharge is conducted between these two surfaces through a conductor, a current is generated instantaneously, which ceases when the potentials on the two surfaces become equal. This discharge process, similar to that of a capacitor, is instantaneous, with its duration determined by the generated voltage, the amount of charge, and the impedance of the discharge circuit.

[0051] Specifically, the principle of the present invention is: when in use, ensure that the various components of the detection device have been correctly installed and debugged. Check the oil level and working status of the hydraulic press to ensure its normal operation. According to the test requirements, select the steel bar to be tested and record its diameter and length. Place the steel bar in the center of the support table. Adjust the clamping assembly so that the clamps on both sides can tightly clamp the steel bar to ensure no slippage. Make sure that the conical part of the pressure head is accurately aligned with the center of the steel bar. Adjust the position of the pressure head so that it contacts the steel bar but does not apply pressure. Start the hydraulic press and gradually increase the pressure applied to the steel bar. When the steel bar continues to deform and applies pressure to the piezoelectric ceramic piece 51, when the piezoelectric ceramic piece 51 receives a sufficiently large force, an instantaneous current is generated to form a current loop, the indicator light 52 lights up, and the alarm 53 sounds, and the compressive capacity of the steel bar needs to be further measured; when the applied pressure value reaches the specified pressure value, the indicator light 52 and the alarm 53 do not respond, and the compressive capacity of the steel bar is good.

Claims

1. A steel bar bearing capacity detection device for building quality supervision, characterized in that: The invention comprises a support platform (10), a hydraulic press (20), a pressure head (30), a clamping assembly (40) and a deformation display assembly (50), wherein the support platform (10) is a square structure, the top of which is fixed with the hydraulic press (20), and the output shaft of the hydraulic press (20) faces the bottom direction of the support platform (10); the clamping assemblies (40) are fixed at both sides of the middle of the support platform (10), and the clamping assemblies (40) are used to clamp both sides of the steel bar; the deformation display assembly (50) is fixed at the position between the two clamping assemblies (40), and the deformation display assembly (50) is used to display the deformation of the steel bar after being compressed; the pressure head (30) is fixedly connected to the output shaft of the hydraulic press (20) and is used to apply pressure to the steel bar.

2. A steel bar bearing capacity detection device for construction quality supervision according to claim 1, characterized in that: The deformation display component (50) comprises a piezoelectric ceramic piece (51), an indicator light (52) and an alarm (53); the piezoelectric ceramic piece (51) is arranged at the bottom of the compressed position of the steel bar; the indicator light (52) and the alarm (53) are connected in parallel with the piezoelectric ceramic piece (51) via electric wires; a parallel circuit is formed between the piezoelectric ceramic piece (51) and the indicator light (52) and the alarm (53).

3. A steel bar bearing capacity detection device for construction quality supervision according to claim 2, characterized in that: The top of the piezoelectric ceramic sheet (51) abuts against the initial position of the steel bar but no pressure is generated.

4. A steel bar bearing capacity detection device for construction quality supervision according to claim 3, characterized in that: The size of the piezoelectric ceramic sheet (51) is larger than the size of the compressed position of the steel bar.

5. A steel bar bearing capacity detection device for construction quality supervision according to claim 4, characterized in that: The pressure head (30) is a conical structure, and the position where it contacts the steel bar is set as an arc structure.

6. A steel bar bearing capacity detection device for construction quality supervision according to claim 5, characterized in that: The support platform (10) is made of aluminum alloy and is used to support the gravity of the hydraulic press (20).

7. A steel bar bearing capacity detection device for construction quality supervision according to claim 6, characterized in that: A friction pad is fixed to the bottom of the support platform (10) to prevent the displacement of the support platform (10) from affecting the test results of the bearing capacity of the steel bars.

8. A steel bar bearing capacity detection device for construction quality supervision according to claim 7, characterized in that: The pressure head (30) is a two-semi-ring structure, wherein the top semi-ring and the bottom semi-ring are connected by a rotating shaft on one side and fixedly connected by bolts on the other side, and the bolts are used to clamp the steel bars by spiral means.

9. A steel bar bearing capacity detection device for construction quality supervision according to claim 8, characterized in that: A friction layer is fixed on the surface of the pressure head (30) that contacts the steel bar, and the friction layer is used to further clamp the steel bar through the action of friction.

10. A steel bar bearing capacity detection device for construction quality supervision according to claim 9, characterized in that: The friction layer is provided with dotted friction lines.

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