Automatic detection equipment for performance of precast beam and slab structural member

Abstract

The utility model discloses a precast beam slab structural member performance automation detection equipment, which comprises a pressurization system, a measurement system and a control system, and is characterized in that the pressurization system comprises an outer support frame, a plurality of groups of jacks are uniformly distributed on the horizontal positioning surface of the outer support frame, and the jacks are externally connected with a hydraulic testing machine and used for applying load to a precast beam slab structural member; an inner supporting frame is arranged below the outer supporting frame and used for supporting a precast beam and slab structural part. The measuring system comprises a displacement sensor, and the displacement sensor is installed at the bottom of the precast beam and slab structural member. The control system comprises a force sensor, a computer and a signal processor, the force sensor is mounted at the end of the jack and used for measuring actual uniform force borne by the precast beam and slab structural member and feeding back pressure signals, the signal processor is used for receiving signals of the displacement sensor, and the computer is used for analyzing the signals of the signal processor and displaying results. And the computer is also used for issuing an action instruction to the hydraulic testing machine through the signal processor.

Description

Technical Field

[0001] The utility model relates to the technical field of precast concrete loading tests, in particular to automatic performance detection equipment for precast beam and slab structural parts. Background Art

[0002] Precast concrete components require short-term static loading tests for structural performance testing. Plate-type components require a uniformly distributed load, ideally using graded loading blocks of uniform weight and regular shape. However, traditional loading methods rely on workers manually carrying load blocks of rated weight for loading. This is labor-intensive, time-consuming, and extremely inefficient. Furthermore, the handling process can be prone to problems such as improper handling, uneven placement, slow loading at each level, and the inability to precisely control the load, seriously affecting the accuracy of the test results. Utility Model Content

[0003] In response to the above technical problems, the utility model proposes an automated testing equipment for the performance of prefabricated beam and slab structural components. The automated testing equipment can quickly and accurately apply various levels of loads to the components, and can make corresponding adjustments in a timely manner according to the test conditions. It is efficient and systematic, and compared with traditional testing methods, it can significantly reduce testing costs and improve testing efficiency.

[0004] An automatic testing device for the performance of prefabricated beam and slab structural components, including a pressurizing system, a measuring system and a control system.

[0005] The pressurizing system includes an outer support frame, a plurality of jacks are evenly distributed on the horizontal positioning surface of the outer support frame, the jacks are externally connected to a hydraulic testing machine for applying load to the precast beam and slab structural members, and an inner support frame is provided below the outer support frame, the inner support frame is used to support the precast beam and slab structural members;

[0006] The measurement system includes a displacement sensor, which is installed at the bottom of the prefabricated beam and slab structure;

[0007] The control system includes a force sensor, a computer and a signal processor. The force sensor is installed at the top of the jack and is used to measure the actual uniformly distributed force on the prefabricated beam and slab structural components and to feed back a pressure signal. The signal processor is used to receive the signal from the displacement sensor. The computer is used to analyze the signal processor signal and display the result. The computer is also used to issue action instructions to the hydraulic testing machine through the signal processor.

[0008] As a preferred embodiment of the above technical solution, the outer support frame is welded by support legs and multiple beams, the horizontal positioning surface of the outer support frame is composed of multiple parallel sliding rails, the sliding rails are rigidly connected to the beams, and the jack is limited on the sliding rails by fixed supports.

[0009] As a preferred embodiment of the above technical solution, the support legs adopt hydraulic telescopic supports, and the crossbeam is driven to rise and fall synchronously by the hydraulic telescopic supports.

[0010] As a preferred embodiment of the above technical solution, the top surface of the prefabricated beam and slab structure and the top surface of the inner support frame are both provided with rubber pads.

[0011] As a preferred embodiment of the above technical solution, a pad is fixed to the end of the jack.

[0012] The beneficial effects of the present invention are:

[0013] 1. Simple structure, low manufacturing cost and easy maintenance.

[0014] 2. The position and number of jacks can be flexibly adjusted according to components of different sizes.

[0015] 3. Accurately and quickly calculate and apply the load required for testing, and adjust the pressure in real time, significantly shortening the testing time and reducing the testing cost.

[0016] 4. Real-time adjustment can be made based on the loading situation fed back by the force sensor to achieve closed-loop feedback control of loading.

[0017] 5. Ability to obtain detection results in real time, obtain component deformation images, and improve detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the main view of the present utility model.

[0019] Figure 2 It is a top view of the utility model.

[0020] Figure 3 This is the automatic detection flow chart.

[0021] The accompanying drawings are marked as follows: 1-external support frame, 101-support leg, 102-crossbeam, 2-jack, 3-prefabricated beam and slab structure, 4-inner support frame, 5-displacement sensor, 6-fixed support, 7-rubber pad, 8-pad. DETAILED DESCRIPTION

[0022] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] like Figure 1 、 Figure 2 The device shown is an automatic performance detection device for prefabricated beam and slab structural components, including a pressurizing system, a measuring system and a control system.

[0024] The pressurizing system includes an outer support frame 1, a plurality of jacks 2 are evenly distributed on the horizontal positioning surface of the outer support frame 1, and the jacks 2 are externally connected to a hydraulic testing machine for applying load to the precast beam and slab structure 3. An inner support frame 4 is provided below the outer support frame 1, and the inner support frame 4 is used to support the precast beam and slab structure 3;

[0025] The measurement system includes a displacement sensor 5, which is installed at the bottom of the prefabricated beam and slab structure 3;

[0026] The control system includes a force sensor, a computer and a signal processor. The force sensor is installed at the end of the jack 2 and is used to measure the actual uniform force exerted on the prefabricated beam and slab structural member 3 and to feed back a pressure signal. The signal processor is used to receive the signal from the displacement sensor 5. The computer is used to analyze the signal processor signal and display the result. The computer is also used to issue action instructions to the hydraulic testing machine through the signal processor.

[0027] In this embodiment, the outer support frame 1 is welded by support legs 101 and multiple cross beams 102. The horizontal positioning surface of the outer support frame 1 is composed of multiple parallel sliding rails 103. The sliding rails 103 are rigidly connected to the cross beams 102. The jack 2 is limited by a fixed support 6 installed on the cross beam 102.

[0028] In this embodiment, the support legs 101 are hydraulically telescopically supported, and the crossbeam 102 is driven to rise and fall synchronously by the hydraulically telescopic support.

[0029] In this embodiment, the top surface of the prefabricated beam and slab structure 3 and the top surface of the inner support frame 4 are both provided with rubber pads 7 .

[0030] In this embodiment, a backing plate 8 is fixed to the end of the jack 2 .

[0031] The working principle of this embodiment is as follows.

[0032] 1. Install a certain number of jacks 2 on the supporting beam 102 according to the size of the precast beam and slab structure 3 to be tested. Secure the jacks 2 with fixed supports 6. Connect the supporting beam 102 to the hydraulic telescopic support with connectors. Evenly distribute the jacks 2 on the precast beam and slab structure 3 to be tested. Install a force sensor at the lower end of the precast beam and slab structure 3 to be tested.

[0033] 2. Place the precast beam and slab structure 3 to be tested on the support of the inner support frame 4 and fix it. To prevent local brittle failure of the precast beam and slab structure 3, lay a rubber pad 7 on the precast beam and slab component to be tested, and place a pad 8 at the end of the jack 2.

[0034] 3. Calculate the design load and loading speed of the component, input the load value at each level into the control terminal, and the signal processor transmits the oil pressure signal to the hydraulic testing machine (the hydraulic testing machine used to drive the hydraulic telescopic support is not shown in the attached figure). The hydraulic telescopic support descends to load the precast beam and slab structural member 3;

[0035] 4. During the loading process, the displacement sensor 5 measures the deformation of the specified position of the precast beam and slab structure 3, and the signal processor converts the displacement signal into an electrical signal and transmits it to the control terminal, thereby obtaining the deformation of the component at each level of loading.

[0036] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An automated performance testing device for prefabricated beam and slab structural components, characterized by: Including pressurization system, measurement system and control system, The pressurizing system includes an outer support frame, a plurality of jacks are evenly distributed on the horizontal positioning surface of the outer support frame, the jacks are externally connected to a hydraulic testing machine for applying load to the precast beam and slab structural members, and an inner support frame is provided below the outer support frame, the inner support frame is used to support the precast beam and slab structural members; The measurement system includes a displacement sensor, which is installed at the bottom of the prefabricated beam and slab structure; The control system includes a force sensor, a computer and a signal processor. The force sensor is installed at the top of the jack and is used to measure the actual uniformly distributed force on the prefabricated beam and slab structural components and to feed back a pressure signal. The signal processor is used to receive the signal from the displacement sensor. The computer is used to analyze the signal processor signal and display the result. The computer is also used to issue action instructions to the hydraulic testing machine through the signal processor.

2. The automated testing equipment according to claim 1, characterized in that: The outer support frame is welded by supporting legs and multiple beams. The horizontal positioning surface of the outer support frame is composed of multiple parallel sliding rails. The sliding rails are rigidly connected to the beams. The jack is limited on the sliding rails by fixed supports.

3. The automated testing equipment according to claim 2, characterized in that: The supporting legs are supported by hydraulic telescopic supports, and the crossbeam is driven to rise and fall synchronously by the hydraulic telescopic supports.

4. The automated testing equipment according to claim 1, wherein: The top surface of the prefabricated beam and slab structural member and the top surface of the inner support frame are both provided with rubber pads.

5. The automated testing equipment according to claim 1, characterized in that: A backing plate is fixed to the end of the jack.

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