Angle steel member compression test loading equipment

Abstract

The utility model relates to the technical field of angle steel members, and discloses an angle steel member compression test loading device which comprises a base, the upper surface of the base is fixedly connected with a reaction frame through bolts, the reaction frame is provided with an angle steel member, and the reaction frame is provided with a first detection device and a second detection device. The first detection device is used for detecting the stress condition of the angle steel component in the vertical direction, the second detection device is used for detecting the stress condition of the angle steel component in the horizontal direction, the first detection device is provided with a fixing device, and the fixing device is used for fixing the detected angle steel component. According to the method, the compression resistance and the stability of the angle steel component can be evaluated more accurately, more reliable reference is provided for engineering application, the stress condition of the angle steel component in the vertical direction can be comprehensively understood, including the degree, the distribution, the development trend and the like of compression deformation, and the stress performance and the deformation mechanism of the angle steel component can be understood more deeply.

Description

Technical Field

[0001] The utility model relates to the technical field of angle steel components, in particular to a compression test loading device for angle steel components. Background Art

[0002] Angle steel, commonly known as angle iron, is a long steel strip with two sides perpendicular to each other and forming an angle. Angle steel can be divided into equal-leg angle steel and unequal-leg angle steel. It is widely used in various building structures and engineering structures. The existing angle steel component compression test loading equipment, such as patent CN214333736U, can detect the stress degree of angle steel components through the setting of No. 2 detection mechanism, No. 2 hydraulic rod, detection plate, card slot and No. 1 protection pad.

[0003] Since patent CN214333736U can only detect the stress condition of the angle steel component in the horizontal direction, but cannot detect the stress condition of the angle steel component in the vertical direction, the existing angle steel component compression test loading equipment cannot accurately obtain the vertical compression deformation and horizontal bending deformation data of the angle steel component during the compression process, which will cause the experimental results to deviate from the actual situation and cannot truly reflect the stress performance of the angle steel component. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the shortcomings of the prior art, the utility model provides a compression test loading device for angle steel components, which has the advantages of more accurate performance evaluation, etc., and solves the problem that the existing compression test loading device for angle steel components cannot accurately obtain the vertical compression deformation and horizontal bending deformation data of the angle steel components during the compression process, which will cause the experimental results to deviate from the actual situation and cannot truly reflect the force performance of the angle steel components.

[0006] (II) Technical solution

[0007] In order to achieve the purpose of more accurate performance evaluation, the utility model provides the following technical solutions: a compression test loading device for angle steel components, comprising a base, a reaction frame is bolted and fixedly connected to the upper surface of the base, an angle steel component is arranged on the reaction frame, a first detection device and a second detection device are arranged on the reaction frame, the first detection device is used to detect the stress condition of the angle steel component in the vertical direction, the second detection device is used to detect the stress condition of the angle steel component in the horizontal direction, and a fixing device is arranged on the first detection device, and the fixing device is used to fix the angle steel component to be detected;

[0008] The first detection device includes a jack, four screw rods, a ball joint support, a load sensor, an upper end plate, a lower end plate, a first displacement meter, a strain gauge, and a second displacement meter;

[0009] The four corners of the jack are fixedly connected to the lower surface of the horizontal plate of the reaction frame by four screw rods respectively. The telescopic end of the jack is fixedly connected to a ball joint support. A load sensor is fixedly installed on the side of the ball joint support away from the jack, and an upper end plate is fixedly connected to the side of the ball joint support close to the load sensor.

[0010] Preferably, a fixing seat is fixedly installed on the upper surface of the base corresponding to the position of the jack, a same ball joint support is fixedly installed on the upper surface of the fixing seat, and a lower end plate is fixedly installed on a side of the ball joint support away from the fixing seat.

[0011] Preferably, corresponding surfaces of the upper end plate and the lower end plate are provided with a slot, the slot is in a rhombus shape, and the side length of the slot is equal to the side length of the cross section of the angle steel member.

[0012] Preferably, first displacement meters are correspondingly installed at both ends of the upper surface of the lower end plate, and the first displacement meter is used to monitor the angular displacement of the ball joint support;

[0013] Multiple strain gauges are fixedly connected to the outer surface of the angle steel member, and the strain gauges are used to detect the strain distribution changes at various positions of the angle steel member;

[0014] The outer surface of the angle steel component is fixedly connected with a second displacement meter, and the second displacement meter is used to measure the vertical compression deformation and horizontal bending deformation of the angle steel component.

[0015] Preferably, the fixing device comprises a threaded rod, a knob and a triangular block, the threaded rod is threadedly connected to the middle position of the front surface of the lower end plate and extends to the inside of the slot and is fixedly connected to the triangular block, and the end of the threaded rod away from the triangular block is fixedly connected to the knob;

[0016] The triangular block is slidably connected to the inner wall of the slot.

[0017] Preferably, the second detection device includes two hydraulic telescopic rods and two detection plates. The corresponding surfaces of the two columns of the reaction frame are fixedly connected with the hydraulic telescopic rods, the telescopic ends of the two hydraulic telescopic rods are fixedly connected with the detection plates, and the two detection plates are provided with grooves at the positions corresponding to the angle steel components.

[0018] (III) Beneficial effects

[0019] Compared with the prior art, the utility model provides a compressive test loading device for angle steel components, which has the following beneficial effects:

[0020] 1. The angle steel component compression test loading equipment, the jack drives the upper end plate to squeeze the angle steel component on the lower end plate, which is used to detect the stress condition of the compression deformation of the angle steel component in the vertical direction, so as to more accurately evaluate the compressive capacity and stability of the angle steel component, and objectively evaluate the performance of the angle steel component, providing a more reliable reference for engineering applications. Through the detection of the first detection device, the stress condition of the angle steel component in the vertical direction can be fully understood, including the degree, distribution and development trend of the compression deformation, which helps to have a deeper understanding of the stress performance and deformation mechanism of the angle steel component.

[0021] 2. The angle steel component compression test loading equipment, the hydraulic telescopic rod drives the detection plate to extrude the angle steel component in the horizontal direction, which is used to detect the stress condition of the bending deformation of the angle steel component in the horizontal direction. By detecting the bending deformation of the angle steel component in the horizontal direction, its performance under complex stress environment can be comprehensively evaluated. By detecting this deformation, the stability of the structure under the action of horizontal force can be more accurately evaluated, providing an important basis for structural design and optimization.

[0022] 3. The angle steel component compression test loading equipment is equipped with a load sensor, a first displacement meter, a second displacement meter, and a strain gauge. The load sensor can accurately measure the pressure applied to the angle steel component to ensure the accuracy of the experimental data. The displacement meter can monitor the displacement changes of the angle steel component during the compression process in real time, so as to understand the compression deformation of the component. The strain gauge can measure the strain of the angle steel component at key positions and reflect the stress distribution and changes inside the component. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the angle steel component structure;

[0025] Figure 3 is a schematic diagram of the fixing device structure;

[0026] Figure 4 It is a schematic structural diagram of the second detection device.

[0027] In the figure: 1. base; 2. reaction frame; 3. screw rod; 4. jack; 5. ball joint support; 6. load sensor; 7. upper end plate; 8. angle steel member; 9. fixed seat; 10. lower end plate; 11. hydraulic telescopic rod; 12. detection plate; 13. strain gauge; 14. first displacement meter; 15. slot; 16. second displacement meter; 17. threaded rod; 18. triangle block; 19. knob; 20. groove. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-4 The utility model provides a new technical solution: a compressive test loading device for an angle steel member, comprising a base 1, a reaction frame 2 is fixedly connected with bolts on the upper surface of the base 1, an angle steel member 8 is arranged on the reaction frame 2, a first detection device and a second detection device are arranged on the reaction frame 2, the first detection device is used to detect the stress condition of the angle steel member 8 in the vertical direction, the second detection device is used to detect the stress condition of the angle steel member 8 in the horizontal direction, and a fixing device is arranged on the first detection device, and the fixing device is used to fix the angle steel member 8 to be detected;

[0030] The first detection device includes a jack 4, four screw rods 3, a ball joint support 5, a load sensor 6, an upper end plate 7, a lower end plate 10, a first displacement meter 14, a strain gauge 13 and a second displacement meter 16;

[0031] The four corners of the jack 4 are fixedly connected to the lower surface of the horizontal plate of the reaction frame 2 by four screw rods 3 respectively. The telescopic end of the jack 4 is fixedly connected to a ball joint support 5. A load sensor 6 is fixedly installed on the side of the ball joint support 5 away from the jack 4. The load sensor 6 can accurately measure the pressure applied to the angle steel component to ensure the accuracy of the experimental data. The side of the ball joint support 5 close to the load sensor 6 is fixedly connected to the upper end plate 7. The ball joint support 5 provides a stable and reliable support platform for the angle steel component. Due to the special design of the ball joint, it can provide support in multiple directions, ensuring that the angle steel component can maintain a stable posture when subjected to pressure, avoiding sliding, tilting or deformation, so that the angle steel component can withstand pressure more evenly when subjected to pressure, thereby more accurately evaluating its compressive resistance.

[0032] Furthermore, a fixing seat 9 is fixedly installed on the upper surface of the base 1 corresponding to the position of the jack 4 , a similar ball joint support 5 is fixedly installed on the upper surface of the fixing seat 9 , and a lower end plate 10 is fixedly installed on a side of the ball joint support 5 away from the fixing seat 9 .

[0033] Furthermore, corresponding surfaces of the upper end plate 7 and the lower end plate 10 are provided with a slot 15 , the slot 15 is in a rhombus shape, and the side length of the slot 15 is equal to the side length of the cross section of the angle steel member 8 .

[0034] Furthermore, first displacement meters 14 are correspondingly installed at both ends of the upper surface of the lower end plate 10, and the first displacement meter 14 is used to monitor the angular displacement of the ball joint support 5;

[0035] The outer surface of the angle steel member 8 is fixedly connected with a plurality of strain gauges 13, and the strain gauges 13 are used to detect the strain distribution changes at various positions of the angle steel member 8;

[0036] Among them, a second displacement meter 16 is fixedly connected to the outer surface of the angle steel component 8. The second displacement meter 16 is used to measure the vertical compression deformation and horizontal bending deformation of the angle steel component 8. The second displacement meter 16 can monitor the displacement changes of the angle steel component 8 during the compression process in real time, so as to understand the compression deformation of the component.

[0037] Furthermore, the fixing device includes a threaded rod 17, a knob 19, and a triangular block 18. The threaded rod 17 is threadedly connected to the middle position of the front surface of the lower end plate 10 and extends to the inside of the slot 15 and is fixedly connected to the triangular block 18. The end of the threaded rod 17 away from the triangular block 18 is fixedly connected to the knob 19.

[0038] Among them, the triangular block 18 is slidably connected to the inner wall of the slot 15, the angle steel component 8 is placed in the slot 15 of the lower end plate 10, the knob 19 is turned, and the threaded rod 17 drives the triangular block 18 to fix the angle steel component 8, and the jack 4 is started. The telescopic end of the jack 4 drives the ball joint support 5 and the upper end plate 7 thereon to squeeze the angle steel component 8, and the stress condition of the compression deformation of the angle steel component 8 in the vertical direction is detected. The first displacement meter 14 on both sides of the lower end plate 10 monitors the angular displacement of the ball joint support 5 to determine whether the rotation of the ball joint meets the requirements, so as to more accurately evaluate the compressive resistance and stability of the angle steel component 8, and can objectively evaluate the performance of the angle steel component 8, providing a more reliable reference for engineering applications. Through the first detection device, the stress condition of the angle steel component 8 in the vertical direction, including the degree, distribution and development trend of the compression deformation, etc., can be fully understood, which helps to have a deeper understanding of the stress performance and deformation mechanism of the angle steel component 8.

[0039] Furthermore, the second detection device includes two hydraulic telescopic rods 11 and two detection plates 12. The corresponding surfaces of the two columns of the reaction frame 2 are fixedly connected with the hydraulic telescopic rods 11. The telescopic ends of the two hydraulic telescopic rods 11 are fixedly connected with the detection plates 12. The two detection plates 12 are provided with grooves 20 at the positions corresponding to the angle steel member 8. When the force condition of the angle steel member 8 in the horizontal direction is detected, the angle steel member 8 is placed in the card slot 15 of the lower end plate 10, and the knob 19 is turned. The threaded rod 17 drives the triangular block 18 to fix the angle steel member 8, and the hydraulic pressure is started. The compression expansion rod 11 and the detection plate 12 thereon squeeze the angle steel member 8, the second displacement meter 16 is used to detect the vertical compression deformation and horizontal bending deformation of the angle steel member 8, and the strain gauge 13 on the angle steel member 8 is used to detect the strain distribution changes at various positions when the angle steel member 8 is damaged. By detecting the bending deformation of the angle steel member 8 in the horizontal direction, its performance under a complex stress environment can be comprehensively evaluated. By detecting this deformation, the stability of the structure under the action of horizontal force can be more accurately evaluated, providing an important basis for structural design and optimization.

[0040] Working principle: When using this device, place the angle steel component 8 in the slot 15 of the lower end plate 10, turn the knob 19, the threaded rod 17 drives the triangular block 18 to fix the angle steel component 8, start the jack 4, and the telescopic end of the jack 4 drives the ball joint support 5 and the upper end plate 7 thereon to squeeze the angle steel component 8, and detect the stress condition of the compression deformation of the angle steel component 8 in the vertical direction. The first displacement meter 14 on both sides of the lower end plate 10 monitors the angular displacement of the ball joint support 5 to determine whether the rotation of the ball joint meets the requirements, so as to more accurately evaluate the compressive capacity and stability of the angle steel component 8, and can objectively evaluate the performance of the angle steel component 8, providing a more reliable reference for engineering applications. Through the first detection device, the stress condition of the angle steel component 8 in the vertical direction can be fully understood, including the degree, distribution and development trend of the compression deformation, which helps to have a deeper understanding of the stress performance and deformation mechanism of the angle steel component 8.

[0041] When testing the stress condition of the angle steel member 8 in the horizontal direction, place the angle steel member 8 in the slot 15 of the lower end plate 10, turn the knob 19, and the threaded rod 17 drives the triangular block 18 to fix the angle steel member 8. Start the hydraulic telescopic rod 11 and the detection plate 12 thereon to squeeze the angle steel member 8. The second displacement meter 16 is used to detect the vertical compression deformation and horizontal bending deformation of the angle steel member 8. The strain gauge 13 on the angle steel member 8 is used to detect the strain distribution changes at various positions when the angle steel member 8 is damaged. By detecting the bending deformation of the angle steel member 8 in the horizontal direction, its performance under complex stress environments can be comprehensively evaluated. By detecting this deformation, the stability of the structure under horizontal force can be more accurately evaluated, providing an important basis for structural design and optimization.

[0042] 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 compressive test loading device for angle steel components, comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly connected with a reaction frame (2) by bolts, an angle steel member (8) is arranged on the reaction frame (2), a first detection device and a second detection device are arranged on the reaction frame (2), the first detection device is used to detect the stress condition of the angle steel member (8) in the vertical direction, the second detection device is used to detect the stress condition of the angle steel member (8) in the horizontal direction, and a fixing device is arranged on the first detection device, the fixing device is used to fix the angle steel member (8) to be detected; The first detection device comprises a jack (4), four screw rods (3), a ball joint support (5), a load sensor (6), an upper end plate (7), a lower end plate (10), a first displacement meter (14), a strain gauge (13) and a second displacement meter (16); The four corners of the jack (4) are fixedly connected to the lower surface of the horizontal plate of the reaction frame (2) through four screw rods (3), and the telescopic end of the jack (4) is fixedly connected to a ball joint support (5). A load sensor (6) is fixedly installed on the side of the ball joint support (5) away from the jack (4), and an upper end plate (7) is fixedly connected to the side of the ball joint support (5) close to the load sensor (6).

2. The angle steel member compression test loading device according to claim 1 is characterized in that: A fixing seat (9) is fixedly mounted on the upper surface of the base (1) at a position corresponding to the jack (4), a similar ball joint support (5) is fixedly mounted on the upper surface of the fixing seat (9), and a lower end plate (10) is fixedly mounted on a side of the ball joint support (5) away from the fixing seat (9).

3. The angle steel member compression test loading device according to claim 2 is characterized in that: The corresponding surfaces of the upper end plate (7) and the lower end plate (10) are both provided with a clamping groove (15), the shape of the clamping groove (15) is a rhombus, and the side length of the clamping groove (15) is equal to the side length of the cross section of the angle steel component (8).

4. The angle steel member compression test loading device according to claim 3 is characterized by: First displacement meters (14) are correspondingly installed at both ends of the upper surface of the lower end plate (10), and the first displacement meter (14) is used to monitor the angular displacement of the ball joint support (5); A plurality of strain gauges (13) are fixedly connected to the outer surface of the angle steel component (8), and the strain gauges (13) are used to detect strain distribution changes at various positions of the angle steel component (8); A second displacement meter (16) is fixedly connected to the outer surface of the angle steel component (8), and the second displacement meter (16) is used to measure the vertical compression deformation and horizontal bending deformation of the angle steel component (8).

5. The angle steel member compression test loading device according to claim 1, characterized in that: The fixing device comprises a threaded rod (17), a knob (19), and a triangular block (18); the threaded rod (17) is threadedly connected to the middle position of the front surface of the lower end plate (10) and extends to the inside of the slot (15) and is fixedly connected to the triangular block (18); and the knob (19) is fixedly connected to one end of the threaded rod (17) away from the triangular block (18); The triangular block (18) is slidably connected to the inner wall of the slot (15).

6. The angle steel member compression test loading device according to claim 1, characterized in that: The second detection device comprises two hydraulic telescopic rods (11) and two detection plates (12); the corresponding surfaces of the two uprights of the reaction frame (2) are fixedly connected with the hydraulic telescopic rods (11); the telescopic ends of the two hydraulic telescopic rods (11) are fixedly connected with the detection plates (12); and the two detection plates (12) are provided with grooves (20) at positions corresponding to the angle steel components (8).

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