Electromagnetic induction heating-based bias loading test device for steel column bearing member

Abstract

The invention discloses a steel column bearing member bias loading test device based on electromagnetic induction heating, which comprises a frame, an electromagnetic induction coil and a loading device, and is characterized in that the frame comprises an upper beam, a lower beam and support columns connecting two ends of the upper beam and the lower beam; a loading device is arranged at the lower part of the upper beam, a loading plate is arranged at the lower part of the loading device, and a pressure sensor is arranged between the loading device and the loading plate; the two ends of the testing component are provided with object placing plates. An electromagnetic induction coil is arranged outside the test component, and the length of the electromagnetic induction coil is matched according to the test requirement. According to the invention, the electromagnetic induction coil is adopted to heat the test component, so that the requirement of the overall high-temperature bias loading test of the test component can be met, the requirement of the local high-temperature bias loading test of the test component can also be met, the heating uniformity of the steel column component is ensured, and the high-temperature bias loading test is carried out on the steel column component in combination with the loading device. And the test accuracy is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of steel structure testing, and in particular relates to a bias loading testing device for steel column-type load-bearing components based on electromagnetic induction heating. Background Art

[0002] In the field of engineering structures, steel column-type load-bearing components, including but not limited to round steel, I-beams, H-shaped steels and channel steels, are key components for supporting and transferring loads. The stability and reliability of their performance are directly related to the safety and durability of the overall structure. These components have been widely used in various types of buildings, bridges and heavy industrial equipment due to their good bearing capacity and structural efficiency. However, the complex stress state in the actual working environment, especially the combined effect of eccentric loads and high temperature environments, poses a severe challenge to the mechanical properties of steel column-type components.

[0003] Eccentric load, as a non-uniformly distributed force, can cause significant bending deformation of steel column components. This deformation not only reduces the bearing capacity of the component, but may also cause structural instability and threaten the overall safety. Under high temperature conditions, the mechanical properties of the material, such as yield strength and elastic modulus, will decrease significantly, further weakening the resistance of the component and increasing the risk of structural failure. Therefore, in-depth exploration of the mechanical response mechanism of steel column components under the combined action of high temperature and eccentric load is of vital significance for improving the overall safety performance of engineering structures and extending their service life.

[0004] However, existing testing technologies and equipment have many deficiencies when simulating such complex working conditions. The heating link is particularly tricky for traditional loading test devices when dealing with high-temperature eccentric load tests. On the one hand, for longer steel column components, the heating furnace cannot be used due to its size limitations, which greatly limits the test range; on the other hand, the overall heating method of the heating furnace cannot achieve local heating of specific areas of the component, which is crucial for studying the mechanical behavior under local high temperature effects. In addition, although flame heating provides flexibility to a certain extent, testers need to manually operate the flame heater to move it repeatedly, which is not only cumbersome and inefficient, but also difficult to ensure the uniformity of heating. Especially for long-sized components, uneven heating may lead to deviations in test results, affecting the accuracy and reliability of the research. Summary of the invention

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a bias loading test device for steel column-like load-bearing components based on electromagnetic induction heating. The electromagnetic induction heating technology is adopted to overcome the limitations of the existing heating of steel column-like components, realize non-contact heating, and ensure the uniformity of heating of steel column-like components, thereby ensuring the accuracy of high-temperature bias loading tests of steel column-like components.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is:

[0007] A bias loading test device for steel column-type load-bearing components based on electromagnetic induction heating comprises a frame, an electromagnetic induction coil and a loading device, wherein the frame comprises an upper beam, a lower beam and a support column connecting the two ends of the upper beam and the lower beam; a loading device is provided at the lower part of the upper beam, a loading plate is provided at the lower part of the loading device, and a pressure sensor is provided between the loading device and the loading plate for identifying the loading force of the loading device; a supporting plate is provided at the upper part of the lower beam, a loading head is provided on the loading plate and the supporting plate, and placement plates are provided at both ends of the test component, wherein the lower placement plate is placed on the supporting plate, and the upper placement plate is located below the loading plate; an electromagnetic induction coil is provided on the outside of the test component, and the length of the electromagnetic induction coil is adapted according to the needs of the test.

[0008] Furthermore, the loading device comprises a hydraulic cylinder or a pneumatic cylinder, the hydraulic cylinder or the pneumatic cylinder is mounted at the lower part of the upper beam, and the loading plate is mounted at the lower part of the piston rod of the hydraulic cylinder or the pneumatic cylinder.

[0009] Furthermore, the loading device includes a loading rod, a linkage rod and a pressure rod. A column is provided on the upper part of the lower beam, and a hinge support is provided on the upper end of the column. The hinge support is pivotally connected to one end of the loading rod, and the loading rod is in a lever structure on the column. A number of weights are hung on one end of the loading rod; a hanger 1 is provided at one end of the upper beam, and the lower end of the hanger 1 is pivotally connected to one end of the linkage rod, and the linkage rod is in a lever structure at the lower part of the hanger; a hanger 2 is provided at the other end of the upper beam, and the lower end of the hanger 2 is pivotally connected to one end of the pressure rod, one end of the linkage rod is connected to the loading rod through a connecting rod 1, and the other end of the linkage rod is connected to the pressure rod through a connecting rod 2, and the loading rod, the linkage rod and the pressure rod constitute a multi-stage lever structure.

[0010] Furthermore, a hook is provided on the upper part of the weight, and a hanging ring is provided on the lower part of the weight.

[0011] Furthermore, a plurality of slots are provided on one side of the storage plate, and the loading head is engaged in the slots.

[0012] Furthermore, a telescopic mechanism is provided at the lower part of the pressure rod for adjusting the distance between the test components of different lengths and the pressure rod. The telescopic mechanism includes a screw rod or a scissor jack. When the telescopic mechanism adopts a screw rod, the screw rod is threadedly connected to the pressure rod, and a pad is provided at the lower end of the screw rod; when the telescopic mechanism adopts a scissor jack, the upper end of the scissor jack is fixedly connected or slidably connected to the pressure rod. When the upper end of the scissor jack is fixedly connected to the pressure rod, the scissor jack and the pressure rod are connected by bolts; when the upper end of the scissor jack is slidably connected to the pressure rod, it is used to adjust the loading force of the pressure rod on the test component, and the lower end of the scissor jack is pivotally connected to the loading plate.

[0013] Furthermore, a sliding seat is slidably installed on the upper part of the lower beam, and an adjusting bolt is provided on one side of the sliding seat. The end of the adjusting bolt is abutted against the side wall of the lower beam to adjust the position of the hinge support; a plurality of pins are provided on the loading rod, and when the hinge support is pivotally connected to the pins at different positions, they are used to adjust the loading force.

[0014] Furthermore, the support plate is slidably mounted on the lower beam, and one side of the support plate is threadedly connected with a second adjusting bolt, the end of which abuts against a side wall of the lower beam for adjusting the position of the test component.

[0015] Furthermore, a plurality of standard sections are provided on the upper portion of the support column, a plurality of cushion blocks are provided on the upper portion of the slide seat, and the height of the cushion blocks is consistent with the height of the standard sections, and adjacent standard sections and adjacent cushion blocks are connected by bolts.

[0016] Furthermore, the upper beam and the lower part of the standard section are provided with an insertion rod, and the upper part of the standard section and the support column are provided with a sleeve that matches the insertion rod; the lower part of the hinge support and the cushion block are provided with a protrusion, and the upper part of the cushion block and the sliding seat are provided with a groove that matches the protrusion.

[0017] The beneficial effects of the present invention are:

[0018] 1) The present invention adopts electromagnetic induction coil to heat the test component, which can meet the needs of high-temperature bias loading test of the test component as a whole, and can meet the needs of high-temperature bias loading test of the test component locally. In addition, non-contact heating by electromagnetic induction coil reduces external interference and ensures the uniformity of heating of steel column components. Combined with the loading device, high-temperature bias loading test is performed on steel column components to ensure the accuracy of the test, which provides strong support for in-depth research on the mechanical behavior of steel column load-bearing components under high-temperature eccentric loads.

[0019] 2) The loading device adopts a multi-stage lever structure, which solves the problem that hydraulic cylinders and air cylinders cannot maintain pressure for a long time, and further ensures the accuracy of the test.

[0020] 3) A slot engaged with the loading head is provided on one side of the storage plate, which not only meets the requirements of bias loading under different eccentricities of the test component, but also avoids the displacement of the loading head during the test, ensuring that the loading force acts on the test component along the correct eccentric position.

[0021] 4) By arranging a telescopic mechanism at the lower part of the pressure rod, the distance between the test components of different lengths and the pressure rod is compensated, thereby meeting the requirements for testing test components of different lengths.

[0022] 5) A slide seat with adjustable position is provided on the upper part of the lower beam, and a plurality of pins with different positions are provided on the loading rod. When the hinge support is pivotally connected to the pins at different positions, the force arms at both ends of the loading rod when it is used as a lever are changed, thereby realizing the adjustment of the loading force.

[0023] 6) The support plate is slidably connected to the lower beam to facilitate adjustment of the position of the test component, which is not only convenient for adjusting the eccentricity of the loading device to the test component, but also convenient for adjusting the pressure on the test component when the loading device adopts a multi-stage lever structure.

[0024] 7) A number of standard sections are arranged on the upper part of the support column, and a number of pads with the same height as the standard sections are arranged on the upper part of the slide seat, so as to facilitate the adjustment of the height of the frame and the column according to the length of the test component. In addition, the standard sections and the pads are assembled by plug-in, so as to facilitate the rapid positioning of the frame and the column during assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Attached Figure 1 This is a usage status diagram of the bias loading test device for steel column-type load-bearing components based on electromagnetic induction heating of the present invention.

[0026] Attached Figure 2 It is a schematic diagram of the frame structure.

[0027] Attached Figure 3 This is a partial schematic diagram of the upper beam.

[0028] Attached Figure 4 It is a schematic diagram of support columns and standard sections.

[0029] Attached Figure 5 It is a schematic diagram of the column, pad and slide.

[0030] Attached Figure 6 It is a schematic diagram of the structure of slide seat 2.

[0031] Attached Figure 7 It is a schematic diagram of the placement of the test components and the storage board.

[0032] Attached Figure 8 is a schematic diagram of the loading device.

[0033] Attached Fig. 9 It is a schematic diagram of the weight structure.

[0034] In the figure, 1, frame; 11, upper beam; 12, lower beam; 13, support column; 14, standard section; 15, plug rod; 16, sleeve; 17, hanger one; 18, hanger two; 2, column; 21, hinge support; 211, protrusion; 22, pad; 23, slide seat; 231, groove; 24, adjusting bolt one; 3, storage plate; 31, slot; 32, loading plate; 33, loading head; 4, support plate; 41, adjusting bolt two; 5, electromagnetic induction coil; 6, loading device; 61, loading rod; 62, linkage rod; 63, pressure rod; 64, connecting rod one; 65, connecting rod two; 66, weight; 661, hook; 662, hanging ring; 67, telescopic mechanism; 7, test component. DETAILED DESCRIPTION

[0035] The following will be combined with the attached Figure 1-Figure 9 , the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. 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.

[0036] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0037] like Figure 1 As shown, the bias loading test device for steel column-like load-bearing components based on electromagnetic induction heating includes a frame 1, an electromagnetic induction coil 5 and a loading device 6, as shown in FIG. Figure 2 As shown, the frame 1 includes an upper beam 11, a lower beam 12 and a support column 13 connecting the upper beam 11 and the lower beam 12; a loading device 6 is provided at the lower part of the upper beam 11. Figure 8As shown, a loading plate 32 is provided at the lower part of the loading device 6, and a pressure sensor (not shown in the figure) is provided between the loading device 6 and the loading plate 32 for identifying the loading force of the loading device 6; a support plate 4 is provided at the upper part of the lower beam 12, and a loading head 33 is provided on both the loading plate 32 and the support plate 4, and a placement plate 3 is provided at both ends of the test component 7, wherein the lower placement plate 3 is placed on the support plate 4, and the upper placement plate 3 is located at the lower part of the loading plate 32; an electromagnetic induction coil 5 is provided on the outside of the test component 7, and the length of the electromagnetic induction coil 5 is determined according to the test result. Flexible selection is required to meet the needs of both the overall high-temperature bias loading test of the test component 7 and the local high-temperature bias loading test of the test component 7; in addition, the electromagnetic induction coil 5 is used to heat the test component 7, thereby realizing non-contact heating of the test component 7, reducing external interference, and ensuring the uniformity of heating of steel column-type components. Combined with the loading device 6, a high-temperature bias loading test is performed on the steel column-type components to ensure the accuracy of the test, providing strong support for in-depth research on the mechanical behavior of steel column-type load-bearing components under high-temperature eccentric loads.

[0038] As an embodiment of the present technical solution, the loading device 6 includes a hydraulic cylinder or a pneumatic cylinder (not shown in the figure), which is installed at the lower part of the upper beam 11, and the loading plate 32 is installed at the lower part of the piston rod of the hydraulic cylinder or the pneumatic cylinder.

[0039] As another embodiment of the present technical solution, in some cases, it is necessary to perform a pressure holding test on the test component 7, sometimes for half a year or even several years, and hydraulic cylinders, gas cylinders, etc. cannot meet the demand for long-term pressurization. In order to solve this problem, Figure 8As shown, the loading device 6 includes a loading rod 61, a linkage rod 62 and a pressure rod 63. A column 2 is provided on the upper part of the lower beam 12, and a hinge support 21 is provided on the upper end of the column 2. The hinge support 21 is pivotally connected to one end of the loading rod 61, so that the loading rod 61 is in a lever structure on the column 2, and a plurality of weights 66 are hung on one end of the loading rod 61; a hanger 17 is provided at one end of the upper beam 11, and the lower end of the hanger 17 is pivotally connected to one end of the linkage rod 62, so that the linkage rod 62 is in a lever structure at the lower part of the hanger 17; a hanger 2 18 is provided at the other end of the upper beam 11, and the lower end of the hanger 2 18 is pivotally connected to one end of the pressure rod 63, and the linkage rod 62 is pivotally connected to one end of the pressure rod 63. One end is connected to the loading rod 61 by a connecting rod 1 64, and the other end of the linkage rod 62 is connected to the pressure rod 63 by a connecting rod 2 65. The loading rod 61, the linkage rod 62 and the pressure rod 63 constitute a multi-stage lever structure. During the bias loading test, only a small weight 66 is required to enable the pressure rod 63 to apply a large force to the test component 7. In the present embodiment, only one linkage rod 62 is provided. In other embodiments, the number of linkage rods 62 can be flexibly set according to the actual load requirement of the bias loading. In addition, the loading device 6 using the present structure can meet the long-term pressure maintenance requirement of the test component 7 after the pressure is applied, thereby further ensuring the accuracy of the test.

[0040] like Fig. 9 As shown, a hook 661 is provided on the upper portion of the weight 66, and a hanging ring 662 is provided on the lower portion of the weight 66, so that different numbers of weights 66 can be combined according to the requirements of the loading force to adjust the loading force.

[0041] like Figure 7 As shown, a plurality of slots 31 are provided on one side of the storage plate 3, and the loading head 33 is engaged in the slot 31 to adapt to different eccentricity requirements and avoid the displacement of the loading head 33 during testing, thereby ensuring that the loading force acts on the test component 7 along the correct eccentric position.

[0042] like Figure 8As shown, a telescopic mechanism 67 is provided at the lower part of the pressure rod 63 for adjusting the distance between the test members 7 of different lengths and the pressure rod 63. The telescopic mechanism 67 includes a screw or a scissor jack. When the telescopic mechanism 67 adopts a screw, the screw is threadedly connected to the pressure rod 63, and a pad is provided at the lower end of the screw to increase the contact area between the screw and the loading plate 32; when the telescopic mechanism 67 adopts a scissor jack, the upper end of the scissor jack is fixedly connected or slidably connected to the pressure rod 63, and the upper end of the scissor jack is fixedly connected to the pressure rod 63. When the pressure rod 63 is fixedly connected, a bolt connection can be selected to facilitate the disassembly, assembly and maintenance of the scissors jack. When the upper end of the scissors jack is slidably connected to the pressure rod 63, the pressure rod 63 can adjust the loading force of the test component 7, and the lower end of the scissors jack is connected to the loading plate 32; in some embodiments, in order to ensure the verticality of the loading force, the lower end of the scissors jack is pivotally connected to the loading plate 32 (not shown in the figure), and cooperates with the slot 31 of the storage plate 3 and the loading head 33 of the loading plate 32 to ensure the verticality of the loading force.

[0043] like Figure 5 As shown, a slide 23 is slidably mounted on the upper part of the lower beam 12, and an adjusting bolt 24 is provided on one side of the slide 23. The end of the adjusting bolt 24 abuts against the side wall of the lower beam 12, and is used to adjust the position of the hinge support 21; a plurality of pins are provided on the loading rod 61, and when the hinge support 21 is pivotally connected with the pins at different positions, the force arms at both ends of the loading rod 61 are changed when it is used as a lever, thereby achieving adjustment of the loading force. In other embodiments, the loading force can be further refined and diversified by slidably connecting the hanger 17 with the upper beam 11 and providing a plurality of pins on the linkage rod 62.

[0044] like Figure 6 As shown, the support plate 4 is slidably mounted on the lower beam 12, and an adjusting bolt 41 is threadedly connected to one side of the support plate 4. The end of the adjusting bolt 41 abuts against the side wall of the lower beam 12, which is convenient for adjusting the position of the test component 7. It is not only convenient to adjust the eccentricity of the loading device 6 to the test component 7, but also convenient to adjust the pressure on the test component 7 when the loading device 6 adopts a multi-stage lever structure.

[0045] like Figure 4 , Figure 5 As shown, a plurality of standard sections 14 are provided on the upper part of the support column 13, a plurality of pads 22 are provided on the upper part of the slide seat 23, and the height of the pads 22 is consistent with the height of the standard sections 14, and adjacent standard sections 14 and adjacent pads 22 are connected by bolts, so as to facilitate the adjustment of the height of the frame 1 and the column 2 according to the length of the test component 7.

[0046] like Figure 4 , Figure 5As shown, the lower parts of the upper beam 11 and the standard section 14 are provided with an insertion rod 15, and the upper parts of the standard section 14 and the support column 13 are provided with a sleeve 16 that matches the insertion rod 15, which is convenient for rapid positioning of the upper beam 11, the standard section 14 and the support column 13 during assembly; the lower parts of the hinge support 21 and the cushion block 22 are provided with a protrusion 211, and the upper parts of the cushion block 22 and the slide seat 23 are provided with a groove 231 that matches the protrusion 211, which is convenient for rapid positioning of the hinge support 21, the cushion block 22 and the slide seat 23 group of devices.

[0047] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

Claims

1. A bias loading test device for a steel column-type load-bearing member based on electromagnetic induction heating, comprising a frame (1), an electromagnetic induction coil (5) and a loading device (6), characterized in that: The frame (1) comprises an upper beam (11), a lower beam (12) and a support column (13) connecting the upper beam (11) and the lower beam (12) at both ends; a loading device (6) is provided at the lower part of the upper beam (11), a loading plate (32) is provided at the lower part of the loading device (6), and a pressure sensor is provided between the loading device (6) and the loading plate (32) for identifying the loading force of the loading device (6); a supporting plate (4) is provided at the upper part of the lower beam (12), and a loading head (33) is provided on both the loading plate (32) and the supporting plate (4); and a placement plate (3) is provided at both ends of the test component (7), wherein the lower placement plate (3) is placed on the supporting plate (4), and the upper placement plate (3) is located at the lower part of the loading plate (32); an electromagnetic induction coil (5) is provided outside the test component (7), and the length of the electromagnetic induction coil (5) is adapted according to the needs of the test.

2. The bias loading test device for steel column load-bearing components based on electromagnetic induction heating according to claim 1 is characterized in that: The loading device (6) comprises a hydraulic cylinder or a pneumatic cylinder, the hydraulic cylinder or the pneumatic cylinder is mounted at the lower part of the upper beam (11), and the loading plate (32) is mounted at the lower part of the piston rod of the hydraulic cylinder or the pneumatic cylinder.

3. The bias loading test device for steel column load-bearing components based on electromagnetic induction heating according to claim 1 is characterized in that: The loading device (6) comprises a loading rod (61), a linkage rod (62) and a pressure rod (63); a column (2) is provided on the upper part of the lower beam (12); a hinge support (21) is provided at the upper end of the column (2); the hinge support (21) is pivotally connected to one end of the loading rod (61); the loading rod (61) is in a lever structure on the column (2); a plurality of weights (66) are suspended at one end of the loading rod (61); a hanger (17) is provided at one end of the upper beam (11); the lower end of the hanger (17) is pivotally connected to the linkage rod (62); ), and a linkage rod (62) is in a lever structure at the lower part of the hanger one (17); a hanger two (18) is provided at the other end of the upper beam (11), and the lower end of the hanger two (18) is pivotally connected to one end of a pressure rod (63); one end of the linkage rod (62) is connected to the loading rod (61) through a connecting rod one (64), and the other end of the linkage rod (62) is connected to the pressure rod (63) through a connecting rod two (65); the loading rod (61), the linkage rod (62) and the pressure rod (63) constitute a multi-stage lever structure.

4. The bias loading test device for steel column load-bearing components based on electromagnetic induction heating according to claim 3 is characterized in that: The weight (66) is provided with a hook (661) on the upper part, and a hanging ring (662) on the lower part.

5. The bias loading test device for steel column load-bearing components based on electromagnetic induction heating according to claim 3 is characterized in that: A plurality of slots (31) are provided on one side of the storage plate (3), and the loading head (33) is engaged in the slots (31).

6. The bias loading test device for steel column load-bearing components based on electromagnetic induction heating according to any one of claims 3 to 5, characterized in that: A telescopic mechanism (67) is provided at the lower part of the pressure rod (63) for adjusting the distance between the test components (7) of different lengths and the pressure rod (63). The telescopic mechanism (67) includes a screw rod or a scissor jack. When the telescopic mechanism (67) adopts a screw rod, the screw rod is threadedly connected to the pressure rod (63), and a pad is provided at the lower end of the screw rod; when the telescopic mechanism (67) adopts a scissor jack, the upper end of the scissor jack is fixedly connected or slidably connected to the pressure rod (63). When the upper end of the scissor jack is fixedly connected to the pressure rod (63), the scissor jack and the pressure rod (63) are bolted; when the upper end of the scissor jack is slidably connected to the pressure rod (63), it is used to adjust the loading force of the pressure rod (63) on the test component (7), and the lower end of the scissor jack is pivotally connected to the loading plate (32).

7. The bias loading test device for steel column load-bearing components based on electromagnetic induction heating according to claim 3 is characterized in that: A slide seat (23) is slidably mounted on the upper part of the lower beam (12); an adjusting bolt (24) is provided on one side of the slide seat (23); the end of the adjusting bolt (24) abuts against the side wall of the lower beam (12) and is used to adjust the position of the hinge support (21); a plurality of pins are provided on the loading rod (61), and when the hinge support (21) is pivotally connected to pins at different positions, the loading force is adjusted.

8. The bias loading test device for steel column load-bearing components based on electromagnetic induction heating according to claim 3 is characterized in that: The support plate (4) is slidably mounted on the lower beam (12); one side of the support plate (4) is threadedly connected with a second adjusting bolt (41); the end of the second adjusting bolt (41) abuts against the side wall of the lower beam (12) for adjusting the position of the test component (7).

9. The bias loading test device for steel column load-bearing components based on electromagnetic induction heating according to claim 7 is characterized in that: A plurality of standard sections (14) are arranged on the upper part of the support column (13), a plurality of cushion blocks (22) are arranged on the upper part of the slide seat (23), and the height of the cushion blocks (22) is consistent with the height of the standard sections (14), and adjacent standard sections (14) and adjacent cushion blocks (22) are connected by bolts.

10. The bias loading test device for steel column load-bearing components based on electromagnetic induction heating according to claim 9, characterized in that: The lower parts of the upper beam (11) and the standard section (14) are both provided with an insertion rod (15), and the upper parts of the standard section (14) and the support column (13) are both provided with a sleeve (16) that matches the insertion rod (15); the lower parts of the hinge support (21) and the cushion block (22) are both provided with a protrusion (211), and the upper parts of the cushion block (22) and the sliding seat (23) are both provided with a groove (231) that matches the protrusion (211).

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