Frame loading test device

Abstract

The utility model discloses a frame loading test device, which comprises a column supporting assembly and a beam supporting assembly, the column supporting assembly comprises a fixed seat, a bending moment measurer and a column hoop, and two lateral supporting parts which are arranged at intervals along the front-back direction are formed on the top side of the fixed seat; the opposite sides of the two lateral supporting parts are rotationally connected with first rollers correspondingly, the rotating axes of the two first rollers extend in the vertical direction, the bottom side of the bending moment measurer is connected to the position, located between the two lateral supporting parts, of the top side of the fixing base, the column hoop is located between the two lateral supporting parts, and a column positioning space is defined in the column hoop. Supporting strips are arranged on the front side and the rear side of the column hoop correspondingly, and the two supporting strips abut against the two first rollers correspondingly. According to the utility model, the test deviation generated when the frame is fixed is reduced, the bending moment at the bottom side position of the column member of the frame can be obtained, and the accuracy of the test result is effectively improved.

Description

Technical Field

[0001] The utility model relates to a testing device, in particular to a frame loading testing device. Background Art

[0002] The frame is one of the most basic structural forms of steel structure. The understanding of its basic stress and deformation performance is the basis for the development of overall structural design methods. Structural testing is currently one of the most widely used methods for studying the stress and deformation performance of structures. When conducting steel frame structure tests in the laboratory, constraints are often imposed on the lateral beams and columns of the frame to prevent the components from prematurely deforming out of the plane and causing lateral instability. Current technical means usually arrange large support reaction frames on the sides of the frame structure. The reaction frames are in direct contact with the sides of the components, thereby playing a lateral support role. However, when conducting frame structure tests, once the frame components deform out of the plane, a large friction force will be generated between the lateral support reaction frames and the frame components, resulting in unpredictable large deviations in the test results, affecting the accuracy of the test results. Therefore, there is an urgent need for a device that can improve the accuracy of frame loading tests. Utility Model Content

[0003] The utility model aims to provide a frame loading test device to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0004] The solution of the utility model to solve the technical problem is:

[0005] A frame loading test device comprises: a column support assembly, including a fixed seat, a bending moment measuring device and a column hoop, the top side of the fixed seat is formed with two lateral support parts arranged at intervals along the front-to-back direction, the two lateral support parts are rotatably connected to the sides opposite to each other with first rollers, the rotation axes of the two first rollers extend vertically, the bottom side of the bending moment measuring device is connected to the top side of the fixed seat at a position between the two lateral support parts, the column hoop is located between the two lateral support parts, a column positioning space is formed inside the column hoop, support bars are respectively arranged on the front and rear sides of the column hoop, and the two support bars are respectively against the two first rollers; a force applying device can apply force in the left and right and / or up and down directions.

[0006] The technical solution has at least the following beneficial effects: before the test, the fixing seat is placed and fixed on the ground, and the column hoop is inserted into the outer side of the column member of the frame to be tested. At this time, the column member passes through the column positioning space, and the column hoop and the column member are relatively fixed. The column member together with the column hoop is installed between the two lateral support parts, so that the two first rollers are respectively against the support bars on the front and rear sides of the column hoop, and the bottom end of the column member is connected to the top side of the bending moment measuring device, so that the column member and the column support assembly of the steel frame are relatively fixed. During the test, the force-applying device applies a horizontal force to the frame at the top of the column, or applies a vertical force to the frame at the top of the column, or applies a horizontal and vertical force to the frame, and the bending moment at the bottom of the frame column is measured by the bending moment measuring device. When the frame undergoes out-of-plane deformation, the column hoop for positioning the column member contacts the first roller, and a relative displacement occurs in the horizontal direction. The first roller is used to effectively reduce the friction of the contact point, reduce the test deviation, and obtain the bending moment at the bottom of the frame column, effectively improving the accuracy of the test results.

[0007] As a further improvement of the above technical solution, the utility model also includes a beam support assembly, the beam support assembly includes a reaction frame and a beam fixing frame, the beam fixing frame is installed on the reaction frame, the beam fixing frame is surrounded by a channel that runs through in the horizontal direction, the inner front side and the inner rear side of the channel are respectively provided with second rollers, and the rotation axes of the two second rollers extend vertically. When fixing the frame, the beam support assembly is used to constrain the frame beam. Specifically, the reaction frame is placed and fixed, and the beam component is passed through the channel in the beam fixing frame. The second rollers on the inner front side and the inner rear side of the channel are respectively pressed against the two sides of the beam component to form a lateral constraint. The second rollers are used to effectively reduce the friction at the lateral constraint of the beam, which can reduce the test deviation and effectively improve the accuracy of the test results.

[0008] As a further improvement of the above technical solution, the beam fixing frame includes a connecting portion, a transition portion and a side limiting portion, the connecting portion is connected to the reaction frame, the transition portion can be movable and positioned along the front-to-back direction at the bottom side of the connecting portion, the side limiting portion can be positioned along the front-to-back direction at the bottom side of the transition portion, two side limiting portions are arranged at intervals along the front-to-back direction, and the two second rollers are respectively arranged on the sides of the two side limiting portions facing each other. The two side limiting portions are spaced at intervals along the front-to-back direction at the bottom side of the transition portion to form a space for positioning the beam, the two side limiting portions can adjust their positions along the left and right front-to-back directions at the bottom side of the transition portion to adapt to the front-to-back width of the beam component, and then the two side limiting portions are fixed to the bottom side of the transition portion, the connecting portion is used to connect and fix to the reaction frame, and the two side limiting portions can be directly adjusted along the front-to-back direction according to the use needs to form a spatial position for limiting the beam component, which greatly improves the applicability of the beam component.

[0009] As a further improvement of the above technical solution, an upper bearing seat and a lower bearing seat are respectively arranged on each of the side limiting parts, and the upper bearing seat and the lower bearing seat can be moved and positioned in the up and down directions on the side limiting parts, and the upper and lower ends of the second roller are respectively rotatably connected between the upper bearing seat and the lower bearing seat. An upper bearing seat and a lower bearing seat are respectively arranged on each of the side limiting parts, and the second roller is rotatably connected between the upper bearing seat and the lower bearing seat. When in use, the installation height of the second roller can be adjusted by adjusting the positions of the upper bearing seat and the lower bearing seat on the side limiting parts, so that the second roller can better contact with the frame beam, and is suitable for different cross-section types and specifications, thereby improving the flexibility and applicability of the lateral support of the beam.

[0010] As a further improvement of the above technical solution, the force-applying device includes a horizontal jack and a vertical jack, wherein the horizontal jack has an active end that can approach or move away from the channel, and the vertical jack has an active end that can approach or move away from the column positioning space. The horizontal jack and the vertical jack can be respectively installed and fixed on the structural parts of the peripheral device. When the frame needs to be tested, the horizontal jack can be selected to apply force in the horizontal direction according to the use needs, or the vertical jack can be used to apply force in the up and down directions.

[0011] As a further improvement of the above technical solution, the vertical jack is connected to the reaction frame in a sliding manner in the horizontal direction. The vertical jack is installed on the reaction frame to maintain the connection between the vertical jack and the reaction frame. When the horizontal jack is used to apply force to the frame, the friction between the vertical jack and the reaction frame can be effectively reduced due to the sliding connection between the vertical jack and the reaction frame, thereby further improving the accuracy of the frame loading test.

[0012] As a further improvement of the above technical solution, the reaction frame includes a support part and a connecting beam, the support part includes a support column and a connecting seat, two support columns are arranged at intervals along the front-back direction, the connecting seat is connected between the two support columns, the connecting seat can move and position on the two support columns in the up-down direction, two connecting seats are arranged at intervals along the up-down direction, a positioning gap is formed between the two connecting seats, the support part is arranged at intervals along the horizontal direction, the two ends of the connecting beam pass through the two positioning gaps respectively, and the beam fixing frame is connected to the connecting seat located on the bottom side. The two support columns are installed on the external structural parts to realize the installation and fixation of the support part, and then the height of the connecting seat is adjusted up and down to realize the adjustment of the installation height of the connecting beam. After the adjustment is completed, the two ends of the connecting beam are respectively passed through the positioning gaps of the two support parts, and the connecting beam is installed and fixed on the two connecting seats. In this way, a structure for supporting the installation of the beam fixing frame can be formed, and the spacing between the two support columns can avoid the beam.

[0013] As a further improvement of the above technical solution, two vertical frames are connected to the top side of the fixing seat at intervals along the front-to-back direction, and the two vertical frames are detachably connected to the fixing seat, and the two vertical frames are the two lateral support parts. When not in use, the two vertical frames can be removed from the fixing seat, and when a frame test is required, the two vertical frames are connected to the fixing seat to form a lateral support part for limiting the steel frame column components, which is convenient for storage.

[0014] As a further improvement of the above technical solution, the column hoop includes two connecting bars, the two ends of which can be moved and positioned on the two supporting bars along the length direction thereof, and the two connecting bars and the two supporting bars are arranged to form the column positioning space. The two connecting bars and the two supporting bars respectively limit and fix the four sides of the frame column component, so as to be relatively fixed on the column component.

[0015] As a further improvement of the above technical solution, a plurality of column hoops are arranged at intervals in the vertical direction. When the column member is relatively high, a plurality of column hoops are respectively sleeved on the outside of the column member, and the column member can be pressed against the first roller at different heights by the column hoops, thereby effectively improving the stability of the column member limit. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following is a brief description of the drawings required for the description of the embodiments. Obviously, the drawings described are only part of the embodiments of the present utility model, not all of the embodiments, and those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model when carrying out a frame loading test.

[0018] Figure 2 It is a three-dimensional diagram of the column support assembly of the utility model.

[0019] Figure 3 It is a three-dimensional diagram of the beam fixing frame of the utility model.

[0020] Figure 4 It is a three-dimensional diagram of the reaction frame of the utility model.

[0021] In the accompanying drawings: 11-fixed seat, 111-lateral supporting part, 112-first roller, 12-bending moment measuring device, 13-column hoop, 131-connecting bar, 132-supporting bar, 21-reaction frame, 22-beam fixing frame, 221-second roller, 222-connecting part, 223-transition part, 224-side limiting part, 225-upper bearing seat, 226-lower bearing seat, 31-horizontal jack, 32-vertical jack, 411-support column, 412-connecting seat, 413-connecting beam. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the concept, specific structure and technical effects of the utility model in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the utility model. In addition, all the connection relationships mentioned in the text do not refer to the direct connection of components, but refer to the fact that a better connection structure can be formed by adding or reducing connecting accessories according to the specific implementation situation. The various technical features in the invention can be combined interchangeably without conflicting with each other.

[0023] Reference Figure 1 A frame loading test device comprises: a column support assembly, including a fixed seat 11, a bending moment measuring device 12 and a column hoop 13, wherein the top side of the fixed seat 11 is formed with two lateral support parts 111 spaced apart along the front-to-back direction, and the two lateral support parts 111 are rotatably connected to the sides opposite to each other with first rollers 112, and the rotation axes of the two first rollers 112 extend vertically, and the bottom side of the bending moment measuring device 12 is connected to the top side of the fixed seat 11 between the two lateral support parts 111, and the column hoop 13 is located between the two lateral support parts 111, and a column positioning space is formed inside the column hoop 13, and support bars 132 are respectively arranged on the front and rear sides of the column hoop 13, and the two support bars 132 are respectively against the two first rollers 112; a force applying device can apply force in the left and right and / or up and down directions.

[0024] In the above-mentioned frame loading test device, before the test, the fixing seat 11 is placed and fixed on the ground, and the column hoop 13 is inserted into the outer side of the column component of the frame to be tested. At this time, the column component passes through the column positioning space, and the column hoop 13 is relatively fixed with the column component. The column component and the column hoop 13 are installed between the two lateral support parts 111, so that the two first rollers 112 are respectively against the support bars 132 on the front and rear sides of the column hoop 13, and the bottom end of the column component is connected to the top side of the bending moment measuring device 12, so that the column component of the steel frame is relatively fixed to the column support assembly. During the test, The force-applying device applies a force in the horizontal direction to the frame at the top of the column, or applies a force in the vertical direction to the frame at the top of the column, or applies a force in the horizontal and vertical directions to the frame, and the bending moment at the bottom of the frame column is measured by the bending moment measuring device 12. When the frame undergoes out-of-plane deformation, the column hoop 13 for positioning the column member contacts the first roller 112, and a relative displacement in the horizontal direction occurs. The first roller 112 is used to effectively reduce the friction at the contact point, reduce the test deviation, and obtain the bending moment at the bottom of the frame column, thereby effectively improving the accuracy of the test results.

[0025] The bending moment measuring device 12 includes two identical rectangular thick steel plates and four solid steel bars welded between the two steel plates. Among them, the four solid steel bars are welded at the four corners of the steel plates; four symmetrical strain gauges are arranged on the outer side of each solid steel bar; bolt holes are reserved on the upper and lower steel plates. The steel plate on the bottom side is fixed to the fixing seat 11 by bolts, and the steel plate on the top side is connected to the column member of the frame by bolts. The cross-sectional area of ​​the solid steel bar should be determined by the maximum load during the test, so that the solid steel bar is in the elastic deformation stage during the entire test process, so that the bending moment value can be directly calculated by the strain gauge.

[0026] The utility model also includes a beam support assembly, which includes a reaction frame 21 and a beam fixing frame 22. The beam fixing frame 22 is installed on the reaction frame 21. The beam fixing frame 22 is surrounded by a channel that runs through in the horizontal direction. The inner front side and the inner rear side of the channel are respectively provided with second rollers 221, and the rotation axes of the two second rollers 221 extend vertically. When fixing the frame, the beam support assembly is used to constrain the frame beam. Specifically, the reaction frame 21 is placed and fixed, and the beam component passes through the channel in the beam fixing frame 22. The second rollers 221 on the inner front side and the inner rear side of the channel are respectively pressed against the two sides of the beam component to form lateral constraints. The second rollers 221 are used to effectively reduce the friction at the lateral constraints of the beam, which can reduce the test deviation and effectively improve the accuracy of the test results.

[0027] In practical applications, a reaction wall or reaction frame 21 may also be configured. The reaction wall or reaction frame 21 has a vertical mounting surface and a bottom mounting surface that are perpendicular to each other. The fixing seat 11 and the reaction frame 21 are both mounted on the bottom mounting surface. A plurality of holes may be respectively provided on the vertical mounting surface and the bottom mounting surface to facilitate adjustment of the mounting positions of the fixing seat 11 and the reaction frame 21. In addition, there may be multiple column support assemblies and beam support assemblies. For example, the frame has two column components and one beam component. Correspondingly, the column support assemblies respectively position the two column components, and beam support assemblies are also respectively provided at both ends of the beam component, thereby forming multi-point support and stability for the entire frame.

[0028] like Figure 3 As shown, the beam fixing frame 22 includes a connecting portion 222, a transition portion 223 and a side limiting portion 224, the connecting portion 222 is connected to the reaction frame 21, the transition portion 223 can be moved and positioned along the front-to-back direction at the bottom side of the connecting portion 222, the side limiting portion 224 can be positioned along the front-to-back direction at the bottom side of the transition portion 223, two side limiting portions 224 are arranged at intervals along the front-to-back direction, the two second rollers 221 are respectively arranged on the sides of the two side limiting portions 224 that are opposite to each other, and the connecting portion 222 includes a steel plate, a vertical angle steel piece, an oblique angle steel member, and a node plate welded together. Among them, bolt holes are reserved on the two steel plates, the steel plates are connected to the reaction frame 21, and the steel plates are connected to the middle part of the lateral support of the frame beam. The vertical angle steel piece is spliced ​​into a cross-shaped section by four angle steels, and the oblique angle steel member is spliced ​​into a T-shaped section by two long limbs of angle steels; the transition part 223 includes the lower part of the lateral support of the frame beam, which is welded by angle steel members, and the angle steel members are all spliced ​​into a T-shaped section by two long limbs of angle steels; the lateral support of the frame beam is composed of a second roller 221 and a connecting block. The second roller 221 is arranged on the outer side of the angle steel member, and there are connecting blocks at both ends of the second roller 221, and bolt holes are set on the connecting blocks. The second roller 221 is fixed to the angle steel member by bolts, and the second roller 221 is in direct contact with the beam member of the frame.

[0029] The two side limiting portions 224 are spaced apart along the front-to-back direction at the bottom side of the transition portion 223 to form a space for positioning the beam. The two side limiting portions 224 can be adjusted along the left-right front-to-back direction at the bottom side of the transition portion 223 to adapt to the front-to-back width of the beam component. The two side limiting portions 224 are then fixed to the bottom side of the transition portion 223. The connecting portion 222 is used to be connected and fixed to the reaction frame 21. The two side limiting portions 224 can be directly adjusted along the front-to-back direction according to the needs of use to form a spatial position for limiting the beam component, which greatly improves the applicability of the beam component.

[0030] To facilitate the installation of the second roller 221, in the present embodiment, each of the side limiting portions 224 is respectively provided with an upper bearing seat 225 and a lower bearing seat 226, and the upper bearing seat 225 and the lower bearing seat 226 can both be movable and positioned in the up and down directions on the side limiting portion 224, and the upper and lower ends of the second roller 221 are respectively rotatably connected between the upper bearing seat 225 and the lower bearing seat 226, and the upper bearing seat 225 and the lower bearing seat 226 can be locked on the side limiting portion 224 by bolts and nuts, and long bolt holes are reserved on the side limiting portion 224, so that the upper bearing seat 225 and the bearing seat can be adjusted up and down and positioned. An upper bearing seat 225 and a lower bearing seat 226 are respectively arranged on each side limiting portion 224, and the second roller 221 is rotatably connected between the upper bearing seat 225 and the lower bearing seat 226. When in use, the installation height of the second roller 221 can be adjusted by adjusting the positions of the upper bearing seat 225 and the lower bearing seat 226 on the side limiting portion 224, so that the second roller 221 can better contact with the frame beam and is suitable for different cross-sectional types and specifications, thereby improving the flexibility and applicability of the lateral support of the beam.

[0031] The force-applying device may be a driving member on which two driving forces in different directions are formed, or two driving members. Specifically, the force-applying device includes a horizontal jack 31 and a vertical jack 32. The horizontal jack 31 has an active end that can approach or move away from the channel, and the vertical jack 32 has an active end that can approach or move away from the column positioning space. The horizontal jack 31 and the vertical jack 32 can be respectively installed and fixed on the structural members of the peripheral device. When the frame needs to be tested, the horizontal jack 31 can be selected to apply force in the horizontal direction according to the use needs, or the vertical jack 32 can be used to apply force in the up and down directions.

[0032] Furthermore, the vertical jack 32 is slidably connected to the reaction frame 21 in the horizontal direction. The vertical jack 32 is installed on the reaction frame 21 to maintain the connection between the vertical jack 32 and the reaction frame 21. When the horizontal jack 31 is used to apply force to the frame, since the vertical jack 32 and the reaction frame 21 are slidably connected, the friction between the vertical jack 32 and the frame can be effectively reduced, further improving the accuracy of the frame loading test.

[0033] like Figure 4As shown, the reaction frame 21 includes a support portion and a connecting beam 413, the support portion includes a support column 411 and a connecting seat 412, the support column 411 is provided with two at intervals along the front-to-back direction, the connecting seat 412 is connected between the two support columns 411, the connecting seat 412 can move and position on the two support columns 411 along the up-down direction, for example, the outer side of the support column 411 can be provided with a thread, and a nut can be provided on the support column 411, after the support column 411 passes through the connecting seat 412 along the up-down direction, the connecting seat 412 is clamped up and down with two nuts, the connecting seat 412 is provided with two at intervals along the up-down direction, a positioning gap is formed between the two connecting seats 412, the support portion is provided with two at intervals along the horizontal direction, the two ends of the connecting beam 413 pass through the two positioning gaps respectively, and the beam fixing frame 22 is connected to the connecting seat 412 located on the bottom side. The two support columns 411 are installed on the external structural parts to achieve the installation and fixation of the support part, and then the height of the connecting seat 412 is adjusted up and down to adjust the installation height of the connecting beam 413. After the adjustment is completed, the two ends of the connecting beam 413 are respectively passed through the positioning gaps of the two support parts, and the connecting beam 413 is installed and fixed on the two connecting seats 412. In this way, a structure for installing and supporting the beam fixing frame 22 can be formed, and the interval between the two support columns 411 can avoid the beam.

[0034] In some embodiments, two vertical frames are connected to the top side of the fixing seat 11 at intervals along the front-to-back direction, and the two vertical frames are detachably connected to the fixing seat 11, and the two vertical frames are the two lateral support parts 111. When not needed, the two vertical frames can be removed from the fixing seat 11, and when a frame test is required, the two vertical frames are connected to the fixing seat 11 to form the lateral support parts 111 for limiting the steel frame column components, which is convenient for storage.

[0035] The vertical frame includes four angle steels, two bottom plates and multiple gusset plates welded together to form a lattice steel column. The four angle steels are symmetrically distributed along the center. The bottom plate under the short column on the side of the frame column is fixed to the bottom connecting piece of the frame column by bolts, and bolt holes are left on the gusset plates.

[0036] like Figure 2 As shown, the fixing seat 11 is divided into two layers, and the upper and lower layers are welded and connected: the lower layer is composed of two channel steels and two perforated steel plates, the two channel steels are symmetrically placed at a distance, and the openings are outward, and the two perforated steel plates are welded to the flanges of the channel steels, and a plurality of stiffening ribs are welded to the web of the channel steels; the upper layer is welded by the topmost horizontal steel plate, the vertical steel plate and the stiffening steel plate, and the topmost horizontal steel plate has a plurality of bolt holes for connecting with the vertical frame and the bending moment meter 12.

[0037] The column hoop 13 includes two connecting bars 131, and the two ends of the two connecting bars 131 can be moved and positioned on the two supporting bars 132 along the length direction thereof. The two connecting bars 131 and the two supporting bars 132 are arranged to form the column positioning space. In order to enhance the stability of the connection structure of the column hoop 13, bolts and nuts can also be connected between the two connecting bars 131, so that a locking fixation is formed between the two connecting bars 131. The two connecting bars 131 and the two supporting bars 132 limit and fix the four sides of the frame column component respectively, so as to be relatively fixed on the column component.

[0038] Furthermore, the column hoops 13 are arranged at intervals in the vertical direction. When the column member is high, the column hoops 13 are respectively sleeved on the outside of the column member, and the column member can be pressed against the first roller 112 at different heights through the column hoops 13, which effectively improves the stability of the column member limit.

[0039] The preferred implementation modes of the present invention are specifically described above, but the present invention is not limited to the described embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A frame loading test device, characterized in that: include: A column support assembly comprises a fixed seat (11), a bending moment measuring device (12) and a column hoop (13); the top side of the fixed seat (11) is formed with two lateral support parts (111) spaced apart in the front-rear direction; the two lateral support parts (111) are rotatably connected to the first rollers (112) on the opposite sides thereof; the rotation axes of the two first rollers (112) extend vertically; the bottom side of the bending moment measuring device (12) is connected to the top side of the fixed seat (11) between the two lateral support parts (111); the column hoop (13) is located between the two lateral support parts (111); a column positioning space is formed inside the column hoop (13); support bars (132) are respectively arranged on the front and rear sides of the column hoop (13); the two support bars (132) are respectively abutted against the two first rollers (112); The force applying device can apply force in the left-right and / or up-down directions.

2. A frame loading test device according to claim 1, characterized in that: The invention also comprises a beam support assembly, wherein the beam support assembly comprises a reaction frame (21) and a beam fixing frame (22), wherein the beam fixing frame (22) is mounted on the reaction frame (21), wherein a channel penetrating in a horizontal direction is formed in the inner periphery of the beam fixing frame (22), wherein second rollers (221) are respectively arranged on the inner front side and the inner rear side of the channel, and the rotation axes of the two second rollers (221) both extend in a vertical direction.

3. A frame loading test device according to claim 2, characterized in that: The beam fixing frame (22) comprises a connecting portion (222), a transition portion (223) and a side limiting portion (224); the connecting portion (222) is connected to the reaction frame (21); the transition portion (223) can be moved and positioned along the front-to-back direction at the bottom side of the connecting portion (222); the side limiting portion (224) can be positioned along the front-to-back direction at the bottom side of the transition portion (223); two side limiting portions (224) are arranged at intervals along the front-to-back direction; and the two second rollers (221) are respectively arranged on the sides of the two side limiting portions (224) that are directly opposite to each other.

4. A frame loading test device according to claim 3, characterized in that: An upper bearing seat (225) and a lower bearing seat (226) are respectively arranged on each of the side limiting portions (224); the upper bearing seat (225) and the lower bearing seat (226) can both be movable and positioned in the up and down directions on the side limiting portions (224); and the upper and lower ends of the second roller (221) are respectively rotatably connected between the upper bearing seat (225) and the lower bearing seat (226).

5. A frame loading test device according to claim 2, characterized in that: The force applying device comprises a horizontal jack (31) and a vertical jack (32), wherein the horizontal jack (31) has a movable end that can move toward or away from the channel, and the vertical jack (32) has a movable end that can move toward or away from the column positioning space.

6. A frame loading test device according to claim 5, characterized in that: The vertical jack (32) is slidably connected to the reaction frame (21) in the horizontal direction.

7. A frame loading test device according to claim 2, characterized in that: The reaction frame (21) comprises a support portion and a connecting beam (413), the support portion comprises a support column (411) and a connecting seat (412), two support columns (411) are arranged at intervals along the front-rear direction, the connecting seat (412) is connected between the two support columns (411), the connecting seat (412) can move and position on the two support columns (411) along the up-down direction, two connecting seats (412) are arranged at intervals along the up-down direction, a positioning gap is formed between the two connecting seats (412), two support portions are arranged at intervals along the horizontal direction, two ends of the connecting beam (413) pass through the two positioning gaps respectively, and the beam fixing frame (22) is connected to the connecting seat (412) located at the bottom side.

8. A frame loading test device according to claim 1, characterized in that: Two vertical frames are connected to the top side of the fixing seat (11) at intervals along the front-to-back direction; the two vertical frames are detachably connected to the fixing seat (11); the two vertical frames are the two lateral support parts (111).

9. A frame loading test device according to claim 1, characterized in that: The column hoop (13) comprises two connecting bars (131), the two ends of which can be moved and positioned on the two supporting bars (132) along their length direction, and the two connecting bars (131) and the two supporting bars (132) are arranged to form the column positioning space.

10. A frame loading test device according to claim 1, characterized in that: A plurality of column hoops (13) are arranged at intervals along the up-down direction.

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