A Y-shaped component compression test loading device

Abstract

The present invention discloses a Y-shaped component compression test loading device, comprising a base fixedly mounted on a reaction wall, the base being connected to a straight end of the Y-shaped component to be tested, two branch ends of the Y-shaped component being connected with a loading structure, the loading mechanism comprising a loading head, a jack structure and a reaction structure being connected to the branch ends of the Y-shaped component and sequentially arranged along the transverse direction, by respectively arranging the loading mechanisms at the two branch ends of the unequal-limb Y-shaped column, the loading mechanism can simulate the influence of the roof structure on the stress performance of the Y-shaped column, more realistically study the actual stress performance of the Y-shaped column, and realize compressive loading of the Y-shaped column; in addition, the loading mechanism can be flexibly adjusted according to the branch length of the specimen, has the advantages of simple assembly, flexible loading and strong applicability, and each component can be disassembled at any time, which is convenient for transportation and storage, thereby solving the problem that conventional electro-hydraulic servo pressure testing machines have a small space and are difficult to perform compression tests on large unequal-limb Y-shaped columns.

Description

Technical Field

[0001] The invention belongs to the technical field of structural testing and relates to a testing device, in particular to a Y-shaped component compression testing loading device. Background Art

[0002] As a new type of structural component, the Y-shaped column, with its aesthetically pleasing design and rational load-bearing properties, has seen increasing adoption in large public buildings in recent years. As a primary structural component, the safety and reliability of the Y-shaped column significantly impact the overall structural safety. Studying the mechanical properties and failure mechanisms of Y-shaped columns under compression is fundamental to understanding their load-bearing performance, and experimental research is the most direct and effective approach to studying their load-bearing properties.

[0003] Since the Y-shaped column is a special-shaped structural component with large size and many stress points, the conventional electro-hydraulic servo pressure testing machine provides a small test space, a single loading method, few loading points, and it is difficult to consider the influence of the roof structure on the stress performance of large unequal-limb Y-shaped columns, which cannot meet the requirements of Y-shaped column test research. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a Y-shaped component pressure test loading device to solve the technical problem in the existing technology that the conventional electro-hydraulic servo pressure testing machine has a small space and is difficult to perform pressure tests on large unequal-limb Y-shaped columns.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A Y-shaped component compression test loading device includes a base fixedly mounted on a reaction wall, the base being connected to a straight end of the Y-shaped component to be tested, and the two branch ends of the Y-shaped component being connected to a loading structure;

[0007] The loading mechanism includes a loading head, a jack structure, and a reaction force structure connected to the branch ends of the Y-shaped member and arranged in sequence along the transverse direction. A connecting rod is provided between the two loading heads, and the other ends of the two loading heads are connected to a support structure.

[0008] The reaction structure includes two bottom beams and two "X"-shaped support beams. The two ends of each "X"-shaped support beam are respectively fixed to the same end of the two bottom beams. The tops of the two "X"-shaped support beams are fixed with a reaction beam. The reaction beam is fixed to the reaction wall 1 by screws.

[0009] The jack structure includes a roller detachably connected to the reaction beam, the horizontal rear end of the roller is vertically and fixedly connected to one end of the jack, and the telescopic end of the jack is in vertical contact with the load sensor fixed on the loading head;

[0010] The loading head includes two parallel first connecting plates, one of which is parallelly mounted with a flange plate, and the flange plate is fixedly connected to the sleeve and the load sensor by bolts; a plurality of first ribs are provided between the two first connecting plates and between the flange plate and the adjacent first connecting plate; both longitudinal ends of the flange plates are provided with first one-way hinges; the transverse rear end of the first connecting plate is provided with a branch end mounting hole, the shape and size of the branch end mounting hole being adapted to the shape of the branch end of the Y-shaped member;

[0011] The connecting rod includes a straight rod and two second one-way hinges provided at both ends of the straight rod, wherein the second one-way hinges rotate in the same direction and are respectively connected to the first one-way hinges of the two loading heads;

[0012] The support structure includes a two-force rod with one end connected to the first one-way hinge of the loading head, and the other end of the two-force rod is connected to the third one-way hinge arranged on the side of the elastic reaction beam. A triangular support frame fixed to the ground is provided on both lateral sides of the other side of the elastic reaction beam.

[0013] The present invention also includes the following technical features:

[0014] The base includes two first vertical beams fixed in parallel on the reaction wall, a first horizontal beam is fixed between the two first vertical beams, and a straight end mounting hole is opened on the middle side wall of the first horizontal beam, the shape and size of which are adapted to the straight end of the Y-shaped component.

[0015] A plurality of first stiffening ribs are evenly distributed around the Y-shaped component mounting hole.

[0016] The reaction beam includes two parallel wing plates, and web plates are provided at both ends of the space surrounded by the two wing plates. A plurality of second rib plates parallel to the web plates are provided in the rectangular space surrounded by the two wing plates and the two web plates; a plurality of second connecting plates are provided on the transverse rear end face of one of the wing plates, and a connecting hole is provided at the four corners of the two wing plates, each of the screw rods is fixed through the connecting hole, and the other end of the screw rod is fixed on the reaction wall.

[0017] The triangular support frame includes a second crossbeam, the two ends of which are respectively connected to the second vertical beam and one end of the oblique beam through a large connector and a small connector, and the other ends of the second vertical beam and the oblique beam are connected to form a triangle, and a third crossbeam parallel to the second crossbeam is arranged in the triangle.

[0018] The bottom beam and the "X"-shaped support beam are fixed on the ground through anchor bolts.

[0019] The telescopic end of the jack is provided with a sleeve, and the sleeve is vertically fixed on the load sensor.

[0020] The second vertical beam and the oblique beam are both provided with third reinforcing ribs.

[0021] Compared with the prior art, the present invention has the following beneficial technical effects:

[0022] The present invention provides loading mechanisms at the two ends of the unequal-limb Y-shaped column. The loading mechanisms can simulate the influence of the roof structure on the stress performance of the Y-shaped column, more realistically study the actual stress performance of the Y-shaped column, and realize compressive loading of the Y-shaped column. In addition, the loading mechanism can be flexibly adjusted according to the length of the limbs of the specimen, and has the advantages of simple assembly, flexible loading, and strong applicability. Each component can be disassembled at any time, which is convenient for transportation and storage, solving the problem that conventional electro-hydraulic servo pressure testing machines have a small space and are difficult to perform pressure tests on large unequal-limb Y-shaped columns. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 Schematic diagram of the structure of the base in the present invention;

[0025] Figure 3 Schematic diagram of the structure of the loading head in the present invention;

[0026] Figure 4 It is a structural schematic diagram of the jack structure in the present invention;

[0027] Figure 5 Schematic diagram of the structure of the reaction force structure in the present invention;

[0028] Figure 6 for Figure 5 Schematic diagram of the structure of the reaction beam;

[0029] Figure 7 Schematic diagram of the structure of the connecting rod in the present invention;

[0030] Figure 8 Schematic diagram of the support structure of the present invention;

[0031] Figure 9 for Figure 8 Schematic diagram of the structure of the triangular support frame;

[0032] Figure 10 Schematic diagram of the assembly relationship between the roller and other components in the present invention.

[0033] The meanings of the numbers in the figure are: 1-reaction wall, 2-base, 3-Y-shaped member to be tested, 4-loading structure, 5-loading head, 6-jack structure, 7-reaction structure, 8-connecting rod, 9-support structure;

[0034] 201-first vertical beam, 202-first horizontal beam, 203-straight end mounting hole, 204-first stiffening rib;

[0035] 501-first connecting plate, 502-flange plate, 503-first rib plate, 504-first one-way hinge, 505-limb end mounting hole;

[0036] 601- roller, 602- jack, 603- sleeve, 604- load sensor;

[0037] 701- bottom beam, 702- I-shaped support beam, 703- reaction beam, 704- screw, 705- anchor bolt;

[0038] 801-straight rod, 802-second one-way hinge;

[0039] 901-two force rods, 902-elastic reaction beam, 903-third one-way hinge, 904-triangular support frame;

[0040] 70301-wing plate, 70302-web plate, 70303-second ribbed plate, 70304-second connecting plate, 70305-connecting hole;

[0041] 90401-second crossbeam, 90402-large connector, 90403-small connector, 90404-second vertical beam, 90405-inclined beam, 90406-third crossbeam, 90407-third reinforcement rib.

[0042] The specific contents of the present invention are further explained in detail below with reference to the embodiments. DETAILED DESCRIPTION

[0043] It should be noted that, unless otherwise specified, all components in the present invention are components known in the art.

[0044] Specific embodiments of the present invention are given below. It should be noted that the present invention is not limited to the following specific embodiments, and all equivalent modifications made on the basis of the technical solution of this application fall within the protection scope of the present invention.

[0045] The present invention provides a Y-shaped component compression test loading device, comprising a base 2 fixedly mounted on a reaction wall 1, the base 2 being connected to the straight end of a Y-shaped component 3 to be tested, and a loading structure 4 being connected to both bifurcated ends of the Y-shaped component 3;

[0046] The loading mechanism 4 includes a loading head 5, a jack structure 6, and a reaction force structure 7 connected to the bifurcated ends of the Y-shaped member 3 to be tested and arranged in sequence along the transverse direction. A connecting rod 8 is provided between the two loading heads 5. The other ends of the two loading heads 5 are each connected to a support structure 9.

[0047] The reaction structure 7 includes two bottom beams 701 and two I-shaped support beams 702. The two ends of each I-shaped support beam 702 are respectively fixed to the same end of the two bottom beams 701. The tops of the two I-shaped support beams 702 are fixed with a reaction beam 703. The reaction beam 703 is fixed to the reaction wall 1 through screws 704.

[0048] The jack structure 6 includes a roller 601 detachably connected to the reaction beam 703. The rear end of the roller 601 is vertically fixedly connected to one end of the jack 602. The telescopic end of the jack 602 is in vertical contact with the load sensor 604 fixed to the loading head 5.

[0049] The loading head 5 includes two parallel first connecting plates 501, one of which has a flange plate 502 mounted parallel to it. The flange plate 502 is fixedly connected to the sleeve 603 and the load sensor 604 by bolts 10. A plurality of first ribs 503 are provided between the two first connecting plates 501 and between the flange plate 502 and the adjacent first connecting plate 501. The longitudinal ends of the flange plates 502 are each provided with a first one-way hinge 504. The transverse rear end of the first connecting plate 501 is provided with a branch end mounting hole 505. The shape and size of the branch end mounting hole 505 are adapted to the shape of the branch end of the Y-shaped member 3.

[0050] The connecting rod 8 includes a straight rod 801 and two second one-way hinges 802 provided at both ends of the straight rod 801. The second one-way hinges 802 rotate in the same direction and are respectively connected to the first one-way hinges 504 of the two loading heads 5.

[0051] The support structure 9 includes a two-force rod 901, one end of which is connected to the first one-way hinge 504 of the loading head 5, and the other end of the two-force rod 901 is connected to a third one-way hinge 903 arranged on the side of the elastic reaction beam 902. A triangular support frame 904 fixed to the ground is provided on both lateral sides of the other side of the elastic reaction beam 902.

[0052] In the above technical solution, the bottom of the Y-shaped component to be tested is first fixed to the reaction wall 1 through the base 2, and the two limbs of the Y-shaped component to be tested are laterally loaded through the loading head 5, the jack structure 6 and the reaction structure 7 in the two sets of loading structures 4. The jack structure 6 transmits the loading reaction force to the reaction wall 1 through the reaction beam 703 and the long screw. The support structure 9 provides a longitudinal constraint force perpendicular to the loading direction for the Y-shaped component to be tested. The roller 601 in the jack structure 6 ensures that the loading force direction is perpendicular to the reaction wall during the loading process.

[0053] This device sets a loading mechanism 4 at the two ends of the unequal-limb Y-shaped column. The loading mechanism 4 can simulate the influence of the roof structure on the stress performance of the Y-shaped column, study the actual stress performance of the Y-shaped column more realistically, and realize the compressive loading of the Y-shaped column; in addition, the loading mechanism 4 can be flexibly adjusted according to the length of the limbs of the test piece, and has the advantages of simple assembly, flexible loading and strong applicability. The various components can be disassembled at any time, which is convenient for transportation and storage, solving the problem that the conventional electro-hydraulic servo pressure testing machine has a small space and is difficult to perform pressure tests on large unequal-limb Y-shaped columns.

[0054] Specifically, the base 2 includes two first vertical beams 201 fixed in parallel on the reaction wall 1, a first horizontal beam 202 is fixed between the two first vertical beams 201, and a straight end mounting hole 203 is opened on the middle side wall of the first horizontal beam 202, the shape and size of which are adapted to the straight end of the Y-shaped component 3 to be measured.

[0055] Specifically, a plurality of first stiffening ribs 204 are evenly distributed around the straight end mounting hole 203 to ensure a stable connection between the first beam 202 and the Y-shaped member 3 to be tested, and to ensure that the Y-shaped member 3 to be tested can be perpendicular to the reaction wall 1 .

[0056] Specifically, the reaction beam 703 includes two parallel wing plates 70301, and web plates 70302 are provided at both ends of the space enclosed by the two wing plates 70301. A plurality of second rib plates 70303 parallel to the web plates 70302 are provided in the rectangular space enclosed by the two wing plates 70301 and the two web plates 70302; a plurality of second connecting plates 70304 are provided on the transverse rear end face of one of the wing plates 70301, and a connecting hole 70305 is provided at the four corners of the two wing plates 70301, and each of the screw rods 704 is fixed through the connecting hole 70305, and the other end of the screw rod 704 is fixed on the reaction wall 1.

[0057] See also Figure 10 The second connecting plate 70304 is used to install the roller 601 on the reaction beam 703.

[0058] Specifically, the triangular support frame 904 includes a second horizontal beam 90401, and the two ends of the second horizontal beam 90401 are respectively connected to the second vertical beam 90404 and one end of the oblique beam 90405 through a large connecting head 90402 and a small connecting head 90403. The other ends of the second vertical beam 90404 and the oblique beam 90405 are connected to form a triangle. A third horizontal beam 90406 parallel to the second horizontal beam 90401 is provided in the triangle to stabilize the whole.

[0059] Specifically, the bottom beam 701 and the I-shaped support beam 702 are fixed to the ground by anchor bolts 705, which facilitates fixing and disassembly.

[0060] Specifically, the telescopic end of the jack 602 is provided with a sleeve 603, which is vertically fixed on the load sensor 604. The sleeve 603 is used to ensure that the telescopic end of the jack 602 is in vertical contact with the load sensor, and also locates the center of the force of the jack 602.

[0061] Specifically, third reinforcing ribs 90407 are provided inside the second vertical beam 90404 and the oblique beam 90405 to strengthen the rigidity of the second vertical beam 90404 and the oblique beam 90405.

Claims

1. A Y-shaped member compression test loading device, comprising a base (2) fixedly mounted on a reaction wall (1), the base (2) being connected to a straight end of a Y-shaped member (3) to be tested, and a loading mechanism (4) being connected to both bifurcated ends of the Y-shaped member (3), characterized in that: The loading mechanism (4) comprises a loading head (5), a jack structure (6) and a reaction force structure (7) connected to the branch end of the Y-shaped component (3) to be tested and arranged in sequence along the transverse direction, a connecting rod (8) is provided between the two loading heads (5), and the other ends of the two loading heads (5) are connected to a support structure (9); The reaction structure (7) comprises two bottom beams (701) and two I-shaped support beams (702), the two ends of each I-shaped support beam (702) being fixed to the same end of the two bottom beams (701), and a reaction beam (703) being fixedly provided on the top of the two I-shaped support beams (702), and the reaction beam (703) being fixed to the reaction wall (1) via a screw (704); The jack structure (6) includes a roller (601) detachably connected to a reaction beam (703), a lateral rear end of the roller (601) being vertically and fixedly connected to one end of a jack (602), and a telescopic end of the jack (602) being in vertical contact with a load sensor (604) fixed on a loading head (5); The loading head (5) comprises two first connecting plates (501) arranged in parallel, wherein a flange plate (502) is mounted in parallel on one of the first connecting plates (501), and the flange plate (502) is fixedly connected to the sleeve (603) and the load sensor (604) by bolts (10); a plurality of first ribs (503) are arranged between the two first connecting plates (501) and between the flange plate (502) and a first connecting plate (501) adjacent thereto, and a first one-way hinge (504) is arranged at both longitudinal ends of the flange plate (502), and a limb end mounting hole (505) is opened at the transverse rear end of the first connecting plate (501), and the shape and size of the limb end mounting hole (505) are adapted to the shape of the limb end of the Y-shaped member (3); The connecting rod (8) comprises a straight rod (801) and two second one-way hinges (802) provided at both ends of the straight rod (801), wherein the second one-way hinges (802) rotate in the same direction and are respectively connected to the first one-way hinges (504) of the two loading heads (5); The support structure (9) includes a two-force rod (901) connected at one end to a first one-way hinge (504) of the loading head (5), the other end of the two-force rod (901) is connected to a third one-way hinge (903) arranged on the side of the elastic reaction beam (902), and a triangular support frame (904) fixed to the ground is provided on both lateral sides of the other side of the elastic reaction beam (902).

2. The Y-shaped component compression test loading device according to claim 1, characterized in that: The base (2) comprises two first vertical beams (201) fixed in parallel on the reaction wall (1), a first horizontal beam (202) is fixedly arranged between the two first vertical beams (201), and a straight end mounting hole (203) is provided on the middle side wall of the first horizontal beam (202), the shape and size of which are adapted to the straight end of the Y-shaped component (3) to be measured.

3. The Y-shaped component compression test loading device according to claim 2, characterized in that: A plurality of first stiffening ribs (204) are evenly distributed around the linear end mounting hole (203).

4. The Y-shaped component compression test loading device according to claim 1, characterized in that: The reaction beam (703) comprises two parallel wing plates (70301), web plates (70302) are provided at both ends of the space enclosed by the two wing plates (70301), and a plurality of second rib plates (70303) parallel to the web plates (70302) are provided in the rectangular space enclosed by the two wing plates (70301) and the two web plates (70302); a plurality of second connecting plates (70304) are provided on the transverse rear end face of one of the wing plates (70301), and a connecting hole (70305) is provided at the four corners of the two wing plates (70301), each of the screw rods (704) is fixed through the connecting hole (70305), and the other end of the screw rod (704) is fixed on the reaction wall (1).

5. The Y-shaped component compression test loading device according to claim 1, characterized in that: The triangular support frame (904) includes a second crossbeam (90401), the two ends of the second crossbeam (90401) are respectively connected to the second vertical beam (90404) and one end of the oblique beam (90405) through a large connector (90402) and a small connector (90403), and the other ends of the second vertical beam (90404) and the oblique beam (90405) are connected to form a triangle, and a third crossbeam (90406) parallel to the second crossbeam (90401) is provided in the triangle.

6. The Y-shaped component compression test loading device according to claim 1, characterized in that: The bottom beam (701) and the "X"-shaped support beam (702) are fixed to the ground via anchor bolts (705).

7. The Y-shaped component compression test loading device according to claim 1, characterized in that: The telescopic end of the jack (602) is provided with a sleeve (603), and the sleeve (603) is vertically fixed on the load sensor (604).

8. The Y-shaped member compression test loading device according to claim 5, characterized in that: The second vertical beam (90404) and the oblique beam (90405) are both provided with third reinforcing ribs (90407) inside.

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