A device for loading oblique loads on glass structure connection nodes

Abstract

An embodiment of the present invention provides an oblique load loading device for glass structure connection nodes, comprising: a base; a limiting assembly, which is provided on the base and is used to cooperate with the base to form a fixing groove for fixing the test piece, wherein the test piece is a glass structure having a connection node for externally connecting other structural members, and an embedded part is provided at the connection node; a testing mechanism, which is connected to the embedded part and is used to apply a tensile force to the embedded part to perform a load test on the connection node, and one end of the testing mechanism is detachably connected to the base and can be rotated relative to the base to adjust the force application angle of the testing mechanism on the embedded part, so that the testing mechanism can perform load tests on the connection node at different angles. The oblique load loading device for glass structure connection nodes of the present invention can achieve oblique loading at any angle, so that the test piece can be load tested at any angle.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of component load testing, and in particular to a device for applying an oblique load to a glass structure connection node. Background Art

[0002] Structural testing is designed to prevent accidents and casualties caused by external forces on buildings and other facilities. It studies the structural performance of buildings and conducts extensive testing to verify design theories. Structural testing primarily involves loading and unloading specimens using a loading device, using the load or displacement of the structure or component as a control variable.

[0003] Glass structure connection nodes will bear loads at different angles during use. When conducting experimental research on the stress-bearing performance of the connection nodes, a loading device is required that can apply loads at different angles and ensure that the load angle does not change during the loading process. Existing conventional test schemes generally use a three-point loading method, that is, one-point pulling and two-point pressing (pressing down is mainly used to ensure the stability of the specimen position). However, this loading method will cause the node area to bear additional stress, affecting the stress distribution law of the node area, making the stress state of the node area inconsistent with the actual project, affecting the accuracy of the test results. Moreover, pressing down the specimen can easily cause it to break. When the load is large, it is also easy to cause the specimen to overturn due to uneven force. At the same time, this loading method cannot achieve multi-angle pulling of the connection node, and the test effect is poor. Summary of the Invention

[0004] The present invention provides an oblique load loading device for glass structure connection nodes, which does not require pressing down on a test piece, ensures a regular stress distribution of the test piece, and can realize oblique loading at any angle, thereby enabling load testing of the test piece at any angle.

[0005] In order to solve the above technical problems, an embodiment of the present invention provides a device for applying an oblique load to a glass structure connection node, comprising:

[0006] base;

[0007] A limit assembly is provided on the base and is used to cooperate with the base to form a fixing groove for fixing the test piece, wherein the test piece is a glass structural member having a connection node for externally connecting to other structural members, and the connection node is provided with an embedded part;

[0008] A testing mechanism is connected to the embedded part and is used to apply tension to the embedded part to perform a load test on the connection node. One end of the testing mechanism is detachably connected to the base and can be rotated relative to the base to adjust the force application angle of the testing mechanism on the embedded part, so that the testing mechanism can perform load tests on the connection node at different angles.

[0009] Preferably, the testing mechanism comprises:

[0010] A loading part connected to the embedded part;

[0011] a slide rail disposed on the loading member, wherein the slide rail is at least arc-shaped;

[0012] a pull rod, an end of which is located in the slide rail and is movable along the slide rail; and

[0013] A pulling assembly having two opposite ends, one end of which is rotatably connected to the base, and the other end of which is connected to the pull rod, for applying a pulling force to the pull rod so that the pulling force is transmitted in sequence to the connection nodes of the slide rail, loader, embedded part and the part to be tested through the pull rod.

[0014] Preferably, the pulling assembly comprises:

[0015] a reaction member, one end of which is rotatably connected to the base;

[0016] The jack is located at the other end of the reaction piece and is connected to the pull rod. When the jack pushes the pull rod in the direction of pulling the loading piece, the jack and the reaction piece press against each other and apply reaction force to each other to balance the overall force of the test mechanism and ensure that the relative position of the test mechanism and the base is stable.

[0017] Preferably, the reaction members include two, the two reaction members are arranged opposite to each other, one end of which is rotatably connected to the base, and the other end is connected through a reaction connection member, the test piece, the loading piece, and the slide rail are located between the two reaction members, one end of the pull rod passes through the reaction connection member and is connected to the slide rail, and the other end is located outside the reaction connection member and is connected to the jack, and the jack and the reaction connection member are offset against each other.

[0018] Preferably, the pull rod is located at the center of the reaction force connector, the jack is a hydraulic jack, which is sleeved outside the pull rod, and the jack top plate of the hydraulic jack is connected to the pull rod.

[0019] Preferably, the base is provided with a plurality of connection ends for connecting to the testing mechanism, and the testing mechanism assists in adjusting the angular direction by connecting to the connection ends at different positions.

[0020] Preferably, the base is further detachably provided with a bracket assembly which can be raised or lowered relative to the base for supporting and limiting the reaction member.

[0021] Preferably, the bracket assembly includes a screw threaded on the base and a bracket provided at one end of the screw facing the reaction member for supporting the reaction member.

[0022] Preferably, the limiting assembly includes two first limiting members arranged relatively spaced apart from each other, and a second limiting member for cooperating to clamp the two first limiting members at the same time, the second limiting member is detachably connected to the base, and the first limiting member, the second limiting member and the base cooperate to form the fixing groove for clamping the test piece.

[0023] Preferably, the test piece and the first limiting member are fixedly connected by an adhesive.

[0024] Based on the disclosure of the above embodiments, it can be seen that the beneficial effects of the embodiments of the present invention include eliminating the need to press down on the test piece, ensuring a regular stress distribution across the entire test piece during load testing, and ensuring test accuracy. Furthermore, the test piece can be subjected to oblique loading at any angle, enabling load testing of the test piece at different angles and directions to fully reflect the actual stress state of the test piece's connection nodes, further improving the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Schematic diagram of the structure of the oblique load loading device for the glass structure connection node in an embodiment of the present invention.

[0026] Figure 2 Schematic diagram of a portion of the structure of the oblique load loading device for the glass structure connection node in an embodiment of the present invention.

[0027] Reference numerals:

[0028] 1. Base; 2. Connecting end; 3. Reaction piece; 4. Loading piece; 5. Slide rail; 6. Hinge shaft; 7. Reaction connector; 8. Limit hole; 9. Jack; 10. Jack top plate; 11. Pull rod; 12. Second limit piece; 13. First limit piece; 14. Fixing bolt; 15. Bracket; 16. Screw; 17. Positioning nut; 18. Part to be tested; 19-Embedded part DETAILED DESCRIPTION

[0029] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings, but are not intended to limit the present invention.

[0030] It should be understood that various modifications may be made to the embodiments disclosed herein. Therefore, the following description should not be considered as limiting, but merely as an example of an embodiment. Other modifications within the scope and spirit of the present disclosure will occur to those skilled in the art.

[0031] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the general description of the present disclosure given above and the detailed description of the embodiments given below, serve to explain the principles of the present disclosure.

[0032] These and other characteristics of the invention will become apparent from the following description of a preferred form of embodiment given as a non-limiting example with reference to the accompanying drawings.

[0033] It should also be understood that although the invention has been described with reference to certain specific examples, those skilled in the art will be able to realize many other equivalent forms of the invention that have the characteristics recited in the claims and are therefore within the scope of protection defined thereby.

[0034] The above and other aspects, features and advantages of the present disclosure will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.

[0035] Specific embodiments of the present disclosure will be described hereinafter with reference to the accompanying drawings; however, it should be understood that the disclosed embodiments are merely examples of the present disclosure, which may be implemented in a variety of ways. Well-known and / or repetitive functions and structures are not described in detail to avoid obscuring the present disclosure with unnecessary or redundant detail. Therefore, the specific structural and functional details disclosed herein are not intended to be limiting, but rather serve merely as a basis and representative basis for the claims to teach those skilled in the art to variously employ the present disclosure with substantially any suitable detailed structure.

[0036] This description may use the phrases "in one embodiment," "in another embodiment," "in a further embodiment," or "in other embodiments," each of which may refer to one or more of the same or different embodiments according to the present disclosure.

[0037] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0038] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a device for applying an oblique load to a glass structure connection node, comprising:

[0039] Base 1;

[0040] A limit assembly is provided on the base 1 and is used to cooperate with the base 1 to form a fixing groove for fixing the test piece 18. The test piece 18 is a glass structural member having a connection node for externally connecting to other structural members. The connection node is provided with an embedded part 19;

[0041] The testing mechanism is connected to the embedded part 19 and is used to apply a tensile force (such as Figure 2As shown in FIG5(F), a load test is performed on the connection node. One end of the test mechanism is detachably connected to the base 1 and can be rotated relative to the base 1 to adjust the force angle of the test mechanism on the embedded part 19, so that the test mechanism can perform load tests on the connection node at different angles.

[0042] That is, the test piece 18 can be fixed by a fixing groove formed by the cooperation of the limit assembly and the base 1. The testing mechanism is respectively connected to the embedded parts 19 of the test piece 18 and the base 1, and can rotate relative to the base 1, so that the load loading direction can be adjusted arbitrarily when testing the test piece 18, and oblique loading at any angle can be achieved.

[0043] Based on the disclosure of the above embodiments, it can be seen that the beneficial effects of the embodiments of the present invention include eliminating the need to press down on the test piece 18, ensuring that the stress distribution of the entire test piece 18 during load testing is regular, without affecting the stress state at the connection nodes of the test piece 18, and thus ensuring test accuracy. Furthermore, it is possible to apply oblique loading to the test piece 18 at any angle, enabling load testing of the test piece 18 at different angles and directions, fully reflecting the actual stress state of the connection nodes of the test piece 18, and further improving the accuracy of the test results.

[0044] Specifically, the base 1 in this embodiment includes a first portion connected to the test mechanism and a second portion connected to the limit assembly. The first portion and the second portion are connected to form an L-shape, wherein the first portion is taller than the second portion and corresponds to the vertical section of the L, and the second portion corresponds to the horizontal section of the L. Of course, there is no unique specific structure. The base 1 structure used in this embodiment is only one of many base 1 structures and is not intended to be limiting.

[0045] Further, continue to combine Figure 1 The limiting assembly includes two first limiting members 13 spaced apart from each other, and a second limiting member 12 for simultaneously clamping the two first limiting members 13. Specifically, the two second limiting members 12 in each pair of second limiting members 12 are located outside the two first limiting members 13, respectively, to clamp the first limiting members 13 and prevent the two first limiting members 13 from tilting in opposite directions. The second limiting members 12 are detachably connected to the base 1. The first limiting members 13, the second limiting members 12, and the base 1 cooperate to form a fixing groove for clamping the test piece 18.

[0046] Specifically, in this embodiment, the first stopper 13 is a steel plate, and the second stopper 12 is an angle steel. The second stopper 12 is fixed to the first portion of the base 1 via fixing bolts 14. The test piece 18 is located within the fixing groove and is clamped by the two first stoppers 13. To ensure that the test piece 18 maintains a more stable test position during testing and does not rotate under oblique loads, such as around the top corner of the test piece 18, and to ensure that the test piece 18 does not crack locally due to stress concentration, in this embodiment, the test piece 18 is preferably fixedly connected to the first stopper 13 by an adhesive, such as epoxy resin structural adhesive, to increase the limiting force and avoid undesirable phenomena.

[0047] Further, continue to combine Figure 1 , testing organizations include:

[0048] A loading part 4 connected to the embedded part 19;

[0049] A slide rail 5 is provided on the loading member 4, and the slide rail 5 is at least arc-shaped;

[0050] a pull rod 11 , an end of which is located in the slide rail 5 and is movable along the slide rail 5 ; and

[0051] The pulling component has two opposite ends. One end of the pulling component is rotatably connected to the base 1, and the other end is connected to the pull rod 11. It is used to apply tension to the pull rod 11, so that the tension is transmitted to the connection nodes of the slide rail 5, the loader 4, the embedded part 19 and the test piece 18 in sequence through the pull rod 11.

[0052] In this embodiment, the loading member 4 is connected to the embedded member 19 via bolts. The slide rail 5 is formed by a portion of the loading member 4 being recessed inward. Alternatively, a separate slide rail 5 can be provided and securely fixed to the loading member 4. A hinge 6 is slidably disposed within the slide rail 5, and one end of the pull rod 11 is slidably connected to the slide rail 5 via the hinge 6.

[0053] Furthermore, the pulling assembly includes:

[0054] a reaction member 3, one end of which is rotatably connected to the base 1;

[0055] The jack 9 is located at the other end of the reaction piece 3 and is connected to the pull rod 11. When the jack 9 pushes the pull rod 11 in the direction of pulling the loading piece 4, the jack 9 and the reaction piece 3 press against each other and apply reaction forces to each other, that is, apply forces of equal magnitude and opposite directions to balance the overall force of the test mechanism, ensure that the test mechanism will not be displaced by the component force in a certain direction, make the relative position of the test mechanism and the base 1 stable, and the angular direction of the load loading stable.

[0056] Specifically, the reaction member 3 in this embodiment is a reaction plate. The reaction members 3 include two reaction members 3, which are arranged opposite to each other. One end of each reaction member 3 is rotatably connected to the base 1 in the same direction, and the other end is connected through a reaction connection member 7, which can be a reaction connection plate. The test piece 18, the loading member 4, and the slide rail 5 are located between the two reaction members 3. One end of the pull rod 11 passes through a limit hole 8 on the reaction connection member 7 to prevent the pull rod 11 from shaking under force and affecting the load angle, thereby achieving connection with the slide rail 5. The other end is located outside the reaction connection member 7 and is connected to a jack 9. The jack 9 is offset from the reaction connection member 7, so that a reaction force is applied to each other based on the reaction connection member 7 and the reaction member 3.

[0057] In this embodiment, the pull rod 11 is located at the center of the reaction force connector. The jack 9 is a hydraulic jack 9 with a high loading capacity. It is sleeve-shaped and is mounted outside the pull rod 11. The hydraulic jack 9 is connected to the pull rod 11 through its jack top plate 10, and based on this jack top plate 10, it applies a thrust to the pull rod 11 in a direction away from the reaction force member 3. Through this arrangement, the loading member 4, which has much less rigidity than the test mechanism, can still ensure the alignment of the above-mentioned structural components even when it undergoes rigid displacement after being pulled, thus avoiding the occurrence of instability and damage to the outer surface of the test member 18.

[0058] Continue to combine Figure 1 As shown, the base 1 in this embodiment is provided with a plurality of connection ends 2 for connecting to the reaction members 3 of the test mechanism, such as connection holes, including connection screw holes, etc. The test mechanism assists in adjusting the angle direction by connecting to the connection ends 2 at different positions, so as to realize the load application to the test piece 18 at any angle direction.

[0059] Furthermore, the base 1 in this embodiment is detachably provided on its second part with a bracket 15 assembly that can be raised or lowered relative to the base 1 to support and limit the reaction member 3. The bracket 15 assembly includes a screw 16 screwed on the base 1 and a bracket 15 provided at one end of the screw 16 facing the reaction member 3 to support the reaction member 3. The screw 16 is positioned on the base 1 by a positioning nut 17. The screw 16 is perpendicular to the base 1 and can cooperate with the above-mentioned connecting end 2 and reaction member 3 to form a right-angled triangle. Based on the triangle and the pre-realized load angle, the connection position between the reaction member 3 and the base 1 and the height of the screw 16 are adjusted, or reverse calculation is performed to determine the actual load angle, and the current load direction is verified to meet the requirements by comparing it with the pre-realized load angle.

[0060] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the scope of the present invention. The scope of protection of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the spirit and scope of protection of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the scope of protection of the present invention.

Claims

1. A device for applying oblique loads to a glass structure connection node, characterized in that: include: base; A limit assembly is provided on the base and is used to cooperate with the base to form a fixing groove for fixing the test piece, wherein the test piece is a glass structural member having a connection node for externally connecting to other structural members, and the connection node is provided with an embedded part; a testing mechanism connected to the embedded part and used to apply a tensile force to the embedded part to perform a load test on the connection node; one end of the testing mechanism is detachably connected to the base and can rotate relative to the base to adjust the angle at which the testing mechanism applies force to the embedded part, so that the testing mechanism can perform load tests on the connection node at different angles; The base is provided with a plurality of connection ends for connecting to the testing mechanism, and the testing mechanism assists in adjusting the angle direction by connecting to the connection ends at different positions; The testing organization includes: A loading part connected to the embedded part; a slide rail disposed on the loading member, wherein the slide rail is at least arc-shaped; a pull rod, an end of which is located in the slide rail and is movable along the slide rail; and A pulling assembly having two opposite ends, one end of which is rotatably connected to the base, and the other end of which is connected to the pull rod, for applying a pulling force to the pull rod so that the pulling force is transmitted in sequence to the connection nodes of the slide rail, loader, embedded part and the part to be tested through the pull rod.

2. The device for applying oblique load to a glass structure connection node according to claim 1, characterized in that: The pulling assembly includes: a reaction member, one end of which is rotatably connected to the base; The jack is located at the other end of the reaction piece and is connected to the pull rod. When the jack pushes the pull rod in the direction of pulling the loading piece, the jack and the reaction piece press against each other and apply reaction force to each other to balance the overall force of the test mechanism and ensure that the relative position of the test mechanism and the base is stable.

3. The device for applying oblique load to a glass structure connection node according to claim 2, characterized in that: The reaction members include two, which are arranged opposite to each other, and one end in the same direction is rotatably connected to the base, and the other end is connected through a reaction connection member. The test piece, the loading piece, and the slide rail are located between the two reaction members. One end of the pull rod passes through the reaction connection member and is connected to the slide rail, and the other end is located outside the reaction connection member and is connected to the jack, and the jack and the reaction connection member are offset.

4. The device for applying oblique load to a glass structure connection node according to claim 3, characterized in that: The pull rod is located at the center of the reaction force connecting piece. The jack is a hydraulic jack which is sleeved outside the pull rod. The jack top plate of the hydraulic jack is connected to the pull rod.

5. The device for applying oblique load to a glass structure connection node according to claim 2, characterized in that: The base is further detachably provided with a bracket assembly which can be raised or lowered relative to the base for supporting and limiting the reaction force member.

6. The device for applying oblique load to a glass structure connection node according to claim 5, characterized in that: The bracket assembly includes a screw rod screwed on the base and a bracket provided at one end of the screw rod facing the reaction member and used for supporting the reaction member.

7. The device for applying oblique load to a glass structure connection node according to claim 1, characterized in that: The limiting assembly includes two first limiting members arranged relatively spaced apart from each other, and a second limiting member for cooperating and clamping the two first limiting members at the same time. The second limiting member is detachably connected to the base. The first limiting member, the second limiting member and the base cooperate to form the fixing groove for clamping the test piece.

8. The device for applying oblique load to a glass structure connection node according to claim 7, characterized in that: The to-be-tested piece is fixedly connected to the first limiting piece by an adhesive.

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