A lateral support device for compression-shear bending type test specimens

Abstract

This application belongs to the technical field of lateral support for compression-shear and bending type tests of large frame wall panel structures. Specifically, it relates to a lateral support device for compression-shear and bending type test specimens, comprising: two primary base plates connected to a fixed structure and longitudinally distributed on the fixed structure, each with a primary support; two pairs of primary rollers connected to the two primary supports and transversely arranged on the corresponding primary supports, and vertically opposite to each other; a secondary base plate extending at both ends between the two pairs of primary rollers, with two secondary supports on it; the two secondary supports are transversely distributed on the secondary base plate; the two pairs of secondary rollers connected to the two secondary supports and longitudinally arranged on the corresponding primary supports, and vertically opposite to each other; a tertiary base plate extending at both ends between the two pairs of secondary rollers; a pad; and a support rod arranged vertically and connected between the tertiary base plate and the pad, pressing the pad against the side wall of the loading section of the test specimen.

Description

Technical Field

[0001] This application belongs to the field of lateral support technology for compression-shear and bending type tests of large frame wall panel structures, specifically relating to a lateral support device for compression-shear and bending type test specimens. Background Technology

[0002] When conducting compression-shear and bending tests on large frame wall panel structures, loads are applied to the loading section of the test specimen. To prevent out-of-plane deformation of the test specimen from causing structural instability, a lateral support device is designed.

[0003] Current lateral support devices mostly use top wheels or top rods to provide lateral support on the loading section of the test specimen. During the test loading process, the loading section of the test specimen is prone to large longitudinal and lateral bidirectional displacement deformation. However, the top wheels and top rods do not have bidirectional follow-up limiting functions, which will introduce additional frictional forces, affect the actual deformation of the test specimen, and cause large deviations in the test results.

[0004] This application is made in view of the aforementioned technical deficiencies.

[0005] It should be noted that the above background information is only used to assist in understanding the inventive concept and technical solution of this application, and it does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above information was disclosed on the filing date of this application, the above background information should not be used to evaluate the novelty and inventiveness of this application. Summary of the Invention

[0006] The purpose of this application is to provide a lateral support device for compression-shear bending type test specimens to overcome or mitigate at least one of the known technical defects.

[0007] The technical solution of this application is:

[0008] A lateral support device for a compression-shear bending test specimen includes:

[0009] Two primary base plates are connected to a fixed structure and are distributed longitudinally on the fixed structure, with a primary support on them;

[0010] Two pairs of primary rollers are connected to two primary supports, and are arranged laterally on the corresponding primary supports and distributed relative to each other in the vertical direction;

[0011] The secondary base plate extends at both ends between two pairs of primary rollers and has two secondary supports on it; the two secondary supports are distributed laterally along the secondary base plate.

[0012] Two pairs of secondary rollers are connected to two secondary supports, which are set longitudinally on the corresponding primary supports and are distributed relative to each other in the vertical direction;

[0013] The third-level base plate extends into the space between two pairs of second-level rollers at both ends;

[0014] pad;

[0015] The support rod is set vertically and connects between the three-stage base plate and the pad plate, pressing the pad plate against the side wall of the loading section of the test specimen.

[0016] According to at least one embodiment of this application, in the above-mentioned lateral support device for compression-shear bending type test specimens, two primary base plates are connected to a fixed structure by bolts, and the corresponding bolt holes on them are racetrack-shaped and extend longitudinally.

[0017] According to at least one embodiment of this application, in the above-described lateral support device for compression-shear bending type test specimens, the fixing structure is a column or a load-bearing wall.

[0018] According to at least one embodiment of this application, in the above-mentioned lateral support device for compression-shear bending type test specimens, ball bearings are provided between two pairs of primary rollers and primary brackets, and are installed with end caps.

[0019] Ball bearings are installed between the two pairs of secondary rollers and the secondary support, and are mounted with end caps.

[0020] According to at least one embodiment of this application, in the above-mentioned lateral support device for compression-shear bending type test specimens, the secondary base plate has stop protrusions on both longitudinal edges;

[0021] Two stop protrusions are located between the two primary supports;

[0022] Two secondary supports are located on two stop protrusions.

[0023] According to at least one embodiment of this application, in the above-described lateral support device for compression-shear bending type test specimens, the two ends of the support rod are connected to the third-level base plate and pad plate by reverse threads.

[0024] According to at least one embodiment of this application, in the above-described lateral support device for compression-shear-bending type test specimens, the pad is bolted to the side wall of the loading section of the test specimen.

[0025] According to at least one embodiment of this application, the above-mentioned lateral support device for compression-shear bending type test specimens includes multiple sets of primary base plate and its corresponding primary roller, secondary base plate, two pairs of secondary rollers, tertiary base plate, pad, and support rod. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the operation of the lateral support device for shear bending type test specimens provided in the embodiments of this application;

[0027] Figure 2This is a schematic diagram of the structure of the lateral support device for shear bending type test specimens provided in the embodiments of this application;

[0028] Figure 3 This is a schematic diagram of the structure of the primary base plate and its primary roller assembly provided in the embodiments of this application;

[0029] Figure 4 This is a schematic diagram of the structure of the secondary base plate and its secondary roller assembly provided in the embodiments of this application;

[0030] in:

[0031] 1- Primary base plate; 2- Fixed structure; 3- Primary roller; 4- Secondary base plate; 5- Secondary roller; 6- Tertiary base plate; 7- Pad plate; 8- Support rod; 9- Test piece.

[0032] To better illustrate this embodiment, some parts in the accompanying drawings may be omitted, enlarged, or reduced, and do not represent the actual size of the product. Furthermore, the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. Detailed Implementation

[0033] To make the technical solution and advantages of this application clearer, the technical solution of this application will be described in a clearer and more complete manner below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some embodiments of this application, and are only used to explain this application, not to limit this application. It should be noted that, for ease of description, only the parts related to this application are shown in the accompanying drawings. Other related parts can be referred to the general design. In the absence of conflict, the embodiments and technical features in the embodiments of this application can be combined with each other to obtain new embodiments.

[0034] Furthermore, unless otherwise defined, the technical or scientific terms used in this application description shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "upper," "lower," "left," "right," "center," "vertical," "horizontal," "inner," and "outer," etc., used in this application description to indicate relative direction or positional relationship are used only to indicate relative orientation or positional relationship, and do not imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. When the absolute position of the described object changes, its relative positional relationship may also change accordingly, and therefore should not be construed as a limitation on this application. The terms "first," "second," "third," and similar terms used in this application description are used only for descriptive purposes to distinguish different components, and should not be construed as indicating or implying relative importance. The terms "a," "one," or "the," etc., used in this application description should not be construed as an absolute limitation on quantity, but should be construed as indicating the existence of at least one. The terms "including," "comprising," etc., used in this application description mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects.

[0035] Furthermore, it should be noted that, unless otherwise explicitly specified and limited, terms such as “installation,” “connection,” and “linkage” used in the description of this application should be interpreted broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can be a connection within two components. Those skilled in the art can understand its specific meaning in this application according to the specific circumstances.

[0036] The following is in conjunction with the appendix Figures 1 to 4 This application will be described in further detail.

[0037] A lateral support device for a compression-shear bending test specimen includes:

[0038] Two primary base plates 1 are connected to a fixed structure 2 and are distributed longitudinally on the fixed structure 2, with a primary support on them;

[0039] Two pairs of primary rollers 3 are connected to two primary supports, and are arranged laterally on the corresponding primary supports and distributed relative to each other in the vertical direction;

[0040] The secondary base plate 4 extends into the space between two pairs of primary rollers 3 at both ends, and has two secondary supports on it; the two secondary supports are distributed laterally on the secondary base plate 4.

[0041] Two pairs of secondary rollers 5 are connected to two secondary supports, and are set longitudinally on the corresponding primary supports, and are distributed relatively in the vertical direction;

[0042] The third-level base plate 6 extends into the space between two pairs of second-level rollers 5 at both ends;

[0043] Pad 7;

[0044] The support rod 8 is set vertically and connects between the third-level base plate 6 and the pad 7, so that the pad 7 is pressed against the side wall of the loading section of the test piece 9.

[0045] The lateral support device for the compression-shear and bending test specimen disclosed in the above embodiments provides lateral support for the loading section of the test specimen 9 in compression-shear and bending tests of large frame wall panel structures. This support is achieved by the longitudinal sliding of the secondary base plate 4 relative to the primary base plate 1 and the transverse sliding of the tertiary base plate 6 relative to the secondary base plate 4. This provides follow-up support for the longitudinal and transverse bidirectional displacement deformation of the loading section of the test specimen 9. The secondary base plate 4 and the primary base plate 1, and the tertiary base plate 6 and the secondary base plate 4, are positioned by sliding between the primary roller 3 and the secondary roller 5. The sliding friction is small, which can avoid significantly affecting the actual deformation of the test specimen 9 and ensure the accuracy of the test results.

[0046] In some optional embodiments, in the above-mentioned lateral support device for the compression-shear bending type test specimen, the two primary base plates 1 are connected to the fixed structure 2 by bolts, and the corresponding bolt holes on them are racetrack-shaped and extend longitudinally, which can leave a margin for the relative position adjustment between the two primary base plates 1. The distance between the two primary base plates 1 can be set with reference to the longitudinal deformation of the test specimen 9 during the test.

[0047] In some optional embodiments, in the above-described lateral support device for compression-shear bending type test specimens, the fixing structure 2 is a column or a load-bearing wall, or other structures capable of fixing and bearing loads.

[0048] In some optional embodiments, in the above-mentioned lateral support device for the compression-shear bending type test specimen, ball bearings are provided between the two pairs of primary rollers 3 and the primary support, and are installed with end caps to reduce the friction of the primary rollers 3 rolling, avoid significantly affecting the actual deformation of the test specimen 9, and ensure the accuracy of the test results.

[0049] Ball bearings are installed between the two pairs of secondary rollers 5 and the secondary support, and are mounted with end caps to reduce the friction of the rolling of the secondary rollers 5, avoid significantly affecting the actual deformation of the test piece 9, and ensure the accuracy of the test results.

[0050] In some alternative embodiments, the lateral support device for the compression-shear bending type test specimen described above has stop protrusions on the two longitudinal edges of the secondary base plate 4;

[0051] Two stop protrusions are located between the two primary supports;

[0052] Two secondary supports are located on two stop protrusions.

[0053] In some optional embodiments, in the above-mentioned lateral support device for the compression-shear bending type test specimen, the two ends of the support rod 8 are connected to the three-stage base plate 6 and the pad 7 by reverse threads. The distance between the three-stage base plate 6 and the pad 7 can be easily adjusted by screwing, thereby easily adjusting the force of the pad 7 against the side wall of the loading section of the test specimen 9, ensuring the lateral support effect on the loading section of the test specimen 9.

[0054] In some optional embodiments, in the above-mentioned lateral support device for compression-shear bending type test specimens, the pad 7 is bolted to the side wall of the loading section of the test specimen 9 to ensure that it can move in real time according to the loading section of the test specimen 9 and avoid relative sliding.

[0055] In some optional embodiments, the above-mentioned lateral support device for compression-shear bending test specimens has multiple sets of primary base plate 1 and its corresponding primary roller 3, secondary base plate 4, two pairs of secondary rollers 5, tertiary base plate 6, pad 7, and support rod 8. The specific number and distribution position can be determined according to the specific actual application.

[0056] The various embodiments in the specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0057] The technical solution of this application has been described in conjunction with the preferred embodiments shown in the accompanying drawings. Those skilled in the art should understand that the scope of protection of this application is obviously not limited to these specific embodiments. Without departing from the principles of this application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of this application.

Claims

1. A lateral support device for a compression-shear bending test specimen, characterized in that, include: Two primary base plates (1) are connected to a fixed structure (2) and are distributed longitudinally on the fixed structure (2), with a primary support on them; Two pairs of primary rollers (3) are connected to two primary supports, and are set horizontally on the corresponding primary supports and distributed relatively in the vertical direction; The secondary base plate (4) extends into the space between two pairs of primary rollers (3) at both ends, and has two secondary supports on it; the two secondary supports are distributed laterally on the secondary base plate (4); Two pairs of secondary rollers (5) are connected to two secondary supports, which are set longitudinally on the corresponding secondary supports and are distributed relative to each other in the vertical direction; The third-level base plate (6) extends into the space between two pairs of second-level rollers (5) at both ends; pad (7); The support rod (8) is set vertically and connected between the third-level base plate (6) and the pad plate (7), and the pad plate (7) is placed against the side wall of the loading section of the test piece (9).

2. The lateral support device for compression-shear bending type test specimens according to claim 1, characterized in that, Two primary base plates (1) are bolted to a fixed structure (2), and the corresponding bolt holes on them are racetrack-shaped and extend longitudinally.

3. The lateral support device for compression-shear bending type test specimens according to claim 1, characterized in that, The fixed structure (2) is a column or a load-bearing wall.

4. The lateral support device for compression-shear bending type test specimens according to claim 1, characterized in that, Ball bearings are provided between the two pairs of primary rollers (3) and the primary support, and are installed with end caps; Ball bearings are provided between the two pairs of secondary rollers (5) and the secondary support, and are installed with end caps.

5. The lateral support device for compression-shear bending type test specimens according to claim 1, characterized in that, The secondary base plate (4) has stop protrusions on its two longitudinal edges; Two stop protrusions are located between the two primary supports; Two secondary supports are located on two stop protrusions.

6. The lateral support device for compression-shear bending type test specimens according to claim 1, characterized in that, The two ends of the support rod (8) are connected to the third-level base plate (6) and the pad plate (7) by reverse threads.

7. The lateral support device for compression-shear bending type test specimens according to claim 1, characterized in that, The pad (7) is bolted to the side wall of the loading section of the test piece (9).

8. The lateral support device for compression-shear bending type test specimens according to claim 1, characterized in that, There are multiple sets of primary base plate (1) and its corresponding primary roller (3), secondary base plate (4), two pairs of secondary rollers (5), tertiary base plate (6), pad plate (7), and support rod (8).

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