A test system and test method based on right-angle viscoelastic damper

Abstract

The present invention discloses a test system and test method based on a right-angle viscoelastic damper, comprising a right-angle steel plate, a triangular steel plate, a workbench, table bolts, vertical bolts, a right-angle viscoelastic damper, a connecting steel plate, and a clamping rod. The right-angle steel plate is fixed to the workbench via the table bolts, and the two right-angled sides of the two triangular steel plates are connected to the right-angle steel plate. The right-angle viscoelastic damper is combined with the connecting steel plate and fixed to the right-angle steel plate via vertical bolts. The right-angle viscoelastic damper is connected to the upper fixed end of an MTS machine via a clamping rod above it. The present invention effectively solves the problem of loading the right-angle viscoelastic damper, and has a simple and firm structure. The right-angle steel plate serves as a fixed support, and multiple sets of damper tests can be completed without replacement. The system is also applicable to the testing of similar node-type dampers with a 90-degree angle between the loading end and the fixed end.

Description

Technical Field

[0001] The present invention belongs to the technical field of damper testing, and in particular relates to a testing system based on a right-angle viscoelastic damper and a testing method thereof. Background Art

[0002] With the continuous development of the field of building energy dissipation and shock absorption, more and more types of dampers have emerged. However, for many dampers, especially node-type dampers, their force-bearing modes may vary. Currently, the loading methods for damper performance research are relatively limited. Most loading devices can only load on the same vertical or horizontal line. This cannot meet the test loading requirements of dampers with different structures and force forms, which greatly restricts the structural development and application of dampers. Therefore, it is very necessary to research and develop test schemes for dampers where the fixed end and the applied load direction are not on the same line. Summary of the Invention

[0003] In response to the technical problems mentioned in the background art, the present invention provides a test system and a test method based on a right-angle viscoelastic damper.

[0004] In order to achieve the above objectives, the following technical solutions are provided:

[0005] A test system based on a right-angle viscoelastic damper and a test method thereof are characterized by comprising a right-angle steel plate (1), a triangular steel plate (2), a table bolt (3), a vertical bolt (4), a workbench (5), a right-angle viscoelastic damper (6), a connecting steel plate (7), and a clamping rod (8); the triangular steel plate (2) is divided into two pieces, and its two right-angled sides are connected to the two sides of the right-angle steel plate (1); the horizontal steel plate of the right-angle steel plate (1) is arranged on the workbench (5), and the vertical steel plate is combined with the connecting steel plate (7); the right-angle viscoelastic damper (6) is connected to the connecting steel plate (7) and is fixed to the vertical steel plate of the right-angle steel plate (1) along with the connecting steel plate (7).

[0006] Furthermore, the triangular steel plate (2) and the right-angle steel plate (1), and the right-angle viscoelastic damper (6) and the connecting steel plate (7) are connected and fixed by welding.

[0007] Furthermore, a plurality of bolt holes are provided on the right-angle steel plate (1) and the connecting steel plate (7); the right-angle steel plate (1) is fixedly connected to the workbench (5) via table bolts (3); and the right-angle steel plate (1) and the connecting steel plate (7) are fixedly connected via vertical bolts (4).

[0008] Furthermore, the workbench (5) is provided with two inverted T-shaped slots, and the heads of the table bolts (3) are arranged in the slots, and the sizes thereof are adapted to the sizes of the T-shaped slots, so that the slots can limit the displacement of the bolt heads.

[0009] Furthermore, a clamping rod (8) is provided on the upper portion of the right-angle viscoelastic damper (6), which is connected to the upper fixed end of the MTS machine via the clamping rod (8).

[0010] Furthermore, a test method based on a right-angle viscoelastic damper includes the following steps:

[0011] After setting the table bolts in the corresponding positions of the inverted T-shaped slots, place the right-angle steel plate with the triangular steel plate on the workbench where the table bolts are placed, and tighten the nuts to secure it. Connect the connecting steel plate of the welded right-angle viscoelastic damper to the vertical steel plate of the right-angle steel plate with vertical bolts. Secure the damper clamp rod to the fixed end on the MTS machine.

[0012] On the basis of the installed test device, according to the actual working state of the right-angle viscoelastic damper at the beam-column node, the MTS machine is used to apply a predetermined frequency and displacement to the shear steel plate of the right-angle viscoelastic damper, causing the right-angle viscoelastic damper to undergo shear deformation; when studying the correlation issues of the damper, multiple dampers are required, and the vertical bolts can be disassembled to facilitate the replacement of the connecting steel plates and dampers.

[0013] Beneficial effects:

[0014] The present invention provides a test system and test method based on a right-angle viscoelastic damper, which overcomes the limitation that the loading device can only act on the same straight line as the fixed end and the loading direction, making it possible to conduct experimental research on the mechanical properties of right-angle viscoelastic dampers, such as dampers whose fixed end and loading direction are not in the same direction.

[0015] The right-angle steel plate fixing device of the present invention has a simple and clear structure and is easy to manufacture. The damper can be replaced by disassembling the vertical bolts without replacing the right-angle steel plate, which has certain economic benefits.

[0016] The right-angle steel plate fixing device of the present invention can withstand heavy loads and has a strong and reliable structure. At the same time, for right-angle viscoelastic dampers of different lengths, the right-angle steel plate can be moved on the workbench to adapt to the length of different test components, which is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of a test system and test method based on a right-angle viscoelastic damper according to an embodiment of the present invention;

[0018] Figure 2 This is a left view of a test system and test method based on a right-angle viscoelastic damper according to an embodiment of the present invention;

[0019] Figure 3 A top view of a test system and test method based on a right-angle viscoelastic damper according to an embodiment of the present invention;

[0020] The figure shows: 1-right-angle steel plate; 2-triangular steel plate; 3-table bolt; 4-vertical bolt; 5-workbench; 6-right-angle viscoelastic damper; 7-connecting steel plate; 8-clamp rod. DETAILED DESCRIPTION

[0021] The present invention will be described in further detail below with reference to the accompanying drawings.

[0022] like Figure 1 、 Figure 2 and Figure 3 As shown, the present invention provides a test system based on a right-angle viscoelastic damper and a test method thereof, comprising a right-angle steel plate (1), a triangular steel plate (2), a table bolt (3), a vertical bolt (4), a workbench (5), a right-angle viscoelastic damper (6), a connecting steel plate (7), and a clamping rod (8); the triangular steel plate (2) is divided into two pieces, and its two right-angle sides are connected to the two sides of the right-angle steel plate (1); the horizontal steel plate of the right-angle steel plate (1) is arranged on the workbench (5), and the vertical steel plate is combined with the connecting steel plate (7); the right-angle viscoelastic damper (6) is connected to the connecting steel plate (7) and is fixed to the vertical steel plate of the right-angle steel plate (1) along with the connecting steel plate (7).

[0023] The triangular steel plate (2) and the right-angle steel plate (1), and the right-angle viscoelastic damper (6) and the connecting steel plate (7) are connected and fixed by welding.

[0024] A plurality of bolt holes are provided on the right-angle steel plate (1) and the connecting steel plate (7); the right-angle steel plate (1) is fixedly connected to the workbench (5) via table bolts (3); and the right-angle steel plate (1) and the connecting steel plate (7) are fixedly connected via vertical bolts (4).

[0025] The workbench (5) is provided with two inverted T-shaped slots, and the heads of the table bolts (3) are arranged in the slots, and the sizes of the slots are adapted to the sizes of the T-shaped slots so that the slots can limit the displacement of the bolt heads.

[0026] A clamping rod (8) is provided on the upper portion of the shearing steel plate of the right-angle viscoelastic damper (6), and is connected to the upper fixed end of the MTS machine via the clamping rod (8).

[0027] A test method based on a right-angle viscoelastic damper of this embodiment includes the following steps:

[0028] First, set the table bolts in the corresponding positions of the inverted T-shaped slots, then place the right-angle steel plate with the triangular steel plate on the workbench where the table bolts have been placed, and tighten the nuts to fix it; connect the connecting steel plate of the welded right-angle viscoelastic damper to the vertical steel plate of the right-angle steel plate through vertical bolts; fix the clamping rod of the damper to the upper fixed end of the MTS machine.

[0029] On the basis of the installed test device, according to the actual working state of the right-angle viscoelastic damper at the beam-column node, the MTS machine is used to apply a predetermined frequency and displacement to the shear steel plate of the right-angle viscoelastic damper, causing the right-angle viscoelastic damper to undergo shear deformation; when studying the correlation issues of the damper, multiple dampers are required, and the vertical bolts can be disassembled to facilitate the replacement of the connecting steel plates and dampers.

[0030] The present invention provides a test system and test method based on a right-angle viscoelastic damper. The above content is only a preferred example of the present invention and is not intended to limit the present invention. Various modifications and improvements made by ordinary technicians in this field without departing from the essence and principles of the present invention should also be considered as the scope of protection of the present invention.

Claims

1. A test system based on a right-angle viscoelastic damper, characterized by: The invention comprises a right-angle steel plate (1), a triangular steel plate (2), a table bolt (3), a vertical bolt (4), a workbench (5), a right-angle viscoelastic damper (6), a connecting steel plate (7), and a clamping rod (8); the triangular steel plate (2) is composed of two pieces, and its two right-angle sides are connected to the two sides of the right-angle steel plate (1); the transverse steel plate of the right-angle steel plate (1) is arranged on the workbench (5), and the vertical steel plate is combined with the connecting steel plate (7); the right-angle viscoelastic damper (6) is connected to the connecting steel plate (7) and is fixed on the vertical steel plate of the right-angle steel plate (1) along with the connecting steel plate (7); a clamping rod (8) is arranged on the upper part of the right-angle viscoelastic damper (6).

2. A test system based on a right-angle viscoelastic damper according to claim 1, characterized in that: The triangular steel plate (2) and the right-angle steel plate (1), and the right-angle viscoelastic damper (6) and the connecting steel plate (7) are connected and fixed by welding.

3. The test system based on a right-angle viscoelastic damper according to claim 1, characterized in that: A plurality of bolt holes are provided on the right-angle steel plate (1) and the connecting steel plate (7); the right-angle steel plate (1) is fixedly connected to the workbench (5) via table bolts (3); and the right-angle steel plate (1) and the connecting steel plate (7) are fixedly connected via vertical bolts (4).

4. The test system based on a right-angle viscoelastic damper according to claim 1, characterized in that: The workbench (5) is provided with two inverted T-shaped slots, and the heads of the table bolts (3) are arranged in the slots, and the sizes of the inverted T-shaped slots are adapted to the sizes of the inverted T-shaped slots, so that the slots can limit the displacement of the bolt heads.

5. The test system based on a right-angle viscoelastic damper according to claim 1, characterized in that: It is connected to the upper fixed end of the MTS machine via a clamping rod (8).

6. A test method based on a right-angle viscoelastic damper, characterized in that: The test system based on the right-angle viscoelastic damper according to any one of claims 1 to 5 is implemented, and the test method comprises the following steps: After setting the table bolts in the corresponding positions of the inverted T-shaped slots, place the right-angle steel plate with the triangular steel plate on the workbench where the table bolts are placed, and tighten the nuts to secure it. Connect the connecting steel plate of the welded right-angle viscoelastic damper to the vertical steel plate of the right-angle steel plate with vertical bolts. Secure the damper clamping rod to the upper fixed end of the MTS machine. On the basis of the installed test device, according to the actual working state of the right-angle viscoelastic damper at the beam-column node, the MTS machine is used to apply a predetermined frequency and displacement to the shear steel plate of the right-angle viscoelastic damper, causing the right-angle viscoelastic damper to undergo shear deformation; when studying the correlation issues of the damper, multiple dampers are required, and the vertical bolts can be disassembled to facilitate the replacement of the connecting steel plates and dampers.

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