Z-type frictional damping column piece structure with enhanced anti-seismic performance

Abstract

This utility model discloses a Z-shaped friction damping column structure with enhanced seismic performance, comprising a Z-shaped friction damping column body, which includes columns on both sides and Z-shaped crossbars between the columns. The top and bottom of the Z-shaped crossbars between the columns are respectively provided with top friction damping diagonal braces and bottom friction damping crossbars. When an earthquake generates a load on the rack in the direction perpendicular to the aisle, and the axial force caused on the base and the bottom and top diagonal braces exceeds the preset friction force, the damper will begin to slide, absorbing or dissipating some of the seismic energy in the form of friction damping. This reduces the probability of damage to rack structural components and goods slippage under seismic conditions, thereby enhancing the overall seismic performance of the industrial rack.

Description

Technical Field

[0001] This utility model relates to a Z-shaped friction damping column structure with enhanced seismic performance, belonging to the field of warehousing equipment technology. Background Technology

[0002] In current seismic design of steel racks, stress ratio and displacement control requirements are usually met by increasing the stiffness of the components. However, increasing the overall structural stiffness will inevitably lead to aggravated seismic dynamic response, accelerate the plastic damage rate of the racks, and make the acceleration response of the rack system more prominent, greatly increasing the risk of goods slipping off under seismic impact.

[0003] Currently, the vibration reduction design of steel racks mainly employs rubber bearings for buffering or the installation of dampers on local components. This allows the structure to achieve higher initial stiffness, maintaining its elastic state under lower levels of seismic loads. Simultaneously, under higher levels of seismic load impact, the damping energy dissipation devices first enter an inelastic state, thus protecting the main structural components from plastic deformation. Related research indicates that under seismic loads, the deformation and plastic hinge degree in the top and bottom regions of the rack structure are more severe, meaning that under subsequent or even stronger seismic impacts, the plastic hinge degree in these weak points is likely to worsen further, ultimately leading to continuous structural collapse. Furthermore, in seismic environments, the insufficient dynamic stiffness of the Z-shaped column structure intensifies the rack's sway perpendicular to the aisle, inducing cargo slippage. Therefore, corresponding improvement measures are needed to address these weak points, namely, installing damping devices at the top and bottom of the rack structure to improve the overall dynamic stability of the rack. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a shelf structure that can absorb earthquake energy and enhance seismic performance, so as to achieve the purpose of shock absorption and energy dissipation and prevent goods from slipping off.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: to provide a Z-shaped friction damping column plate structure with enhanced seismic performance, including a Z-shaped friction damping column plate body, the Z-shaped friction damping column plate body including columns on both sides and Z-shaped crossbars between the columns, the top and bottom of the Z-shaped crossbars between the columns are respectively provided with top friction damping diagonal brace and bottom friction damping cross brace.

[0006] Preferably, the top friction damping brace includes a long C-shaped friction plate in the middle and diagonal braces sleeved on the outer sides of both ends of the plate. The long C-shaped friction plate has a diagonal brace friction plate on its inner side, and the diagonal brace friction plate, the long C-shaped friction plate and the diagonal brace are connected in sequence.

[0007] More preferably, the inclined friction plate, the long C-shaped friction plate, and the inclined brace are fixedly connected by bolts.

[0008] Furthermore, the diagonal brace is provided with a round hole for connection with bolts, the diagonal brace friction plate is provided with a plurality of round holes for connection with bolts, and the long C-shaped friction plate is provided with an elongated round hole for connection with bolts.

[0009] Preferably, the bottom friction damping cross brace includes a short C-shaped friction plate in the middle and cross braces sleeved on the outer sides of both ends of the plate. The cross brace friction plate is provided on the inner side of the short C-shaped friction plate, and the cross brace friction plate, the short C-shaped friction plate, and the cross brace are connected in sequence.

[0010] More preferably, the cross brace friction plate, the short C-shaped friction plate, and the cross brace are fixedly connected by bolts.

[0011] Furthermore, the cross brace is provided with round holes for connection with bolts, the cross brace friction plate is provided with multiple round holes for connection with bolts, and the short C-shaped friction plate is provided with elongated holes for connection with bolts.

[0012] Preferably, the bottom of the Z-shaped friction damping column body is provided with a friction damping base.

[0013] More preferably, the friction damping base includes a friction column, with two pairs of support bases respectively provided on the outer sides of both ends of the friction column, and a base friction plate respectively provided on both sides of the friction column in the length direction.

[0014] Furthermore, the base friction plate, friction column, and support base are fixedly connected by bolts; the base friction plate and support base are provided with round holes for connecting with bolts, the friction column is provided with elongated holes for connecting with bolts, and the support base is also provided with fixing holes for connecting with the mounting surface.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. In view of the problem that the supporting components of the rack structure have poor energy dissipation capacity in the vertical aisle direction, the friction damping base and friction damping diagonal (horizontal) brace in this invention can effectively absorb seismic energy, so as to achieve the goals of shock reduction, energy dissipation and preventing goods from slipping off.

[0017] 2. The friction damping base and bottom friction damping cross brace in this invention serve to suppress the swaying of the shelf under earthquake action; the top friction damping diagonal brace serves to enhance the shear stiffness of the shelf upright structure.

[0018] 3. All components in this invention have only round or oblong holes, making them easy to manufacture. They are connected by high-strength bolts, simplifying assembly and facilitating production.

[0019] 4. In this invention, except for the long / short C-shaped friction plates, the specifications and dimensions of the bottom friction damping cross brace and the top friction damping diagonal brace are the same, which facilitates production and installation.

[0020] 5. In this invention, all components are connected only by high-strength bolts, making assembly simple and meeting the requirements of prefabricated construction.

[0021] 6. The present invention can adjust the preload of high-strength bolts or use different friction plate materials to control the magnitude of friction force in order to adapt to the energy consumption needs of different situations. Attached Figure Description

[0022] Figure 1 A schematic diagram of the structure of the Z-type friction damping column plate provided by this utility model;

[0023] Figure 2 This is a three-dimensional assembly drawing of the friction damping base;

[0024] Figure 3 This is a front view of the friction damping base;

[0025] Figure 4 for Figure 3 Top view;

[0026] Figure 5 for Figure 3 Side view;

[0027] Figure 6 A 3D view of the supporting base;

[0028] Figure 7 The front view of the supporting base;

[0029] Figure 8 for Figure 7 Top view;

[0030] Figure 9 This is a three-dimensional view of the friction column;

[0031] Figure 10 This is the front view of the friction column;

[0032] Figure 11 for Figure 10 Top view;

[0033] Figure 12 This is a 3D view of the friction plate on the base.

[0034] Figure 13 This is a 3D assembly drawing of the bottom friction damping cross brace;

[0035] Figure 14 Front view of the bottom friction damping cross brace;

[0036] Figure 15 for Figure 14 Side view;

[0037] Figure 16 A three-dimensional diagram of the horizontal brace;

[0038] Figure 17 This is the front view of the cross brace;

[0039] Figure 18 A three-dimensional view of a short C-shaped friction plate;

[0040] Figure 19 This is the front view of the short C-shaped friction plate;

[0041] Figure 20 This is a three-dimensional view of the cross-bracing friction plate. Detailed Implementation

[0042] To make this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings.

[0043] Example

[0044] like Figure 1-20 As shown, this utility model provides a Z-shaped friction damping column plate structure with enhanced seismic performance, including a Z-shaped friction damping column plate body. The Z-shaped friction damping column plate body includes columns 5 on both sides and a Z-shaped crossbar between the columns 5. The top and bottom of the Z-shaped crossbar between the columns 5 are respectively provided with a top friction damping diagonal brace and a bottom friction damping cross brace. The bottom of the Z-shaped friction damping column plate body is provided with a friction damping base.

[0045] The top friction damping diagonal brace and the bottom friction damping transverse brace have the same structure. The top friction damping diagonal brace includes a long C-shaped friction plate 6 in the middle and diagonal braces 7 sleeved on the outer sides of both ends. The inner side of the long C-shaped friction plate 6 is provided with a diagonal brace friction plate. The diagonal brace friction plate, the long C-shaped friction plate 6, and the diagonal braces 7 are sequentially fixedly connected by bolts. The diagonal brace 7 is provided with a pair of round holes for bolt connection, the diagonal brace friction plate is provided with a row of multiple round holes for bolt connection, and the long C-shaped friction plate 6 is provided with an elongated hole for bolt connection.

[0046] The bottom friction damping cross brace includes a short C-shaped friction plate 10 in the middle and cross braces 8 sleeved on the outer sides of both ends. A cross brace friction plate 11 is provided on the inner side of the short C-shaped friction plate 10. The cross brace friction plate 11, the short C-shaped friction plate 10, and the cross brace 8 are sequentially fixedly connected by bolts. The cross brace 8 has a pair of round holes for bolt connection, the cross brace friction plate 11 has a row of multiple round holes for bolt connection, and the short C-shaped friction plate 10 has an elongated hole for bolt connection.

[0047] The friction damping base includes a friction column 1, with two pairs of inverted T-shaped support bases 2 on the outer sides of both ends of the friction column 1, and a base friction plate 3 on each side of the inner length direction of the friction column 1. The base friction plate 3, friction column 1, and support base 2 are sequentially fixedly connected by bolts 9. The base friction plate 3 and support base 2 are provided with a row of three round holes for bolt connection. The friction column 1 is provided with an elongated hole 102 for bolt connection and a connecting hole 101 for connection with the column base 4 at the bottom of the column 5. The support base 2 is also provided with a row of three fixing holes for connection with the mounting surface.

Claims

1. A Z-shaped friction damping column plate structure with enhanced seismic performance, comprising a Z-shaped friction damping column plate body, the Z-shaped friction damping column plate body comprising columns (5) on both sides and a Z-shaped crossbar between the columns (5), characterized in that, The top and bottom of the Z-shaped crossbars between the columns (5) are respectively provided with top friction damping diagonal brace and bottom friction damping cross brace.

2. The enhanced energy-resistant Z-shaped frictional damped stud tab structure of claim 1, wherein, The top friction damping brace includes a long C-shaped friction plate (6) in the middle and braces (7) sleeved on the outer sides of both ends. The long C-shaped friction plate (6) is provided with a brace friction plate on the inner side. The brace friction plate, the long C-shaped friction plate (6) and the brace (7) are connected in sequence.

3. The enhanced for seismic performance Z-shaped frictional damped stud tab structure of claim 2, wherein, The inclined friction plate, the long C-shaped friction plate (6), and the inclined brace (7) are fixedly connected by bolts.

4. The enhanced for seismic performance Z-shaped frictional damped stud tab structure of claim 3, wherein, The diagonal brace (7) is provided with a round hole for connecting with bolts, the diagonal brace friction plate is provided with a plurality of round holes for connecting with bolts, and the long C-shaped friction plate (6) is provided with an elongated round hole for connecting with bolts.

5. The Z-shaped friction damping column structure with enhanced seismic performance as described in claim 1, characterized in that, The bottom friction damping cross brace includes a short C-shaped friction plate (10) in the middle and cross braces (8) sleeved on the outer sides of both ends of the plate. A cross brace friction plate (11) is provided on the inner side of the short C-shaped friction plate (10). The cross brace friction plate (11), the short C-shaped friction plate (10), and the cross brace (8) are connected in sequence.

6. The enhanced for seismic performance Z-shaped frictional damped stud tab structure of claim 5, wherein, The cross brace friction plate (11), the short C-shaped friction plate (10), and the cross brace (8) are fixedly connected by bolts.

7. The enhanced for seismic performance Z-shaped frictional damped stud tab structure of claim 6, wherein, The cross brace (8) is provided with a round hole for connecting with bolts, the cross brace friction plate (11) is provided with a plurality of round holes for connecting with bolts, and the short C-shaped friction plate (10) is provided with an elongated hole for connecting with bolts.

8. The enhanced for seismic performance Z-shaped frictional damped post and panel construction according to any of claims 1 to 7, characterized in that, The Z-shaped friction damping column body is provided with a friction damping base at its bottom.

9. The enhanced for seismic performance Z-shaped frictional damped stud tab structure of claim 8, wherein, The friction damping base includes a friction column (1), two pairs of support bases (2) are provided on the outer sides of both ends of the friction column (1), and a base friction plate (3) is provided on both sides of the friction column (1) in the length direction.

10. The enhanced for seismic performance Z-shaped frictional damped post and panel construction of claim 9, wherein, The base friction plate (3), friction column (1), and support base (2) are fixedly connected by bolts (9); the base friction plate (3) and support base (2) are provided with round holes for connecting with bolts, the friction column (1) is provided with elongated holes (102) for connecting with bolts, and the support base (2) is also provided with fixing holes for connecting with the mounting surface.

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