Structural beam-column joint damping device

Abstract

The utility model provides a damping device for a structural beam-column joint. The damping device comprises two mounting seats, a damping device and a damping device, wherein the two mounting seats are respectively mounted on a structural beam and a structural column; the two inclined struts are arranged in a spaced mode, and the two ends of each inclined strut are detachably connected with the two mounting bases correspondingly; and the steel plate damper is arranged between the two inclined struts and is respectively connected with the two inclined struts. The connecting structure has double functions of bearing and energy consumption, and can effectively reduce the earthquake damage of the connecting node of the structural beam and the structural column.

Description

Technical Field

[0001] This utility model belongs to the field of building engineering technology, and in particular relates to a damping device for structural beam-column joints. Background Technology

[0002] With the increasing prevalence of high-rise buildings and large, complex structures, effectively improving their seismic performance has become a key focus for engineers. While traditional steel structures offer advantages such as high strength, light weight, and ease of construction, their toughness and seismic resistance still need improvement when facing strong earthquakes and other natural disasters. Furthermore, the connection points between traditional steel beams and columns are typically directly welded or bolted, often leading to failure during earthquakes. To improve the load-bearing capacity and stiffness of these connections, bracing is commonly used at the beam-column joints. However, bracing only provides stiffness; its energy dissipation capacity is poor, and increased stiffness can easily cause brittle failure at the connection between the bracing and the beam / column. Therefore, the poor seismic performance of traditional steel beam-column connection points is a problem that urgently needs to be addressed. Utility Model Content

[0003] The purpose of this invention is to provide a damping device for structural beam-column joints, which has both load-bearing and energy-dissipating functions and can effectively reduce seismic damage to the connection nodes of structural beams and columns.

[0004] This utility model is achieved through the following technical solution:

[0005] A structural beam-column joint damping device, comprising:

[0006] Two mounting brackets, one for installation on structural beams and the other for installation on structural columns;

[0007] Two diagonal braces are provided, spaced apart, and the two ends of each diagonal brace are detachably connected to the two mounting bases respectively.

[0008] A steel plate damper is disposed between the two diagonal braces and is connected to the two diagonal braces respectively.

[0009] Furthermore, the steel plate damper includes two base plates and a plurality of shear steel plates spaced apart between the two base plates, with the two base plates respectively connected to the two diagonal braces.

[0010] Furthermore, the width of the sheared steel plate gradually decreases from both ends toward the middle.

[0011] Furthermore, the thickness of the sheared steel plate gradually decreases from both ends towards the middle.

[0012] Furthermore, the mounting base includes a mounting plate and a connecting plate vertically disposed on the mounting plate, the connecting plate being detachably connected to the diagonal brace.

[0013] Furthermore, the mounting plate has multiple through holes.

[0014] Compared with existing technologies, the beneficial effects of this utility model are as follows: the diagonal brace can improve the stiffness of the connection node between the structural beam and the structural column, increase the load-bearing capacity of the connection node, and protect the connection node. At the same time, it can also guide the force on the connection node to be transmitted to the steel plate damper, allowing the steel plate damper to yield and dissipate energy before the connection node, and the diagonal brace to deform last. This achieves the dual function of load bearing and energy dissipation, reduces the seismic energy of the connection node, improves the seismic performance of the connection node, and protects the safety of the connection node. The diagonal brace and the mounting base are detachably connected. If the steel plate damper is damaged after an earthquake, a new steel plate damper can be replaced. The maintenance cost is low, and it has good prospects for promotion and application. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of the beam-column joint damping device of this utility model;

[0016] Figure 2 This is a schematic diagram of the structural beam-column joint damping device of this utility model installed on structural beams and structural columns;

[0017] Figure 3 This is a schematic diagram of the steel plate damper in the structural beam-column joint damping device of this utility model;

[0018] Figure 4 This is a schematic diagram of the mounting base in the structural beam-column joint damping device of this utility model.

[0019] In the diagram, 1-mounting base, 11-mounting plate, 12-connecting plate, 13-through hole, 2-diagonal brace, 3-steel plate damper, 31-base plate, 32-sheared steel plate, 4-structural beam, 5-structural column. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this utility model, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0024] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Please see Figure 1 and Figure 2 , Figure 1 This is a structural schematic diagram of the beam-column joint damping device of this utility model. Figure 2This is a schematic diagram of the structural beam-column joint damping device of this utility model installed on a structural beam and a structural column. A structural beam-column joint damping device includes two mounting seats 1, two diagonal braces 2, and a steel plate damper 3. The two mounting seats 1 are respectively used for installation on a structural beam 4 and a structural column 5. The two diagonal braces 2 are spaced apart, and both ends of the diagonal braces 2 are detachably connected to the two mounting seats 1. The steel plate damper 3 is disposed between the two diagonal braces 2 and is connected to both diagonal braces 2.

[0026] In use, the two mounting bases 1 are respectively installed on the structural beam 4 and the structural column 5, thereby installing the structural beam-column joint damping device of this utility model between the structural beam 4 and the structural column 5. The two diagonal braces 2 can improve the stiffness of the connection joint between the structural beam 4 and the structural column 5, increase the load-bearing capacity of the connection joint, and protect the connection joint. Simultaneously, during an earthquake, the diagonal braces 2 can guide the force on the connection joint to be transmitted to the steel plate damper 3, allowing the steel plate damper 3 to yield and dissipate energy before the connection joint, thus dissipating seismic energy in advance. The diagonal braces 2 deform last, thereby achieving the dual function of load bearing and energy dissipation, reducing the seismic energy of the connection joint, improving the seismic performance of the connection joint, protecting the safety of the connection joint, and thus protecting the seismic safety of the main steel structure. The diagonal braces 2 and the mounting bases 1 are detachably connected. If the steel plate damper 3 is damaged after an earthquake, the diagonal braces 2 can be removed from the mounting bases 1, and a new steel plate damper 3 and diagonal braces 2 can be replaced. Since the steel plate damper 3 is made only of steel, the cost is low, resulting in low maintenance costs and good prospects for widespread application.

[0027] Please refer to the following: Figure 3 , Figure 3 This is a schematic diagram of the steel plate damper in the structural beam-column joint damping device of this utility model. In one embodiment, the steel plate damper 3 includes two base plates 31 and a plurality of shear steel plates 32 spaced apart between the two base plates 31. The two base plates 31 are respectively connected to two diagonal braces 2. The steel plate damper 3 has a simple structure that makes full use of the material properties. In terms of performance, the steel plate damper 3 has good load-bearing capacity, a clear energy dissipation mechanism, and does not occupy too much structural space. Moreover, steel is an economical building material with low cost, making the production cost of the steel plate damper 3 low. In one embodiment, the width of the shear steel plate 32 gradually decreases from both ends to the middle. The width of the middle part of the shear steel plate 32 is smaller than the width of the two ends of the shear steel plate 32, which facilitates fixed-point yielding energy dissipation. In one embodiment, the thickness of the shear steel plate 32 gradually decreases from both ends to the middle. Similarly, the thickness of the middle part of the shear steel plate 32 is smaller than the thickness of the two ends of the shear steel plate 32, which facilitates fixed-point yielding energy dissipation.

[0028] Please refer to the following: Figure 4 , Figure 4This is a schematic diagram of the mounting base in the structural beam-column joint damping device of this utility model. In one embodiment, the mounting base 1 includes a mounting plate 11 and a connecting plate 12 vertically disposed on the mounting plate 11. The connecting plate 12 is detachably connected to the diagonal brace 2. The mounting plate 11 is used to connect to the structural beam 4 or structural column 5, and the connecting plate 12 is used to detachably connect to the diagonal brace 2, facilitating the installation of the diagonal brace 2 and the steel plate damper 3 on the connection node of the structural beam 4 and structural column 5. Furthermore, the connecting plate 12 and the diagonal brace 2 are bolted together, which is convenient and quick to assemble and disassemble and has a reliable connection. In one embodiment, the mounting plate 11 has multiple through holes 13. Through the multiple through holes 13 on the mounting plate 11, the mounting plate 11 can be bolted together with the structural beam 4 or structural column 5, which is convenient and quick to assemble and disassemble and has a reliable connection.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Therefore, any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the content of the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A damping device for a structural beam-column joint, characterized in that, include: Two mounting brackets, one for installation on structural beams and the other for installation on structural columns; Two diagonal braces are provided, spaced apart, and the two ends of each diagonal brace are detachably connected to the two mounting bases respectively. A steel plate damper is disposed between the two diagonal braces and is connected to the two diagonal braces respectively.

2. The structural beam-column joint damping device according to claim 1, characterized in that, The steel plate damper includes two base plates and a plurality of shear steel plates spaced apart between the two base plates, with the two base plates respectively connected to the two diagonal braces.

3. The structural beam-column joint damping device according to claim 2, characterized in that, The width of the sheared steel plate gradually decreases from both ends toward the middle.

4. The structural beam-column joint damping device according to claim 2, characterized in that, The thickness of the sheared steel plate gradually decreases from both ends toward the middle.

5. The structural beam-column joint damping device according to claim 1, characterized in that, The mounting base includes a mounting plate and a connecting plate vertically mounted on the mounting plate, the connecting plate being detachably connected to the diagonal brace.

6. The structural beam-column joint damping device according to claim 5, characterized in that, The mounting plate has multiple through holes.

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