A damping device for prefabricated components of a fabricated building

Abstract

The application provides an assembled building prefabricated component damping device, and belongs to the technical field of assembled buildings. The damping device comprises a first connecting piece fixedly arranged on the top of a support platform, a buffer groove and a second connecting piece. The first connecting piece has a support top surface. The buffer groove is fixedly arranged on the support top surface. The second connecting piece is arranged at the bottom end of the prefabricated component. The prefabricated component is arranged in the middle part of the buffer groove through the second connecting piece and is fixedly connected with the first connecting piece. The buffer groove is filled with flexible buffer material. The flexible buffer material is filled between the inner side wall of the buffer groove and the prefabricated component and is used for reducing the shaking amplitude of the prefabricated component. The prefabricated component of the building is used for enhancing the anti-seismic performance of the building under extreme conditions such as earthquakes, so that the shaking amplitude in the horizontal direction can be reduced, and the safety performance of the whole building is not affected.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of prefabricated buildings, and particularly relates to a damping device for prefabricated components of prefabricated buildings. BACKGROUND

[0002] With the increasing requirements of the construction industry for energy saving, environmental protection and construction efficiency, prefabricated buildings have gradually become an important development trend. Prefabricated buildings can significantly improve construction speed and reduce the complexity and labor demand of on-site construction through the on-site assembly of prefabricated components. However, the structural characteristics of prefabricated buildings are different from those of traditional buildings, and may face some unique challenges, especially in terms of seismic performance.

[0003] The prefabricated components of prefabricated buildings are usually connected by connectors such as bolts, steel bars, etc., and the strength and stiffness of these connectors are crucial to the overall seismic capacity of the building. However, due to the insufficient stiffness of these connectors, the building may experience large vibrations under external impacts such as earthquakes, thereby increasing the risk of building damage. Especially for prefabricated components such as columns or walls that play a supporting role, if the bottom position connection is unstable after assembly, the prefabricated components may sway significantly and be damaged when subjected to external vibrations, affecting the overall stability of the prefabricated building.

[0004] Therefore, it is necessary to provide an improved technical solution to address the above-mentioned deficiencies of the prior art. SUMMARY

[0005] The present application aims to provide a damping device for prefabricated components of prefabricated buildings, which can enhance the seismic performance of the prefabricated components of the building under extreme conditions such as earthquakes, reduce the sway amplitude in the horizontal direction, and ensure the overall safety performance of the building is not affected.

[0006] To achieve the above-mentioned purpose, the damping device for prefabricated components of prefabricated buildings of the present application provides the following technical solution:

[0007] A damping device for prefabricated components of prefabricated buildings, comprising:

[0008] a first connector fixedly arranged on the top of the support platform, the first connector having a support top surface;

[0009] a buffer groove fixedly arranged on the support top surface;

[0010] a second connector arranged at the bottom end of the prefabricated component, the prefabricated component being arranged in the middle of the buffer groove and fixedly connected with the first connector through the second connector;

[0011] The buffer tank is filled with flexible buffer material, which is filled between the inner side wall of the buffer tank and the prefabricated component to reduce the swing range of the prefabricated component.

[0012] As a further optimized technical solution, the first connecting piece has a connecting plate and an anchoring rib, one end of the anchoring rib is fixedly connected with the connecting plate, and the other end extends away from the connecting plate, and the side of the connecting plate away from the anchoring rib constitutes the supporting top surface.

[0013] As a further optimized technical solution, it further comprises a support reinforcing member, which is arranged in the buffer tank around the prefabricated component.

[0014] As a further optimized technical solution, the support reinforcing member is a support rod, which is arranged obliquely, one end of the support rod abuts against the first connecting piece, and the other end abuts against the outer side wall of the prefabricated component.

[0015] As a further optimized technical solution, a plurality of groups of support rods are arranged along the height extension direction of the prefabricated component, and the included angle between the support rods and the prefabricated component gradually decreases from top to bottom.

[0016] As a further optimized technical solution, the flexible buffer material is arranged in layers, and the hardness of the flexible buffer material arranged in layers gradually increases from top to bottom.

[0017] As a further optimized technical solution, the buffer material comprises a buffer layer and a stabilizing layer arranged from top to bottom, and the top surface of the stabilizing layer is arranged obliquely and gradually inclines downward from the side close to the prefabricated component to the side away from the prefabricated component.

[0018] As a further optimized technical solution, a fixing component for supporting the wall of the buffer tank is vertically arranged on the first connecting piece; the fixing component is a stopper rod arranged at intervals outside the buffer tank, the bottom end of the stopper rod is fixedly connected with the first connecting piece, and the upper part extends upward and supports the buffer tank to reduce the deformation of the buffer tank.

[0019] As a further optimized technical solution, the second connecting piece comprises a connecting groove with an opening facing the prefabricated component, the bottom of the connecting groove is fixedly connected with the first connecting piece, a sliding block is slidingly arranged in the connecting groove, the top end of the sliding block is fixedly connected with the prefabricated component, and elastic buffer components are arranged at intervals in the circumference of the sliding block.

[0020] As a further optimized technical solution, the cross-sectional size of the sliding block is greater than the cross-sectional size of the prefabricated component, and the prefabricated component is fixedly connected with the middle part of the sliding block.

[0021] Beneficial effects: The prefabricated component of the application is fixedly connected to the first connecting piece of the support platform through the second connecting piece, and the buffer groove is arranged at the bottom of the prefabricated component, and the flexible buffer material is filled in the buffer groove, so that when the prefabricated component is subjected to external impact such as earthquake and appears large vibration, the flexible buffer material can fully absorb and buffer the deformation energy of the horizontal shaking of the prefabricated component in the buffer groove, so as to effectively reduce the shaking amplitude of the prefabricated component, ensure the firmness of the prefabricated component, and further ensure the firmness and safety of the whole fabricated building. BRIEF DESCRIPTION OF DRAWINGS

[0022] The drawings accompanying the specification of this application form a part thereof, serve to provide further understanding of the application, and together with the description of the exemplary embodiments of the application, explain the application, and do not constitute an improper limitation on the application. Among them:

[0023] Figure 1 The top view of an embodiment of the application

[0024] Figure 2 For Figure 1 The cross-sectional view in A-A direction.

[0025] In the figure: 1, support platform; 2, first connecting piece; 201, support top surface; 202, connecting plate; 203, anchoring bar; 3, buffer groove; 4, second connecting piece; 401, connecting groove; 402, sliding block; 403, elastic buffer component; 5, flexible buffer material; 501, buffer layer; 502, stabilizing layer; 6, prefabricated component; 7, support reinforcement; 8, fixing component. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the application will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the application, not all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art belong to the scope of protection of the application.

[0027] In the description of the application, the orientations or positional relationships indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the application, and do not require the application to be constructed and operated in a particular orientation, so it cannot be understood as a limitation on the application. The terms "connected", "connected" used in the application should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected; it can be directly connected, or it can be indirectly connected through an intermediate part. For those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0028] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0029] The shapes and sizes of the components in the accompanying drawings do not reflect the actual proportions of the product; they are only intended to illustrate the content of this invention.

[0030] Precast components in prefabricated buildings are typically connected using connectors (such as bolts and reinforcing bars), the strength and stiffness of which are crucial to the building's overall seismic resistance. However, insufficient stiffness in these connectors can lead to significant vibrations in the building under external impacts such as earthquakes, increasing the risk of damage. This is especially true for precast components like columns or walls; if the bottom connection is unstable after assembly, the entire precast component may sway considerably during strong vibrations, potentially causing damage.

[0031] To address the aforementioned technical problems, this invention proposes a vibration damping device for prefabricated components of assembled buildings. This device reduces the horizontal sway of the prefabricated components by incorporating buffer grooves and flexible buffer materials as a buffer structure, thereby ensuring the overall stability of the assembled building. The following detailed description uses a column as a specific embodiment to illustrate this device.

[0032] Example 1

[0033] like Figure 1 , Figure 2 As shown, the vibration damping device for prefabricated components of prefabricated buildings includes a first connector 2 fixedly installed on the top of the support platform 1, a buffer groove 3 fixedly installed on the first connector 2, a second connector 4 for connecting the prefabricated component 6 and the first connector 2, and a flexible buffer material 5 filled in the buffer groove 3.

[0034] The first connector 2 has a supporting top surface 201 for supporting the precast component 6, thereby facilitating connection with the precast component 6. In this embodiment, the first connector 2 includes a connecting plate 202 and an anchoring bar 203. One end of the anchoring bar 203 is fixedly connected to the connecting plate 202 by welding, and the other end extends away from the connecting plate 202. The side of the connecting plate 202 away from the anchoring bar 203 forms the aforementioned supporting top surface 201. Specifically, the top of the support base 1 is provided with a groove whose shape matches the connecting plate 202. The first connector 2 is disposed in the groove and integrally cast with the support base 1. In this way, the supporting top surface 201 of the first connector 2 is flush with the top surface of the support base 1, thereby facilitating the installation of the precast component 6.

[0035] The buffer groove 3 is open at the top and fixed at the bottom on the support top surface 201, and the sidewall of the buffer groove 3 and the support top surface 201 enclose a storage space for the flexible buffer material 5.

[0036] The second connecting piece 4 is a connecting groove 401 with an opening facing the prefabricated component 6, and the bottom of the connecting groove 401 is fixedly connected with the first connecting piece 2. A sliding block 402 is slidingly arranged in the connecting groove 401, and the top end of the sliding block 402 is fixedly connected with the prefabricated component 6. The sliding block 402 is circumferentially spaced apart to be provided with elastic buffer components 403, one end of the elastic buffer components 403 abutting against the sliding block 402, and the other end abutting against the sidewall of the connecting groove 401. In this way, the prefabricated component 6 and the support deck 1 can adapt to a certain displacement, and the first connecting piece 2 and the second connecting piece 4 can allow the prefabricated component 6 and the support deck 1 to relatively displace within a certain range while maintaining the connecting force, thereby avoiding stress concentration and premature damage caused by rigid connection. The elastic buffer components 403 can allow a certain degree of relative deformation during an earthquake, absorb and dissipate seismic energy, and reduce stress concentration at the connecting part. At the same time, the elastic buffer components 403 can also compensate for the slight displacement of the prefabricated component 6, thereby avoiding damage to the prefabricated component 6 caused by rigid connection.

[0037] Further, in order to ensure the stability of the prefabricated component 6, the cross-sectional dimension of the sliding block 402 is greater than the cross-sectional dimension of the prefabricated component 6, and the prefabricated component 6 is fixedly connected with the middle part of the sliding block 402.

[0038] The flexible buffer material 5 is filled between the inner sidewall of the buffer groove 3 and the prefabricated component 6 to reduce the swing amplitude of the prefabricated component 6. In addition, the prefabricated component 6 is arranged in the middle part of the buffer groove 3 during installation, so that the buffering force of the flexible buffer material 5 on the prefabricated component 6 remains balanced, thereby more favorably maintaining the balance of the prefabricated component 6 during horizontal swing.

[0039] In the present application, the flexible buffer material 5 can be made of rubber particles, rubber foam particles, softwood materials combined with polyurethane adhesive to form particles, which not only have good buffering performance, but also have the characteristics of light weight and environmental protection. In other embodiments, the flexible buffer material 5 can also use, for example, nano-material modified rubber or new high-performance polymer foam material. These materials can have more excellent energy absorption and recovery performance, and can more effectively reduce the swing amplitude of the prefabricated component 6. For example, the addition of nano-materials can enhance the strength and toughness of the rubber, so that it can still maintain good buffering effect after multiple deformations.

[0040] Further, the flexible buffering material 5 is arranged in layers, and the hardness of the flexible buffering material 5 arranged in layers gradually increases from top to bottom. Specifically, the flexible buffering material 5 arranged in layers can achieve different hardness required by different layers by arranging different tightness, or can achieve different hardness required by different layers by selecting different materials for different layers, and the selection is specifically made according to actual conditions.

[0041] The arrangement of the flexible buffering material 5 in layers can make the prefabricated component 6 have appropriate buffering response under different shaking amplitudes. Because the shaking amplitude of the prefabricated component 6 under the condition of horizontal earthquake damage energy increases with the increase of height, the hardness of the lower layer of the flexible buffering material 5 is set to be higher than that of the upper layer, so that the lower layer of the flexible buffering material 5 buffers the energy while further ensuring the stability of the prefabricated component 6. The upper layer of the flexible buffering material 5 which is relatively soft is more conducive to buffering the deformation of the prefabricated component 6.

[0042] In the embodiment, the flexible buffering material 5 is arranged in two layers, which are a buffering layer 501 and a stabilizing layer 502 arranged from top to bottom. The buffering layer 501 and the stabilizing layer 502 are made of the same material, but the stabilizing layer 502 is processed to be more compact, so the density of the stabilizing layer 502 is greater than that of the buffering layer 501.

[0043] Further, the top surface of the stabilizing layer 502 is inclined and gradually inclines downward from the side close to the prefabricated component 6 to the side away from the prefabricated component 6. In this way, the width of the buffering layer 501 gradually decreases from top to bottom, and the width of the stabilizing layer 502 gradually increases from top to bottom. The buffering layer 501 can better achieve the buffering response to the prefabricated component 6, and the stabilizing layer 502 can better play the role of stable support to the prefabricated component 6.

[0044] Further, the shock absorption device of the prefabricated component of the fabricated building further comprises a support reinforcing member 7, which is arranged in the buffering groove 3 around the prefabricated component 6 in the circumferential direction, and is used to further support the prefabricated component 6.

[0045] In the embodiment, the support reinforcing member 7 is a support rod, which is arranged obliquely. One end of the support rod abuts against the first connecting member 2 and is welded and fixed with the first connecting member 2, and the other end abuts against the outer side wall of the prefabricated component 6. In this way, the flexible buffering material 5 in the buffering groove 3 and the support reinforcing member 7 jointly act, thereby further reducing the damage of horizontal vibration to the prefabricated component 6. And under normal circumstances, although the prefabricated component 6 is not rigidly connected with the support pile cap 1, it can also remain stable under the action of the support reinforcing member 7. When subjected to a huge earthquake energy impact, the prefabricated component 6 slightly displaces in the connecting groove 401 through the sliding block 402 to unload excessive damage energy, thereby avoiding damage caused by stress concentration at the bottom end of the prefabricated component 6. In this process, the support reinforcing member 7 is slightly deformed to adapt to the displacement of the prefabricated component 6.

[0046] Further, the support rods are arranged in multiple groups along the height extension direction of the prefabricated component 6, and specifically as shown in Figure 2 As shown, the included angle between the support rods and the prefabricated component 6 gradually decreases from top to bottom. That is, the support rods are arranged in multiple layers in the buffer groove 3 to sufficiently support the prefabricated component 6.

[0047] In the embodiment, in order to further buffer and absorb the deformation energy of the prefabricated component 6, the groove wall of the buffer groove 3 is made of high-strength rubber material. High-strength rubber refers to the rubber required by products such as tires that bear high strength, which has elastic buffer deformation capacity and also has certain supporting performance.

[0048] In order to ensure the shape stability of the buffer groove 3, the first connecting piece 2 is vertically provided with a fixing component 8 supporting the groove wall of the buffer groove 3, so as to sufficiently support the buffer groove 3.

[0049] Further, the fixing component 8 is a stop rod arranged at intervals outside the buffer groove 3, the bottom end of the stop rod is fixedly connected with the first connecting piece 2, and the upper part extends upward and supports the buffer groove 3, so as to reduce the deformation of the buffer groove 3.

[0050] The above device specifically in use, when a larger external impact such as earthquake occurs, the prefabricated component 6 is prone to large amplitude horizontal shaking, by arranging the buffer groove 3, the flexible buffer material 5 and the support reinforcement 7 in the buffer groove 3 will sufficiently absorb the deformation energy of the prefabricated component 6, and "soft with hard" fully support the prefabricated component 6, so as to ensure the connection strength of the prefabricated component 6, improve the overall seismic performance of the prefabricated building, and further ensure the stability of the prefabricated building.

[0051] It can be understood that the above description is only exemplary, and the embodiments of the present application do not limit this.

[0052] The above is only a preferred embodiment of the present application, and does not limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application is within the scope of protection of the claims of the present application.

Claims

1. A damping device for prefabricated components of a modular building, characterized by, The utility model relates to a prefabricated component support device, including: The first connecting piece (2) is fixedly arranged on the top of the support platform (1), and the first connecting piece (2) has a support top surface (201); The buffer groove (3) is fixedly arranged on the support top surface (201); The second connecting piece (4) is arranged at the bottom end of the prefabricated component (6), and the prefabricated component (6) is arranged in the middle of the buffer groove (3) through the second connecting piece (4) and is fixedly connected with the first connecting piece (2); The buffer groove (3) is filled with flexible buffer material (5), and the flexible buffer material (5) is filled between the inner side wall of the buffer groove (3) and the prefabricated component (6) to reduce the swing amplitude of the prefabricated component (6); The flexible buffer material (5) is arranged in layers, and the hardness of the flexible buffer material (5) arranged in layers gradually increases from top to bottom; The flexible buffer material (5) includes buffer layers (501) and stabilizing layers (502) arranged from top to bottom, the top surface of the stabilizing layer (502) is arranged in an inclined manner and gradually inclines downward from the side close to the prefabricated component (6) to the side away from the prefabricated component (6); The second connecting piece (4) includes a connecting groove (401) with an opening facing the prefabricated component (6), the bottom of the connecting groove (401) is fixedly connected with the first connecting piece (2), a sliding block (402) is slidably arranged in the connecting groove (401), the top end of the sliding block (402) is fixedly connected with the prefabricated component (6), and elastic buffer components (403) are circumferentially arranged on the sliding block (402).

2. The damping device for prefabricated components of a fabricated building according to claim 1, characterized in that The first connecting piece (2) has a connecting plate (202) and an anchoring rib (203), one end of the anchoring rib (203) is fixedly connected with the connecting plate (202), the other end extends away from the connecting plate (202), and the side, away from the anchoring rib (203), of the connecting plate (202) constitutes the support top surface (201).

3. The damping device for prefabricated components of a fabricated building according to claim 1, characterized in that, Further including a support reinforcing member (7) arranged in the buffer groove (3) and circumferentially arranged around the prefabricated component (6).

4. The damping device for prefabricated components of a fabricated building according to claim 3, characterized in that The support reinforcing member (7) is a support rod, the support rod is arranged in an inclined manner, one end of the support rod abuts against the first connecting piece (2), and the other end abuts against the outer side wall of the prefabricated component (6).

5. The damping device for prefabricated components of a fabricated building according to claim 4, characterized in that A plurality of groups of support rods are arranged along the height extension direction of the prefabricated component (6), and the included angle between the support rods and the prefabricated component (6) gradually decreases from top to bottom.

6. The damping device for prefabricated components of a modular building according to any one of claims 1 to 5, characterized in that A fixing component (8) for supporting the groove wall of the buffer groove (3) is vertically arranged on the first connecting piece (2); the fixing component (8) is a stopper rod arranged at intervals outside the buffer groove (3), the bottom end of the stopper rod is fixedly connected with the first connecting piece (2), the upper part extends upward and supports the buffer groove (3), so as to reduce the deformation of the buffer groove (3).

7. The damping device for prefabricated components of a fabricated building according to claim 1, characterized in that, The cross-sectional dimension of the sliding block (402) is greater than the cross-sectional dimension of the prefabricated component (6), and the prefabricated component (6) is fixedly connected in the middle of the sliding block (402).

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