Damper device for timberwork building

Abstract

The utility model discloses a damper device for a wood structure building, which comprises a rhombic steel plate and SMA bars arranged on the rhombic steel plate, and square steel pipes are connected to the top and the bottom of the rhombic steel plate. According to the damper device for the wood structure building, when the wood beam rotates upwards relative to the wood column, the diamond-shaped steel plate begins to stretch and deform, the SMA bar on the inclined lower portion is subjected to tensile force to generate tensile deformation to a certain degree, after external force is removed, the SMA bar returns to drive the damper to return to the original shape, and the damper drives the beam-column joint to rotate so that the wood column and the wood beam can return to the original position; node residual deformation is reduced; when the wood beam rotates downwards relative to the wood column, the rhombic steel plate begins to extrude and deform, the SMA bar on the inclined upper portion generates tensile deformation to a certain degree under the action of tensile force, after external force is removed, the SMA bar recovers and drives the damper to return to the original shape, the damper drives the beam column joint to rotate, so that the wood column and the wood beam return to the original position, and residual deformation of the joint is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of wooden structure buildings, and particularly relates to a damper device for wooden structure buildings. Background Art

[0002] Timber structures are a type of building structure primarily made of wood, with components connected by joints and metal fasteners to form a load-bearing structure. This structural form dates back to early human history and is widely used in traditional architecture around the world. Timber structures use wood as the primary structural material. With a predominantly wooden structure, the load-bearing structure is separated from the supporting structure. The building's weight is entirely supported by the wooden framework, with walls serving only as support and partitions. Timber structures offer considerable design flexibility and can be customized to suit specific spatial requirements.

[0003] Common timber structures are typically composed of columns, beams, purlins, rafters, brackets, mortise and tenon joints, and metal connectors. Columns are upright wooden members supporting the upper structure, beams are horizontal wooden members connecting columns, purlins are horizontal wooden members supporting the roof, and rafters are wooden strips connecting columns and other components, reinforcing and stabilizing the structure. Brackets extend from columns as cantilever beams to support the weight of the eaves, while mortise and tenon joints are secured and connected by splicing wooden components together. Metal connectors, such as metal bolts and nails, secure the components together to form a stable structural system.

[0004] In traditional wooden structures, most damage occurs at the connection nodes. Modern wooden structures widely use metal connectors, which effectively improves the reliability and stability of the nodes. Bolt-steel plate connection nodes are widely used in modern wooden structures due to their advantages such as easy installation and no exposed steel plates. However, with this method, as the wooden components age, the wood will suffer from damage such as shrinkage, swelling, cracking and deformation, which will have an adverse effect on the mechanical properties of the beam-column connection nodes. Under long-term load-bearing or earthquake conditions, the ductility of the nodes is poor, and the energy consumed by deformation at the nodes is limited. For this reason, a damper device for wooden structures is proposed. Summary of the Invention

[0005] In view of the deficiencies of the existing technology, the present invention provides a damper device for wooden structure buildings to solve the above-mentioned technical problems of insufficient energy consumption, insufficient seismic resistance and irreversible deformation at the beam-column nodes under long-term use or earthquake action.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a damper device for a wooden structure building, comprising:

[0007] A diamond-shaped steel plate and an SMA rod disposed in the inner cavity of the diamond-shaped steel plate, wherein the top and bottom of the diamond-shaped steel plate are connected to square steel pipes;

[0008] High-strength bolts are installed between the diamond-shaped steel plates and the square steel tubes, and the ends of the square steel tubes are connected to the side plates and the top plate respectively. By opening a notch on the side of the connection between the square steel tube and the diamond-shaped steel plate, it can be used to clamp the angle of the diamond-shaped steel plate. Since the damper is composed of diamond-shaped steel plates and square steel tubes, when the beams and columns are subjected to external forces, the wooden columns and beams will tend to rotate relative to each other. At this time, the wooden structure bolt steel plate beam-column node will be squeezed due to the external force. At the same time, the external force on the structure is borne by the node and the damper at the same time. At this stage, the wooden columns and beams do not rotate relative to each other. Compared with the original connection method, the reinforcement method provided by this device can improve the initial stiffness of the node. As the external force continues to act, when the external force exceeds a certain limit, the wood, bolts and steel inserts at the connection point squeeze and deform each other, and the beam and column rotate relative to each other. At the same time, the damper begins to squeeze and deform due to the rotation of the beam and column to resist the rotation of the beam and column, thereby consuming the energy of the external force; when the wooden beam rotates upward relative to the wooden column, the diamond steel plate of the damper begins to stretch and deform, and the SMA rod in the oblique downward direction is subjected to tension and produces a certain degree of tensile deformation. After the external force is removed, the SMA rod recovers and drives the damper to return to its original shape. The damper drives the beam-column node to rotate, so that the wooden column and wooden beam return to their original position, and the residual deformation of the node is reduced; when the wooden beam rotates downward relative to the wooden column, the diamond steel plate of the damper begins to squeeze and deform, and the SMA rod in the oblique upward direction is subjected to tension and produces a certain degree of tensile deformation. After the external force is removed, the SMA rod recovers and drives the damper to return to its original shape. The damper drives the beam-column node to rotate, so that the wooden column and wooden beam return to their original position, and the residual deformation of the node is reduced. Not only can the damper and beam-column automatically return to their initial positions after the beam-column joint is deformed by external force, reducing residual deformation, improving the ductility and fatigue resistance of the structure, and ensuring the stability of the structure, but it can also effectively consume earthquake energy under the action of an earthquake, improve the toughness of the beam-column joint of the wooden structure, and enable it to quickly recover its function after the earthquake. At the same time, the node can be modified without changing the connection method of the beam-column node of the wooden structure. It is suitable for new environmentally friendly wooden structure buildings, so that the beam-column node has sufficient energy consumption and earthquake resistance under long-term use or earthquake action, and the deformation generated can be reversed.

[0009] Furthermore, clamping plates are installed on both sides of the center of the inner side surfaces of the side panels and the top panel, and the side panels and the top panel are rotatably connected between the clamping plates and the square steel tubes. This allows the side panels and the top panel to be adjusted in pitch at the ends of the square steel tubes and to be connected to the wooden structure.

[0010] Furthermore, the outer surface of the diamond-shaped steel plate is evenly provided with connecting holes, and the SMA rod is connected to the diamond-shaped steel plate through the connecting holes. The diamond-shaped steel plate and the SMA rod are connected by plugging through the connecting holes. Beneficial effects

[0011] This damper device for timber structures features a notch on the side of the connection between the square steel tube and the diamond-shaped steel plate, which can be used to clamp the angle of the diamond-shaped steel plate. Because the damper is composed of diamond-shaped steel plates and square steel tubes, when the beams and columns are subjected to external forces, the timber columns and beams tend to rotate relative to each other. At this point, the timber structure's bolted steel insert beam-column joints are squeezed by the external forces. Simultaneously, the external forces acting on the structure are borne by both the joint and the damper. During this stage, the timber columns and beams do not rotate relative to each other. Compared to the original connection method, the reinforcement provided by this device can increase the initial stiffness of the joints. As the external force continues to act, when the external force exceeds a certain limit, the wood, bolts and steel inserts at the connection point squeeze and deform each other, and the beam and column rotate relative to each other. At the same time, the damper begins to squeeze and deform due to the rotation of the beam and column to resist the rotation of the beam and column, thereby consuming the energy of the external force; when the wooden beam rotates upward relative to the wooden column, the diamond steel plate of the damper begins to stretch and deform, and the SMA rod in the oblique downward direction is subjected to tension and produces a certain degree of tensile deformation. After the external force is removed, the SMA rod recovers and drives the damper to return to its original shape. The damper drives the beam-column node to rotate, so that the wooden column and wooden beam return to their original position, and the residual deformation of the node is reduced; when the wooden beam rotates downward relative to the wooden column, the diamond steel plate of the damper begins to squeeze and deform, and the SMA rod in the oblique upward direction is subjected to tension and produces a certain degree of tensile deformation. After the external force is removed, the SMA rod recovers and drives the damper to return to its original shape. The damper drives the beam-column node to rotate, so that the wooden column and wooden beam return to their original position, and the residual deformation of the node is reduced. Not only can the damper and beam-column automatically return to their initial positions after the beam-column joint is deformed by external force, reducing residual deformation, improving the ductility and fatigue resistance of the structure, and ensuring the stability of the structure, but it can also effectively consume earthquake energy under the action of an earthquake, improve the toughness of the beam-column joint of the wooden structure, and enable it to quickly recover its function after the earthquake. At the same time, the node can be modified without changing the connection method of the beam-column node of the wooden structure. It is suitable for new environmentally friendly wooden structure buildings, so that the beam-column node has sufficient energy consumption and earthquake resistance under long-term use or earthquake action, and the deformation generated can be reversed. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall installation structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the utility model square steel pipe and its structure;

[0014] Figure 3 This is a schematic diagram of the side plate and top plate structure of the utility model;

[0015] Figure 4 It is a schematic diagram of the overall front structure of the utility model.

[0016] In the figure: 1. Side panel; 2. Clamp; 3. Square steel pipe; 4. High-strength bolt; 5. SMA rod; 6. Diamond steel plate; 7. Top plate. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] The utility model provides a technical solution, a damper device for wooden structure building, comprising: Figure 1 , a diamond-shaped steel plate 6, and an SMA rod 5 arranged in the inner cavity of the diamond-shaped steel plate 6, and the top and bottom of the diamond-shaped steel plate 6 are connected to a square steel tube 3;

[0019] See also Figure 4, high-strength bolts 4 are arranged between the diamond steel plate 6 and the square steel tube 3, and the ends of the square steel tube 3 are respectively connected to the side plates 1 and the top plate 7. By opening a notch on the side of the connection part between the square steel tube 3 and the diamond steel plate 6, it can be used to clamp the angle of the diamond steel plate 6. Since the damper is composed of the diamond steel plate 6 and the square steel tube 3, when the beam and column are subjected to external force, the wooden column and wooden beam will have a tendency to rotate relative to each other. At this time, the wooden structure bolt steel insert plate beam-column node will be squeezed due to the external force. At the same time, the external force on the structure is borne by the node and the damper at the same time. At this stage, the wooden column and wooden beam do not rotate relative to each other. Compared with the original connection method, the reinforcement method provided by this device can improve the initial stiffness of the node. As the external force continues to act, when the external force exceeds a certain limit, the wood, bolts and steel inserts at the connection point squeeze and deform each other, and the beam and column rotate relative to each other. At the same time, the damper begins to squeeze and deform due to the rotation of the beam and column to resist the rotation of the beam and column, consuming the energy of the external force; when the wooden beam rotates upward relative to the wooden column, the diamond steel plate 6 of the damper begins to stretch and deform, and the SMA rod 5 in the oblique downward direction is subjected to tension and produces a certain degree of stretching deformation. After the external force is removed, the SMA rod 5 recovers and drives the damper to return to its original shape. The damper drives the beam-column node to rotate so that the wooden column and wooden beam return to their original position, and the residual deformation of the node is reduced; when the wooden beam rotates downward relative to the wooden column, the diamond steel plate 6 of the damper begins to squeeze and deform, and the SMA rod 5 in the oblique upward direction is subjected to tension and produces a certain degree of stretching deformation. After the external force is removed, the SMA rod 5 recovers and drives the damper to return to its original shape. The damper drives the beam-column node to rotate so that the wooden column and wooden beam return to their original position, and the residual deformation of the node is reduced. Not only can the damper and beam-column automatically return to their initial positions after the beam-column joint is deformed by external force, reducing residual deformation, improving the ductility and fatigue resistance of the structure, and ensuring the stability of the structure, but it can also effectively consume earthquake energy under the action of an earthquake, improve the toughness of the beam-column joint of the wooden structure, and enable it to quickly recover its function after the earthquake. At the same time, the node can be modified without changing the connection method of the beam-column node of the wooden structure. It is suitable for new environmentally friendly wooden structure buildings, so that the beam-column node has sufficient energy consumption and earthquake resistance under long-term use or earthquake action, and the deformation generated can be reversed.

[0020] See also Figure 3 Clamping plates 2 are installed on both sides of the center of the inner side of the side panel 1 and the top panel 7, and the side panel 1 and the top panel 7 are rotatably connected between the clamping plates 2 and the square steel tube 3. This allows the side panel 1 and the top panel 7 to be adjusted in pitch angle at the end of the square steel tube 3, and allows the side panel 1 and the top panel 7 to be connected to the wooden structure.

[0021] See also Figure 2 The outer surface of the diamond steel plate 6 is evenly provided with connecting holes around it, and the SMA rod 5 is connected to the diamond steel plate 6 through the connecting holes. The diamond steel plate 6 and the SMA rod 5 are connected by plugging through the connecting holes.

[0022] This solution creates a notch on the side of the connection between the square steel tube 3 and the diamond-shaped steel plate 6, which can be used to clamp the angle of the diamond-shaped steel plate 6. Since the damper is composed of the diamond-shaped steel plate 6 and the square steel tube 3, when the beam and column are subjected to external forces, the wooden column and beam will tend to rotate relative to each other. At this time, the wooden structure bolt steel plate beam-column node will be squeezed by the external force. At the same time, the external force on the structure is borne by both the node and the damper. At this stage, the wooden column and beam do not rotate relative to each other. Compared with the original connection method, the reinforcement method provided by this device can improve the initial stiffness of the node. As the external force continues to act, when the external force exceeds a certain limit, the wood, bolts and steel inserts at the connection point squeeze and deform each other, and the beam and column rotate relative to each other. At the same time, the damper begins to squeeze and deform due to the rotation of the beam and column to resist the rotation of the beam and column, consuming the energy of the external force; when the wooden beam rotates upward relative to the wooden column, the diamond steel plate 6 of the damper begins to stretch and deform, and the SMA rod 5 in the oblique downward direction is subjected to tension and produces a certain degree of stretching deformation. After the external force is removed, the SMA rod 5 recovers and drives the damper to return to its original shape. The damper drives the beam-column node to rotate so that the wooden column and wooden beam return to their original position, and the residual deformation of the node is reduced; when the wooden beam rotates downward relative to the wooden column, the diamond steel plate 6 of the damper begins to squeeze and deform, and the SMA rod 5 in the oblique upward direction is subjected to tension and produces a certain degree of stretching deformation. After the external force is removed, the SMA rod 5 recovers and drives the damper to return to its original shape. The damper drives the beam-column node to rotate so that the wooden column and wooden beam return to their original position, and the residual deformation of the node is reduced. The side panels 1 and the top panel 7 can be adjusted in pitch angle at the ends of the square steel tubes 3 , and the side panels 1 and the top panel 7 can be connected to the wooden structure.

[0023] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A damper device for a wooden structure building, characterized in that: include: A diamond-shaped steel plate (6), and an SMA rod (5) disposed in the inner cavity of the diamond-shaped steel plate (6), wherein the top and bottom of the diamond-shaped steel plate (6) are both connected to a square steel tube (3); The high-strength bolts (4) are arranged between the diamond-shaped steel plate (6) and the square steel pipe (3), and the ends of the square steel pipe (3) are respectively connected to the side plate (1) and the top plate (7).

2. A damper device for a wooden structure building according to claim 1, characterized in that: Clamps (2) are installed on both sides of the center position of the inner side surfaces of the side panels (1) and the top panel (7), and the side panels (1) and the top panel (7) are rotatably connected through the clamps (2) and the square steel pipes (3).

3. A damper device for a wooden structure building according to claim 1, characterized in that: Connection holes are evenly formed around the outer surface of the diamond-shaped steel plate (6), and the SMA rod (5) is connected to the diamond-shaped steel plate (6) through the connection holes.

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