Energy dissipation plate device for strengthening wood structure nodes

Abstract

An embodiment of the present invention provides an energy-absorbing plate device for reinforcing a wood structure node, comprising: a hoop body, two hoop bodies are both mounted on a column, and are respectively located at the upper and lower sides of the node; a fixing plate, the fixing plate is respectively connected to the two sides of each hoop body, and is arranged on the upper and lower surfaces of a beam riveted to the column, and is connected to the beam; wherein the edge of each fixing plate is processed with a groove along its width direction to form a weak position. The energy-absorbing plate device for reinforcing a wood structure node provided by an embodiment of the present invention cleverly adopts a method of weakening the flange of the fixing plate, actively generates a weak position on the fixing plate, so that the plastic hinge is transferred from the beam-column connection node to the weakened part of the flange of the fixing plate, and the fixing plate is destroyed before the wood, thereby enhancing the energy-absorbing capacity of the entire device. During construction, only the fixing plate needs to be replaced, which reduces the construction difficulty of the wood structure node reinforcement.

Description

Technical Field

[0001] The invention relates to the technical field of wood structure node reinforcement, and in particular to an energy dissipation plate device for reinforcing wood structure nodes. Background Art

[0002] Wood structure is a common building structure, which is widely used in my country and has a long history. Nowadays, wood structure is mainly used in some low-story rural houses. It has no professional earthquake-resistant design and is easily damaged by insects and corrosion. As a result, many wood structures are seriously damaged, which greatly affects the durability of the later period. Therefore, they are in urgent need of repair and reinforcement.

[0003] In the post-earthquake performance survey of some ancient wooden structures, it was found that structural damage was mainly concentrated in some node areas, so the reinforcement of wooden structures is mainly reflected in strengthening the node performance. The node area is subjected to complex forces, and it is difficult to carry out reinforcement construction inside the node, which has become a prominent problem in the field of wooden structure node reinforcement.

[0004] The existing methods for reinforcing wood structure nodes mainly include nail reinforcement, steel pin reinforcement, beam bottom support wood reinforcement and fiber cloth reinforcement. The above reinforcement methods can improve the stiffness of wood structure nodes and enhance the performance of wood structure nodes to a certain extent, but the nail reinforcement, steel pin reinforcement and beam bottom support wood reinforcement methods cause serious damage to the wood structure itself, reduce the strength of the wood structure, and accelerate the destruction of components; the fiber cloth reinforcement method mainly uses structural adhesive, but the construction is difficult at some complex beam-column nodes and the labor cost is high. Summary of the invention

[0005] The embodiment of the present invention provides an energy dissipation plate device for reinforcing a wood structure node, so as to solve the defects of great construction difficulty and low load resistance capacity existing in the wood structure node reinforcement parts in the prior art.

[0006] An embodiment of the present invention provides an energy-absorbing plate device for reinforcing a wooden structure node, comprising: a hoop body, two of which are sleeved on a column and respectively located on the upper and lower sides of the node; a fixing plate, which is respectively connected to the two sides of each of the hoop bodies and is arranged on the upper and lower surfaces of a beam riveted to the column and connected to the beam; wherein the edge of each of the fixing plates is processed with a groove along its width direction to form a weak point.

[0007] According to an energy-absorbing plate device for reinforcing a wooden structure node according to an embodiment of the present invention, the hoop body comprises: two main body parts arranged opposite to each other, and connecting parts respectively connected to both ends of the main body parts, a first connecting hole is formed on the connecting part, so as to pass a first bolt to connect the two connecting parts arranged opposite to each other, so as to sleeve the hoop body on the column; wherein the fixing plate is connected to both sides of the main body parts.

[0008] According to the energy dissipation panel device for reinforcing a timber structure node according to one embodiment of the present invention, the shape of the body portion matches the shape of the column.

[0009] According to an energy dissipation plate device for reinforcing a wood structure node according to an embodiment of the present invention, the shape of an end surface of one end of each fixed plate matches the shape of the main body.

[0010] According to an energy dissipation plate device for reinforcing a wood structure node according to an embodiment of the present invention, one end of each of the fixing plates is arc-shaped.

[0011] According to an energy dissipation plate device for reinforcing a wood structure node according to an embodiment of the present invention, each of the connecting parts is in a trapezoidal structure, and the connecting part is arranged above the fixing plate.

[0012] According to an embodiment of the present invention, the energy-absorbing plate device for reinforcing the nodes of wooden structures further includes a protective cloth, wherein a plurality of the protective cloths are symmetrically arranged on both sides of the column and are respectively wrapped around the fixing plate and the beam to fix the fixing plate and the beam.

[0013] According to the energy dissipation panel device for reinforcing wood structure nodes according to one embodiment of the present invention, the protective cloth is a fiber reinforced resin-based composite material protective cloth.

[0014] According to the energy dissipation plate device for reinforcing wood structure nodes according to one embodiment of the present invention, the protective cloth is adhered to the fixed plate and the beam by using epoxy resin glue.

[0015] According to an energy dissipation plate device for reinforcing a wood structure node according to an embodiment of the present invention, a second connection hole is formed on the fixing plate, through which a second bolt passes to fix the fixing plate to the beam.

[0016] The energy-absorbing plate device for reinforcing the wood structure nodes provided by the embodiment of the present invention cleverly adopts the method of weakening the flange of the fixed plate, actively creates a weak position on the fixed plate, so that the plastic hinge is transferred from the beam-column connection node to the weakened position of the flange of the fixed plate, and the fixed plate is destroyed before the wood, thereby enhancing the energy-absorbing capacity of the entire device. At the same time, the fixed plate can shorten the clear span of the beam to enhance the load resistance of the beam. During construction, only the fixed plate needs to be replaced, which reduces the construction difficulty of the wood structure node reinforcement. At the same time, the setting of the fixed plate can shorten the clear span of the beam and enhance the load resistance of the beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced one by one below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of an energy dissipation plate device for reinforcing a wood structure node provided by an embodiment of the present invention;

[0019] Figure 2 yes Figure 1 A front view of an energy dissipation plate device for reinforcing a timber structure node is shown;

[0020] Figure 3 yes Figure 1 A side view of an energy dissipation plate device for reinforcing a timber structure node is shown;

[0021] Figure 4 yes Figure 1 A top view of an energy dissipation plate device for reinforcing a timber structure node is shown;

[0022] Figure 5 yes Figure 1 A schematic structural diagram of the hoop body shown;

[0023] Figure 6 yes Figure 1 A schematic diagram of the structure of the fixed plate shown;

[0024] Figure 7 yes Figure 1 A schematic diagram of the protective cloth is shown.

[0025] Reference numerals:

[0026] 1: hoop body; 2: fixing plate; 3: protective cloth; 4: first bolt; 5: second bolt; 11: main body; 12: connecting part. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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 creative work are within the scope of protection of the present invention.

[0028] Combine the following Figures 1 to 7 An energy dissipation panel device for reinforcing a wood structure node according to an embodiment of the present invention is described.

[0029] like Figures 1 to 4 As shown, in one embodiment of the present invention, an energy-absorbing plate device for reinforcing a wood structure node includes: a hoop body 1 and a fixing plate 2. Specifically, after the beam and column are riveted, the two hoop bodies 1 are respectively mounted on the column, and are respectively located on the upper and lower sides of the node, flush with the end of the node. The fixing plate 2 is connected to both sides of the hoop body 1, and is respectively arranged on the upper and lower surfaces of the beam, and is connected to the beam. Further, as shown in 6, a groove is formed in the width direction of each fixing plate 2 to form a weak position. Specifically, the groove is located in the middle of the fixing plate 2, so that its width is narrowed, thereby forming a weak position, so that the plastic hinge is transferred from the beam-column connection node to the weakened flange of the fixing plate 2, and the fixing plate 2 is destroyed before the wood, thereby enhancing the energy absorption capacity of the entire device.

[0030] Further, in one embodiment of the present invention, the hoop body 1 can be a hoop body formed by connecting two half hoops together, or a hoop body with an opening, which is sleeved on the column and then connected together for fixing. Optionally, the hoop body 1 and the fixing plate 2 are both made of Q345 hot-rolled seamless steel.

[0031] The energy-absorbing plate device for reinforcing the wood structure nodes provided by the embodiment of the present invention cleverly adopts the method of weakening the flange of the fixed plate, actively creates a weak position on the fixed plate, so that the plastic hinge is transferred from the beam-column connection node to the weakened position of the flange of the fixed plate, and the fixed plate is destroyed before the wood, thereby enhancing the energy-absorbing capacity of the entire device. At the same time, the fixed plate can shorten the clear span of the beam to enhance the load resistance of the beam. During construction, only the fixed plate needs to be replaced, which reduces the construction difficulty of the wood structure node reinforcement. At the same time, the setting of the fixed plate can shorten the clear span of the beam and enhance the load resistance of the beam.

[0032] like Figure 5 As shown, in one embodiment of the present invention, the hoop body 1 includes a main body 11 and two connecting parts 12. Specifically, the two connecting parts 12 are respectively welded on both sides of the main body 11, and a first connecting hole is formed on each connecting part 12. The two main bodies 11 are arranged opposite to each other and clamped on the outside of the column. The first bolt 4 passes through the first connecting holes on the two connecting parts 12 arranged opposite to each other to connect the two main bodies 11 together, and then the column is sleeved in the main body 11.

[0033] Further, in one embodiment of the present invention, optionally, the first bolt 4 is a stud bolt, and a S8.8 grade high-strength bolt is used.

[0034] Further, in one embodiment of the present invention, the shape of the main body 11 matches the shape of the column, and the end face shape of one end of the fixed plate 2 matches the shape of the main body 11. Specifically, when the column is a circular column, the main body 11 is a semicircular hoop, and an ear plate is welded at each end of the semicircular hoop as a connecting portion 12. The two main bodies 11 surround the column inside, and the first bolt 4 connects the two semicircular hoops into a whole through the hole on the ear plate. When the column is square, the main body 11 is square, and the ear plates are welded at both ends of the square. The column is surrounded in the main body 11 by connecting the ear plates.

[0035] Furthermore, if Figure 6 As shown, when the main body 11 is a semicircular hoop, one end face of the fixing plate 2 is an arc shape, and can fit with the main body 11 when welded with the main body 11. In the actual processing process, the fixing plate 2 can be processed first, and then the arc shape can be cut and polished at its end, and then the fixing plate 2 and the main body 11 are welded.

[0036] Furthermore, the connection part 12 is a trapezoidal structure, and the interconnected connection parts 12 are all arranged above the fixed plate 2, that is, the connection part 12 is arranged at the intersection of the beam and the column, and plays the role of the beam support, which can shorten the clear span of the beam and thereby enhance the load resistance of the beam and the shear resistance of the intersection of the beam and the column by increasing the node domain stiffness, and at the same time prevent the angle between the beam and the column from tilting.

[0037] like Figure 1 and Figure 7 As shown, in one embodiment of the present invention, the energy-absorbing plate device for reinforcing the nodes of the wooden structure also includes a protective cloth 3. A plurality of protective cloths 3 are symmetrically arranged on both sides of the column, and are respectively wrapped around the fixed plate 2 and the beam to fix the fixed plate 2 and the beam. Specifically, the protective cloth 3 is a fiber-reinforced resin-based composite material protective cloth, which is adhered to the fixed plate 2 and the beam using epoxy resin glue, and is wrapped around to fix the fixed plate 2 and the beam. Further, in one embodiment of the present invention, optionally, two protective cloths 3 are respectively arranged on each side of the column to enhance the geometric stability of the overall device, improve the bearing capacity and deformation capacity of the node, and improve the seismic resistance of the reinforcement.

[0038] The energy dissipation plate device for reinforcing the nodes of a wood structure provided by the embodiment of the present invention uses a protective cloth to fix the plates and beams, which causes less damage to the node area and can better maintain the performance of the wood.

[0039] In one embodiment of the present invention, a second connection hole is formed on the fixing plate 2, and the second bolt 5 passes through the second connection hole to fix the fixing plate 2 to the beam. Further, optionally, the second bolt 5 is a S8.8 grade high-strength stud bolt.

[0040] The energy-absorbing plate device for reinforcing the nodes of wooden structures provided in the embodiment of the present invention has independent components, which can be customized and constructed separately without affecting each other, thus eliminating the influence caused by the complicated reinforcement process, and has a high degree of assembly, simple assembly, fast construction speed and saves labor costs, thus having good economic benefits.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An energy dissipation plate device for reinforcing a timber structure node, characterized in that: include: Hoop bodies, two of which are sleeved on the column and are respectively located at the upper and lower sides of the node; A fixing plate, which is respectively connected to both sides of each hoop body, and is disposed on the upper and lower surfaces of the beam riveted to the column, and is connected to the beam; Wherein, the edge of each of the fixing plates is processed with a groove along its width direction to form a weak point; The hoop body comprises: two main body parts arranged opposite to each other, and connecting parts respectively connected to the two ends of the main body parts, wherein the connecting parts are formed with a first connecting hole, so as to pass a first bolt through which the two connecting parts arranged opposite to each other are connected, so as to sleeve the hoop body on the column; wherein the fixing plate is connected to both sides of the main body parts, each of the connecting parts is in a trapezoidal structure, and the connecting part is arranged above the fixing plate; A plurality of protective cloths are symmetrically arranged on both sides of the column and are respectively wrapped around the fixing plate and the beam to fix the fixing plate and the beam.

2. The energy dissipation plate device for reinforcing a wood structure node according to claim 1, characterized in that: The shape of the body portion matches the shape of the post.

3. The energy dissipation plate device for reinforcing a wood structure node according to claim 2, characterized in that: The shape of the end surface of one end of each fixing plate matches the shape of the main body.

4. The energy dissipation plate device for reinforcing a wood structure node according to claim 3, characterized in that: One end of each of the fixing plates is arc-shaped.

5. The energy dissipation plate device for reinforcing a wood structure node according to claim 1, characterized in that: The protective cloth is a fiber-reinforced resin-based composite material protective cloth.

6. The energy dissipation plate device for reinforcing a wood structure node according to claim 5, characterized in that: The protective cloth is adhered to the fixed plate and the beam by using epoxy resin glue.

7. The energy dissipation plate device for reinforcing a wood structure node according to claim 1, characterized in that: A second connection hole is formed on the fixing plate to pass a second bolt through to fix the fixing plate to the beam.

Images