Wood beam frame node reinforcing device for ancient building

Abstract

The utility model provides a reinforcing device for a wood beam frame node of an ancient building, belongs to the field of reinforcing of the ancient building, and is used for solving the problems that a tenon-and-mortise node of a wood structure is prone to tenon pulling, and a wood component is damaged and secondarily damaged in a traditional reinforcing mode. The device comprises a hoop assembly, adjustable profile steel, an adjustable wooden column limiting telescopic rod piece and a spring damper assembly, the spring damper and the limiting rod piece are additionally arranged in the hoop assembly, the adjustable profile steel is inserted into the outer side of the hoop assembly in a nested mode, the adjustable profile steel is arranged on a beam column in a sleeving mode, the hoop assembly is arranged on the wooden column, and the limiting telescopic rod piece is arranged on the wooden column. Through nested connection of the profile steel and the hoop, excessive rotation of the joint can be effectively limited, and repeated drawing and damage to the beam frame are avoided; meanwhile, under the action of strong shock, the energy consumption effect can be achieved through repeated drawing of the tenon, however, if the tenon pulling amount is too large, the bearing capacity of the joint can be reduced, and the phenomenon of tenon disengaging can be avoided, the joint is guaranteed to enter the elastic-plastic large deformation stage through combined limiting of the adjustable profile steel and the hoop assembly, tenon disengaging damage is avoided, and the joint can continue to work stably.

Description

Technical Field

[0001] The utility model relates to the field of ancient building reinforcement, in particular to the reinforcement of wooden beam nodes of ancient buildings. Background Art

[0002] After thousands of years of evolution, the wooden structure of ancient buildings, as one of the carriers of Chinese history and culture, has extremely high construction art value. The mortise and tenon joint is an important connection point of the wooden structure, with typical semi-rigid connection characteristics, which dissipates seismic energy through friction and slip between the joints. However, due to environmental influences, human reconstruction factors, and years of disrepair, its structural mechanical properties have declined. The damage of the mortise and tenon joint is mainly manifested in the pulling out of the tenon, the crushing of the wood, and the cracking of the mortise. Therefore, a reinforcement device that improves the mechanical properties of the mortise and tenon joint is of great significance to the safety of the wooden structure of ancient buildings.

[0003] The patent with application number 202321401778.4 discloses a "reinforcement device for damaged mortise and tenon joints of wooden structures, including replacement parts and reinforcement components; the reinforcement components are all mounted on the replacement parts, and by mounting the reinforcement sleeves on the replacement parts and beams, the node strength can be improved." This technology connects the reinforcement components with the replacement parts through bolts, thereby improving the node strength and limiting the rotation of the beam-column nodes; however, this technology inserts its own wooden components, which is not in line with the principles of cultural relics protection and repair, and the reinforcement device is in direct contact with the wooden components, which can easily cause secondary damage, and the energy consumption capacity of the nodes is limited.

[0004] The patent with application number 202223234273.1 discloses a "limiting reinforcement structure for mortise and tenon joints of wooden structures, including wooden beams, angle steels, and wooden piles. The wooden piles and wooden beams are connected by mortise and tenon joints. Two angle steels are provided, and the two angle steels are symmetrically arranged on the outside of the wooden beams. The angle steels and wooden piles are provided with limiting reinforcements, and they are fixed to the front surface of the wooden columns, and symmetrically distributed fixing grooves are opened on the sides." This technology limits the beams by limiting reinforcements, and the reinforcements are fastened to the surface of the wooden columns, so that they play a limiting role when the beams rotate. However, the limiting effect of this technology is limited. When the node rotates greatly, its anchoring on the surface of the wooden column is prone to wood fiber crushing, which causes the wooden column to be damaged and loses the limiting effect.

[0005] At present, reinforcement devices are often installed at the nodes of wooden beams to avoid such problems. However, the existing reinforcement devices have the following defects:

[0006] The existing reinforcement devices have complex structures and low adaptability, which makes it inconvenient for workers to disassemble and install them, and it is impossible to perform secondary reinforcement. The components have low adaptability, and common sizes in the same building cannot be adjusted for matching installation.

[0007] Existing reinforcement devices often require drilling holes in wooden components and penetrating iron parts, which not only violates the principles of reinforcement and repair of ancient buildings, but also causes secondary damage to the components, easily causing irreversible damage.

[0008] The existing reinforcement device can only limit the rotation of the node, but cannot improve its energy consumption capacity and achieve the resetting effect. Utility Model Content

[0009] In view of the above problems, the purpose of the utility model is to provide a device for reinforcing the nodes of wooden beams of ancient buildings, which utilizes steel sections, hoops, steel plates and spring dampers to minimize the intervention in the nodes of wooden beams, thereby playing the role of corner limiting and self-resetting, avoiding compression deformation at the node mortise and tenon, improving the node stiffness and enhancing the node energy consumption capacity.

[0010] To achieve the above-mentioned purpose, the technical solution adopted by the utility model to solve its technical problem is: to provide a node reinforcement device for wooden beam frames of ancient buildings, including a sleeve hoop assembly, an adjustable steel section, an adjustable wooden column limiting telescopic rod, and a spring damper assembly on the wooden column, the spring damper and the limiting rod are both added to the sleeve hoop assembly, and the adjustable steel section is nested and socketed on the outside of the sleeve hoop assembly.

[0011] Preferably, the adjustable steel section contains a detachable L-shaped steel and two detachable steel plates. Holes are provided on both sides of the detachable L-shaped steel and the outer bottom of the steel plate to facilitate fastening with bolts. Rubber pads are attached to the inner side of the steel plate and the upper surface of the steel section to prevent direct contact between iron parts and wooden components, thereby preventing secondary damage. When installed on beams of different sizes, it is only necessary to adjust the upper steel plate of the steel section to fit the side surface of the beam and then fasten it. The grooves provided on both sides of the steel section conform to the dimensions of common beam components, thereby improving its adaptability.

[0012] Preferably, the wooden column limiting telescopic rod is arranged on the inner side of the sleeve hoop assembly, and the rod is divided into a spring telescopic rod and a panel. A rubber pad is pasted on the surface of the panel, and the rod end is spherical and nested in the sleeve hole on the back of the panel, which can be twisted to a certain extent. A spring is installed in the rod to facilitate a better fit to the wooden column. There are a total of six groups of limiting telescopic rods inside, all of which are welded to the inner side of the sleeve hoop, which is suitable for common wooden column sizes.

[0013] Preferably, the spring damper assembly is arranged outside the sleeve hoop assembly and in the nesting hole. Four spring dampers are provided, and a rectangular steel plate is arranged above the spring damper and a rubber cushion layer is pasted on the surface of the spring damper.

[0014] Preferably, the sleeve assembly is composed of two symmetrical components, and nesting holes are welded on the vertical surface between the sleeve and the beam to facilitate the combination of adjustable steel sections, and holes are opened on the outer side of the nesting position to facilitate the assembly of the sleeve.

[0015] The utility model has the following beneficial effects:

[0016] (1) By adopting a reinforcement device consisting of a sleeve hoop assembly and an adjustable steel section, the bearing capacity and stiffness of the wooden beam frame node can be effectively improved; when the node is subjected to force, the mortise and tenon joint rotates, at which time the adjustable steel section fits the lower surface of the beam to play a limiting role, and the spring damper added at the connection between the adjustable steel section and the sleeve hoop plays an effective resetting role on the rotation of the mortise and tenon joint.

[0017] (2) The nested connection of adjustable steel and hoop can effectively limit the excessive rotation of the node, avoiding repeated pulling and damage to the beam frame. At the same time, under the action of strong earthquakes, repeated pulling of the tenon can dissipate energy. However, if the pulling amount is too large, it will reduce the bearing capacity of the node and cause the tenon to come out of place. The combination of steel and hoop components is limited to ensure that the node enters the stage of large elastic-plastic deformation, which will not cause tenon to come out of place and can continue to work stably.

[0018] (3) The reinforcement device can adapt to the sizes of common wooden components through the limited telescopic rod and adjustable steel added in the sleeve hoop assembly. The internal components of the device can be replaced for different forms such as beams and purlins, which is convenient for construction.

[0019] (4) The reinforcement device is light, easy and quick to disassemble and assemble, and its quality is easy to ensure, which meets the principles of reinforcement and repair of wooden structures of ancient buildings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the reinforcement device

[0021] Figure 2 This is a three-dimensional diagram after strengthening the wooden beam frame nodes;

[0022] Figure 3 This is the structural diagram of the limited telescopic rod of the wooden column;

[0023] Figure 4 Construct a diagram for the spring-damper assembly;

[0024] Figure 5 A diagram of the construction of the ferrule assembly;

[0025] Figure 6 It is a schematic diagram of the combination of the hoop assembly, the wooden column limit telescopic rod, and the spring damper;

[0026] Figure 7 It is a schematic diagram of an adjustable steel section combination;

[0027] In the figure: 101-wooden column, 102-wooden beam, 201-telescopic rod, 202-wooden column limiting telescopic rod panel, 203-wooden column limiting telescopic rod, 301-spring damper panel, 302-spring damper; 303-spring damper assembly, 401-hoop assembly 1, 402-hoop assembly 2, 501-bolt fastener, 601-detachable steel plate 1, 602 detachable steel plate 2, 603 detachable L-shaped steel. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] Example reference Figure 1-Figure 7 The utility model provides a device for reinforcing the nodes of wooden beams of ancient buildings, including: 101-wooden column; 102-wooden beam; 201-telescopic rod; 202-wooden column limit telescopic rod panel; 203-wooden column limit telescopic rod; 301-spring damper panel; 302-spring damper; 303-spring damper assembly; 401-hoop assembly 1; 402-hoop assembly 2; 501-bolt fastener; 601-detachable steel plate 1; 602 detachable steel plate 2; 603 detachable L-shaped steel.

[0030] The device comprises a sleeve hoop assembly, an adjustable steel section, an adjustable wooden column limit telescopic rod, and a spring damper assembly, wherein the spring damper and the limit rod are both added inside the sleeve hoop assembly, and the adjustable steel section is inserted and socketed outside the sleeve hoop assembly through nesting.

[0031] The 203 wooden column limited telescopic rod is composed of the 201 telescopic rod and the 202 wooden column limited telescopic rod panel, and the 201 telescopic rod and the 202 wooden column limited telescopic rod panel are connected by a snap-on connection to achieve the purpose of rotation and twisting. There are 6 groups in total, which are welded to the inner side of the 401 hoop assembly 1 and the 402 hoop assembly 2 respectively, with an interval angle of 30°.

[0032] Square grooves are respectively provided on the ear hoops on both sides of the 401 hoop assembly 1 and the 402 hoop assembly 2 for socket connection with the 603 detachable L-shaped steel, and reserved bolt holes are respectively provided on the ear hoops on both sides. The 401 hoop assembly 1 and the 402 hoop assembly 2 are pre-tightened and connected to the wooden column by high-strength bolts of corresponding sizes of the reserved bolt holes.

[0033] The 401 sleeve assembly 1 and the 402 sleeve assembly 2 are pre-tightened and connected to the wooden column through the reserved bolt holes using high-strength bolts of corresponding sizes.

[0034] The adjustable steel section is composed of 603 detachable L-shaped steel, 601 detachable steel plate 1, and 602 detachable steel plate 2. Square grooves are symmetrically provided on both sides of the upper surface of the 603 detachable L-shaped steel. Reserved bolt holes are provided to align with the 601 detachable steel plate 1 and 602 detachable steel plate 2. The reserved bolt holes are used for pre-tightening connection through high-strength bolts of corresponding sizes. The width of the 603 detachable L-shaped steel should conform to the thickness of common beam components, so that the 601 detachable steel plate 1 and 602 detachable steel plate 2 can fit the surfaces on both sides of the beam.

[0035] The 603 removable L-shaped steel needs to be slotted on both sides of the place where it fits the wood beam. The width of the steel should conform to the common wood beam width and shall not be less than 50mm. The thickness of the steel is 10mm. Bolt holes are opened on both sides of the steel. Figure 7 .

[0036] The detachable steel plates 601 and 602 are provided with bolt holes at the connection places with the detachable L-shaped steel on the lower sides thereof, and are connected with the shaped steel by means of 501 bolt fasteners.

[0037] The 303 spring damper assembly is composed of a 301 spring damper panel and a 302 spring damper connected by welding. There are 4 groups of 302 spring dampers, and the tops of each two groups are welded to the same 301 spring damper panel. They are respectively arranged in the square grooves of the ear hoops on both sides of the 401 hoop assembly 1 and the 402 hoop assembly 2, and are used for socket connection with the detachable L-shaped steel (603). The ear hoops on both sides are respectively provided with reserved bolt holes.

[0038] The 203 wood column limit telescopic rod is connected by welding the 201 telescopic rod and the 202 wood column limit telescopic rod panel.

[0039] See Figure 5 The hoop assemblies 401 and 402 have the same detailed structure, bolt holes are provided on the hoop ears on the left and right sides, nesting grooves are provided on the left and right sides of the hoop, and the above-mentioned 303 spring damper assembly is welded and connected to the bottom of the nesting groove. There are 3 groups of 203 wooden column limiting telescopic rods welded on one side of the hoop.

[0040] See Figure 1 The sleeve hoop assembly is connected by bolt fasteners, and after the adjustable steel section is assembled, it is nested and connected therewith.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit the protection scope of the utility model. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A device for reinforcing the nodes of wooden beams of ancient buildings, characterized in that The invention comprises a wooden column (101), a wooden beam (102), a telescopic rod (201), a wooden column position-limiting telescopic rod panel (202), a wooden column position-limiting telescopic rod (203), a spring damper panel (301), a spring damper (302), a spring damper assembly (303), a sleeve hoop assembly 1 (401), a sleeve hoop assembly 2 (402), a bolt fastener (501) and an adjustable steel section. The wooden column position-limiting telescopic rod (203) is composed of a telescopic rod (201) and a wooden column position-limiting telescopic rod panel (202), a total of 6 groups, which are respectively arranged in the sleeve hoop assembly 1 (401) and the sleeve hoop assembly 2 (402). On the side, the hoop assembly 1 (401) and the hoop assembly 2 (402) are pre-tightened and connected to the wooden column through high-strength bolts of corresponding sizes of reserved bolt holes; the spring damper assembly (303) is composed of a spring damper panel (301) and a spring damper (302), which are respectively arranged in the socket grooves on both sides of the hoop assembly 1 (401) and the hoop assembly 2 (402); the adjustable steel is composed of a detachable steel plate 1 (601), a detachable steel plate 2 (602), and a detachable L-shaped steel (603), which are pre-tightened and connected through high-strength bolts of corresponding sizes of reserved bolt holes, and are arranged at the wooden beam and socketed in the groove of the hoop assembly.

2. The device for reinforcing the nodes of wooden beams of ancient buildings according to claim 1 is characterized in that The wooden column limit telescopic rod (203) is composed of a telescopic rod (201) and a wooden column limit telescopic rod panel (202). The telescopic rod (201) and the wooden column limit telescopic rod panel (202) are connected by snap-fitting to achieve the purpose of rotation and twisting. There are 6 groups in total, which are respectively welded to the inner side of the hoop assembly 1 (401) and the hoop assembly 2 (402), and the interval angle is 30 degrees.

3. The device for reinforcing the nodes of wooden beams of ancient buildings according to claim 1 is characterized in that Square grooves are respectively provided on the ear hoops on both sides of the hoop assembly 1 (401) and the hoop assembly 2 (402) for socket connection with the detachable L-shaped steel (603), and reserved bolt holes are respectively provided on the ear hoops on both sides. The hoop assembly 1 (401) and the hoop assembly 2 (402) are pre-tightened and connected by high-strength bolts of corresponding sizes through the reserved bolt holes.

4. The device for reinforcing the nodes of wooden beams of ancient buildings according to claim 1 is characterized in that The spring damper assembly (303) is assembled by welding a spring damper panel (301) and a spring damper (302). There are four groups of spring dampers (302). The top ends of each two groups are welded to the same spring damper panel (301) and are respectively arranged in the square grooves of the ear hoops on both sides of the hoop assembly 1 (401) and the hoop assembly 2 (402).

5. The device for reinforcing the nodes of wooden beams of ancient buildings according to claim 1 is characterized in that The removable steel plate 1 (601), the removable steel plate 2 (602), and the removable L-shaped steel (603) form an adjustable steel section. Square grooves are symmetrically provided on both sides of the upper surface of the removable L-shaped steel (603). Reserved bolt holes are provided in alignment with the removable steel plate 1 (601) and the removable steel plate 2 (602). The reserved bolt holes are used for pre-tightening connection through high-strength bolts of corresponding sizes. The width of the removable L-shaped steel (603) should conform to the thickness of common beam components, so that the removable steel plate 1 (601) and the removable steel plate 2 (602) can fit the surfaces on both sides of the beam.

6. The device for reinforcing the nodes of wooden beams of ancient buildings according to claim 1 is characterized in that Rubber pads should be installed where components are in close contact with wooden components to prevent secondary damage to the wooden components.

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