Wood structure self-resetting node device
By using steel strands and clamping components in the design of wooden structures, the problem of easy misalignment of wooden column joints under vibration is solved, which improves the stability of wooden columns and the service life of consumables, and enhances the seismic performance of wooden structures.
Patent Information
- Application Number
- CN202423240780.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2034-12-27
AI Technical Summary
Under earthquake conditions, the joints of existing wooden columns are prone to misalignment or deformation, leading to decreased joint stability and fatigue damage to energy-consuming components, which affects the service life of the wooden columns.
The design employs steel strands and clamping components. The friction between the clamping holes and the steel strands limits the movement of the steel strands. Combined with buffer sleeves and buffer rings, the displacement of the steel strands is restricted. The clamping components and double-ended bolts enhance the connection stability, enabling the wooden column to self-reset and resist earthquakes.
It improves the stability of wooden column joints and the service life of consumables, reduces the strength loss of stiffening ribs due to vibration, and enhances the seismic performance of wooden columns and the overall seismic resistance of the structure.
Smart Images
Figure CN223880549U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of self-resetting node devices for wooden structures, specifically, to a self-resetting node device for wooden structures. Background Technology
[0002] In recent years, timber-framed buildings have become increasingly popular worldwide due to their advantages such as flexible design, short construction period, and ease of maintenance. As timber-framed buildings are increasingly used in modern architecture, especially in earthquake-prone areas, the requirements for their seismic performance and safety are becoming increasingly stringent. However, the inherent strength of timber structures alone is insufficient to demonstrate their advantages in earthquake-prone regions, particularly in the application of high-rise timber-framed buildings, where challenges are particularly evident. Timber columns, as crucial vertical load-bearing and lateral stress-bearing components in timber structures, withstand significant lateral displacements under seismic loads and may experience residual deformation. Therefore, improving the seismic performance of timber columns, especially for high-rise timber-framed buildings, is a key focus of current timber structure research.
[0003] Currently, in the practical use of timber-framed buildings, when timber column joints are subjected to vibration, they mainly rely on lossy components (such as stiffening ribs and energy-dissipating members) connected around the joints to offset the forces generated by the vibration. However, this design approach has certain shortcomings. Although lossy components can absorb seismic energy to a certain extent and reduce the impact of vibration on the structure, due to the frequent action of vibration on the timber column joints, these components often suffer fatigue damage, leading to misalignment or deformation of the joint. This misalignment further affects the normal operation of the timber column, increases local stress in the structure, reduces the stability of the joint, and may even shorten the service life of the timber column joint. Utility Model Content
[0004] This invention proposes a self-resetting joint device for wooden structures, which improves the stability of wooden column joints and extends the service life of consumables around the joints.
[0005] The technical solution of this utility model is as follows:
[0006] A self-resetting joint device for wooden structures, including a base plate;
[0007] The base plate is detachably and fixedly connected between two stiffening ribs, and each stiffening rib is connected to the base plate with several anchor bolts;
[0008] Two main body plates are fixedly connected between the two stiffening ribs. Each main body plate has several locking holes, and each locking hole is fitted with a steel strand. An anchor is fixedly connected to both ends of each steel strand. The diameter of the locking hole is slightly larger than the outer diameter of the steel strand.
[0009] The clamping assembly is arranged in the main body plate to improve the resetting effect of the steel strand on the main body plate.
[0010] Further, the clamping assembly comprises a clamping plate, a plurality of clamping pieces are fixedly connected to the clamping plate, each clamping piece is fixedly connected with each steel strand, and two linkage plates are hingedly connected to the lower side of the clamping plate.
[0011] A plurality of first sleeves are hingedly connected between the two transmission plates, each first sleeve is coaxially arranged with each steel strand, a second sleeve is threadedly connected to the lower side of each first sleeve, a buffer seat is fixedly connected to the lower side of the second sleeve, and the buffer seat is fixedly connected to the main body plate.
[0012] Further, two receiving plates are fixedly connected to one side of each main body plate, and a double-end bolt is fixedly connected between two equal-height receiving plates.
[0013] Further, a plurality of buffer sleeves are fixedly connected to the upper side of each main body plate, each buffer sleeve is coaxially arranged with each steel strand, and the two ends of the buffer sleeve are respectively abutted with the upper end anchor of the steel strand and the upper side of the main body plate.
[0014] Further, a buffer ring is fixedly connected between the buffer seat and each steel strand.
[0015] Further, a limiting groove is formed in the lower side of the bottom plate, a clamping line is arranged in the limiting groove, and any one end of the clamping line is fixedly connected with the adjacent steel strand.
[0016] The beneficial effects of the utility model are as follows:
[0017] Through the abutting friction force between the clamping hole and the side edge of the steel strand, the steel strand can be limited, the steel strand can be prevented from deviating, the resetting and damping effects of the steel strand can be ensured, the clamping assembly is matched, the steel strand has a small stretching distance, the direct force of vibration on the wood column is offset, the strength loss of the stiffening ribs on both sides is reduced, the steel strand cannot be directly broken due to excessive traction force, the service life of the wood column is improved, the displacement distance of the steel strand is limited, the wood column can be prevented from deviating during vibration, the connection between the steel strand and the wood column is not loosened, and the stability of the wood column joint is improved. BRIEF DESCRIPTION OF DRAWINGS
[0018] The utility model will be further and specifically explained in connection with the drawings and embodiments.
[0019] Figure 1 The utility model is enlarged and schematized Figure 1 ;
[0020] Figure 2 For Figure 1 enlarged view of the middle A;
[0021] Figure 3 enlarged view of the utility model Figure 2 ;
[0022] Figure 4 enlarged view of the utility model Figure 3 ;
[0023] Figure 5 partial half-section enlarged view of the utility model.
[0024] In the figure: 11, bottom plate; 111, limiting groove; 12, stiffening rib; 13, anchor bolt; 14, main plate; 141, clamping hole; 142, stud; 141, clamping hole; 15, steel strand; 16, anchor device; 17, buffer sleeve; 18, clamping line; 21, clamping plate; 22, clamping piece; 23, linkage plate; 24, transmission plate; 25, first sleeve; 26, second sleeve; 27, buffer seat; 271, buffer ring; 31, receiving plate; 4, wooden column. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are involved in the protection scope of the utility model.
[0026] EMBODIMENT
[0027] As Figures 1-5 shown, the wood structure self-resetting node device is provided, which comprises a bottom plate 11;
[0028] The two stiffening ribs 12 are detachably fixedly connected to the bottom plate 11, and the anchor bolts 13 are connected between each stiffening rib 12 and the bottom plate 11. Since the stiffening rib 12 is a consumable material, in order to facilitate its disassembly and maintenance, the detachable mode of bolt and nut connection can be selected for its fixation.
[0029] The two main plates 14 are fixedly connected between the two stiffening ribs 12, and the two main plates 14 are detachably fixedly connected to the bottom plate 11. The clamping holes 141 are formed in the main plate 14, the steel strands 15 are clamped in the clamping holes 141, the anchor devices 16 are fixedly connected to the two ends of the steel strands 15, and the clamping hole 141 has a diameter slightly larger than the outer diameter of the steel strand 15.
[0030] The clamping assembly for improving the resetting effect of the steel strand 15 on the main plate 14 is connected in the main plate 14;
[0031] By the abutting friction force of the clamping hole 141 and the side edge of the steel strand 15, a certain limiting effect can be achieved on the steel strand 15 to prevent the steel strand 15 from deviating and ensure that the steel strand 15 can play a resetting and damping role. Then, the clamping assembly is matched to make the steel strand 15 have a small stretching distance, which is used to offset the direct force of the vibration on the wooden column 4, reduce the strength loss of the stiffening ribs 12 on both sides, prevent the steel strand 15 from being directly broken due to excessive traction force, improve the service life of the two, limit the displacement distance of the steel strand 15, prevent the wooden column 4 from deviating during the vibration process through its own traction strength, and prevent the connection between the steel strand 15 and the wooden column 4 from loosening, thereby improving the stability of the wooden column 4 node;
[0032] The wooden column 4 is preferably in the shape of an I-beam, which can better connect with each component. Through this shape, the connection area between the wooden column 4 and the components is improved, ensuring that it has sufficient strength. At the same time, through more connection areas, the force received by the wooden column 4 is transmitted to each component as much as possible, thereby ensuring its service life.
[0033] As shown in Figures 1-2 and Figure 5 , the clamping assembly includes a clamping plate 21, a plurality of clamping pieces 22 fixedly connected to the clamping plate 21, each clamping piece 22 fixedly connected to each steel strand 15, the lower side of the clamping plate 21 hingedly connected to two linkage plates 23, each transmission plate 24 connected to the lower end of each linkage plate 23, and each transmission plate 24 fixedly connected to the inner side wall of the main plate 14;
[0034] The clamping piece 22 is a standard part used with the steel strand 15 in the prior art, so it is not described in detail;
[0035] A plurality of first sleeves 25 are hingedly connected between the two transmission plates 24, each first sleeve 25 coaxially arranged with each steel strand 15, the lower side of each first sleeve 25 threadedly connected to each second sleeve 26, the lower side of the second sleeve 26 fixedly connected to the buffer seat 27, and the buffer seat 27 fixedly connected to the main plate 14;
[0036] When the wooden column 4 is subjected to vibration and migration, the force is transmitted to the bottom plate 11, thereby moving the bottom plate 11 and producing a pulling effect on the steel strand 15. The steel strand 15 thus moves downward as a whole and resets the wooden column 4 in migration through its own strength. Therefore, the steel strand 15 not only needs sufficient strength, but also needs to have a certain stretching force;
[0037] When the steel strand 15 moves downward, the tension will drive the clamping plate 21 to move downward, and then the linkage plate 23 will exert a downward extrusion on the lower transmission plate 24. Due to the fact that the area of the overhanging part of the transmission plate 24 is larger than the area connected with the inner side wall of the main plate 14, the bending part of the transmission plate 24 is prone to deformation under the action of force. Through this deformation, the transmission plate 24 will exert extrusion on the first sleeve 25, causing the rotation of the first sleeve 25, further enhancing the clamping strength of the second sleeve 26 on the steel strand 15, effectively preventing the steel strand 15 from being pulled out too much, and at the same time, the linkage plate 23 will be clamped with the inner side wall of the main plate 14 after moving down a small distance due to its shape, thereby forming a limiting effect to limit the downward movement of the clamping plate 21.
[0038] In summary, through the clamping assembly, the steel strand 15 can be stretched in a small range, offsetting the direct action of vibration on the wooden column 4, reducing the strength loss of the two side stiffening ribs 12, preventing the steel strand 15 from breaking due to excessive traction, thereby prolonging the service life of both, in addition, the clamping assembly also limits the displacement of the steel strand 15, ensuring that it prevents the wooden column 4 from deviating during vibration through its own traction strength, and at the same time, avoids loosening of the connection between the steel strand 15 and the wooden column 4, thereby improving the stability of the wooden column 4 node.
[0039] As shown in Figures 1-3 , one side of the main plate 14 is fixedly connected with two receiving plates 31, and the double-headed bolt 142 is fixedly connected between the two equal-height receiving plates 31.
[0040] The two sides of the main plate 14 are connected together by the double-headed bolt 142, and when one side of the main plate 14 is subjected to a vibration action, the other side of the main plate 14 can respond in linkage, thereby enhancing the anti-seismic strength of the overall structure. After the double-headed bolt 142 penetrates the wooden column 4, the threaded faces at both ends ensure the stability and tightness of the connection, and the cylindrical surface part of the double-headed bolt 142 will not exert extrusion on the hole wall of the wooden column 4 when the main plate 14 is subjected to force, which can effectively avoid excessive pressure on the connection area of the wooden column 4, and ensure that the structural strength of the wooden column 4 is not damaged. Through this design, not only the anti-seismic performance of the connection is improved, but also the stability and durability of the wooden column 4 are ensured.
[0041] As shown in Figures 1-3 , a plurality of buffer sleeves 17 are fixedly connected to the upper side of the main plate 14, each buffer sleeve 17 is coaxially arranged with each steel strand 15, and the two ends of the buffer sleeve 17 are respectively abutted with the upper end anchor 16 of the steel strand 15 and the upper side of the main plate 14.
[0042] The buffer sleeve 17 plays a supporting role to the steel strand 15 in this design. When the steel strand 15 is subjected to a shock action and a traction action, the buffer sleeve 17 can effectively buffer the instantaneous force, and by absorbing the sudden impact caused by the shock, the buffer sleeve 17 prevents the anchor 16 at the upper end of the steel strand 15 from moving too fast, thereby avoiding separation from the steel strand 15. In this way, the buffer sleeve 17 ensures that the steel strand 15 remains stable during the shock process, avoids loosening or failure, thereby ensuring the integrity of the steel strand 15 and ensuring its normal operation and service life.
[0043] As shown in Figures 1-3 each buffer ring 271 is fixedly connected between the buffer seat 27 and each steel strand 15;
[0044] When the wooden column 4 is subjected to a shock and tilts slightly to one side, each steel strand 15 will bear different sizes of traction force due to different tilting angles. The steel strand 15 bearing the force will pull and wear the bottom wall of the buffer seat 27. In order to reduce this effect, the buffer ring 271 is designed to disperse the direct contact force of the steel strand 15 on the bottom wall of the buffer seat 27. The presence of the buffer ring 271 effectively reduces the friction between the steel strand 15 and the bottom wall of the buffer seat 27, avoids excessive direct force, thereby protecting the bottom wall of the buffer seat 27 from excessive wear, ensuring that the structural strength of the buffer seat 27 is not damaged, prolonging its service life and maintaining its normal function.
[0045] As shown in Figures 1-4 the limiting groove 111 is opened at the lower side of the bottom plate 11, and the clamping line 18 is arranged in the limiting groove 111, and any one end of the clamping line 18 is fixedly connected with the adjacent steel strand 15;
[0046] Through the clamping line 18, the surrounding steel strands 15 are linked, and when any steel strand 15 is subjected to a traction force, this force will be transmitted to other steel strands 15 through the clamping line 18, so that they share the force. In this way, the traction force borne by a single steel strand 15 is effectively dispersed, not only improving the traction strength of a single steel strand 15, but also prolonging its service life. In addition, the mechanical properties of the overall system are optimized, so that the device can withstand greater shock forces, thereby improving the anti-seismic capacity of the structure.
[0047] The above is only a preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. A self-resetting joint device for wooden structures, comprising a base plate (11), Its characteristics are: The base plate (11) is detachably and fixedly connected to two stiffening ribs (12), and each stiffening rib (12) and the base plate (11) are connected by several anchor bolts (13); Two main body plates (14) are fixedly connected between the two stiffening ribs (12). Each main body plate (14) has several locking holes (141). Each locking hole (141) is fitted with a steel strand (15). Anchors (16) are fixedly connected to both ends of each steel strand (15). The diameter of the locking hole (141) is slightly larger than the outer diameter of the steel strand (15). The main plate (14) is internally connected to a clamping assembly for improving the repositioning effect of the steel strand (15) on the main plate (14).
2. The self-resetting node device for wooden structures according to claim 1, characterized in that, The clamping assembly includes a clamping plate (21), on which a plurality of clamping pieces (22) are fixedly connected. Each clamping piece (22) is fixedly clamped to each steel strand (15). Two linkage plates (23) are hinged to the lower side of the clamping plate (21). Each linkage plate (23) is connected to a transmission plate (24) at its lower end. Each transmission plate (24) is fixedly connected to the inner wall of the main body plate (14). Several first sleeves (25) are hinged between the two transmission plates (24). Each first sleeve (25) is coaxially arranged with each steel strand (15). Each first sleeve (25) is threaded with a second sleeve (26) on its lower side. A buffer seat (27) is fixedly connected to the lower side of the second sleeve (26). The buffer seat (27) is fixedly connected to the main body plate (14).
3. The self-resetting node device for wooden structures according to claim 1, characterized in that, Two support plates (31) are fixedly connected to one side of each of the main body plates (14), and double-headed bolts (142) are fixedly connected between the two support plates (31) of equal height.
4. The self-resetting node device for wooden structures according to claim 1, characterized in that, Several buffer sleeves (17) are fixedly connected to the upper side of the main plate (14). Each buffer sleeve (17) is coaxially arranged with each steel strand (15). The two ends of the buffer sleeve (17) abut against the upper end anchor (16) of the steel strand (15) and the upper side of the main plate (14), respectively.
5. The self-resetting node device for wooden structures according to claim 2, characterized in that, Each buffer seat (27) is fixedly connected to each steel strand (15) with a buffer ring (271).
6. The self-resetting node device for wooden structures according to claim 1, characterized in that, A limiting groove (111) is provided on the lower side of the base plate (11), and a locking line (18) is provided in the limiting groove (111). Each end of the locking line (18) is fixedly connected to the adjacent steel strand (15).