Friction energy dissipation supporting structure with deviation rectifying function for ancient building wood structure

Abstract

The invention relates to the technical field of supporting structures for ancient building wood structures, in particular to a friction energy dissipation supporting structure with a deviation rectifying function for an ancient building wood structure. In order to solve the problems that in the prior art, a wood supporting structure lacks the function of recovering deformation of a wood column and does not have the deformation self-recovery performance, the novel friction energy dissipation supporting structure with the deviation rectifying function for the historic building wood structure is provided and comprises a wood supporting piece, and a U-shaped fixed connecting plate is fixedly wrapped outside one end of the wood supporting piece; a U-shaped fixed connecting plate is arranged at one end of the wood support, a first clamp is hinged to the U-shaped fixed connecting plate, a U-shaped inner connecting plate and a U-shaped outer connecting plate wrap the other end of the wood support, a jack and a tension and compression spring are arranged between the U-shaped inner connecting plate and the U-shaped outer connecting plate, a screw and a nut are fixed to the right side face of a middle arm plate of the U-shaped outer connecting plate, and a second clamp is hinged to the right side face of the independent connecting plate. According to the friction energy dissipation supporting structure, the friction energy dissipation supporting function can be achieved, and the deviation rectifying function can also be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of supporting structures for ancient building wooden structures, in particular to a friction energy dissipation supporting structure for ancient building wooden structures with a deviation correction function. Background Art

[0002] The wooden structures of ancient buildings are "immovable cultural relics" of great historical significance, and wooden structures account for more than half of the total number of ancient buildings in my country. Due to the erosion of the natural environment and the influence of human factors, the existing wooden structures of ancient buildings have produced adverse effects such as deterioration of wood properties, loosening of component connections, and reduction of effective cross-section of components, which have significantly reduced the bearing capacity and lateral stiffness of the wooden structures of ancient buildings. In particular, the tilting deformation of wooden columns has seriously threatened the safety of the structure. Therefore, enhancing the lateral stiffness of the structure and restoring some of the deformation of the structure are one of the urgent problems to be solved in the wooden structures of ancient buildings.

[0003] The wooden support is a key component to improve the lateral stiffness of the wooden structure of ancient buildings. The friction energy dissipation support uses the sliding friction force to do work to dissipate energy, so as to achieve the effect of energy dissipation and improve the seismic performance of the wooden structure of ancient buildings. The prior art, such as a friction damping glued wood support structure and its construction method with application number 202011336424.7, improves the lateral stiffness and seismic performance of the wooden structure of ancient buildings, but the friction damping glued wood support structure also has the following shortcomings: 1) Most of the wooden structures of ancient buildings have different degrees of tilt deformation of wooden columns, and the deformation has a tendency to increase further. The friction damping glued wood support structure lacks the function of restoring the deformation of wooden columns; 2) The wooden structure of ancient buildings itself has the characteristic of self-recovery during vibration, while the friction damping glued wood support structure does not have deformation recovery, so the wooden structure of ancient buildings needs to overcome the friction in the wooden support structure first during the deformation recovery process, thereby weakening the deformation recovery ability of the wooden structure of ancient buildings itself, and then leading to an increase in residual deformation in the wooden structure of ancient buildings. Summary of the invention

[0004] In order to solve the problems that the wooden support structure in the prior art lacks the function of restoring the deformation of wooden columns and has no deformation self-recovery performance, the present invention provides a new friction energy dissipation support structure for ancient building wooden structures with a correction function.

[0005] The present invention is achieved by adopting the following technical solutions: The U-shaped bracket has two holes, one for fixing the U-shaped bracket and the other for fixing the U-shaped bracket. The connecting plate is fixed to the other end of the wooden support, and a jack is provided in the reserved spacing, whose fixed end is fixed to the right side surface of the middle arm plate of the U-shaped inner connecting plate, and the telescopic end of the jack is arranged along the length direction of the wooden support and its telescopic end can be telescoped outside the U-shaped outer connecting plate, and a tension and compression spring is also fixed in the reserved spacing, and the two ends of the tension and compression spring are respectively fixed to the right side surface of the middle arm plate of the U-shaped inner connecting plate and the left side surface of the middle arm plate of the U-shaped outer connecting plate, and screws are respectively fixed to the front and rear of the right side surface of the middle arm plate of the U-shaped outer connecting plate, and the independent connecting plate is arranged parallel to the middle arm plate of the U-shaped outer connecting plate, and two screw holes are provided on the independent connecting plate, and the independent connecting plate is slidably connected to the two screws through the two screw holes, and each screw is equipped with two nuts, and the two nuts are respectively located on the left and right sides of the independent connecting plate, and a second clamp is hinged in the middle of the right side surface of the independent connecting plate for clamping with the other side wooden column in the wooden structure of the ancient building.

[0006] Working process: When in use, the two clamps are fixed to the wooden columns on both sides respectively. In order to realize the correction function in the subsequent use process, the second clamp needs to be fixed to the wooden column with deformation tendency. A pre-tightening force is applied to the first high-strength bolt and the first high-strength nut. The pre-tightening force makes the U-shaped inner connecting plate contact with the U-shaped outer connecting plate to generate friction. When the friction energy dissipation support function needs to be exerted, the two nuts are tightened. When the wooden structure of the ancient building is subjected to external force, the U-shaped inner connecting plate and the U-shaped outer connecting plate produce relative sliding, and the tension and compression spring produces tensile or compressive deformation. When the external force disappears, the tension and compression spring drives the U-shaped inner connecting plate or the U-shaped outer connecting plate to return to the initial position, so that the friction energy dissipation support structure has deformation recovery ability and reduces the residual deformation of the wooden structure of the ancient building; when the correction function needs to be exerted, the two nuts are loosened and the jack is started. The jack supports the independent connecting plate. The U-shaped inner connecting plate and the wooden support provide reaction force for the jack, pushing the independent connecting plate to the right, and then causing the corresponding wooden column to produce a displacement in the opposite direction of its own tilt deformation, thereby realizing the correction of the wooden column. After reaching the predetermined displacement, the jack stops moving. After the deformation of the wooden structure of the ancient building is stable, the jack is retracted to its original position, and the two nuts are tightened again to restore its friction energy dissipation support function. During use, the friction energy dissipation support function and the correction function can be switched at any time according to the actual deformation of the ancient building's wooden structure. For large-deformation wooden columns, corrections can be made in small amounts and multiple times to avoid adverse effects on the ancient building's wooden components.

[0007] Further, two first ear plates are distributed on the left side of the U-shaped fixed connection plate, a second ear plate adapted to the first ear plate is fixed on the first clamp, the first ear plate and the second ear plate are hinged to the first clamp and the U-shaped fixed connection plate through a first pin shaft, and the hinge shaft is arranged in the front-to-back direction, and two third ear plates are distributed on the right side of the independent connection plate, a fourth ear plate adapted to the third ear plate is fixed on the second clamp, the third ear plate and the fourth ear plate are hinged to the second clamp and the independent connection plate through a second pin shaft, and the hinge shaft is arranged in the front-to-back direction. The hinge structure is simple, stable and easy to implement.

[0008] Furthermore, the arm plates on both sides of the U-shaped fixed connecting plate, the U-shaped inner connecting plate and the U-shaped outer connecting plate are all distributed front and back, further improving the stability of the overall structure.

[0009] Furthermore, each side arm plate of the U-shaped outer connecting plate is provided with two slide grooves distributed side by side up and down, and each side arm plate of the U-shaped inner connecting plate and the other end of the support are provided with four bolt holes. The four bolt holes are matched with the first slide groove in groups of two, and there are four first high-strength bolts and four first high-strength nuts, so that the connection between the U-shaped outer connecting plate, the U-shaped inner connecting plate and the other end of the wooden support is more stable and the energy consumption performance is better.

[0010] Furthermore, four bolt holes are distributed on both side arm plates of the U-shaped fixed connection plate and one end of the wooden support member, and the U-shaped fixed connection plate and one end of the wooden support member are fixedly connected by four second high-strength bolts and four second high-strength nuts.

[0011] Furthermore, butterfly washers are provided at both ends of the first high-strength bolt to improve the overall stability of the structure and facilitate the application of pre-tightening force.

[0012] Furthermore, the U-shaped outer connecting plate and the U-shaped inner connecting plate are both sandblasted steel connecting parts, which are convenient for dissipating energy through friction and improving the energy dissipation and shock absorption effect.

[0013] Furthermore, the first clamp and the second clamp are both two-half clamps, and the connection with the wooden column is tighter.

[0014] The beneficial effects produced by the present invention are as follows: the friction energy dissipation support structure described in the present invention can not only realize the friction energy dissipation support function and regulate the friction force generated by the support, but also correct the wooden column in an inclined state; at the same time, the structure is simple to operate, will not damage the original wooden structure, and has small residual deformation; in addition, it can also realize self-recovery of deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0016] 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 below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0017] Figure 1 It is a schematic diagram of the overall structure of the friction energy dissipation support structure of the present invention; Figure 2 It is a schematic diagram of the state when the friction energy dissipation support structure of the present invention performs a supporting function; Figure 3 It is a schematic diagram of the state when the friction energy dissipation support structure of the present invention performs the deviation correction function; Figure 4 This is a schematic diagram of an application experiment of the friction energy dissipation support structure of the present invention; Figure 5 It is a comparison diagram of the friction energy dissipation effect of using the friction energy dissipation support structure described in the present invention and not using the friction energy dissipation support structure described in the present invention.

[0018] In the figure: 1-wooden support, 2-wooden column, 3-U-shaped fixed connecting plate, 4-first clamp, 5-U-shaped inner connecting plate, 6-U-shaped outer connecting plate, 7-slide, 8-first high-strength bolt, 9-first high-strength nut, 10-jack, 11-tension and compression spring, 12-screw, 13-independent connecting plate, 14-nut, 15-second clamp, 16-first ear plate, 17-second ear plate, 18-first pin shaft, 19-third ear plate, 20-fourth ear plate, 21-second pin shaft, 22-second high-strength bolt, 23-second high-strength nut. DETAILED DESCRIPTION

[0019] In order to more clearly understand the above-mentioned objectives, features and advantages of the present invention, the scheme of the present invention will be further described below. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0020] In the description, it should be noted that the terms "first" and "second" are only used for descriptive purposes and should not be understood as indicating or implying relative importance. It should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two elements. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0023] like Figure 1The U-shaped fixing plate 3 is a kind of fixing plate 11 of the U-shaped fixing plate 12, and the fixing plate 13 is a kind of fixing plate 12 of the U-shaped fixing plate 12. The other end is fixed, and a jack 10 is fixed to the right side of the middle arm plate of the U-shaped inner connecting plate 5 within the reserved spacing. The telescopic end of the jack 10 is arranged along the length direction of the wooden support 1 and its telescopic end can be telescoped outside the U-shaped outer connecting plate 6. A tension and compression spring 11 is also fixed within the reserved spacing. The two ends of the tension and compression spring 11 are respectively fixed to the right side of the middle arm plate of the U-shaped inner connecting plate 5 and the left side of the middle arm plate of the U-shaped outer connecting plate 6. The right side of the middle arm plate of the U-shaped outer connecting plate 6 Screws 12 are fixed on the front and rear respectively, the independent connecting plate 13 is arranged parallel to the middle arm plate of the U-shaped outer connecting plate 6, and two screw holes are provided on the independent connecting plate 13. The independent connecting plate 13 is slidably connected to the two screws 12 through the two screw holes. Each screw 12 is equipped with two nuts 14, and the two nuts 14 are respectively located on the left and right sides of the independent connecting plate 13. A second clamp 15 for clamping with the other side wooden column 2 in the wooden structure of the ancient building is hinged in the middle of the right side surface of the independent connecting plate 13.

[0024] Working process: When in use, fix the two clamps to the wooden posts 2 on both sides respectively. To realize the deviation correction function in the subsequent use, the second clamp 15 needs to be fixed to the wooden post 2 with a tendency to deform. Apply pre-tightening force to the first high-strength bolt 8 and the first high-strength nut 9. The pre-tightening force makes the U-shaped inner connecting plate 5 and the U-shaped outer connecting plate 6 contact and generate friction. Figure 2 As shown, when the friction energy dissipation support function needs to be exerted, the two nuts 14 are tightened. When the ancient building wooden structure is subjected to external force, the U-shaped inner connecting plate 5 and the U-shaped outer connecting plate 6 produce relative sliding, and the tension and compression spring 11 produces tensile or compressive deformation. When the external force disappears, the tension and compression spring 11 drives the U-shaped inner connecting plate 5 or the U-shaped outer connecting plate 6 to return to the initial position, so that the friction energy dissipation support structure has deformation recovery ability, reducing the residual deformation of the ancient building wooden structure; Figure 3As shown, when the correction function is needed, the two nuts 14 are loosened, and the jack 10 is started. The jack 10 supports the independent connection plate 13, and the U-shaped inner connection plate 5 and the wooden support member 1 provide a reaction force for the jack 10, pushing the independent connection plate 13 to move right, thereby causing the corresponding wooden column 2 to produce a displacement opposite to its own tilt deformation direction, realizing the correction of the wooden column 2, and the jack 10 stops after reaching the predetermined displacement. After the deformation of the wooden structure of the ancient building is stable, the jack 10 is retracted to the original position, and the two nuts 14 are tightened to restore its friction energy support function. During use, the friction energy support function and the correction function can be switched at any time according to the actual deformation of the wooden structure of the ancient building. For the large-deformation wooden column 2, a small amount of correction can be performed multiple times to avoid adverse effects on the wooden components of the ancient building.

[0025] In specific implementation, two first ear plates 16 are distributed on the left side of the U-shaped fixed connecting plate 3, a second ear plate 17 adapted to the first ear plate 16 is fixed on the first clamp 4, the first ear plate 16 and the second ear plate 17 are hinged to the first clamp 4 and the U-shaped fixed connecting plate 3 through the first pin 18, and the hinge axis is arranged in the front-to-back direction, two third ear plates 19 are distributed on the right side of the independent connecting plate 13, a fourth ear plate 20 adapted to the third ear plate 19 is fixed on the second clamp 15, the third ear plate 19 and the fourth ear plate 20 are hinged to the second clamp 15 and the independent connecting plate 13 through the second pin 21, and the hinge axis is arranged in the front-to-back direction. The hinge structure is simple, stable and easy to implement.

[0026] During specific implementation, the arm plates on both sides of the U-shaped fixed connecting plate 3, the U-shaped inner connecting plate 5, and the U-shaped outer connecting plate 6 are all distributed front and back, so as to further improve the stability of the overall structure.

[0027] In specific implementation, each side arm plate of the U-shaped outer connecting plate 6 is provided with two slide grooves 7 distributed side by side up and down, and each side arm plate of the U-shaped inner connecting plate 5 and the other end of the support are provided with four bolt holes. The four bolt holes are matched with the first slide groove 7 in groups of two, and there are four first high-strength bolts 8 and four first high-strength nuts 9, so that the connection between the U-shaped outer connecting plate 6, the U-shaped inner connecting plate 5 and the other end of the wooden support 1 is more stable and the energy consumption performance is better.

[0028] In specific implementation, four bolt holes are distributed on the two side arm plates of the U-shaped fixed connecting plate 3 and one end of the wooden support 1. The U-shaped fixed connecting plate 3 and one end of the wooden support 1 are fixedly connected by four second high-strength bolts 22 and four second high-strength nuts 23.

[0029] During specific implementation, butterfly washers are provided at both ends of the first high-strength bolt 8 to improve the overall stability of the structure and facilitate the application of pre-tightening force.

[0030] In specific implementation, the U-shaped outer connecting plate 6 and the U-shaped inner connecting plate 5 are both sandblasted steel connecting parts, which are convenient for dissipating energy through friction and improving the energy dissipation and shock absorption effect.

[0031] In specific implementation, the first clamp 4 and the second clamp 15 are both two-half clamps, and the connection with the wooden column 2 is tighter.

[0032] like Figure 4 As shown, it is a schematic diagram of the application experiment of the friction energy dissipation support structure of the present invention. The structure is used to carry out quasi-static tests on a 1:3 scaled wooden structure model before and after reinforcement. The tested model is based on the inner and outer groove column frame structure of the second floor of the Yingxian Wooden Pagoda, and the vertical load is 5 tons. Figure 5 Comparison of the hysteresis curves of the structure before and after the support reinforcement shows that after adding the new energy-absorbing support structure, the fullness of the hysteresis curve is significantly improved, the hysteresis loop changes from S-shaped to shuttle-shaped, and the curve change trend during loading and unloading is consistent with that without the support structure, which shows that adding support does not change the original characteristics of the structure; in addition, the area of ​​the hysteresis curve of the structure after adding support is significantly larger than that without the support structure, further indicating that the new support has a significant effect on improving the energy consumption capacity of the structure, and has good stability for improving the energy consumption of the structure. The device has the advantages of low manufacturing cost, restorable function, simple installation and operation, easy control, and reasonable force. It can be widely used in the reinforcement and correction of various ancient building structures, providing a new idea for the protection of related ancient building cultural relics.

[0033] The above is only a specific implementation of the present invention, which enables those skilled in the art to understand or implement the present invention. Although detailed descriptions are given with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments, and they should all be covered by the protection scope of the claims.

Claims

1. A friction energy dissipation support structure for an ancient building wooden structure with a deviation correction function, characterized in that: The invention comprises a wooden support member (1) and an independent connecting plate (13), wherein one end of the wooden support member (1) is covered with a U-shaped fixed connecting plate (3) with its opening facing right, the left side of the U-shaped fixed connecting plate (3) is hingedly connected with a first clamp (4) for clamping with a wooden column (2) on one side of the wooden structure of the ancient building, the other end of the wooden support member is covered with a U-shaped inner connecting plate (5) with its opening facing left, the outer cover of the U-shaped inner connecting plate (5) is covered with a U-shaped outer connecting plate (6), the right side of the middle arm plate of the U-shaped inner connecting plate (5) is connected to the U-shaped outer A reserved spacing is provided between the left sides of the middle arm plates of the connecting plate (6); oblong sliding grooves (7) arranged along the length direction of the wooden support (1) are provided on the arm plates on both sides of the U-shaped outer connecting plate (6); first bolt holes are provided on the arm plates on both sides of the U-shaped inner connecting plate (5) and the other end of the wooden support; the sliding grooves (7) and the first bolt holes are fixed to the other end of the wooden support by matching first high-strength bolts (8) and first high-strength nuts (9); and the reserved spacing is provided with the other high-strength bolts (8) and first high-strength nuts (9). A jack (10) having a fixed end fixed to the right side of the middle arm plate of the U-shaped inner connecting plate (5), a telescopic end of the jack (10) arranged along the length direction of the wooden support member (1) and its telescopic end can be telescoped outside the U-shaped outer connecting plate (6), a tension and compression spring (11) is also fixed in the reserved spacing, and both ends of the tension and compression spring (11) are respectively fixed to the right side of the middle arm plate of the U-shaped inner connecting plate (5) and the left side of the middle arm plate of the U-shaped outer connecting plate (6), and screws ( 12), the independent connecting plate (13) is arranged in parallel with the middle arm plate of the U-shaped outer connecting plate (6), the independent connecting plate (13) is provided with two screw holes, the independent connecting plate (13) is slidably connected to the two screw rods (12) through the two screw holes, each screw rod (12) is provided with two nuts (14), the two nuts (14) are respectively located on the left and right sides of the independent connecting plate (13), and the middle part of the right side surface of the independent connecting plate (13) is hinged with a second clamp (15) for clamping with the other side wooden column (2) in the wooden structure of the ancient building.

2. The friction energy dissipation support structure for ancient building wooden structure with deviation correction function according to claim 1 is characterized in that: Two first ear plates (16) are arranged on the front and rear sides of the left side of the U-shaped fixed connection plate (3); a second ear plate (17) adapted to the first ear plate (16) is fixed on the first clamp (4); the first ear plate (16) and the second ear plate (17) are hingedly connected to the first clamp (4) and the U-shaped fixed connection plate (3) via a first pin shaft (18); and the hinge shaft is arranged along the front-to-back direction; two third ear plates (19) are arranged on the front and rear sides of the right side of the independent connection plate (13); a fourth ear plate (20) adapted to the third ear plate (19) is fixed on the second clamp (15); the third ear plate (19) and the fourth ear plate (20) are hingedly connected to the second clamp (15) and the independent connection plate (13) via a second pin shaft (21); and the hinge shaft is arranged along the front-to-back direction.

3. The friction energy dissipation support structure for ancient building wooden structure with deviation correction function according to claim 2 is characterized in that: The arm plates on both sides of the U-shaped fixed connection plate (3), the U-shaped inner connection plate (5) and the U-shaped outer connection plate (6) are all distributed frontward and rearward.

4. The friction energy dissipation support structure for ancient building wooden structure with deviation correction function according to claim 3 is characterized in that: Each side arm plate of the U-shaped outer connecting plate (6) is provided with two slide grooves (7) arranged side by side, and each side arm plate of the U-shaped inner connecting plate (5) and the other end of the supporting member are provided with four bolt holes, the four bolt holes are matched with the first slide groove (7) in groups of two, and the first high-strength bolts (8) and the first high-strength nuts (9) are both four.

5. The friction energy dissipation support structure for ancient building wooden structure with deviation correction function according to claim 4 is characterized in that: Four bolt holes are distributed on both side arm plates of the U-shaped fixed connection plate (3) and one end of the wooden support member (1), and the U-shaped fixed connection plate (3) and one end of the wooden support member (1) are fixedly connected via four second high-strength bolts (22) and four second high-strength nuts (23).

6. The friction energy dissipation support structure for ancient building wooden structure with deviation correction function according to claim 5 is characterized in that: Both ends of the first high-strength bolt (8) are provided with butterfly washers.

7. The friction energy dissipation support structure for ancient building wooden structure with deviation correction function according to claim 6 is characterized in that: The U-shaped outer connecting plate (6) and the U-shaped inner connecting plate (5) are both sandblasted steel connecting parts.

8. The friction energy dissipation support structure for ancient building wooden structure with deviation correction function according to claim 7 is characterized in that: The first clamp (4) and the second clamp (15) are both two-half clamps.

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