A detachable and replaceable self-resetting variable friction damper

Abstract

The application discloses a detachable and replaceable self-resetting variable-friction damper, which comprises a damper upper end plate and a damper lower end plate; a first energy dissipation piece and four second energy dissipation pieces are arranged between the damper upper end plate and the damper lower end plate, and the four second energy dissipation pieces are uniformly distributed in the circumferential direction, so that the damper can realize bidirectional limiting of a wall body in the transverse direction and the longitudinal direction.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of wall body anti-seismic damping, and relates to a detachable and replaceable self-resetting variable friction damper. BACKGROUND

[0002] Building construction damage due to earthquakes is that the earthquake makes the building produce horizontal and vertical vibration, causing damage and destruction of building components, and even causing the building to collapse. Some buildings can withstand the vibration force of the earthquake in strength, but due to the poor connection of the internal structure of the building and the poor integrity, excessive relative displacement between the internal structure of the building often occurs, thereby leading to building damage. The existing anti-seismic technology and construction measures still have a lot of room for improvement.

[0003] Under the action of the earthquake force, due to the lack of anti-seismic requirements in building design, insufficient construction measures, or due to defects in building form and material, etc., the wall body produces excessive displacement and deformation, thereby causing a series of structural damage, and thus changing the form of force transmission of the structure, and further adversely affecting other parts of the structure. SUMMARY

[0004] The present application aims to overcome the shortcomings of the prior art, and provides a detachable and replaceable self-resetting variable friction damper, which can realize bidirectional limiting of the wall body in the horizontal and vertical directions.

[0005] To achieve the above-mentioned purpose, the detachable and replaceable self-resetting friction damper comprises a damper upper end plate and a damper lower end plate; a first energy dissipation piece and four second energy dissipation pieces are arranged between the damper upper end plate and the damper lower end plate, and the four second energy dissipation pieces are uniformly distributed in the circumferential direction.

[0006] The second energy dissipation piece comprises a plurality of energy dissipation soft steel sheets arranged in the circumferential direction, two spring sleeves, a plurality of connecting rods and a plurality of springs, wherein the outer sides of the energy dissipation soft steel sheets are connected by a soft steel hoop, and the upper ends of the energy dissipation soft steel sheets and the lower ends of the energy dissipation soft steel sheets are connected by slidable bolts.

[0007] The spring sleeve comprises a plurality of branch sleeves, and the end portions of the branch sleeves are connected in communication, one connecting rod corresponds to one branch sleeve and one spring, wherein the end portions of the connecting rods are connected after being inserted into the corresponding branch sleeves, one end of each spring is sleeved on the corresponding connecting rod, and the other end of each spring is connected to the energy dissipation soft steel sheet.

[0008] The two spring sleeves are provided with lead blocks, and two diagonal second energy dissipation members are connected by a steel strand, wherein one end of the steel strand is connected with a lead block in one second energy dissipation member, and the other end of the steel strand is connected with a lead block in the other second energy dissipation member after passing through an inner track of the upper end plate of the damper.

[0009] The outer sides of the energy dissipation soft steel pieces are connected by a soft steel hoop and a second ordinary bolt.

[0010] The first energy dissipation member comprises a support plate, a unilateral gear track frame, a roller shaft, a ball disc and four first wave-shaped energy dissipation soft steels.

[0011] The lower end of the support plate is fixed on the lower end plate of the damper, the upper end of the unilateral gear track frame is fixed on the bottom of the upper end plate of the damper, and the lower end of the unilateral gear track frame is connected with the top of the support plate, wherein the unilateral gear track frame is provided with second wave-shaped energy dissipation soft steels on the upper end plate of the damper and the support plate, and the unilateral gear track frame is provided with vertically distributed gear racks, one end of two first wave-shaped energy dissipation soft steels is connected with the bottom of the upper end plate of the damper, the other end of the two first wave-shaped energy dissipation soft steels is connected with the roller shaft, one end of the other two first wave-shaped energy dissipation soft steels is connected with the top of the lower end plate of the damper, the other end of the other two first wave-shaped energy dissipation soft steels is connected with the roller shaft, the end of the roller shaft is movably sleeved with a gear, the gear is engaged with the gear rack, and the end of the roller shaft is inserted into the ball disc.

[0012] The first wave-shaped energy dissipation soft steel is connected with the bottom of the upper end plate of the damper by an ordinary bolt.

[0013] The first wave-shaped energy dissipation soft steel is connected with the top of the lower end plate of the damper by an ordinary bolt.

[0014] The roller shaft and the ball disc are provided with a ball.

[0015] The detachable and replaceable self-resetting variable friction damper has the following beneficial effects:

[0016] The detachable and replaceable self-resetting variable friction damper has the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The structure diagram of the present application is shown in the figure.

[0018] Figure 2 Figure 1 is a schematic diagram of the upper end plate of the present application and the internal pipe arrangement with steel strands 20;

[0019] Figure 3 Figure 2 is a front view of the present application;

[0020] Figure 4 Figure 3 is a left view of the present application;

[0021] Figure 5 Figure 4 is a top perspective view of the present application;

[0022] Figure 6 Figure 5 is a schematic diagram of the spindle-like structure of the present application;

[0023] Figure 7 Figure 6 is a schematic diagram of the cross-distributed energy dissipation soft steel sheet 4 of the present application;

[0024] Figure 8 Figure 7 is a schematic diagram of the roller-like 13 energy dissipation structure of the present application;

[0025] Figure 9 Figure 8 is a schematic diagram of the spring sleeve group structure of the present application.

[0026] Wherein, 1 is the upper end plate of the damper, 2 is the lower end plate of the damper, 3 is the slidable bolt, 4 is the energy dissipation soft steel sheet, 5 is the connecting rod, 6 is the spring sleeve, 7 is the lead block, 8 is the spring, 9 is the ordinary bolt, 10 is the first wave-shaped energy dissipation soft steel, 11 is the ordinary bolt, 12 is the support plate, 13 is the roller, 14 is the one-sided gear rail frame, 15 is the gear, 16 is the ball, 17 is the ball disc, 18 is the second wave-shaped energy dissipation soft steel, 19 is the inner rail, and 20 is the steel strand. DETAILED DESCRIPTION

[0027] In order to make the personnel in the technical field better understand the present application scheme, the technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments, and are not intended to limit the scope of the present application. In addition, in the following description, the description of the known structures and technologies is omitted to avoid unnecessary confusion of the concepts disclosed in the present application. Based on the embodiments in the present application, all other embodiments obtained by the ordinary skilled in the art without making creative efforts should belong to the scope of protection of the present application.

[0028] The structural schematic diagram according to the disclosed embodiment of the present application is shown in the accompanying drawings. The drawings are not drawn to scale, in which some details are enlarged for the purpose of clear expression, and some details can be omitted. The shapes of various regions, layers and the relative size and position relationship therebetween shown in the drawings are only exemplary, and in practice, they can be deviated due to manufacturing tolerance or technical limitation, and regions / layers with different shapes, sizes and relative positions can be additionally designed according to actual needs by those skilled in the art.

[0029] With reference to Figures 1 to 9 The detachable and replaceable self-resetting friction damper comprises a damper upper end plate 1 and a damper lower end plate 2.

[0030] A first energy dissipation member and four second energy dissipation members are arranged between the damper upper end plate 1 and the damper lower end plate 2, and the four second energy dissipation members are uniformly distributed in the circumferential direction. The second energy dissipation member comprises a plurality of energy dissipation soft steel sheets 4 arranged in the circumferential direction. The outer side of each energy dissipation soft steel sheet 4 is connected by a soft steel hoop and a second ordinary bolt 9. The upper end of each energy dissipation soft steel sheet 4 and the lower end of each energy dissipation soft steel sheet 4 are connected by a slidable bolt 3.

[0031] The spring sleeve 6 comprises a plurality of branch sleeves, and the end portions of each branch sleeve are connected. One connecting rod 5 corresponds to one branch sleeve and one spring 8. The end portion of each connecting rod 5 is inserted into the corresponding branch sleeve and then connected. One end of each spring 8 is sleeved on the corresponding connecting rod 5, and the other end of each spring 8 is connected to the energy dissipation soft steel sheet 4. Lead blocks 7 are arranged between the two spring sleeves 6.

[0032] Two diagonal second energy dissipation members are connected by a steel strand 20. One end of the steel strand 20 is connected to a lead block 7 in one second energy dissipation member, and the other end of the steel strand 20 passes through an inner side rail 19 of the damper upper end plate 1 and is connected to a lead block 7 in another second energy dissipation member. The two diagonally distributed lead blocks 7 limit the displacement of each other, so as to prevent the displacement of the lead blocks 7 at both ends from being too large. The lead blocks 7 and the energy dissipation soft steel sheets 4 rub to achieve the function of shock absorption and energy dissipation.

[0033] The upper end of the first energy dissipation member is fixed to the middle portion of the damper upper end plate 1, and the lower end of the first energy dissipation member is fixed to the middle portion of the damper lower end plate 2.

[0034] The first energy dissipation member comprises a support plate 12, a single-sided gear rail frame 14, a roller shaft 13, a ball disc 17 and four first wave-shaped energy dissipation soft steels 10.

[0035] The lower end of the support plate 12 is fixed on the damper lower end plate 2, the upper end of the single-sided gear track frame 14 is fixed on the bottom of the damper upper end plate 1, the lower end of the single-sided gear track frame 14 is connected with the top of the support plate 12, wherein the single-sided gear track frame 14 is provided with the second wave-shaped energy dissipation soft steel 18 with the damper upper end plate 1 and the support plate 12, and the single-sided gear track frame 14 is provided with a vertical distribution of the rack, one end of the two first wave-shaped energy dissipation soft steels 10 is connected with the bottom of the damper upper end plate 1 through the common bolt 11, the other end of the two first wave-shaped energy dissipation soft steels 10 is connected with the roller shaft 13, one end of the other two first wave-shaped energy dissipation soft steels 10 is connected with the top of the damper lower end plate 2 through the common bolt 11, the other end of the other two first wave-shaped energy dissipation soft steels 10 is connected with the roller shaft 13, the end of the roller shaft 13 is movably sleeved with the gear 15, the gear 15 is engaged with the rack, and the end of the roller shaft 13 is inserted into the ball disc 17, and the roller shaft 13 and the ball disc 17 are provided with the ball 16, which can rotate along the inner groove of the ball disc 17 to drive the roller shaft 13 to rotate on the single-sided gear track frame 14 through the gear 15, so as to play a friction energy dissipation effect, and the first wave-shaped energy dissipation soft steel 10 can also play an energy dissipation effect.

[0036] It should be noted that the energy dissipation soft steel sheet 4 in the application is connected to the spindle-shaped energy dissipation structure through the slidable bolt 3, and is used to connect the damper upper end plate 1 and the damper lower end plate 2. The upper and lower parts of the spindle-shaped structure are connected to the steel cylinder through the slidable bolt 3 and the connecting rod 5 to limit the horizontal displacement. The entire spindle-shaped structure provides vertical energy dissipation and shock absorption effect.

[0037] Compared with the limiting device, the limiting device system provided by the application has simple structure, low cost and convenient construction. It can not only realize the limiting function in any horizontal direction according to the design requirements, but also has relatively independent limiting function in each direction without affecting each other, thereby facilitating to ensure the accuracy of theoretical calculation and analysis. Meanwhile, the limiting device can play a certain energy dissipation and shock absorption effect according to the design requirements, absorb a certain amount of seismic energy, and reduce the impact force and the transmission of seismic force to the pier when the limiting device collides. It is an effective supplement to the conventional building seismic means or building seismic isolation technology, which can ensure that the wall displacement does not exceed the limit and ensure the safety of the building structure during the earthquake.

[0038] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the application and not to limit them. Although the application has been described in detail with reference to the above examples, those skilled in the art should understand that the specific embodiments of the application can be modified or replaced, and any modification or equivalent replacement without departing from the spirit and scope of the application should be covered within the protection scope of the claims of the application.

Claims

1. A detachable and replaceable self-resetting friction damper, characterized in that: The damper comprises an upper end plate (1) and a lower end plate (2); a first energy-absorbing component and four second energy-absorbing components are arranged between the upper end plate (1) and the lower end plate (2), and the four second energy-absorbing components are evenly distributed along the circumferential direction; The second energy-absorbing component comprises a plurality of energy-absorbing soft steel sheets (4), two spring sleeves (6), a plurality of connecting rods (5) and a plurality of springs (8) arranged along the circumferential direction, wherein the outer sides of each energy-absorbing soft steel sheet (4) are connected via a soft steel hoop, and the upper end of each energy-absorbing soft steel sheet (4) and the upper end plate (1) of the damper and the lower end of each energy-absorbing soft steel sheet (4) and the lower end plate (2) of the damper are connected via a slidable bolt (3); The spring sleeve (6) includes a plurality of branch sleeves, and the ends of the branch sleeves are connected. One connecting rod (5) corresponds to one branch sleeve and one spring (8), wherein the ends of each connecting rod (5) are inserted into the corresponding branch sleeve and then connected. One end of each spring (8) is sleeved on the corresponding connecting rod (5), and the other end of each spring (8) is connected to the energy-absorbing soft steel sheet (4).

2. The detachable and replaceable self-resetting friction damper according to claim 1, characterized in that: A lead block (7) is provided between the two spring sleeves (6), and the two diagonally opposite second energy-absorbing parts are connected via a steel strand (20), wherein one end of the steel strand (20) is connected to the lead block (7) in one second energy-absorbing part, and the other end of the steel strand (20) passes through the inner track (19) of the damper upper end plate (1) and is connected to the lead block (7) in the other second energy-absorbing part.

3. The detachable and replaceable self-resetting friction damper according to claim 1, characterized in that: The outer sides of each energy-consuming mild steel sheet (4) are connected via a mild steel hoop and a second common bolt (9).

4. The detachable and replaceable self-resetting friction damper according to claim 1, characterized in that: The first energy-absorbing component comprises a support plate (12), a single-side gear track frame (14), a roller (13), a ball plate (17) and four first corrugated energy-absorbing soft steels (10); The lower end of the support plate (12) is fixed to the lower end plate (2) of the damper, the upper end of the single-sided gear track frame (14) is fixed to the bottom of the upper end plate (1) of the damper, and the lower end of the single-sided gear track frame (14) is connected to the top of the support plate (12), wherein the single-sided gear track frame (14) and the upper end plate (1) of the damper and the support plate (12) are all provided with a second corrugated energy-absorbing soft steel (18), and a vertically distributed rack is provided on the single-sided gear track frame (14), and one end of the two first corrugated energy-absorbing soft steels (10) is connected to the damper. The bottom of the upper end plate (1) of the damper is connected, the other ends of the two first corrugated energy-absorbing soft steels (10) are connected to the roller (13), one end of the other two first corrugated energy-absorbing soft steels (10) are connected to the top of the lower end plate (2) of the damper, the other ends of the other two first corrugated energy-absorbing soft steels (10) are connected to the roller (13), the end of the roller (13) is movably sleeved with a gear (15), the gear (15) is meshed with the rack, and the end of the roller (13) is inserted into the ball plate (17).

5. The detachable and replaceable self-resetting friction damper according to claim 1, characterized in that: The first corrugated energy-absorbing soft steel (10) is connected to the bottom of the damper upper end plate (1) via common bolts (11).

6. The detachable and replaceable self-resetting friction damper according to claim 1, characterized in that: The first corrugated energy-absorbing soft steel (10) is connected to the top of the damper lower end plate (2) via common bolts (11).

7. The detachable and replaceable self-resetting friction damper according to claim 1, characterized in that: A ball (16) is arranged between the roller (13) and the ball plate (17).

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