CN217579737U - Multi-disc inserted friction pendulum antidetonation type support - Google Patents

Abstract

The utility model discloses a multi-disc embedded friction pendulum anti-seismic support which comprises an upper support, a middle support, a lower support and a bottom support, wherein the bottom of the upper support is provided with a first concave curved surface; the top of the middle support is provided with a first convex curved surface, the first convex curved surface is connected with the first concave curved surface, and the bottom of the middle support is provided with a second convex curved surface; the top of the lower support is provided with a second concave curved surface, the second concave curved surface is connected with a second convex curved surface, and the bottom of the lower support is provided with a first sliding plane; the top of the bottom support is provided with a second sliding plane, and the first sliding plane is connected with the second sliding plane. In the utility model, during daily work, the lower support can generate plane friction with the bottom support, thereby consuming the received impact energy; under the earthquake condition, the limit of the upper support and the lower support is released, the relative position between the lower support and the bottom support is limited, the middle support forms a friction pendulum, the impact energy consumed by the friction of the curved surface is consumed, and the friction pendulum is prevented from being influenced by horizontal sliding.

Description

Multi-disc inserted friction pendulum antidetonation type support

Technical Field

The utility model relates to an antidetonation support technical field, in particular to multi-disc inserted friction pendulum antidetonation type support.

Background

In the design of roads and bridges, the bridge support is a link of a lower structure on the bridge, has the function of transmitting the load generated by the upper structure to the lower structure, and can simultaneously meet the requirements of realizing horizontal displacement, corner and deformation of the bridge structure under the action of factors such as temperature change, concrete shrinkage, automobile impact, earthquake and the like, thereby ensuring the safety of the lower structure on the bridge. In the prior art, the friction pendulum is influenced by horizontal sliding motion, when an earthquake occurs, the friction pendulum horizontally slides and swings, energy generated by impact cannot be fully absorbed, and the anti-seismic effect is poor.

SUMMERY OF THE UTILITY MODEL

For at least one among the above-mentioned technical problem of solution, the utility model provides a multi-disc inserted friction pendulum antidetonation type support, the technical scheme who adopts as follows:

the utility model provides a multi-disc mosaic type friction pendulum anti-seismic support, which comprises an upper support, a middle support, a lower support and a bottom support, wherein the top of the upper support is used for connecting a beam, and the bottom of the upper support is provided with a first concave curved surface; the top of the middle support is provided with a first convex curved surface, the first convex curved surface is connected with the first concave curved surface, and the bottom of the middle support is provided with a second convex curved surface; the top of the lower support is provided with a second concave curved surface, the second concave curved surface is connected with the second convex curved surface, and the bottom of the lower support is provided with a first sliding plane; the top of end support is provided with the second slip plane, first slip plane with the second slip plane is connected, the bottom of end support is used for connecting abutment or pier.

The embodiment of the utility model has the following beneficial effect at least: in the utility model, under the daily working condition, the relative position between the lower support and the upper support is limited and kept unchanged, and the lower support can generate plane friction with the bottom support, so that the received impact energy is consumed, and the beam is prevented from being greatly impacted; under the earthquake condition, when a larger displacement trend exists between the upper support and the lower support, the limit of the upper support and the lower support is released, the relative position between the lower support and the bottom support is limited, a friction pendulum is formed between the middle support and the upper support and between the middle support and the lower support, the impact energy consumed by the friction of the curved surface is consumed, the influence of horizontal sliding of the friction pendulum is avoided, and the shock resistance of the beam is improved.

The utility model discloses an in some embodiments, the edge of first convex surface is located the within range of first concave curved surface, the edge of second convex surface is located the within range of second concave curved surface, well support lateral wall with second concave curved surface be provided with first space of motion between the first concave curved surface.

The utility model discloses an in some embodiments, be provided with the bellying on the end support, the bellying is in the top of end support encloses into second motion space, the bottom of undersetting is located in the second motion space.

The utility model discloses an in some embodiments, the bottom of upper bracket is provided with first limit structure, first limit structure with the lateral wall of undersetting is connected.

The utility model discloses an in some embodiments, be provided with the shear pin on the first limit structure, the shear pin passes first limit structure, the shear pin connect in the upper bracket.

The utility model discloses an in some embodiments, the undersetting lateral wall with be provided with the buffering part between the first limit structure, the undersetting with first limit structure passes through the buffering part is connected.

In some embodiments of the present invention, the bottom side wall of the lower support is provided with a second limiting structure, and the second limiting structure is located the lower support side wall and between the protrusions.

In some embodiments of the present invention, a first friction plate is disposed between the first convex curved surface and the first concave curved surface, the first friction plate includes a plurality of friction units, and the friction units are spliced to form the first friction plate; and a second friction plate is arranged between the second convex curved surface and the second concave curved surface, the second friction plate comprises a plurality of friction units, and the friction units are spliced into the second friction plate.

In some embodiments of the present invention, a third friction plate is disposed between the first sliding plane and the second sliding plane.

The utility model provides a bridge, including foretell antidetonation support.

The embodiment of the utility model has the following beneficial effect at least: in the utility model, the bridge adopts the anti-seismic support, and the anti-seismic support absorbs the impact with smaller strength through plane friction in daily work of the bridge, so as to ensure the structural integrity of the bridge; when an earthquake occurs, the plane friction is limited, and the anti-seismic support absorbs high-strength impact through the curved surface friction of the friction pendulum, so that the plane friction is prevented from influencing the work of the friction pendulum.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural view of a multi-disc embedded friction pendulum anti-seismic support of the present invention;

FIG. 2 is a schematic structural view of a multi-disc embedded friction pendulum anti-seismic support of the present invention;

fig. 3 is a schematic structural view of the first friction plate in the multi-disc inlaid friction pendulum anti-seismic support of the present invention.

Reference numerals:

101. an upper support; 102 a first concave curved surface; 103. a first motion space; 104. a first limit structure; 105. a shear pin;

201. a middle support; 202. a first convex curved surface; 203. a second convex curved surface;

301. a lower support; 302. a second concave curved surface; 303. a first sliding plane; 304. second limit structure

401. A bottom support; 402. a second sliding plane; 403. a boss portion; 404. a second motion space;

501. a friction unit.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout, and which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that if the terms "center", "middle", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate an orientation or positional relationship based on that shown in the drawings, it is only for convenience of description and simplicity of description, and it is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. The features defined as "first" and "second" are used to distinguish feature names rather than having a special meaning, and further, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The anti-seismic support can distinguish and limit daily horizontal sliding and friction pendulum displacement, the work of the curved surface friction pendulum is limited under normal work, the plane friction pendulum is limited during seismic response, and meanwhile, the limiting device participates in work to guarantee the structure safety when the seismic response is large.

As shown in fig. 1 to 2, an embodiment of the present invention provides an anti-seismic support, which includes an upper support 101, a middle support 201, a lower support 301, and a bottom support 401.

The top of the upper bracket 101 is used for connecting a beam to be supported, and specifically, the upper bracket 101 is provided with a first connecting member connecting the beam.

The top of well support 201 is provided with first convex surface 202, and the bottom of upper bracket 101 is provided with first concave spherical surface, and first convex surface 202 is connected with first concave curved surface 102, and when the antidetonation support received great power, well support 201 can produce for upper bracket 101 and slide and form the displacement, and the displacement in-process can cushion external impact, promotes the structural stability of antidetonation support and roof beam. Because the first convex curved surface 202 is in contact with the first concave curved surface 102 and the first convex curved surface 202 is in close contact with the first concave curved surface 102 under the influence of the gravity of the upper support 101, the middle support 201 is subjected to a friction force with a reverse motion direction in the displacement process relative to the upper support 101, a part of impact force is offset, energy is absorbed, and a shock absorption effect is achieved.

Specifically, to ensure smooth sliding between the upper mount 101 and the middle mount 201, the first convex curved surface 202 includes a convex spherical surface, and the first concave curved surface 102 includes a concave spherical surface. The spherical surface is a symmetrical surface, and the resistance received by the sliding of the middle support 201 relative to the upper support 101 in any direction is close to ensure that the anti-seismic support can absorb the impact force in any direction without tendency. Meanwhile, the contact area between the concave spherical surface and the convex spherical surface is large, the generated friction force is large, and the impact force absorption effect is good.

In some examples, the edge of the first convex curve 202 is located within the confines of the first concave curve 102, i.e., the first convex curve 202 is inside the concave portion of the first concave curve 102. Meanwhile, the middle support 201 deviates from the initial position during the relative movement with the upper support 101, and in order to avoid the interference between the edge of the middle support 201 and the adjacent structure, the top edge of the middle support 201 is also located inside the concave portion, which ensures that there is enough space around the middle support 201 during the relative movement with the upper support 101.

As shown in fig. 2, in some examples, a first friction plate is disposed between the first convex curved surface 202 and the first concave curved surface 102, and the first friction plate is used to increase the friction force between the upper support 101 and the middle support 201, so as to avoid wear of the upper support 101 and the middle support 201. The first friction plate may be disposed on the first convex curved surface 202, or the first friction plate may be disposed on the first concave curved surface 102. It can be understood that the shape of the first friction plate is adapted to the first convex curved surface 202 and the first concave curved surface 102, and when the first convex curved surface 202 and the first concave curved surface 102 are spherical surfaces, the working surface of the first friction plate is spherical.

Specifically, for convenience of installation and manufacture, the first friction plate is formed by splicing multiple plates, the first friction plate comprises multiple friction units 501, and the multiple friction plates are spliced to form the first friction plate integrally, so that the first friction plate has a better fit degree, and the internal stress of the first friction plate caused by the fact that the first friction plate is fitted with a spherical surface is reduced.

The top of lower carriage 301 is provided with second concave curved surface 302, and the bottom of well support 201 is provided with second convex curved surface 203, and second convex curved surface 203 can slide on second concave curved surface 302, can produce relative motion between messenger well support 201 and the end support 401, produces the friction between support 201 and end support 401 in the relative motion in-process, and then further absorbs the impact, guarantees the structural integrity of antidetonation support and roof beam. It is understood that the second concave curved surface 302 is connected with the second convex curved surface 203 in contact, and specifically, the second concave curved surface 302 and the second convex curved surface 203 are spherical surfaces.

In some examples, the edge of the second convex curve 203 is located within the range of the second concave curve 302, i.e., the second convex curve 203 is located within the concave portion of the second concave curve 302. To avoid interference of the edges of the middle support 201 with adjacent structures, the bottom edge of the middle support 201 is also located inside the recessed portion. Specifically, the space between the side wall of the middle support 201 and the first concave curved surface 102 and the space between the side wall of the middle support 201 and the second concave curved surface 302 are combined to form a first motion space 103, the first motion space includes a spherical annular cavity gap, when the anti-seismic support is subjected to a large impact, the middle support 201 slides, one side edge of the middle support 201 moves towards the direction close to the edges of the first concave curved surface 102 and the second concave curved surface 302, the volume of the first motion space 103 at this position is reduced, it can be understood that the volume of the first motion space 103 at the opposite side is correspondingly increased, and the first motion space 103 is the motion space of the middle support 201. During the movement, the top and bottom surfaces of the middle support 201 are rubbed by the curved surfaces to absorb the impact force.

As shown in fig. 3, in some examples, a second friction plate is disposed between the second convex curved surface 203 and the second concave curved surface 302, and the second friction plate is used to increase the friction between the bottom support 401 and the middle support 201, and at the same time, to avoid the abrasion of the bottom support 401 and the middle support 201. The second friction plate may be disposed on the second convex curved surface 203, or the second friction plate may be disposed on the second concave curved surface 302.

Specifically, for ease of installation and manufacture, the second friction plate is in the form of a multi-piece splice, and includes a plurality of friction units 501, which are integrally spliced together to form the second friction plate.

In some examples, the outer diameter of the upper support 101 is larger than that of the lower support 301, the first limit structure 104 is disposed at the bottom of the upper support 101, when the middle support 201 moves as a friction pendulum, the upper support 101 and the lower support 301 move relatively, and the first limit structure 104 is used for limiting the relative movement between the upper support 101 and the lower support 301, so as to ensure that the friction pendulum does not work at this time. It will be appreciated that the first limit stop 104 also limits the movement of the mid-mount 201. Specifically, the first limiting structure 104 is connected with the side wall of the lower support 301. In order to improve the limiting effect of the first limiting structure 104 and limit the relative movement between the upper support 101 and the lower support 301 in all directions, the first limiting structure 104 is arranged around the side wall of the lower support 301 in a circle.

In some examples, the first limit structure 104 is disposed on the upper mount 101 via a shear pin 105, and the shear pin 105 passes through the first limit structure 104 to connect the upper mount 101 from the bottom of the upper mount 101. It will be appreciated that the shear pin 105 is provided with a fastener which secures the connection of the upper support 101 to the first limiting structure 104, whilst preventing the first limiting structure 104 from falling off the upper support 101.

Specifically, when the impact force applied to the anti-seismic support in the normal working process is small, the shear pin 105 fixes the first limiting structure 104 at the bottom of the upper support 101, and because the first limiting structure 104 is connected with the side wall of the lower support 301, the relative movement between the upper support 101 and the lower support 301 is avoided, that is, the friction pendulum does not work. When an earthquake happens, the anti-seismic support bears large impact force, when the impact force is larger than the maximum shearing force which can be borne by the shear pin 105, the shear pin 105 is sheared off, the first limiting structure 104 falls off from the upper support 101, the lower support 301 and the middle support 201 lose the limitation of the first limiting structure 104, and relative motion can be carried out, namely, friction pendulum works. The maximum shear force that can be withstood by the shear pin 105 is determined by the specific seismic capacity.

In some examples, a buffer member is disposed between the side wall of the lower seat 301 and the first limiting structure 104, and when the shock-proof seat is impacted, the buffer member provides a reverse force to absorb the impact. Specifically, the buffer member is disposed on a side wall of the lower support 301, or the buffer member is disposed on the first limiting structure 104. Or, the buffering component includes a first elastic element and a second elastic element, the first elastic element is disposed on the side wall of the lower support 301, the second elastic element is disposed at a position where the first limiting structure 104 contacts the lower support 301, and the first elastic element is connected to the second elastic element. Specifically, the first elastic piece and the second elastic piece are made of rubber materials, durable and capable of playing a role in buffering. At the same time, the cushioning component prevents the lower support 301 from contacting the first limiting structure 104, which may result in structural wear of the anti-seismic support.

Specifically, in order to ensure that the first elastic member and the second elastic member can avoid the abrasion of the lower support 301 and the first limiting structure 104 in any direction, the first elastic member is arranged on the side wall of the lower support 301 for a circle, and meanwhile, the second elastic member is arranged on the inner side of the first limiting structure 104 for a circle.

In some examples, the shock-proof support is subjected to small impact in daily work, the relative movement between the upper support 101 and the lower support 301 is limited, and the lower support 301 and the bottom support 401 can generate relative movement to consume energy generated by the impact and generate friction with the impact direction being opposite.

The bottom support 401 is provided with a protruding portion 403, the protruding portion 403 is used for limiting the movement range of the lower support 301, and the protruding portion 403 is arranged on the top of the bottom support 401. Specifically, the protrusion 403 is located at the top edge of the bottom support 401, and a sufficient space is left between the top end of the protrusion 403 and the first limiting structure 104 to ensure that the lower support 301 is not limited by the first limiting structure 104 when the first limiting structure 104 is separated from the upper support 101. In order to make the convex part 403 limit the movement of the lower support 301 in all directions, the convex part 403 encloses a second movement space 404 at the upper end of the bottom support 401, the second movement space 404 comprises a bottom end of the annular cavity gap lower support 301 and is positioned in the second movement space 404, the second movement space 404 is the movement range of the bottom of the lower support, and when the lower support 301 has a tendency to move out of the second movement space 404, the convex part 403 gives an opposite force to the lower support 301 to prevent the tendency.

In some examples, the bottom sidewall of the lower base 301 is provided with a second limit structure 304, the second limit structure 304 can contact the protrusion 403 to limit the range of motion of the lower base 301, and thus, the second limit structure 304 is disposed between the sidewall of the lower base 301 and the protrusion 403. In order to ensure that the movement of the lower support 301 in all directions can be limited equally, the second limiting structure 304 is disposed at a periphery of the sidewall of the bottom of the lower support 301. When an earthquake occurs, the impact force on the anti-seismic support is large, the lower support 301 and the bottom support 401 generate relative motion under the action of the impact force, meanwhile, a large relative motion trend is generated between the lower support 301 and the upper support 101 until the shear pin 105 is cut off, the first-stage buffering of the shear pin 105 is finished, the middle support 201 starts to work in a friction pendulum mode, and the second-stage buffering is performed due to the friction action in the motion process of the middle support 201. At this time, the lower support 301 contacts the convex part 403 due to the large amplitude movement, so that the movement of the lower support 301 is limited, and the anti-vibration support absorbs energy in the form of swinging of the middle support 201, thereby avoiding the influence of horizontal sliding on the friction swinging.

Specifically, a third contact part is arranged at a position where the protruding part 403 contacts the second limiting structure 304, so that the lower support 301 contacts the third contact part to be limited in movement, and the second limiting structure 304 is prevented from being worn and influenced in limiting effect due to the fact that the protruding part 403 contacts the second limiting structure 304.

The top of the bottom support 401 is provided with a second sliding plane 402, the bottom of the lower support 301 is provided with a first sliding plane 303, the lower support 301 and the bottom support 401 are connected with the second sliding plane 402 through the first sliding plane 303, and when the bottom support 401 and the lower support 301 move relatively, the first sliding plane 303 and the second sliding plane 402 rub with each other, so that energy generated by impact is absorbed. The bottom of the bottom support 401 is connected to an abutment or pier. Specifically, the bottom bracket 401 is provided with a second connection member, which connects the abutment or pier.

In some examples, a third friction plate is disposed between the first sliding plane 303 and the second sliding plane 402, and the third friction plate is disposed on the first sliding plane 303, or the third friction plate is disposed on the second sliding plane 402, and the third friction plate can lift the obstruction received during the relative movement between the lower support 301 and the bottom support 401, so as to absorb the impact energy.

In daily work, the displacement of the bridge structure caused by factors such as temperature change, concrete shrinkage, automobile impact and the like can achieve the effects of dissipating energy and limiting displacement through friction between the lower support 301 and the bottom support 401.

When the horizontal force borne by the support is lower than the horizontal limit shearing force of the shearing pin 105, the support limiting structure can play a limiting role; when the horizontal force borne by the support is higher than the horizontal limit shearing force, the first limiting structure 104 falls off, and the unconstrained free sliding among the upper support 101, the middle support 201 and the lower support 301 is realized in the limiting direction. The plane friction function and the friction pendulum function are independent of each other and do not interfere with each other, and the effects of temperature change, concrete shrinkage displacement and seismic reduction and isolation displacement are excellent.

An embodiment of the utility model provides a bridge, bridge include roof beam, pier, and the pier is connected to the upper bracket 101 top tie-beam of antidetonation support, and the pier is connected to end support 401 bottom, and the bridge absorbs the impact energy who meets the end degree through the plane friction among the antidetonation support under the daily condition. Under the condition of an earthquake, the plane friction part of the anti-seismic support is limited, and the curved surface friction of the friction pendulum is adopted to absorb higher-degree impact energy.

In the description of the present specification, reference to the terms "one embodiment," "some examples," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" or the like, if any, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (9)

1. The utility model provides a multi-disc inserted friction pendulum antidetonation type support which characterized in that includes:

the top of the upper support (101) is used for connecting a beam, and a first concave curved surface (102) is arranged at the bottom of the upper support (101);

the support comprises a middle support (201), wherein a first convex curved surface (202) is arranged at the top of the middle support (201), the first convex curved surface (202) is connected with the first concave curved surface (102), and a second convex curved surface (203) is arranged at the bottom of the middle support (201);

the top of the lower support (301) is provided with a second concave curved surface (302), the second concave curved surface (302) is connected with the second convex curved surface (203), and the bottom of the lower support (301) is provided with a first sliding plane (303);

the bridge structure comprises a bottom support (401), wherein a second sliding plane (402) is arranged at the top of the bottom support (401), the first sliding plane (303) is connected with the second sliding plane (402), and the bottom of the bottom support (401) is used for connecting a bridge abutment or a bridge pier.

2. The multi-piece inlaid friction pendulum anti-seismic support according to claim 1, wherein an edge of the first convex curved surface (202) is located within a range of the first concave curved surface (102), an edge of the second convex curved surface (203) is located within a range of the second concave curved surface (302), and a first motion space (103) is arranged between a side wall of the middle support (201) and the second concave curved surface (302) and the first concave curved surface (102).

3. A multi-piece inlaid friction pendulum anti-seismic support according to claim 1 or 2, characterized in that a protruding portion (403) is arranged on the bottom support (401), the protruding portion (403) surrounds a second movement space (404) at the top of the bottom support (401), and the bottom of the lower support (301) is located in the second movement space (404).

4. A multi-piece inlaid friction pendulum anti-seismic support according to claim 1, characterized in that the bottom of the upper support (101) is provided with a first limiting structure (104), and the first limiting structure (104) is connected with the side wall of the lower support (301).

5. The multi-piece inlaid type friction pendulum earthquake-resistant support according to claim 4, wherein a shear pin (105) is arranged on the first limiting structure (104), the shear pin (105) penetrates through the first limiting structure (104), and the shear pin (105) is connected to the upper support (101).

6. A multi-piece inlaid friction pendulum anti-seismic support according to claim 4, characterized in that a buffer component is arranged between the side wall of the lower support (301) and the first limiting structure (104), and the lower support (301) and the first limiting structure (104) are connected through the buffer component.

7. A multi-piece inlaid friction pendulum earthquake-proof support according to claim 3, characterized in that the bottom side wall of said lower support (301) is provided with a second limiting structure (304), and said second limiting structure (304) is located between the side wall of said lower support (301) and said protruding portion (403).

8. The multi-plate inlaid friction pendulum anti-seismic support according to claim 1, wherein a first friction plate is arranged between the first convex curved surface (202) and the first concave curved surface (102), the first friction plate comprises a plurality of friction units (501), and the friction units (501) are spliced to form the first friction plate; a second friction plate is arranged between the second convex curved surface (203) and the second concave curved surface (302), the second friction plate comprises a plurality of friction units (501), and the friction units (501) are spliced into the second friction plate.

9. A multi-plate mosaic type friction pendulum anti-seismic type support according to claim 1, characterized in that, a third friction plate is arranged between said first sliding plane (303) and said second sliding plane (402).

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