CN218881216U - Hierarchical yield energy consumption damper - Google Patents
Hierarchical yield energy consumption damper Download PDFInfo
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- CN218881216U CN218881216U CN202223517788.2U CN202223517788U CN218881216U CN 218881216 U CN218881216 U CN 218881216U CN 202223517788 U CN202223517788 U CN 202223517788U CN 218881216 U CN218881216 U CN 218881216U
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Abstract
The utility model discloses a graded yielding energy-consumption damper, which comprises a first substrate and a second substrate which are arranged in parallel at intervals, and a stop block, a second yielding energy-consumption piece and a first yielding energy-consumption piece which are connected between the first substrate and the second substrate; the stop block is fixed on the second substrate and is provided with a plurality of sawtooth-shaped positioning grooves; the second yielding energy dissipation part comprises a plurality of second energy dissipation metal plates with the same number as the positioning grooves, one end of each second energy dissipation metal plate is fixed with the first substrate, the other end of each second energy dissipation metal plate is inserted into the positioning groove, a movable gap is formed between the end head and the positioning groove, and the section size of the fixed end of each second energy dissipation metal plate and the first substrate is larger than that of the other end of each second energy dissipation metal plate; the first yielding energy dissipation part comprises a plurality of first energy dissipation metal plates which are divided into two groups and symmetrically arranged on two sides of the second yielding energy dissipation part, two ends of each first energy dissipation metal plate are respectively fixed with the first base plate and the second base plate, and the cross section sizes of two ends of each first energy dissipation metal plate are larger than the cross section size of the middle part of each first energy dissipation metal plate.
Description
Technical Field
The utility model relates to a disaster prevention shock attenuation technical field, more specifically the saying so relates to a hierarchical yield energy dissipation damper.
Background
The traditional metal damper has only one yield point, has limitation in practical engineering application, and cannot simultaneously meet the requirements of major earthquake and minor earthquake, for example, the metal damper has larger initial rigidity, the energy dissipation and shock absorption effects of the metal damper can be greatly embodied only under the action of the major earthquake, and the energy dissipation and shock absorption effects of the metal damper are not obvious under the action of frequent minor and minor earthquakes. In order to make metal dampers more effective in protecting structures under multistage earthquakes, new dampers with multiple yield points have been developed in recent years.
However, in the existing graded yield metal damper, the physical multi-yield point effect is not obvious. The energy dissipation capability and fatigue resistance can be improved.
In summary, how to provide a graded yielding energy-consuming damper capable of yielding energy consumption in stages under small, medium and large earthquakes and having superior performance becomes a problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a hierarchical energy consumption attenuator of surging utilizes the clearance of predetermineeing to make hierarchical energy consumption attenuator of surging have two clear yield points, can realize hierarchical energy consumption of surging under the earthquake of different intensity, both can satisfy the little shock energy consumption shock attenuation, also can satisfy the well shake with big shock energy consumption shock attenuation.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a graded yield dissipative damper, comprising: the energy-saving device comprises a first substrate, a second substrate, a stop block, a second yielding energy-consuming part and a first yielding energy-consuming part, wherein the first substrate and the second substrate are arranged in parallel at intervals;
the stop block is fixed on the second substrate and is provided with a plurality of sawtooth-shaped positioning grooves;
the second yielding energy dissipation part comprises a plurality of second energy dissipation metal plates with the same number as that of the positioning grooves, one end of each second energy dissipation metal plate is fixed with the first substrate, the other end of each second energy dissipation metal plate is inserted into the positioning groove, the end of each second energy dissipation metal plate forms a movable gap with the positioning groove, and the cross section size of the fixed end of each second energy dissipation metal plate and the first substrate is larger than that of the other end of each second energy dissipation metal plate;
the first yielding energy dissipation part comprises a plurality of first energy dissipation metal plates, the first energy dissipation metal plates are divided into two groups and are symmetrically arranged on two sides of the second yielding energy dissipation part, two ends of each first energy dissipation metal plate are respectively fixed with the first substrate and the second substrate, and the cross section sizes of two ends of each first energy dissipation metal plate are larger than the cross section size of the middle of each first energy dissipation metal plate.
Preferably, in the above graded yielding energy dissipation damper, the second energy dissipation metal plate includes a bottom plate in a trapezoid plate shape and a top plate in a rectangular plate shape, the top plate is integrally formed on a trapezoid top edge of the bottom plate, a cross section of a rectangular bottom edge of the top plate is the same as a cross section of a trapezoid top edge of the bottom plate, the trapezoid bottom edge of the bottom plate is fixed to the first base plate, and one end of the top plate, which is far away from the bottom plate, is inserted into the positioning groove.
Preferably, in the above graded yield energy-consuming damper, the thickness of the end of the top plate away from the bottom plate is gradually reduced to zero.
Preferably, in the above graded yielding energy-consuming damper, the positioning groove is a linear notch structure.
Preferably, in the above graded yielding energy-consuming damper, two ends of the first energy-consuming metal plate are fixed to the first substrate and the second substrate by welding, fastening locking, or interference fit insertion.
Preferably, in the graded yielding energy dissipation damper, the first energy dissipation metal plate and the second energy dissipation metal plate are both energy dissipation steel plates.
Preferably, in the above graded yielding energy-consuming damper, the first substrate and the second substrate are provided with a plurality of bolt connecting holes.
Can know via foretell technical scheme, compare with prior art, the utility model discloses a hierarchical energy consumption attenuator of surging has following beneficial effect:
1. the graded yield energy dissipation damper can be used as a prefabricated whole, and can be conveniently and quickly integrally applied to energy dissipation and shock absorption buildings, such as a frame supporting structure of the shock absorption building or a concrete embedded part.
2. The utility model discloses with first power consumption metal sheet symmetrical arrangement in second yield power consumption spare both sides, improved holistic stability.
3. The utility model discloses the one end that is close to whole second power consumption metal sheet roof and second base plate is zero at a section within range thickness tapering, when having avoided taking place to surrender with the friction and the collision of constant head tank inner wall.
4. The utility model discloses the cross sectional dimension at first power consumption metal sheet both ends is greater than middle cross sectional dimension, and the cross sectional dimension of second power consumption metal sheet bottom is greater than the cross sectional dimension on top, and such design can let the component all reach the yield at every cross-section of during operation, has improved the power consumption ability and the fatigue resistance ability of structure.
5. The utility model discloses different relation of connection based on first energy consumption piece and the second energy consumption piece of surging, first energy consumption piece and the second of surging take place the yielding deformation when the first base plate and the second base plate of this hierarchical surging attenuator produce different relative positions respectively, only first energy consumption piece of surging gets into the yielding deformation stage when the little shake promptly, first energy consumption piece and the second of surging all get into the yielding deformation stage when well big shake, realize surging according to the class stage yield of focus grade, reach the effect of obviously surging stage by stage, satisfy the absorbing purpose of multistage energy dissipation.
6. The utility model discloses utilize the clearance of predetermineeing between second power consumption metal sheet and the dog, make the utility model discloses have two clear yield points at the during operation, can realize the hierarchical energy dissipation of surging under the different intensity earthquakes, this be selective through the adjustment power consumption steel sheet size parameter and with the dog between the clearance distance, realize the power consumption of surging under different seismic intensity.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural view of a graded yielding energy-consuming damper provided by the present invention;
fig. 2 is a schematic structural diagram of a first energy dissipation metal plate provided by the present invention;
fig. 3 is a schematic structural diagram of a second energy consumption metal plate according to the present invention.
Wherein:
1-a first substrate; 2-a second substrate; 3-a first yielding energy dissipating member; 31-a first energy dissipating metal plate; 4-a second yielding energy dissipating piece; 41-a second energy dissipating metal plate; 411-a backplane; 412-a top plate; 5-a stop block.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
Referring to fig. 1 to fig. 3, the embodiment of the utility model discloses a hierarchical energy consumption attenuator of surging, include: the energy-dissipating device comprises a first substrate 1 and a second substrate 2 which are arranged in parallel at intervals, and a stop block 5, a second yielding energy-dissipating member 4 and a first yielding energy-dissipating member 3 which are connected between the first substrate 1 and the second substrate 2;
the stop block 5 is fixed on the second substrate 2 and is provided with a plurality of sawtooth-shaped positioning grooves;
the second yielding energy dissipation member 4 comprises a plurality of second energy dissipation metal plates 41 with the same number as the positioning grooves, one end of each second energy dissipation metal plate 41 is fixed with the first substrate 1, the other end of each second energy dissipation metal plate is inserted into the positioning groove, a movable gap is formed between the end of each second energy dissipation metal plate 41 and the positioning groove, and the cross section size of the fixed end of the first substrate 1 is larger than that of the other end of each second energy dissipation metal plate 41;
the first yielding energy dissipation member 3 comprises a plurality of first energy dissipation metal plates 31, the plurality of first energy dissipation metal plates 31 are divided into two groups and are symmetrically arranged on two sides of the second yielding energy dissipation member 4, two ends of each first energy dissipation metal plate 31 are respectively fixed with the first substrate 1 and the second substrate 2, and the cross-sectional dimension of each end of each first energy dissipation metal plate 31 is larger than that of the middle of the first energy dissipation metal plate.
In this embodiment: first base plate 1 and second base plate 2 are used for connecting in treating shock attenuation antidetonation construction facilities or place, for example are fixed in treating between the support column or the built-in fitting in the shock attenuation place through fasteners such as bolt, and correspondingly, first base plate 1 and second base plate 2 can open and establish a plurality of connecting holes that are used for supplying the bolt to penetrate.
Two ends of the first yielding energy dissipation member 3 are respectively and fixedly connected with the first substrate 1 and the second substrate 2, which is equivalent to a fixed beam between the first substrate 1 and the second substrate 2. According to the material of the first yielding energy dissipation member 3, the two end parts of the first yielding energy dissipation member 3 can be fixedly connected through welding, fastening piece locking, interference assembly and other modes.
One end of each of the second energy dissipation metal plates 41 is fixedly connected to the first substrate 1, the other end is adjacent to and suspended in the second substrate 2, and the thickness of the end close to the second substrate 2 is gradually reduced to zero within a range, so that the end is completely changed into a stressed state of a cantilever beam. According to a bending moment diagram of the cantilever beam, the bottom plate 411 is in a trapezoid plate shape, the top plate 412 is in a rectangular plate shape, each cross section can be yielded when the cantilever beam works, and the deformation capacity, the energy consumption capacity and the fatigue resistance performance of the structure are improved.
The lower part of the block 5 is cut into a groove shape to form a plurality of positioning grooves for restricting the swing range of the top plate 412. It is apparent that the inner wall pitch of any one of the positioning grooves is greater than the radial dimension of the top plate 412 so as to provide a sufficient swing space for the top plate 412.
When the second yielding energy dissipation member 4 is subjected to external vibration through the first substrate 1 and the second substrate 2, the top plate 412 swings between the positioning grooves. With the enhancement of the external vibration, the swing amplitude of the top plate 412 increases until the top plate contacts with the side wall of the positioning groove, and the positioning groove and the first substrate 1 apply stress to the second yielding energy dissipation member 4, so that the second yielding energy dissipation member 4 is bent and deformed.
The materials of the first yielding energy dissipation part 3 and the second yielding energy dissipation part 4 include, but are not limited to, metal materials, and are specifically set according to the use occasion and the use condition of the graded yielding energy dissipation damper.
When this hierarchical surrender attenuator was installed in treating the shock attenuation place, if treat when the shock attenuation place in the emergence small earthquake, external vibration acted on first surrender power consumption piece 3 and second surrender power consumption piece 4 through first base plate 1 and second base plate 2.
Based on different connection relations between the first yielding energy consumption piece 3 and the second yielding energy consumption piece 4, when a small shock occurs outside and the stress acted on the first yielding energy consumption piece 3 from the outside exceeds the elastic limit of the first yielding energy consumption piece 3, the first yielding energy consumption piece 3 deforms in a yielding way, so that the energy of an external seismic source is consumed. At this time, the stress transmitted from the outside to the second yielding energy dissipation member 4 is not enough to make the second yielding energy dissipation member 4 in the yielding deformation stage, so that the second yielding energy dissipation member 4 is in the elastic stage during a small earthquake, and the top plate 412 of the second yielding energy dissipation member 4 swings between the gaps of the positioning grooves. When the middle earthquake and the large earthquake occur outside, the stress transmitted from the outside to the second yielding energy consumption piece 4 is greater than the elastic limit of the second yielding energy consumption piece 4, at the moment, the second yielding energy consumption piece 4 enters a yielding deformation stage in addition to the bending deformation of the first yielding energy consumption piece 3, and the energy of an external seismic source is consumed through the bending deformation. In this embodiment, it can be seen that the first yielding energy dissipation member 3 and the second yielding energy dissipation member 4 achieve graded yielding energy dissipation based on different connection relationships between the first substrate 1 and the second substrate 2, and have obvious graded yielding energy dissipation effects.
It should be noted that the above definitions of minor earthquakes, medium earthquakes and major earthquakes can refer to the conventional definitions in the art.
To sum up, this utility model discloses a two kinds of yield energy consumption components that have different relation of connection combine to above-mentioned hierarchical yield attenuator, based on the different relation of connection of first yield energy consumption piece 3 and second yield energy consumption piece 4, first base plate 1 and second base plate 2 produce different relative displacement under the seismic source of different grades and make the two take place respectively yielding deformation for this hierarchical yield attenuator has good staged yield ability to the difference of seismic source grade, can satisfy the absorbing purpose of multistage energy dissipation, but wide application in all kinds of earthquake-resistant building structure field.
The present invention provides a graded yielding energy-consuming damper, which is further described below with reference to the accompanying drawings and embodiments.
On the basis of the above embodiment, considering that the second yielding energy dissipation member 4 is installed between the first substrate 1 and the second substrate 2 in a cantilever beam structure, based on this arrangement, when the positioning groove inside the stopper 5 applies stress to the second yielding energy dissipation member 4, the bending moment applied to the second yielding energy dissipation member 4 gradually increases from the top plate 412 to the bottom plate 411 of the second yielding energy dissipation member 4, and therefore, the cross-sectional size of the bottom plate 411 of the second yielding energy dissipation member 4 is greater than that of the top plate 412, so that the components can yield at the same time when stressed, which is beneficial to improving the deformation capability and yielding energy dissipation effect of the second yielding energy dissipation member 4, and enhancing the fatigue resistance of the structure.
To the utility model discloses the second that adopts yields power consumption piece 4 can include a plurality of second power consumption metal sheets 41. All the second dissipative metal plates 41 can be arranged between the first substrate 1 and the second substrate 2 side by side, and two adjacent second dissipative metal plates 41 are spaced in parallel and mainly play a dissipative role under the action of a large shock. The specific number of the second energy dissipation metal plates 41 can be analyzed and set according to specific requirements of different engineering operations on the bearing capacity, the energy dissipation condition and the like of the graded yielding damper.
The cross-sectional size of the bottom plate 411 of any one of the second dissipative metal plates 41 is larger than the cross-sectional size of the top plate 412. The thickness of the top plate 412 and the end of the second substrate 2 close to each other is gradually reduced to zero within a range, so that collision and friction between the second energy dissipation metal plate 41 and the positioning groove during yield deformation are avoided, and the yield energy dissipation effect of the second energy dissipation metal plate 41 is improved.
In order to achieve a better technical effect, all the second dissipative metal plates 41 are dispersedly inserted and suspended in separate positioning grooves, and any one of the second dissipative metal plates 41 is not in contact with a positioning groove; compared with the design that the top plates 412 of the second energy consumption metal plates 41 are connected through the connecting blocks, the design avoids the fracture of the lower edge of the top of the triangular energy consumption steel plate connected with the rectangular connecting blocks during yielding energy consumption, and the lower edge is completely in a stress state of a cantilever beam, so that the deformation capacity, the energy consumption capacity and the fatigue resistance are improved.
To the utility model discloses a first yield power consumption piece 3 that adopts can include a plurality of first power consumption metal sheets 31. The first dissipative metal plate 31 may be vertically connected between the first substrate 1 and the second substrate 2, and dissipate energy transferred from the first substrate 1 and the second substrate 2 by bending deformation.
The number of the first energy dissipation metal plates 31 can be set to be a plurality of, and all the first energy dissipation metal plates 31 are distributed in parallel at intervals and are symmetrically arranged on two sides of the second yielding energy dissipation part 4, so that the overall stability is improved.
The specific number of the first dissipative metal plates 31 can be calculated according to the specific situations of the bearing capacity, the dissipative situation and the like of the first yielding dissipative element 3 in the engineering example.
The first dissipative metal plate 31 can be provided as, for example, an X-shaped steel plate. Referring to fig. 2, fig. 2 is a schematic structural diagram of a first energy dissipation metal plate 31 according to an embodiment of the present invention. The thickness of any one of the first dissipative metal plates 31 is uniform from top to bottom, and the cross-sectional dimensions of both ends are larger than the cross-sectional dimension of the middle portion. This structure is adapted to the stress distribution of the first dissipative metal plate 31, which is beneficial to improving the yield dissipative effect of the first dissipative metal plate 31.
In each embodiment provided by the utility model, the inner surface of the second substrate 2 is fixedly provided with a stop block 5, and the stop block 5 is cut into a tooth socket shape to form a plurality of linear channels; all the second dissipative metal plates 41 are dispersedly inserted and suspended in separate positioning grooves, and any second dissipative metal plate 41 is not in contact with the positioning groove. When the top plate 412 of the second dissipative metal plate 41 is still or the swing amplitude does not exceed the constraint range of the positioning groove, the second dissipative metal plate 41 does not elastically yield due to the relative displacement of the first substrate 1 and the second substrate 2, and at this time, the stepped yielding damper only allows the first yielding dissipative element 3 to participate in energy dissipation and shock absorption. When the swing amplitude of the top plate 412 of the second energy dissipation metal plate 41 is increased to exceed the restraint range of the positioning groove along with the increase of the seismic source grade, the second yielding energy dissipation part 4 is deformed and yielded besides the first yielding energy dissipation part 3, and the second yielding energy dissipation part participates in energy dissipation and shock absorption.
The positioning groove is preferably a linear channel, and the inner wall of the linear channel is used to restrict the swing range of the second end of the second dissipative metal plate 41.
The utility model provides an in hierarchical surrender attenuator mainly is applied to energy dissipation damper building, can confirm first power consumption metal sheet 31 and the concrete quantity of second power consumption metal sheet 41 to this hierarchical bearing capacity and the shock attenuation demand of surrendering the attenuator according to energy dissipation damper building. The graded yield energy-consumption damper can be used as a prefabricated whole and can be conveniently and quickly integrally applied to engineering examples, such as being installed in a frame supporting structure of a shock-absorbing building or being installed in a concrete embedded part. When a small earthquake occurs, the second energy dissipation metal plates 41 swing in the positioning grooves and are in an elastic state, so that only the first energy dissipation metal plates 31 consume earthquake energy; when a medium earthquake, a large earthquake and a rare earthquake occur, the swing amplitude of the second energy dissipation plates 41 reaches the limit of the gap of the positioning groove, and the second energy dissipation plates are blocked by the inner wall of the positioning groove and simultaneously undergo bending deformation, so that the second energy dissipation plates and the first energy dissipation metal plate 31 consume earthquake energy together, and the effect of obviously yielding in stages is achieved.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A graded yield dissipative damper, comprising: the energy-saving device comprises a first substrate (1) and a second substrate (2) which are arranged in parallel at intervals, and a stop block (5), a second yielding energy-consuming part (4) and a first yielding energy-consuming part (3) which are connected between the first substrate (1) and the second substrate (2);
the stop block (5) is fixed on the second substrate (2) and is provided with a plurality of sawtooth-shaped positioning grooves;
the second yielding energy dissipation part (4) comprises a plurality of second energy dissipation metal plates (41) with the same number as the positioning grooves, one end of each second energy dissipation metal plate (41) is fixed with the first substrate (1), the other end of each second energy dissipation metal plate is inserted into the positioning groove, an end head and the positioning groove form a movable gap, and the cross section size of the fixed end of each second energy dissipation metal plate (41) and the first substrate (1) is larger than that of the other end of each second energy dissipation metal plate;
the first yielding energy dissipation part (3) comprises a plurality of first energy dissipation metal plates (31), the first energy dissipation metal plates (31) are divided into two groups and are symmetrically arranged on two sides of the second yielding energy dissipation part (4), two ends of each first energy dissipation metal plate (31) are respectively fixed with the first base plate (1) and the second base plate (2), and the cross-sectional sizes of two ends of each first energy dissipation metal plate (31) are larger than that of the middle of each first energy dissipation metal plate.
2. A graded yield energy-consuming damper according to claim 1, wherein the second energy-consuming metal plate (41) comprises a bottom plate (411) in the shape of a trapezoid plate and a top plate (412) in the shape of a rectangular plate, the top plate (412) is integrally formed on the top side of the trapezoid of the bottom plate (411), the cross section of the bottom side of the rectangle of the top plate (412) is the same as the cross section of the top side of the trapezoid of the bottom plate (411), the bottom side of the trapezoid of the bottom plate (411) is fixed to the first base plate (1), and the end of the top plate (412) far away from the bottom plate (411) is inserted into the positioning slot.
3. A graded yield dissipative damper according to claim 2, characterized in that the end of the top plate (412) remote from the bottom plate (411) tapers to zero thickness.
4. The progressive yield energy consuming damper of claim 1, wherein the positioning slot is a linear slot configuration.
5. A graded yield energy-consuming damper according to claim 1, wherein both ends of the first energy-consuming metal plate (31) are fixed to the first base plate (1) and the second base plate (2) by welding, fastener-locking connection, or interference fit insertion.
6. A graded yield dissipative damper according to claim 1, wherein the first dissipative metal plate (31) and the second dissipative metal plate (41) are both dissipative steel plates.
7. The graded yield energy consumption damper according to claim 1, wherein the first base plate (1) and the second base plate (2) are provided with a plurality of bolt connecting holes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202223517788.2U CN218881216U (en) | 2022-12-28 | 2022-12-28 | Hierarchical yield energy consumption damper |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202223517788.2U CN218881216U (en) | 2022-12-28 | 2022-12-28 | Hierarchical yield energy consumption damper |
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| CN218881216U true CN218881216U (en) | 2023-04-18 |
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