CN111877584A - Disc spring soft steel energy dissipation and shock absorption device with self-resetting function - Google Patents

Abstract

The present invention provides a disc spring mild steel energy dissipation device with self-reset function, comprising a rectangular frame, a loading control, a mild steel energy dissipation device, and a mild steel energy dissipation device arranged in the rectangular frame and distributed on the mild steel energy dissipation device A plurality of recoverable disc spring groups on both sides and sleeved on the loading control; the mild steel energy dissipation device includes a connecting end, and the connecting end is sleeved on the part of the loading control in the rectangular frame, The upper and lower ends of the connecting end are respectively fixed with energy-consuming mild steel, the energy-consuming mild steel is a closed structure with a hollow core, and the end of the energy-consuming mild steel away from the connecting end is connected to the rectangular frame through clamping bolts. Fixed connection. The present invention includes dual systems of self-reset and energy consumption, which can reduce the residual deformation of the structure under small earthquake conditions and increase the comfort of the structure under the action of wind vibration. The present invention can be used for various forms of support structures, as well as existing bridges and frame structures. Reinforcement of node locations.

Description

A kind of disc spring mild steel energy-consuming shock absorption device with self-reset function

technical field

The invention is applied to civil construction structures, in particular to a disk spring mild steel energy-consuming and shock absorbing device with self-resetting function.

Background technique

The traditional seismic design of the structure is to use the seismic resistance of the structure itself to dissipate the seismic input energy. Therefore, in order to control the interstory deformation of the structure under the action of horizontal loads within the specified limit, the beam-column section size is increased to increase the structure. It is not only uneconomical, but also has a certain impact on the practical application of the frame structure, and the main part of the structure will be deformed and damaged greatly under the action of rare earthquakes, resulting in the loss of the structure. Using the function, it cannot continue to be used or restored after the earthquake, resulting in huge economic and property losses.

Recent studies have shown that as a new type of load-bearing energy-dissipating component, the self-resetting energy-dissipating device can not only dissipate the energy input to the structure during the earthquake process, but also maintain the overall bearing capacity of the structure, and at the same time control the residual deformation of the structure after the earthquake. In line with the increasingly developed performance-based seismic design needs, it also has good seismic application potential and prospects. Therefore, a shock absorbing device with self-reset function and energy dissipation capability is developed to form a new type of shock absorbing device with both energy dissipation capability and self-reset capability. By applying the shock absorbing device in various support structures, the It is of great significance to give full play to the advantages of the support structure and to make the structure system can quickly return to the normal state of use after the earthquake.

SUMMARY OF THE INVENTION

According to the above technical problems, a disc spring mild steel energy-dissipating damping device with self-resetting function is provided.

The technical means adopted in the present invention are as follows:

A disc spring mild steel energy dissipation and shock absorption device with self-reset function, comprising a rectangular frame, a loading control penetrating into the rectangular frame, and a mild steel sleeved on the loading control and arranged in the rectangular frame An energy dissipation device and a plurality of recoverable disc spring groups arranged in the rectangular frame and distributed on both sides of the mild steel energy dissipation device and sleeved on the loading control;

The mild steel energy-consuming device includes a connecting end, the connecting end is sleeved on the part of the loading control in the rectangular frame, and the upper and lower ends of the connecting end are respectively fixed with energy-consuming mild steel. The mild steel is a hollow closed structure, and one end of the energy-consuming mild steel away from the connecting end is fixedly connected to the rectangular frame by clamping bolts.

Further, the energy-consuming mild steel is a closed structure surrounded by a rectangular flat plate symmetrically arranged up and down and a curved curved plate symmetrically arranged left and right, which is similar to a racetrack type, and the advantage of such a structure is that multiple The cross-section yields, and the yield area is large to avoid stress concentration and significantly improve its energy dissipation capacity; the rectangular flat plate close to the connecting end is fixedly connected to the connecting end, and the rectangular flat plate far from the connecting end passes through the rectangular frame The clamping bolts are fixedly connected.

Further, the rectangular frame is formed by two constraining side plates disposed up and down and two constraining end plates disposed left and right through bolts.

Further, through holes are symmetrically machined on the two restraining end plates, respectively, and one end of the loading control extending left and right passes through one of the through holes and then enters the other through holes.

Further, the connecting end is in the shape of a rectangular parallelepiped, and a through hole is provided in the middle for the loading control to pass through.

Further, the diameter of the through hole is larger than the diameter of the through hole, the outer diameter of the middle part of the loading control is matched with the through hole, and the two ends of the loading control are respectively machined to match the through hole. The shaft shoulder bulges, and a plurality of the recoverable disc spring groups are arranged between the shaft shoulder bulges and the connecting ends. At this time, the disc spring groups are connected in series with the mild steel energy dissipation device. Linear elastic deformation occurs in the group, and with the linear elastic deformation of the mild steel in a small range, the upper limit of the deformation of the disc spring group is reached under the condition of large earthquake.

The device can be applied to support structures such as single inclined rod, herringbone, K-type, V-type, D-type, etc., and can also be used for joint reinforcement of existing buildings and bridge structures. The recoverable disc spring group of the device forms a recoverable system part, and the recoverable system part can adjust the elastic limit bearing capacity and recoverable displacement of the recoverable system by changing the specification, quantity and installation method of the recoverable disk spring group; The energy dissipation device can change the energy dissipation capacity of the mild steel energy dissipation device by adjusting the material type and the size of the energy dissipation plate; at the same time, the disk spring group displacement limit control can be set between the mild steel energy dissipation device and the disk spring group to ensure that the disk spring group It is connected in parallel with the mild steel energy-consuming device, and the two are deformed synchronously. At this time, the device's recovery system and energy-consuming system will work at the same time.

Working mechanism: Under the condition of series connection, the loading control can recover the linear elastic and recoverable deformation of the disc spring group at a low displacement level, and is accompanied by a small linear elastic deformation of the mild steel; when the displacement reaches the upper limit of the elastic displacement of the recoverable disc spring group, the soft The steel energy dissipation device begins to deform, and as the displacement increases, the mild steel energy dissipation device yields and then yields energy dissipation, absorbing the external input energy; under the parallel condition, the mild steel energy dissipation device and the disc spring group deform synchronously. The device has both recoverable performance and energy consumption capability.

Compared with the prior art, the present invention has the following advantages:

1. The present invention is easy to process, easy to install, and can be installed in the structure as an additional energy-consuming device, and can also be used for post-reinforcement of the existing structure;

2. The invention has a dual system of self-reset and energy consumption, which can reduce the residual deformation of the structure under the condition of small earthquake, and exert the characteristics of multi-section yield of mild steel, large yield area and high energy consumption under the action of large earthquake;

3. The present invention can be used for various forms of support structures, as well as the reinforcement of existing bridge and frame structure node positions, to reduce the damage level and residual deformation of the main components of the structure under the action of earthquake loads.

4. The present invention can stimulate the linear elastic deformation of the recoverable system under the action of wind vibration, improve the shock absorption effect of high-rise buildings under the action of wind loads and the like, and enhance the comfort of the structure;

5. The present invention can adjust parameters such as the disc spring group and the size of the mild steel, and can be adjusted in parallel to ensure that the disc spring and the mild steel play a role at the same time. At this time, the damper can consume energy and have a recoverable function.

Based on the above reasons, the present invention can be widely promoted in the fields of civil engineering structures and the like.

Description of drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

FIG. 1 is a schematic structural diagram of a disc spring mild steel energy-dissipating damping device with self-reset function in a specific embodiment of the present invention.

FIG. 2 is a schematic structural diagram of a mild steel energy consumption device in a specific embodiment of the present invention.

FIG. 3 is a schematic structural diagram of a loading control in a specific embodiment of the present invention.

In the picture: 1. Mild steel energy dissipation device; 2. Recoverable disc spring group; 3. Loading control; 4. Constraining side plate; 5. Constraining end plate; 6. Clamping bolt; 7. Through hole; 8. Rectangle Flat plate; 9. Arc curved plate; 10. Connecting end; 11. Raised shaft shoulder.

Detailed ways

It should be noted that the embodiments of the present invention and the features of the embodiments may be combined with each other under the condition of no conflict. The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is only a part of the embodiments of the present invention, but not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

It should be noted that the terminology used herein is for the purpose of describing specific embodiments only, and is not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural as well, furthermore, it is to be understood that when the terms "comprising" and/or "including" are used in this specification, it indicates that There are features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the invention unless specifically stated otherwise. Meanwhile, it should be understood that, for the convenience of description, the dimensions of various parts shown in the accompanying drawings are not drawn in an actual proportional relationship. Techniques, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the authorized description. In all examples shown and discussed herein, any specific values should be construed as illustrative only and not limiting. Accordingly, other examples of exemplary embodiments may have different values. It should be noted that like numerals and letters refer to like items in the following figures, so once an item is defined in one figure, it does not require further discussion in subsequent figures.

In the description of the present invention, it should be understood that the orientations indicated by orientation words such as "front, rear, top, bottom, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" etc. Or the positional relationship is usually based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and these orientation words do not indicate or imply the indicated device or element unless otherwise stated. It must have a specific orientation or be constructed and operated in a specific orientation, so it should not be construed as a limitation on the scope of protection of the present invention: the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

For ease of description, spatially relative terms, such as "on", "over", "on the surface", "above", etc., may be used herein to describe what is shown in the figures. The spatial positional relationship of one device or feature shown to other devices or features. It should be understood that spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or features would then be oriented "below" or "over" the other devices or features under its device or structure". Thus, the exemplary term "above" can encompass both an orientation of "above" and "below." The device may also be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptions used herein interpreted accordingly.

In addition, it should be noted that the use of words such as "first" and "second" to define components is only for the convenience of distinguishing corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood to limit the scope of protection of the present invention.

As shown in Figures 1 to 3, a disc spring mild steel energy-dissipating damping device with self-reset function includes a rectangular frame, a loading control 3 penetrating into the rectangular frame, sleeved on the loading control 3 and A mild steel energy dissipation device 1 arranged in the rectangular frame and a plurality of recoverable disc springs arranged in the rectangular frame and distributed on both sides of the mild steel energy dissipation device 1 and sleeved on the loading control 3 group 2;

The rectangular frame is formed by two constraining side plates 4 disposed up and down and two constraining end plates 5 disposed left and right through bolts.

The mild steel energy dissipation device 1 includes a connecting end 10 , a through hole 7 extending left and right is provided in the middle of the connecting end 10 , the connecting end 10 is in the shape of a cuboid, and the connecting end 10 is sleeved on the through hole 7 . On the part of the loading control 3 in the rectangular frame, the upper and lower ends of the connecting end 10 are respectively fixed with energy-consuming mild steel, and the energy-consuming mild steel is a rectangular flat plate 8 symmetrically arranged up and down and left and right symmetrical. In the closed structure enclosed by the arc-shaped curved plate 9, the rectangular flat plate 8 close to the connecting end 10 is fixedly connected to the connecting end 10, and the rectangular flat plate 8 far from the connecting end 10 is connected to the connecting end 10. The constraining side plates 4 are fixedly connected by the clamping bolts 6 .

The two constraining end plates 5 are respectively symmetrically machined with through holes, and one end of the loading control 3 extending left and right passes through one of the through holes and then enters into the other of the through holes.

The diameter of the through hole is larger than that of the through hole 7 , the outer diameter of the middle of the loading control 3 is matched with the through hole 7 , and the two ends of the loading control 3 are respectively machined with the same diameter as the through hole. Matching shoulder protrusions 11 , and a plurality of the recoverable disc spring groups 2 are disposed between the shaft shoulder protrusions 11 and the connecting end 10 .

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features thereof can be equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention. scope.

Claims (6)

1. A disc spring soft steel energy dissipation and shock absorption device with a self-resetting function is characterized by comprising a rectangular frame, a loading control part penetrating into the rectangular frame, a soft steel energy dissipation device sleeved on the loading control part and arranged in the rectangular frame, and a plurality of recoverable disc spring groups arranged in the rectangular frame, distributed on two sides of the soft steel energy dissipation device and sleeved on the loading control part;

the soft steel energy dissipation device comprises a connecting end, the connecting end is sleeved on the part, in the rectangular frame, of the loading control part, energy dissipation soft steel is fixed at the upper end and the lower end of the connecting end respectively, the energy dissipation soft steel is of a hollow closed structure, and one end, far away from the connecting end, of the energy dissipation soft steel is fixedly connected with the rectangular frame through a clamping bolt.

2. The disc spring mild steel energy dissipation and shock absorption device with the self-resetting function as claimed in claim 1, wherein the energy dissipation mild steel is a closed structure surrounded by rectangular flat plates symmetrically arranged up and down and arc-shaped curved plates symmetrically arranged left and right, the rectangular flat plate close to the connecting end is fixedly connected with the connecting end, and the rectangular flat plate far away from the connecting end is fixedly connected with the rectangular frame through the clamping bolt.

3. The disc spring mild steel energy dissipation and shock absorption device with the self-resetting function as claimed in claim 1, wherein the rectangular frame is formed by two restraining side plates arranged up and down and two restraining end plates arranged left and right through bolt fixation.

4. The disc spring mild steel energy dissipation and shock absorption device with the self-resetting function as claimed in claim 3, wherein through holes are symmetrically formed in each of the two constraint end plates, and one end of the left and right extending loading control element passes through one of the through holes and then enters the other through hole.

5. The disc spring mild steel energy dissipation and shock absorption device with the self-resetting function as claimed in claim 4, wherein the connecting end is a cuboid, a through hole for the loading control to pass through is formed in the middle of the connecting end, and the through hole extends left and right.

6. The disc spring mild steel energy dissipation and shock absorption device with the self-resetting function as claimed in claim 5, wherein the aperture of the through hole is larger than that of the through hole, the outer diameter of the middle part of the loading control part is matched with the through hole, shaft shoulder protrusions matched with the through hole are respectively machined at two ends of the loading control part, and the plurality of recoverable disc spring sets are arranged between the shaft shoulder protrusions and the connecting ends.

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