CN108867916A - A kind of spiral energy-dissipating and shock-absorbing constraint support device and preparation method thereof - Google Patents
A kind of spiral energy-dissipating and shock-absorbing constraint support device and preparation method thereof Download PDFInfo
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- CN108867916A CN108867916A CN201810953282.5A CN201810953282A CN108867916A CN 108867916 A CN108867916 A CN 108867916A CN 201810953282 A CN201810953282 A CN 201810953282A CN 108867916 A CN108867916 A CN 108867916A
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- China
- Prior art keywords
- core rod
- internal core
- inner sleeve
- sleeve
- outer sleeve
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
Abstract
The present invention relates to the technical fields of building damping, especially a kind of spiral energy-dissipating and shock-absorbing constraint support device and preparation method thereof, including outer sleeve, inner sleeve, first internal core rod and the second internal core rod, the inner sleeve is co-axially located in the outer sleeve, first internal core rod and second internal core rod match the insertion corresponding end of inner sleeve by screw thread respectively, the thread rotary orientation that first internal core rod and inner sleeve are formed is opposite with the thread rotary orientation that the second internal core rod and inner sleeve are formed, first internal core rod and the second internal core rod move toward one another in inner sleeve or backwards to movements.When under tension or pressure; inner sleeve and the setting of internal core rod thread rotary orientation; first internal core rod and the second internal core rod are rotated in inner sleeve; inner sleeve also forms rotation in outer sleeve simultaneously; to earthquake energy; the setting of outer sleeve protects the normal operation of internal structure, while also avoiding the destruction to extraneous building structure.
Description
Technical field
The present invention relates to the technical field of building damping, especially a kind of spiral energy-dissipating and shock-absorbing constraint support device and its
Production method.
Background technique
China has a vast territory, but many large- and-medium size cities are all in seismic region.The building for being built in seismic region will
Consider the anti-seismic performance of structure.In steel construction or reinforced concrete structure use process, common support compression can generate in the wrong
Qu Xianxiang, after supporting compressive buckling, rigidity and bearing capacity are drastically reduced.Under earthquake or wind action, the internal force of support exists
It is pressurized and back and forth changes under tension two states.When support gradually fades to tension state by the state of buckling, the internal force of support with
And rigidity is close to zero.Thus common support Hysteresis Behavior under course under cyclic loading is poor.
The anti-buckling support system of frame is obtained for the novel forms of skyscraper Lateral Resistant System in recent years as a kind of
Using.Caused whole anti-side rigidity is insufficient after the application of anti-buckling support improves traditional support system compression support buckling
Problem, but traditional anti-buckling support yield displacement is larger, when being arranged in concrete structure or steel concrete mixed structure,
It is difficult to that surrender and the seismic energy that dissipates occurs first before concrete component cracks.In addition, in practical applications, traditional is anti-
Buckling support be there is a problem that certain：（1）It is anti-buckling to be supported on stress performance that there is tension and compression asymmetry, mainly by
It is acted in outer confining part participation, core surrender element bearing capacity is caused to rise；（2）The neck of component is surrendered (without about in core
Beam part) it is easy to happen local buckling, cause anti-buckling support to be failed.
Summary of the invention
The technical problem to be solved by the present invention is to：In order to solve the problems, such as above-mentioned background technique, a kind of spiral shell is provided
Rotating energy-dissipating and shock-absorbing constraint support device and preparation method thereof, earthquake energy avoids the destruction to extraneous building structure.
The technical solution adopted by the present invention to solve the technical problems is：A kind of spiral energy-dissipating and shock-absorbing constraint support dress
It sets, including outer sleeve, inner sleeve, the first internal core rod and the second internal core rod, the inner sleeve is co-axially located at described outer
In sleeve, first internal core rod and second internal core rod match insertion inner sleeve by screw thread respectively and hold accordingly
Portion, the thread rotary orientation of thread rotary orientation and the second internal core rod and the inner sleeve formation that the first internal core rod and inner sleeve are formed is on the contrary, the
One internal core rod and the second internal core rod move toward one another in inner sleeve or backwards to movements.
Further specifically, in above-mentioned technical proposal, first internal core rod and second internal core rod are stretched out
The both ends of the inner sleeve are also respectively provided with rotating end, and the rotating end setting is in internal core rod and external beam column structure
Part between the two, alternatively, rotating end setting internal core rod and external node between the two.
Further specifically, in above-mentioned technical proposal, the rotating end include connection board, swivel bearing and
Inner termination, the end that the internal core rod stretches out the inner sleeve are fixedly connected with one end of the inner termination, inner termination
The other end connect by the swivel bearing with the external end head of the connection board, the other end of connection board is fixed on
On the external beam column component or the external node.
Further specifically, the outer sleeve cuts be formed with receiving in a thickness direction in above-mentioned technical proposal
First groove of the inner sleeve is also opened on the side perpendicular to the first groove described in outer sleeve length direction and formation
Equipped with the second groove for preventing inner sleeve from skidding off out of outer sleeve, circle sliding steel ball, institute are provided in second groove
The sliding steel ball setting stated inner sleeve and outer sleeve between the two.
Further specifically, in above-mentioned technical proposal, the outer sleeve from central axes most nearby with a distance from and inner sleeve
Screw thread is from outer sleeve central axes most being equidistant nearby on cylinder, have between the lateral wall of inner sleeve and the inner sidewall of outer sleeve away from
From.
Further specifically, the center position in the outer sleeve length direction is provided in above-mentioned technical proposal
Oil filler point is provided with the leakage-proof structure for preventing the lubricating oil of injection from leaking out on the oil filler point.
Further specifically, in above-mentioned technical proposal, it is provided on the inner sleeve and multiple facilitates lubricating oil flow
Hole.
Further specifically, first internal core rod and second internal core rod are in institute in above-mentioned technical proposal
There is distance in opposite end face in the inner sleeve stated, and thread rotary orientation of the inner sleeve from middle part to two sides is opposite.
Further specifically, in above-mentioned technical proposal, the thread pitch of first internal core rod, in described second
The thread pitch of the thread pitch of core bar and the inner sleeve is setting value.
A method of spiral energy-dissipating and shock-absorbing constraint support device is made, is specifically comprised the following steps：
Step 1：Make outer sleeve, inner sleeve, the first internal core rod, the second internal core rod, inner termination, external end head, swivel bearing, company
End plate and sliding steel ball are connect, first internal core rod is identical with the second internal core rod specification, and the outer sleeve exists
Deviate and disconnected at its medium position, the middle part of the inner sleeve and the middle part of outer sleeve are equipped with oil filler point；
Step 2：First internal core rod and second internal core rod are fitted into the inner sleeve, outside described
Sleeve covers on inner sleeve, while being packed into the sliding steel ball, and outer sleeve stitching portion passes through plane mouth welding；
Step 3：The inner termination is welded in internal core rod, the external end head is welded in the connection board,
Connection board is connect with external beam column component, alternatively, connection board is connect with external node, other the two of inner termination and external end head
End rotates connection by the swivel bearing.
The beneficial effects of the invention are as follows：A kind of spiral energy-dissipating and shock-absorbing constraint support device provided by the invention and its production
Method has the following advantages that：
One, when under tension or pressure, inner sleeve and the setting of internal core rod thread rotary orientation, the first internal core rod and the second internal core rod exist
Inner sleeve rotation, while inner sleeve also forms rotation in outer sleeve, thus earthquake energy, the setting of outer sleeve is protected
The normal operation of internal structure, while also avoiding the destruction to extraneous building structure；
Two, inner sleeve and when internal core rod stress, can relatively rotate, although rotation is mainly inner sleeve, internal core rod is still
It will receive certain torsion, the setting of rotating end can allow internal core rod to turn with external beam column component or external node
It is dynamic；
Three, sliding steel ball can make inner sleeve preferably rotate in outer sleeve, and the setting of the first groove and the second groove is
In order to guarantee that inner sleeve and sliding steel ball will not come out inside outer sleeve；
Four, the position between inner sleeve and outer sleeve can reduce the friction between inner sleeve and outer sleeve, and internal core rod and
For inner sleeve stress when a certain range deforms, outer sleeve is undeformed；
Five, by the oil filler point on outer sleeve to injecting lubricating oil inside it, so that the frictional force of each component in outer sleeve is reduced,
And multiple holes for facilitating lubricating oil flow are provided on inner sleeve so that lubricating oil preferably enter inner sleeve with it is interior
Friction zone between core bar；
Six, when constraint support is under pressure, the first internal core rod and the second internal core rod the opposite end face of inner sleeve have setting away from
From to movement offer space in the middle part of inner sleeve, which carries according to seismic stiffness, surrender for the first internal core rod and the second internal core rod
Power, yield displacement, constraint support the intensity of each component to determine distance；
Seven, the thread pitch of the thread pitch of the first internal core rod, the thread pitch of the second internal core rod and inner sleeve is setting
Value, screw pitch are also a factor for influencing entirely to constrain the seismic stiffness of support, energy dissipation capacity；
Eight, the production method for constraining support device is simple, since the first internal core rod is identical with the second inner core rod structure, is being pressed
In the case where power or pulling force, inner sleeve or outer sleeve are easy to deform since middle part, so the section of outer sleeve is arranged inclined
Position from middle part can also ensure the seismic stiffness for constraining support device facilitating in this way in the case where installation.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The some embodiments recorded in application, for those of ordinary skill in the art, without creative efforts,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of spiral energy-dissipating and shock-absorbing constraint support device of the invention.
In attached drawing marked as：11, the first internal core rod；12, the second internal core rod；121, inner termination；2, outer sleeve；21,
One groove；22, the second groove；23, oil filler point；24, leakage-proof structure；3, inner sleeve；4, steel ball is slided；5, swivel bearing；6, even
Connect end plate；61, external end head.
Specific embodiment
In order to which the technical problems, technical solutions and beneficial effects solved by the present invention is more clearly understood, below in conjunction with
Accompanying drawings and embodiments, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used
To explain the present invention, it is not intended to limit the present invention.
See Fig. 1, a kind of spiral energy-dissipating and shock-absorbing constraint support device, including outer sleeve 2, inner sleeve 3, the first internal core rod 11
And second internal core rod 12, inner sleeve 3 are co-axially located in outer sleeve 2, the first internal core rod 11 passes through screw thread matching insertion inner sleeve
The left part of cylinder 3, the second internal core rod 12 match the right part of insertion inner sleeve 3, the first internal core rod 11 and inner sleeve 3 by screw thread
The thread rotary orientation that the thread rotary orientation of formation and the second internal core rod 12 and inner sleeve 3 are formed is on the contrary, in the first internal core rod 11 and second
Core bar 12 moves toward one another in inner sleeve 3 or backwards to movement.First internal core rod 11 and the second internal core rod 12 stretch out the two of inner sleeve 3
End is also respectively provided with rotating end, rotating end setting internal core rod and external beam column component between the two, alternatively, round end
Head setting internal core rod and external node between the two.Constraint support device and external beam column component are connected to form a whole,
Alternatively, constraint support device and external node are connected to form a whole, to meet the requirement that structure increases anti-side rigidity.
Rotating end includes connection board 6, swivel bearing 5 and inner termination 121, and internal core rod stretches out the end of inner sleeve 3
It is fixedly connected with one end of inner termination 121, the other end of inner termination 121 passes through the external end head 61 of swivel bearing 5 and connection board 6
Connection, the other end of connection board 6 are fixed on external beam column component or external node.Wherein, inner termination 121 and external end head 61
Concave-convex bayonet is formed, swivel bearing 5 is stuck in the inside of bayonet, to guarantee that internal core rod freely turns relative to connection board 6
It is dynamic.
Outer sleeve 2 cuts the first groove 21 for being formed with and accommodating inner sleeve 3 in a thickness direction, perpendicular to outer sleeve 2
The second groove for preventing inner sleeve 3 from skidding off out of outer sleeve 2 is also provided on the side of length direction and the first groove 21 of formation
22, be provided with circle sliding steel ball 4 in the second groove 22, the setting of sliding steel ball 4 inner sleeve 3 and outer sleeve 2 between the two.When
When internal core rod radial motion, inner sleeve 3 is rotated, so that spiral energy-dissipating and shock-absorbing buckling restrained brace device be made to generate flexible position
It moves, meets malformation requirement.
Outer sleeve 2 from central axes most nearby with a distance from screw thread on inner sleeve 3 from 2 central axes of outer sleeve most nearby with a distance from
It is equal, there is distance between the lateral wall of inner sleeve 3 and the inner sidewall of outer sleeve 2.To reduce between inner sleeve 3 and outer sleeve 2
Frictional force.
The center position of 2 length direction of outer sleeve is provided with oil filler point 23, and being provided on oil filler point 23 prevents injection
The leakage-proof structure 24 that lubricating oil leaks out.Multiple holes for facilitating lubricating oil flow are provided on inner sleeve 3.Wherein, leakage-proof structure
24 be bolt stopple, and the lubricating oil injected into oil filler point 23 generates a large amount of when preventing inner sleeve 3 relative to internal core rod rotation
Heat and reduce stiffness.
There are a distance in first internal core rod 11 and the second internal core rod 12 end face opposite in inner sleeve 3, inner sleeve 3 from middle part to
The thread rotary orientation of two sides is opposite.When under tension or pressure, can radial motion make inner sleeve 3 rotate, to consume
Seismic energy.
The thread pitch of the thread pitch of first internal core rod 11, the thread pitch of the second internal core rod 12 and inner sleeve 3 is equal
For setting value.Wherein, the screw thread of the thread pitch of the first internal core rod 11, the thread pitch of the second internal core rod 12 and inner sleeve 3
Screw pitch is 30mm.
A method of spiral energy-dissipating and shock-absorbing constraint support device is made, is specifically comprised the following steps：
Step 1：According to building structure size and requirements for fortification against earthquake, spiral energy-dissipating and shock-absorbing buckling restrained brace device is determined
Design size, production outer sleeve 2, inner sleeve 3, the first internal core rod 11, the second internal core rod 12, inner termination 121, external end head 61,
Swivel bearing 5, connection board 6 and sliding steel ball 4, the first internal core rod 11 is identical with 12 specification of the second internal core rod, and outer sleeve 2 exists
Deviate at its medium position disconnect, i.e., at the position apart from 2 one end one third of outer sleeve disconnect, the middle part of inner sleeve 3 and
The middle part of outer sleeve 2 is equipped with oil filler point 23；
Step 2：First internal core rod 11 and the second internal core rod 12 are fitted into inner sleeve 3, by 2 sets of outer sleeve on inner sleeve 3,
It is packed into sliding steel ball 4 simultaneously, for 2 stitching portion of outer sleeve by plane mouth welding, weld grinding is smooth；
Step 3：Inner termination 121 is welded in internal core rod, external end head 61 is welded in connection board 6, connection board 6 with
External beam column component connection, alternatively, connection board 6 is connect with external node, the other both ends of inner termination 121 and external end head 61 are logical
Cross the rotation connection of swivel bearing 5.
In use, internally injecting a certain amount of lubricating oil by oil filler point 23, blending bolt stopple seals outer sleeve
Oil filler point 23.
The method of the present invention realizes the batch production of product, can significantly improve production efficiency, substantially reduce production cost.
The connection board of spiral energy-dissipating and shock-absorbing buckling restrained brace is changed to be installed with bolt from traditional welding, inspection easy to disassemble,
There are also enhance beautiful effect simultaneously.
It is above-described, it is merely preferred embodiments of the present invention, but protection scope of the present invention is not limited to
This, anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention
And its inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of spiral energy-dissipating and shock-absorbing constrains support device, it is characterised in that：Including outer sleeve（2）, inner sleeve（3）, first
Internal core rod（11）And second internal core rod（12）, the inner sleeve（3）It is co-axially located at the outer sleeve（2）It is interior, it is described
The first internal core rod（11）With second internal core rod（12）Insertion inner sleeve is matched by screw thread respectively（3）Corresponding end
Portion, the first internal core rod（11）And inner sleeve（3）The thread rotary orientation of formation and the second internal core rod（12）And inner sleeve（3）The spiral shell of formation
Line is oppositely oriented, the first internal core rod（11）With the second internal core rod（12）In inner sleeve（3）It inside moves toward one another or backwards to movement.
2. a kind of spiral energy-dissipating and shock-absorbing according to claim 1 constrains support device, it is characterised in that：Described first
Internal core rod（11）With second internal core rod（12）Stretch out the inner sleeve（3）Both ends be also respectively provided with round end
Head, the described rotating end setting internal core rod and external beam column component between the two, alternatively, rotating end is arranged in internal core rod
Between the two with external node.
3. a kind of spiral energy-dissipating and shock-absorbing according to claim 2 constrains support device, it is characterised in that：The rotation
End includes connection board（6）, swivel bearing（5）And inner termination（121）, the internal core rod stretching inner sleeve
（3）End and the inner termination（121）One end be fixedly connected, inner termination（121）The other end pass through the rotation
Bearing（5）With the connection board（6）External end head（61）Connection, connection board（6）The other end be fixed on it is described outer
On portion's beam column component or the external node.
4. a kind of spiral energy-dissipating and shock-absorbing according to claim 1 constrains support device, it is characterised in that：The housing
Cylinder（2）Cutting, which is formed with, in a thickness direction accommodates the inner sleeve（3）The first groove（21）, perpendicular to outer sleeve
（2）First groove described in length direction and formation（21）Side on be also provided with and prevent inner sleeve（3）From outer sleeve（2）It is interior
The second groove skidded off（22）, second groove（22）Inside it is provided with circle sliding steel ball（4）, the sliding steel ball
（4）It is arranged in inner sleeve（3）With outer sleeve（2）Between the two.
5. a kind of spiral energy-dissipating and shock-absorbing according to claim 1 constrains support device, it is characterised in that：The housing
Cylinder（2）From central axes most nearby with a distance from and inner sleeve（3）Upper screw thread is from outer sleeve（2）Central axes most being equidistant nearby,
Inner sleeve（3）Lateral wall and outer sleeve（2）Inner sidewall between have distance.
6. a kind of spiral energy-dissipating and shock-absorbing according to claim 1 constrains support device, it is characterised in that：The housing
Cylinder（2）The center position of length direction is provided with oil filler point（23）, the oil filler point（23）On be provided with prevent injection
The leakage-proof structure that lubricating oil leaks out（24）.
7. a kind of spiral energy-dissipating and shock-absorbing according to claim 6 constrains support device, it is characterised in that：The inner sleeve
Cylinder（3）On be provided with multiple holes for facilitating lubricating oil flow.
8. a kind of spiral energy-dissipating and shock-absorbing according to claim 1 constrains support device, it is characterised in that：Described first
Internal core rod（11）With second internal core rod（12）In the inner sleeve（3）There are distance, inner sleeve in interior opposite end face（3）
Thread rotary orientation from from middle part to two sides is opposite.
9. a kind of spiral energy-dissipating and shock-absorbing according to claim 1 constrains support device, it is characterised in that：Described first
Internal core rod（11）Thread pitch, second internal core rod（12）Thread pitch and the inner sleeve（3）Screw thread
Screw pitch is setting value.
10. a kind of method for making spiral energy-dissipating and shock-absorbing constraint support device as described in claim 1, it is characterised in that：
Specifically comprise the following steps：
Step 1：Make outer sleeve（2）, inner sleeve（3）, the first internal core rod（11）, the second internal core rod（12）, inner termination（121）,
External end head（61）, swivel bearing（5）, connection board（6）And sliding steel ball（4）, first internal core rod（11）With it is described
The second internal core rod（12）Specification is identical, the outer sleeve（2）It is disconnected at its medium position deviateing, the inner sleeve
（3）Middle part and outer sleeve（2）Middle part be equipped with oil filler point（23）；
Step 2：By first internal core rod（11）With second internal core rod（12）It is packed into the inner sleeve（3）In,
By the outer sleeve（2）It covers in inner sleeve（3）On, while being packed into the sliding steel ball（4）, outer sleeve（2）Stitching portion is logical
Cross the welding of plane mouth；
Step 3：By the inner termination（121）It is welded in internal core rod, by the external end head（61）It is welded on the company
Connect end plate（6）On, connection board（6）It is connect with external beam column component, alternatively, connection board（6）It is connect with external node, inner end
Head（121）And external end head（61）Other both ends pass through the swivel bearing（5）Rotation connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810953282.5A CN108867916B (en) | 2018-08-21 | 2018-08-21 | Spiral energy-consumption damping constraint supporting device and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810953282.5A CN108867916B (en) | 2018-08-21 | 2018-08-21 | Spiral energy-consumption damping constraint supporting device and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108867916A true CN108867916A (en) | 2018-11-23 |
| CN108867916B CN108867916B (en) | 2023-07-11 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810953282.5A Active CN108867916B (en) | 2018-08-21 | 2018-08-21 | Spiral energy-consumption damping constraint supporting device and manufacturing method thereof |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111980221A (en) * | 2020-08-28 | 2020-11-24 | 李志兴 | Steel plate concrete shear wall assembly structure for building construction |
| CN115464351A (en) * | 2022-07-02 | 2022-12-13 | 大鲸互动科技(东莞)有限公司 | Glass table lid dismounting device |
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| CN101672074A (en) * | 2009-09-25 | 2010-03-17 | 北京工业大学 | Drum-type omni-directional turned mass damper |
| CN201526099U (en) * | 2009-10-23 | 2010-07-14 | 广州大学 | Triple circular steel tube buckling-restrained anti-seismic support |
| CN208815703U (en) * | 2018-08-21 | 2019-05-03 | 安徽省建筑设计研究总院股份有限公司 | A kind of spiral energy-dissipating and shock-absorbing constraint support device |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006028737A (en) * | 2004-07-12 | 2006-02-02 | Yahagi Construction Co Ltd | Triple pipe vibration control brace having length adjusting mechanism |
| CN101672074A (en) * | 2009-09-25 | 2010-03-17 | 北京工业大学 | Drum-type omni-directional turned mass damper |
| CN201526099U (en) * | 2009-10-23 | 2010-07-14 | 广州大学 | Triple circular steel tube buckling-restrained anti-seismic support |
| CN208815703U (en) * | 2018-08-21 | 2019-05-03 | 安徽省建筑设计研究总院股份有限公司 | A kind of spiral energy-dissipating and shock-absorbing constraint support device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111980221A (en) * | 2020-08-28 | 2020-11-24 | 李志兴 | Steel plate concrete shear wall assembly structure for building construction |
| CN111980221B (en) * | 2020-08-28 | 2021-12-10 | 深投建设(深圳)有限公司 | Steel plate concrete shear wall assembly structure for building construction |
| CN115464351A (en) * | 2022-07-02 | 2022-12-13 | 大鲸互动科技(东莞)有限公司 | Glass table lid dismounting device |
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| Publication number | Publication date |
|---|---|
| CN108867916B (en) | 2023-07-11 |
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