CN117248647B - Interval adjustable tuning mass damper - Google Patents
Interval adjustable tuning mass damper Download PDFInfo
- Publication number
- CN117248647B CN117248647B CN202311474324.4A CN202311474324A CN117248647B CN 117248647 B CN117248647 B CN 117248647B CN 202311474324 A CN202311474324 A CN 202311474324A CN 117248647 B CN117248647 B CN 117248647B
- Authority
- CN
- China
- Prior art keywords
- damper
- box body
- wall
- mass
- shell
- Prior art date
- 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.)
- Active
Links
- 238000013016 damping Methods 0.000 claims abstract description 13
- 238000005192 partition Methods 0.000 claims abstract description 7
- 238000009434 installation Methods 0.000 claims description 9
- 238000010030 laminating Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- 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
- 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
- E04B1/36—Bearings or like supports allowing movement
-
- 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
-
- 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
- E04H9/0215—Bearing, supporting or connecting constructions specially adapted for such buildings involving active or passive dynamic mass damping systems
-
- 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
- E04H9/023—Bearing, supporting or connecting constructions specially adapted for such buildings and comprising rolling elements, e.g. balls, pins
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Environmental & Geological Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention relates to the technical field of structural engineering, in particular to a section-adjustable tuning mass damper, which comprises the following components: the damping device comprises a base, a shell, a damper and a mass block; the shell is arranged at the top of the base and is subjected to damping adjustment through a damper arranged in the shell; the shell comprises a bottom plate and a rectangular box body with upper and lower openings, the box body is fixedly connected to the top of the bottom plate, a cross-shaped partition plate is further arranged on the inner wall of the box body, and the space inside the box body is divided into four chambers for placing mass blocks; the bottom of the bottom plate is provided with a circular through hole, and the through hole upwards and movably penetrates through the cross-shaped partition plate. Compared with the existing products, the damper is flexible to adjust in project application, does not increase external cost, avoids the possibility of detaching when the adjusting space of the product is limited, and reduces engineering service amount. The damper of the invention has the same production procedure as the existing tuned mass damper without cost increase in production and manufacture, and has extremely high economic benefit.
Description
Technical Field
The invention relates to the technical field of structural engineering, in particular to a section-adjustable tuned mass damper.
Background
The current tuned mass damper mainly comprises a connecting base, a spring, a damper and a mass block, and is mainly applied to the position with larger vibration mode displacement in the structure, and the tuned mass damper dissipates and absorbs vibration sources generated in the structure through the mass and the damper.
The current tuned mass damper with various structural vibration modes has limited field adjustment function; the mass and springs that make up the tuned mass damper cannot achieve interval adjustability.
Therefore, a section-adjustable tuned mass damper is proposed.
Disclosure of Invention
The invention aims to provide a section-adjustable tuning mass damper, which relates to the field of structural engineering (including roofing grid structures, large-span pedestrian overpasses, high-rise structures, large-span floors and airport boarding bridges), in particular to real-time adjustment of mass and rigidity of a multifunctional tuning mass damper, so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
A zone-adjustable tuned mass damper, comprising: the damping device comprises a base, a shell, a damper and a mass block; the shell is arranged at the top of the base and is subjected to damping adjustment through a damper arranged in the shell; the shell comprises a bottom plate and a rectangular box body with upper and lower openings, the box body is fixedly connected to the top of the bottom plate, a cross-shaped partition plate is further arranged on the inner wall of the box body, and the space inside the box body is divided into four chambers for placing mass blocks; the bottom of bottom plate has seted up circular through-hole, just the through-hole upwards and the activity runs through cross baffle, circular through-hole internal fixation has the pipe, just the attenuator sets up in the pipe.
Preferably, four through holes are formed in the bottom of the bottom plate and located in four cavities of the box body of the bottom plate, and the inner walls of the four through holes are fixedly connected with mounting pipes and are flush with the box body in height.
Preferably, the inner wall of every installation tube is connected with spiral regulating part through plane bearing rotation, just the top fixed mounting of base has four base locating pipes, and with installation tube central symmetry, the outer wall fixedly connected with spring of base locating pipe, and the outer wall threaded connection of spring is at the outer wall of spiral regulating part, the top fixedly connected with locking piece of installation tube.
Preferably, the damper includes: a fixed tube and a guide rod; the fixed pipe is fixedly connected to the top of the base, the outer wall of the fixed pipe is movably inserted into the inner wall of the circular pipe, the top of the circular pipe is fixedly provided with a mounting plate through a bolt, the center of the mounting plate is provided with a through hole, one end of the guide rod is installed on the inner wall of the through hole through an oilless bearing, and the guide rod extends upwards and is in threaded connection with a nut.
Preferably, the bottom of the guide rod is fixedly provided with a damping block through a threaded rod, and the outer wall of the damping block is attached to the inner wall of the fixed pipe.
Preferably, a plurality of even mass blocks are arranged in the four chambers of the box body, and the shape of each mass block is attached to the inner wall of the chamber in the box body.
Preferably, the mass is in the form of a sheet or a block.
Compared with the prior art, the invention has the beneficial effects that:
In the section-adjustable tuned mass damper, the existing products are similar in processing mode, the mass composition form is functionally adjusted, and the spring adjustable component and the locking function are added, so that the multifunctional adjusting form is realized.
The invention realizes the bidirectional adjustment of the mass and the rigidity of the tuned mass damper on the original basis and realizes the frequency adjustment; when the natural frequency of the newly built structure is slightly deviated from the analysis design, the frequency of the tuned mass damper can be adjusted through the method, so that the real-time project field adjusting function is realized, and the problem of product factory return is solved.
Compared with the existing products, the multifunctional tuning mass damper is flexible to adjust in project application, does not increase external cost, avoids the possibility of detaching when the adjusting space of the products is limited, and reduces engineering service quantity. The multifunctional tuned mass damper has the same production procedures as the existing tuned mass damper in production and manufacture, has no cost increase and has extremely high economic benefit.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic diagram of a cross-sectional structure of the present invention;
FIG. 3 is a schematic diagram of a cross-sectional structure of the present invention;
FIG. 4 is a schematic diagram of a cross-sectional structure of the third embodiment of the present invention;
FIG. 5 is a schematic view of a partial cross-sectional structure of the present invention;
FIG. 6 is a schematic view of a screw adjuster according to the present invention;
FIG. 7 is a schematic block diagram of the present invention.
In the figure: 1. a base; 2. a spring; 3. a damper; 4. a screw adjuster; 5. a planar bearing; 6. a locking member; 7. a mass block; 8. a guide rod; 9. an oilless bearing; a bottom plate 11; 12. a case; 13. a round tube; 31. a fixed tube; 32. a damping block; 33. a threaded rod; 34. and (3) mounting a plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center," "upper," "lower," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of this patent, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may be fixedly connected, disposed, or detachably connected, disposed, or integrally connected, disposed, for example. The specific meaning of the terms in this patent will be understood by those of ordinary skill in the art as the case may be.
Furthermore, in the description of the invention, the meaning of "a number" is two or more, unless explicitly defined otherwise.
The existing product has similar processing modes, functionally adjusts the mass composition form, adds the spring adjustable component and the locking function, and realizes the multifunctional adjustment shape.
The inventor finds that the current tuned mass damper mainly comprises a connecting base, a spring, a damper and a mass block, and is mainly applied to the position with larger vibration mode displacement in the structure, and the tuned mass damper dissipates and absorbs vibration sources generated in the structure through the mass and the damper. The current tuned mass damper with various structural vibration modes has limited field adjustment function; the mass and springs that make up the tuned mass damper cannot achieve interval adjustability.
As shown in fig. 1-7, a zone adjustable tuned mass damper comprising: a base 1, a shell, a damper 3 and a mass 7; the shell is arranged at the top of the base 1 and is subjected to damping adjustment through a damper 3 arranged in the shell; the shell comprises a bottom plate 11 and a rectangular box body 12 with upper and lower openings, the box body 12 is fixedly connected to the top of the bottom plate 11, a cross-shaped partition plate is further arranged on the inner wall of the box body 12, and the space inside the box body 12 is divided into four chambers for placing the mass blocks 7; the bottom of the bottom plate 11 is provided with a circular through hole which upwards and movably penetrates through the cross-shaped partition plate, a circular pipe 13 is fixedly connected in the circular through hole, and the damper 3 is arranged in the circular pipe 13. Four through holes are formed in the bottom of the bottom plate 11 and located in four cavities of the box 12, and mounting pipes are fixedly connected to the inner walls of the four through holes and are flush with the box 12 in height.
The inner wall of every installation tube is connected with spiral regulating part 4 through plane bearing 5 rotation, and the top fixed mounting of base 1 has four base locating tubes, and with installation tube central symmetry, the outer wall fixedly connected with spring 2 of base locating tube, and the outer wall threaded connection of spring 2 is at the outer wall of spiral regulating part 4, the top fixedly connected with locking piece 6 of installation tube. The spiral adjusting piece 4 and the spring 2 are connected in a screwing mode, and the rigidity adjustment is achieved by rotating the connection height of the spiral adjusting piece 4 and the spring 2.
The damper 3 includes: a fixed tube 31 and a guide rod 8; the fixed pipe 31 is fixedly connected to the top of the base 1, the outer wall of the fixed pipe 31 is movably inserted into the inner wall of the circular pipe 13, the top of the circular pipe 13 is fixedly provided with a mounting plate 34 through a bolt, the center of the mounting plate 34 is provided with a through hole, one end of the guide rod 8 is mounted on the inner wall of the through hole through the oilless bearing 9, and the guide rod extends upwards and is in threaded connection with a nut. The bottom of guide bar 8 is through threaded rod 33 fixed mounting damping piece 32, and the outer wall of damping piece 32 is laminated with the inner wall of fixed pipe 31.
A plurality of even mass blocks 7 are arranged in the four chambers of the box body 12, the mass blocks 7 are sheet-shaped or block-shaped, and the shape of the mass blocks 7 is attached to the inner wall of the chamber in the box body 12. The multi-group mass block 7 assembly is fixedly connected through the spiral adjusting piece 4 and the plane bearing 5, and the spring 2 is fixedly connected through the limiting of the base positioning tube.
The working principle of the invention is as follows:
When the interval-adjustable tuned mass damper is used, the spring 2 can be subjected to variable stiffness and mass variable design improvement in order to realize multistage adjustment of the tuned mass damper; when the mass is fixed, the rigidity of the cylindrical spring 2 is adjusted through the spiral adjusting piece 4 (when the wire diameter, the middle diameter and the free height of the spring are unified, the rigidity can be adjusted through the effective turns and the free height of the spring 2 through the spiral adjusting piece 4); the stiffness of the spring 2 is fixed and reduced by adding and subtracting the mass blocks 7 (the mass blocks 7 are formed by stacking modules, the unit bodies of the mass blocks 7 are formed by an even number of module bodies, and each module can realize the addition and subtraction of the total mass); the stiffness of the spring 2 and the mass block 7 are adjusted to realize that the product changes along with structural changes in the project, so that the performance diversification and high-efficiency service are realized in the comprehensive use scene and the timely adjustment of the product, the application field of the tuned mass damper is greatly expanded, and compared with the existing product, the multifunctional tuned mass damper is flexible in adjustment in the project application, has no external cost increase, avoids the possibility of being detached when the adjustment space of the product is limited, and reduces the engineering service quantity. The multifunctional tuned mass damper has the same production procedures as the existing tuned mass damper in production and manufacture, has no cost increase and has extremely high economic benefit.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. A zone-adjustable tuned mass damper, comprising: the device comprises a base (1), a shell, a damper (3) and a mass block (7);
The shell is arranged at the top of the base (1) and is subjected to damping adjustment through a damper (3) arranged in the shell;
the shell comprises a bottom plate (11) and a rectangular box body (12) with upper and lower openings, the box body (12) is fixedly connected to the top of the bottom plate (11), a cross-shaped partition plate is further arranged on the inner wall of the box body (12), and the space inside the box body (12) is divided into four chambers for placing the mass blocks (7);
a circular through hole is formed in the bottom of the bottom plate (11), the through hole upwards and movably penetrates through the cross-shaped partition plate, a circular tube (13) is fixedly connected in the circular through hole, and the damper (3) is arranged in the circular tube (13);
Four through holes are formed in the bottom of the bottom plate (11) and are positioned in four cavities of the box body (12), and the inner walls of the four through holes are fixedly connected with mounting pipes, and the heights of the mounting pipes are flush with the box body (12);
The inner wall of each installation tube is rotationally connected with a spiral adjusting piece (4) through a plane bearing (5), four base positioning tubes are fixedly arranged at the top of each base (1) and are centrosymmetric with the installation tube, a spring (2) is fixedly connected with the outer wall of each base positioning tube, the outer wall of each spring (2) is in threaded connection with the outer wall of each spiral adjusting piece (4), and a locking piece (6) is fixedly connected above each installation tube;
the damper (3) includes: a fixed pipe (31) and a guide rod (8);
The fixed pipe (31) is fixedly connected to the top of the base (1), the outer wall of the fixed pipe (31) is movably inserted into the inner wall of the circular pipe (13), the top of the circular pipe (13) is fixedly provided with a mounting plate (34) through a bolt, the center of the mounting plate (34) is provided with a through hole, one end of the guide rod (8) is arranged on the inner wall of the through hole through an oilless bearing (9), and the guide rod extends upwards and is in threaded connection with a nut;
The bottom of guide bar (8) is through threaded rod (33) fixed mounting has damping piece (32), just the outer wall of damping piece (32) with the laminating of the inner wall of fixed pipe (31).
2. The zone adjustable tuned mass damper of claim 1, wherein: a plurality of even mass blocks (7) are arranged in four chambers of the box body (12), and the shape of each mass block (7) is attached to the inner wall of the chamber in the box body (12).
3. The zone adjustable tuned mass damper of claim 1, wherein: the mass block (7) is in a sheet shape or a block shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311474324.4A CN117248647B (en) | 2023-11-07 | 2023-11-07 | Interval adjustable tuning mass damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311474324.4A CN117248647B (en) | 2023-11-07 | 2023-11-07 | Interval adjustable tuning mass damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117248647A CN117248647A (en) | 2023-12-19 |
| CN117248647B true CN117248647B (en) | 2024-05-17 |
Family
ID=89129696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311474324.4A Active CN117248647B (en) | 2023-11-07 | 2023-11-07 | Interval adjustable tuning mass damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117248647B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101457554A (en) * | 2007-12-14 | 2009-06-17 | 尹学军 | Damping ratio adjustable tuning quality damper |
| CN101457553A (en) * | 2007-12-14 | 2009-06-17 | 尹学军 | Spring stiffness adjustable tuning quality damper |
| JP2015152024A (en) * | 2014-02-10 | 2015-08-24 | カヤバ工業株式会社 | suspension |
| CN106760847A (en) * | 2016-12-20 | 2017-05-31 | 上海史狄尔建筑减震科技有限公司 | Full assembled tuned mass damper, TMD |
| CN209179232U (en) * | 2018-10-23 | 2019-07-30 | 上海路博减振科技股份有限公司 | A kind of new type of continuous adjusts the tuned mass damper of rigidity |
| CN212053291U (en) * | 2019-12-17 | 2020-12-01 | 上海建顾减震科技有限公司 | Suspension type tuning mass damping device with large adjustable range |
| CN212564187U (en) * | 2020-06-12 | 2021-02-19 | 福建钜铖汽车配件有限公司 | Damping piston |
| KR102377267B1 (en) * | 2021-08-31 | 2022-03-22 | 주식회사 브이엠브이테크 | Multi Spring Tuned-Mass Damper for Floor Vibration Control |
| CN115030338A (en) * | 2022-07-13 | 2022-09-09 | 上海材料研究所 | Frequency division type vibration and noise reduction device based on tuned mass particle damper |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113802906B (en) * | 2021-08-29 | 2022-10-28 | 北京工业大学 | Construction steel platform system adopting TLD and TMD composite tuning damping |
-
2023
- 2023-11-07 CN CN202311474324.4A patent/CN117248647B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101457554A (en) * | 2007-12-14 | 2009-06-17 | 尹学军 | Damping ratio adjustable tuning quality damper |
| CN101457553A (en) * | 2007-12-14 | 2009-06-17 | 尹学军 | Spring stiffness adjustable tuning quality damper |
| JP2015152024A (en) * | 2014-02-10 | 2015-08-24 | カヤバ工業株式会社 | suspension |
| CN106760847A (en) * | 2016-12-20 | 2017-05-31 | 上海史狄尔建筑减震科技有限公司 | Full assembled tuned mass damper, TMD |
| CN209179232U (en) * | 2018-10-23 | 2019-07-30 | 上海路博减振科技股份有限公司 | A kind of new type of continuous adjusts the tuned mass damper of rigidity |
| CN212053291U (en) * | 2019-12-17 | 2020-12-01 | 上海建顾减震科技有限公司 | Suspension type tuning mass damping device with large adjustable range |
| CN212564187U (en) * | 2020-06-12 | 2021-02-19 | 福建钜铖汽车配件有限公司 | Damping piston |
| KR102377267B1 (en) * | 2021-08-31 | 2022-03-22 | 주식회사 브이엠브이테크 | Multi Spring Tuned-Mass Damper for Floor Vibration Control |
| CN115030338A (en) * | 2022-07-13 | 2022-09-09 | 上海材料研究所 | Frequency division type vibration and noise reduction device based on tuned mass particle damper |
Non-Patent Citations (2)
| Title |
|---|
| 朱显宇 ; .基于调谐质量阻尼器的人行天桥的减振研究.价值工程.2016,(第23期),全文. * |
| 汪志昊 ; 许艳伟 ; 赵顺波 ; 霍洪媛 ; .基于表观质量负刚度效应的调谐质量阻尼器频率调节.科学技术与工程.2016,(第27期),全文. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117248647A (en) | 2023-12-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105735512A (en) | Vibration reduction control device of tuned mass damper | |
| CN117248647B (en) | Interval adjustable tuning mass damper | |
| CN112900640A (en) | Anti-seismic energy-consumption connecting joint of assembled external wall panel and H-shaped steel beam | |
| CN206245469U (en) | Assembled beam frame structure | |
| CN111456250A (en) | Swift assembled house | |
| CN113623355A (en) | Inertial volume type tuning vibration isolator | |
| CN112832398A (en) | Box type tuning particle mass damping device combined with collision damping | |
| CN216382378U (en) | Inertial volume type tuning vibration isolator | |
| CN112095897A (en) | Assembled cascade ceiling with shock attenuation effect | |
| CA2391683A1 (en) | Simple pendulum with variable restoring force | |
| CN202326874U (en) | Line pendulum type wind driven generator tower vibration damping device | |
| CN113362793B (en) | Bidirectional rough parallel-arrangement micro-channel porous sound absorption structure | |
| CN2830779Y (en) | Shock absorber for install equipment | |
| CN109812114A (en) | It is a kind of horizontal vertically to eddy current tuned mass damper | |
| CN204099494U (en) | A kind of transformer isolation mounting | |
| CN101761137A (en) | Connecting piece of precast wall body and building structure | |
| CN108493538A (en) | A kind of cavity body filter that can adjust stiffness of coupling | |
| CN113404800A (en) | Space rod piece structure vibration damping device and method | |
| CN208235798U (en) | Column structure for prefabricated buildings | |
| CN204944522U (en) | A kind of bracket vibration damping structure of installing for sensor | |
| CN105757161B (en) | Forging hammer limited displacement damper | |
| CN207499189U (en) | Nonlinear energy trap damper based on filtering | |
| CN219554337U (en) | Wall-mounted active filter | |
| CN212926478U (en) | Passive house wall base takes precautions against earthquakes | |
| CN219013934U (en) | Mounting structure of indoor barrel type camera |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |