CN107190877B - Semi-rigid node friction energy dissipation device - Google Patents
Semi-rigid node friction energy dissipation device Download PDFInfo
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- CN107190877B CN107190877B CN201710587664.6A CN201710587664A CN107190877B CN 107190877 B CN107190877 B CN 107190877B CN 201710587664 A CN201710587664 A CN 201710587664A CN 107190877 B CN107190877 B CN 107190877B
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- 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
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
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- 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
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
- E04G2023/0248—Increasing or restoring the load-bearing capacity of building construction elements of elements made of wood
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Abstract
The invention discloses a semi-rigid node friction energy dissipation device, which comprises a wood column and a wood beam connected with the wood column through a mortise-tenon joint, wherein the friction energy dissipation device is connected between the wood column and the wood beam at the mortise-tenon joint and is respectively connected with the wood beam and the wood column through a beam end connecting piece and a column end connecting piece; the friction energy dissipation device comprises a beam end connecting rod connected to the beam end connecting piece, and a plurality of column end connecting rods connected to the column end connecting piece, wherein the column end connecting rods are connected with the beam end connecting rod through an intermediate connecting piece provided with a friction plate therebetween; the friction energy dissipation device provides rigidity before the beam column joint is displaced, and provides friction energy dissipation after the beam column joint is displaced. The device solves the limitation of the friction energy dissipation device in the aspect of friction force control. The device has the advantages of strong durability, flexible use and simple installation.
Description
Technical Field
The invention relates to a semi-rigid beam column node friction energy consumption device with adjustable friction force, belonging to the field of building, reinforcing and repairing of historic building wood structures, modern wood structure steel structures and the like. The method is suitable for the construction and structure adopting the semi-rigid node and the hinge point.
Background
The historic history of the ancient architecture is long, and the ancient architecture wood structure forms are largely adopted from ancient palace architecture, temple hall to resident houses; meanwhile, the distribution area is wide, almost the whole country is covered, and many wood structure buildings have hundreds of years or even thousands of years of history, are important components of Chinese civilization, and contain rich historic cultural connotations. Many ancient buildings which last hundreds of years or thousands of years exist in China, and the ancient buildings are relatively long in construction period, and meanwhile, due to the characteristics of wood, many structures are needed to be maintained and reinforced. Most of ancient wood structures are mortise and tenon joint wood frame structures, and long-time use of wood is easy to cause accumulated damages such as dry cracking, decay, worm damage, aging and the like, and maintenance and repair are also needed. In the construction process of modern new wood structure buildings, the experience of the past ancient building wood structures is summarized, and a plurality of new construction technologies and structures are adopted in the construction process. However, all wood-structure buildings cannot avoid the defects of the performance of the wood, so the reinforcing and repairing modes of the wood structure are main problems to be solved urgently for the ancient building wood structure or the modern wood structure.
The beam column joints of the wooden structure of the ancient building mainly adopt mortise-tenon connection modes, are mainly divided into dovetail joints and straight tenon connection modes, and are typically semi-rigid connection. The bearing capacity and the bending rigidity of the structure are lower, and the residual deformation which cannot be automatically recovered is easily generated due to the extrusion deformation under the action of natural environment and earthquake in the use process, so that the mortise and tenon joint is loosened, the whole structure is inclined and blew, the service life of the structure is seriously threatened, and the use safety of the structure is seriously threatened, so that the mortise and tenon joint is a weak position of the structure, and the bearing capacity and the earthquake resistance of the wood frame can be effectively improved through reinforcing the joint.
In modern buildings and structures, more forms of nodes are adopted as connection modes of the structures, and in concrete structures, steel structures, wood structures or mixed structures, semi-rigid nodes or hinge points are used in a large amount in the structures, but in the process of structural earthquake resistance, the damage of the nodes has serious influence on the stability and energy consumption of the structures. Strong columns and weak beams, and strong joint and weak components are important concepts of modern structures. The strength of the nodes and the energy consumption capability of the nodes are greatly valued by people. Therefore, protection of the nodes in the structure is also receiving more and more attention.
The friction energy consumption is a damping energy consumption mode commonly used in modern buildings, and the friction energy consumption component has the characteristics of convenience in installation, easiness in replacement, adjustable rigidity and the like, and can dissipate energy in a friction mode in the use process. And can withstand multiple earthquakes without damaging the structure itself. Has high application value in the reinforcement and repair processes of the building.
Due to the excellent performance of friction energy consumption, the friction damper is widely used in modern buildings, and students at home and abroad develop various friction dampers successively, mainly comprising: common friction dampers, pall friction dampers, sumitomo friction dampers, T-core friction dampers, and the like. The traditional friction damper is mainly applied to a modern reinforced concrete frame structure, is arranged between frames of the structure, and is used for fastening different metal plates by bolts, so that the aim of friction energy consumption is achieved by relative parallel sliding among the different metal plates. At present, friction energy dissipaters for joints, particularly semi-rigid joints, have not been developed, limiting the range of use of friction energy dissipaters to a structural monolithic frame. The friction damper used in the structure has the defects that the size is overlarge, a large working space is needed, the friction material is made of a single copper-steel metal material, so that the change of the friction coefficient is difficult to control, and the friction pre-tightening force is difficult to control due to the fact that the friction damper is fastened through a plurality of bolts.
Disclosure of Invention
In order to solve the defects in the prior art, the invention aims to provide a semi-rigid beam column node friction energy dissipation member which forms a rectangle with a beam column node, the rigidity of a structural frame is increased by installing a friction energy dissipation device at the beam column node, and a member for dissipating energy through friction is provided for the structure. The rigidity and energy consumption requirements of the structure are met, and guarantee is provided for subsequent use. Means for dissipating the external forces experienced by the structure and providing a degree of rigidity to the structure by means of rotational friction. Rigidity is provided when the structure is not vibrated, and friction energy consumption is provided for the structure when the structure is vibrated.
The invention is realized by the following technical scheme.
The semi-rigid node friction energy dissipater comprises a wood column and a wood beam connected with the wood column through a mortise-tenon joint, wherein the friction energy dissipater is connected between the wood column at the mortise-tenon joint and the wood beam and is respectively connected with the wood beam and the wood column through a beam end connecting piece and a column end connecting piece; the friction energy dissipation device comprises a beam end connecting rod connected to the beam end connecting piece, n column end connecting rods connected to the column end connecting piece, and the n column end connecting rods are connected with the beam end connecting rod through an intermediate connecting piece provided with a friction plate therebetween; the friction energy dissipation device provides rigidity before the beam column joint is displaced, and provides friction energy dissipation after the beam column joint is displaced.
Preferably, the post end connector comprises a pair of arc-shaped steel plates connected to the wood post, and a bolt connecting the arc-shaped steel plates; the arc-shaped steel plates on the outer sides of the wood columns are connected through bolts, and the arc-shaped steel plates on the inner sides of the wood columns are connected with the connecting rods at the ends of the columns through bolts.
Preferably, the beam-end connector includes a pair of frame-shaped steel plates connected to the wooden beam, and bolts connecting the frame-shaped steel plates; the wooden beam outer side frame-shaped steel plates are connected through bolts, the wooden beam inner side frame-shaped steel plates are connected with beam end cushion blocks clung to the wooden beam, and beam end connecting rods are connected to the middle parts of the beam end cushion blocks.
Preferably, the column end connecting rod is of a structure of a rectangular plate with one trapezoid end and one arc end, the trapezoid end is connected to a pair of arc-shaped steel plates on the wood column through bolts, the rectangular end with the arc is connected with the middle connecting piece, and the rectangular end with the arc is provided with an eccentric round hole.
Preferably, the middle connecting piece is a circular arc-shaped plate with one end provided with an eccentric circular hole and one end provided with a through hole, and the through hole is connected with the beam end connecting rod.
Further, the friction plate is of an eccentric circle structure with a bolt hole, the size of the friction plate corresponds to the eccentric circular hole in the column end connecting rod and the middle connecting piece, and the friction plate can be embedded into the reserved eccentric circular hole.
Further, the friction plate is in the same plane as the intermediate connection member.
Further, n intermediate connectors are clamped by n+1 post end links.
The invention provides a beam-column node energy consumption component, which solves the problems of poor durability, easy damage, insignificant energy consumption effect and the like in the existing semi-rigid node reinforcement mode. The friction energy dissipation component adopts a mode that prefabricated annular friction blocks are mutually extruded, and the friction force is changed in a mode of adjusting the positive pressure between the friction blocks and the friction coefficient of the friction blocks. The structure is converted between the static system and the variable system through the mutual conversion of static friction and sliding friction, so that the rigidity is provided in the static system state, and the energy consumption is provided in the variable system state.
According to the invention, the annular friction plate is adopted, so that the friction mode of horizontal sliding of the traditional friction plate is abandoned, the friction plates are relatively rotated, and the friction force is more uniform and stable; and a single bolt is used to control the positive pressure between the friction plates. The influence of uneven pretightening force on friction force is reduced.
The invention adopts the replaceable prefabricated friction material, and can change the friction force by prefabricating friction blocks with different friction coefficients, and also can change the friction force by changing the positive pressure between the friction blocks. Compared with the defect of single friction coefficient control form of the traditional friction energy dissipation member, the method solves the limitation of the friction energy dissipation device in the aspect of friction force control.
According to the invention, by amplifying the relative displacement of beam-column joints, the small displacement between the beam-column joints is amplified to the large displacement between the annular friction blocks, so that energy can be better consumed through friction. And provide corresponding rigidity before beam column node takes place the displacement, after beam column node takes place the displacement, provide friction power consumption for the structure.
The invention is not easy to damage when bearing large deformation, can continue to work after simple debugging, and can provide different friction moments by changing the friction coefficient of the friction block and changing the pretightening force of the friction block. The wood structure can be used for reinforcing and repairing the wood structure of the ancient building, and can also be used for modern structures. Compared with the traditional friction energy dissipation device, the friction energy dissipation device has the advantages of strong durability, flexible use and simple installation.
Drawings
FIG. 1 is a three-dimensional view of the overall arrangement of components;
FIG. 2 is an overall layout of components;
FIG. 3 is an exploded view of a post end link, friction plate, intermediate connector installation;
fig. 4 (a), 4 (b) and 4 (c) are three views of the post end connection device, respectively;
fig. 5 (a), 5 (b) and 5 (c) are three views of a beam-end connection device, respectively;
fig. 6 (a), 6 (b) and 6 (c) are three views of a beam-end pad, respectively;
FIGS. 7 (a), 7 (b) and 7 (c) are three views of a beam-end link, respectively;
FIGS. 8 (a), 8 (b) and 8 (c) are three views of a post end link, respectively;
fig. 9 (a), 9 (b) and 9 (c) are three views of an intermediate connector, respectively;
fig. 10 (a), 10 (b) and 10 (c) are three views of the friction plate, respectively.
In the figure, 1, a wood beam; 2. a wood column; 3. a beam-end connector; 4. a post end connector; 5. a post end connecting rod; 6. a beam end cushion block; 7. a beam end connecting rod; 8. a friction plate; 9. an intermediate connection.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples, but is not intended to be limiting.
As shown in fig. 1 and 2, a semi-rigid node friction energy dissipation device comprises a wood column 2 and a wood beam 1 connected with the wood column 2 through a mortise-tenon joint, wherein the friction energy dissipation device is connected with the wood beam 1 through a beam end connecting piece 3, is connected with the wood column 2 through a column end connecting piece 4 and comprises a beam end connecting rod 7 connected with the beam end connecting piece 3, n column end connecting rods 5 connected with the column end connecting piece 4, and n column end connecting rods 5 are connected with the beam end connecting rod 7 through an intermediate connecting piece 9 with a friction plate 8 arranged therebetween. The friction energy dissipation device provides rigidity before the beam column joint is displaced, and provides friction energy dissipation after the beam column joint is displaced.
As shown in fig. 4 (a), 4 (b) and 4 (c) and fig. 5 (a), 5 (b) and 5 (c), the present device, in which the column end connector 4 includes a pair of arc-shaped steel plates connected to the wooden column 2, and bolts connecting the arc-shaped steel plates; the beam-end connector 3 comprises a pair of frame-shaped steel plates connected to the wooden beam 1 and bolts for connecting the frame-shaped steel plates, wherein the frame-shaped steel plates are provided with beam-end cushion blocks 6 clung to the wooden beam 1 at the ends of connecting beam-end connecting rods 7, as shown in fig. 6 (a), 6 (b) and 6 (c). The beam end connecting rod 7 is connected to the middle part of the beam end cushion block 6. Fig. 7 (a), 7 (b) and 7 (c) are three views of the beam-end link 7.
As shown in fig. 3, the column end connecting rod 5 has a structure of a rectangular plate with a trapezoid at one end and an arc at one end, and as shown in fig. 8 (a), 8 (b) and 8 (c), the trapezoid end is connected to a pair of arc-shaped steel plates on the wooden column 2 by bolts, the rectangular end with the arc is connected with the middle connecting piece 9, and the rectangular end with the arc is provided with an eccentric round hole.
The structure of the middle connecting piece 9 is shown in fig. 9 (a), 9 (b) and 9 (c), the middle connecting piece 9 is a circular arc-shaped plate at two ends, one end of the middle connecting piece is provided with an eccentric circular hole, and the other end of the middle connecting piece is provided with a through hole for connecting the beam end connecting rod 7.
As shown in fig. 10 (a), 10 (b) and 10 (c), the friction plate 8 has an eccentric circular structure with bolt holes, the size of the friction plate 8 corresponds to the eccentric circular holes in the post end connecting rod 5 and the intermediate connecting piece 9, and the friction plate 8 can be inserted into the eccentric circular holes.
Wherein n intermediate connectors 9 are clamped by n+1 post end connecting rods 5, and friction plates 8 are padded at clamped ends of each intermediate connector 9.
The friction plate 8 is manufactured into the eccentric round (gourd-shaped) friction plate with the bolt holes in a prefabrication mode in a processing plant.
The specific embodiments of the component of the invention are as follows:
(1) First, the beam end connecting piece 3 and the column end connecting piece 4 are installed at the same positions with the beam column joint distance, and are fastened through bolts and nuts, so that relative displacement between the reinforcing device and the beam column is avoided.
(2) The post end connecting rod 5 is connected with the post end connecting piece 4 through bolts and nuts; the three column end connecting rods are parallel to each other and connected with the column in the vertical direction as shown in figure 1.
(3) Three friction plates 8 are sequentially placed in the reserved holes of the column end connecting rod 5, and the friction plates 8 and the column end connecting rod are positioned in the same plane.
(4) The other two friction plates 8 are placed in the reserved holes of the middle connecting piece 9, so that the friction plates 8 and the middle connecting piece 9 are positioned in the same plane.
(5) As shown in fig. 3, the middle connecting piece 9 with the friction plate 8 is connected with the post end connecting rod with the friction plate 8 through bolts and nuts; the bolts pass through 5 friction plates 8, and the two ends are fastened by nuts.
(6) And a beam end cushion block 6 is arranged at the lower end of the beam end connecting piece 3 and is fastened with the beam end connecting piece 3 through bolts.
(7) Two ends of a beam end connecting rod 7 are respectively arranged on a beam end cushion block 6 and a middle connecting piece 9, and bolts pass through reserved holes on the components; the nut is not fastened when being installed, so that the beam end connecting rod 7, the beam end cushion block and the middle connecting piece 9 can freely rotate.
As shown in fig. 2, the device and the beam column node form a square with proper size, the beam column node is reinforced by flat steel, and when the beam column node rotates relatively, the annular friction plates rotate relatively more, so that small displacement between the beam column nodes can be amplified. The friction blocks in the device belong to replaceable components, and the friction blocks with different friction coefficients can be replaced by the beam column nodes with different sizes; the whole component can be replaced when the structure bears a large shock. The friction block adopted by the invention can be prefabricated in a processing factory and can be processed by adopting different materials.
The invention is not limited to the above embodiments, and based on the technical solution disclosed in the invention, a person skilled in the art may make some substitutions and modifications to some technical features thereof without creative effort according to the technical content disclosed, and all the substitutions and modifications are within the protection scope of the invention.
Claims (3)
1. The semi-rigid node friction energy dissipater comprises a wood column (2) and a wood beam (1) connected with the wood column (2) through a mortise-tenon joint, wherein the friction energy dissipater is connected between the wood column (2) and the wood beam (1) at the mortise-tenon joint, and is characterized in that the friction energy dissipater is connected to the wood beam (1) and the wood column (2) through a beam end connecting piece (3) and a column end connecting piece (4) respectively; the friction energy dissipation device comprises a beam end connecting rod (7) connected to the beam end connecting piece (3), and n column end connecting rods (5) connected to the column end connecting piece (4), wherein the n column end connecting rods (5) are connected with the beam end connecting rod (7) through an intermediate connecting piece (9) provided with a friction plate (8) between the n column end connecting rods;
the column end connecting rod (5) is of a structure of a rectangular plate with one trapezoid end and one arc end, the trapezoid end is connected to a pair of arc-shaped steel plates on the wood column (2) through bolts, the rectangular end with the arc is connected with the middle connecting piece (9), and the rectangular end with the arc is provided with an eccentric round hole;
the middle connecting piece (9) is a circular arc-shaped plate with one end provided with an eccentric circular hole and the other end provided with a through hole, and the through hole is connected with the beam end connecting rod (7);
the friction plate (8) is of an eccentric circular structure with a bolt hole, the size of the friction plate (8) corresponds to the eccentric circular holes on the column end connecting rod (5) and the middle connecting piece (9), and the friction plate (8) can be embedded into the reserved eccentric circular holes;
n middle connecting pieces are clamped by n+1 column end connecting rods, friction plates are padded at the clamped ends of each middle connecting piece, and the friction plates adopt friction plates with eccentric circular bolt holes;
sequentially placing the friction plates (8) into the reserved holes of the column end connecting rods (5), wherein the friction plates (8) and the column end connecting rods are positioned in the same plane;
placing the friction plate (8) into a reserved hole of the middle connecting piece (9) so that the friction plate (8) and the middle connecting piece (9) are positioned in the same plane;
two ends of a beam end connecting rod (7) are respectively arranged on a beam end cushion block (6) and an intermediate connecting piece (9), and bolts pass through reserved holes on the components; the nut is not required to be fastened when being installed, so that the beam end connecting rod (7), the beam end cushion block and the middle connecting piece (9) can freely rotate;
the friction energy dissipation device provides rigidity before the beam column joint is displaced, and provides friction energy dissipation after the beam column joint is displaced.
2. A semi-rigid joint friction consumer according to claim 1, wherein the post end connector (4) comprises a pair of arcuate steel plates connected to the wood post (2), and a bolt connecting the arcuate steel plates; the arc-shaped steel plates on the outer sides of the wood posts (2) are connected through bolts, and the arc-shaped steel plates on the inner sides of the wood posts (2) are connected with the post end connecting rods (5) through bolts.
3. A semi-rigid node friction consumer according to claim 1, wherein the beam-end connector (3) comprises a pair of frame-shaped steel plates connected to a wooden beam (1) and bolts connecting the frame-shaped steel plates; the wooden beam outer side frame-shaped steel plates are connected through bolts, the wooden beam inner side frame-shaped steel plates are connected with beam end cushion blocks (6) which are clung to the wooden beam (1), and beam end connecting rods (7) are connected to the middle parts of the beam end cushion blocks (6).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710587664.6A CN107190877B (en) | 2017-07-18 | 2017-07-18 | Semi-rigid node friction energy dissipation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710587664.6A CN107190877B (en) | 2017-07-18 | 2017-07-18 | Semi-rigid node friction energy dissipation device |
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| CN107190877A CN107190877A (en) | 2017-09-22 |
| CN107190877B true CN107190877B (en) | 2023-07-21 |
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| CN201710587664.6A Active CN107190877B (en) | 2017-07-18 | 2017-07-18 | Semi-rigid node friction energy dissipation device |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108179824B (en) * | 2018-02-24 | 2023-09-05 | 广州大学 | Damper for house beam column node |
| CN108301636B (en) * | 2018-03-21 | 2024-03-08 | 北京交通大学 | Friction type arc damping limiting and reinforcing device and preparation method thereof |
| CN109537928B (en) * | 2018-11-26 | 2020-12-11 | 黑龙江建筑职业技术学院 | Frame beam column anti-seismic reinforcing structure and construction method |
| CN110173129A (en) * | 2019-06-24 | 2019-08-27 | 西安建筑科技大学 | A kind of energy-consumption shock-absorption device suitable for historic building structure Tenon node |
| CN112726817B (en) * | 2021-01-06 | 2022-03-11 | 亿涛建设集团有限公司 | Concrete anti-falling structure for beam column joint of frame structure building |
| CN113389397B (en) * | 2021-06-17 | 2022-11-22 | 北京工业大学 | Deformation amplification type friction energy dissipation sparrow is suitable for timber structure node |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01318628A (en) * | 1988-06-20 | 1989-12-25 | Shimizu Corp | Friction damper |
| JP2014198975A (en) * | 2013-03-30 | 2014-10-23 | 株式会社川金コアテック | Friction damper |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2014156964A (en) * | 2013-02-15 | 2014-08-28 | Babcock-Hitachi Co Ltd | Friction type seismic tie for vibration control over boiler |
| CN103711226B (en) * | 2014-01-14 | 2015-12-30 | 南京林业大学 | Semi-rigid energy-dissipating device reinforces wooden construction Tenon node |
| CN105317135B (en) * | 2015-10-23 | 2018-03-20 | 西南交通大学 | A kind of ancient architecture gallows timber Tenon friction of joint damper |
| CN106480991A (en) * | 2016-11-02 | 2017-03-08 | 西安建筑科技大学 | A kind of shape memory alloy spring antivibrator |
| CN106481132B (en) * | 2016-11-02 | 2018-07-17 | 西安建筑科技大学 | A kind of disc-shape memory alloy damper |
| CN207160309U (en) * | 2017-07-18 | 2018-03-30 | 西安建筑科技大学 | Structures with semi-rigid joints friction energy dissipation device |
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2017
- 2017-07-18 CN CN201710587664.6A patent/CN107190877B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01318628A (en) * | 1988-06-20 | 1989-12-25 | Shimizu Corp | Friction damper |
| JP2014198975A (en) * | 2013-03-30 | 2014-10-23 | 株式会社川金コアテック | Friction damper |
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