CN113175115A - Double-rigidity buckling restrained damper - Google Patents
Double-rigidity buckling restrained damper Download PDFInfo
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- CN113175115A CN113175115A CN202110510985.2A CN202110510985A CN113175115A CN 113175115 A CN113175115 A CN 113175115A CN 202110510985 A CN202110510985 A CN 202110510985A CN 113175115 A CN113175115 A CN 113175115A
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- outer sleeve
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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
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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
- 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
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- Environmental & Geological Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Dampers (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a double-rigidity buckling restrained damper which comprises an inner core, an outer sleeve, a first bolt group and a second bolt group. The inner core is formed by processing a round bar and comprises a left connecting end, a left transition section, a large yielding section, an elastic section A, a small yielding section, an elastic section B, a right transition section and a right connecting end. The large yielding section and the small yielding section are formed by cutting the round rod, and the diameters of the rest parts are the same as the diameter of the round rod. Wherein, the elastic section A and the elastic section B are provided with round holes A and round holes B at equal intervals. And a round hole C and a long round hole are formed in the outer sleeve, wherein the round hole C is aligned with the center of the round hole A in the elastic section A, the long round hole is aligned with the center of the round hole B in the elastic section B, and the holes are connected through bolts. The large yielding section, the elastic section A and the small yielding section are arranged in the outer sleeve, so that the buckling of the large and small yielding sections can be effectively restrained by the outer sleeve. When the double-rigidity buckling restrained damper is subjected to external force, the two yielding sections yield successively, and secondary rigidity is realized.
Description
Technical Field
The invention relates to a damper in the field of civil engineering, in particular to a double-rigidity buckling restrained damper for reducing earthquake response of an engineering structure.
Background
Earthquake disasters have the characteristics of sudden and unpredictable property, high frequency, serious secondary disasters, great influence on society and the like. Earthquake disasters include natural and social factors. As dampers become important energy consuming components in structural seismic resistance, their technological development is also extremely rapid. Metal dampers are one type of damper whose principle is that they first yield before plastic deformation of the building structure occurs to dissipate most of the energy transferred to the building structure from ground movement. The metal dampers are classified into bending yield type, shearing yield type, tension and compression type, and twisting yield type according to energy consumption manner.
The buckling restrained damper belongs to a metal tension and compression damper, and a typical buckling restrained damper consists of an inner core, an outer wrapping restrained member and an unbonded layer or a gap arranged between the inner core and the outer wrapping restrained member, wherein the inner core only bears axial force and generates axial deformation, and the restrained member only prevents lateral buckling under pressure through the bending rigidity and the bending bearing capacity of the restrained member. The buckling restrained damper is additionally provided with a restraining system, so that the buckling amplitude can be supported by an effective limit value, the full-section yielding of the component is realized, and a full hysteresis curve and strong low-cycle fatigue capability are formed.
The traditional buckling restrained damper is simple in structure and low in manufacturing cost, but the defects that the rigidity of the damper is not variable in working, the energy consumption capability is low and the like still exist. Because rigidity is unchangeable, the control of traditional buckling restrained damper to the structure is comparatively single, simultaneously because the weakening to floor rigidity, traditional buckling restrained damper can lead to the displacement between the layer to concentrate to produce weak layer. In order to realize the secondary rigidity of the damper, the design is often complicated, and the durability of the damper is poor.
Disclosure of Invention
The invention provides a double-rigidity buckling restrained damper, which aims to solve the problems that the rigidity of the damper is not variable in the working stage, or the rigidity is variable but the realization mode is complex and the like.
The technical scheme adopted by the invention is as follows: a dual-rigidity buckling restrained damper comprises an inner core (1), an outer sleeve (2), a first bolt group and a second bolt group;
the inner core is formed by processing a round bar and comprises a left connecting end, a left transition section, a large yield section, an elastic section A, a small yield section, an elastic section B, a right transition section and a right connecting end; the cross-sectional areas of the left connecting end, the left transition section, the elastic section A, the elastic section B, the right transition section and the right connecting end are the same as those of the round bar, and the large yield section and the small yield section are formed by cutting the round bar; wherein, the elastic section A is provided with round holes A at equal intervals, and the elastic section B is provided with round holes B at equal intervals; the left connecting end and the right connecting end are provided with threads so as to be conveniently connected with an external structure; round holes C and long round holes are formed in the outer sleeve (2) at equal intervals, wherein the round holes C in the outer sleeve are aligned with the centers of the round holes A in the elastic section A, and the long round holes in the outer sleeve are aligned with the centers of the round holes B in the elastic section B; the large yield section, the elastic section A and the small yield section, and the elastic section B are positioned in the outer sleeve, so that the buckling of the large yield section and the small yield section can be effectively restrained by the outer sleeve; the first bolt group penetrates through the round hole C and the round hole A, the second bolt group penetrates through the long round hole and the round hole B, and the inner core and the outer sleeve are assembled into a whole.
Preferably, the cross-sectional areas of the elastic sections A and B are more than 1.5 times of the cross-sectional area of the large yield section, so that the weakened positions of the bolts of the elastic sections A and B are still in an elastic state when the large yield section reaches the ultimate stress.
Because the elastic section A and the elastic section B are provided with the round holes, the cross sections of the elastic section A and the elastic section B are weakened to a certain degree, the sectional area of the elastic section is required to be larger than that of the large yield section to ensure the normal work of the elastic section, and when the former is 1.5 times of that of the latter, the requirements can be better met.
Preferably, the cross-sectional area of the large yield segment should be greater than 1.5 times the cross-sectional area of the small yield segment to ensure that the large yield segment remains in an elastic state when the displacement of the small yield segment is limited. The design of the large yielding section and the small yielding section provides dual rigidity for the damper.
In order to embody two working stages of the damper, namely the successive working of the small yield section and the large yield section, the sectional area of the large yield section is larger than that of the small yield section, and when the former is 1.5 times of that of the latter, the requirement can be better met. The design of the large and small yield sections embodies the idea of double rigidity.
Preferably, the nuts in the first bolt group and the second bolt group are not screwed tightly to exert pre-tightening force, and only play a role of fixing the screw rod, so that the screw rod can serve as a stop lever.
The first bolt group, the second bolt group and the outer sleeve play a role in restraining the deformation of the small yield section, and in order to prevent the stress concentration caused by the extrusion of the nut on the outer sleeve and reduce unnecessary damage to the structure, the nut is not provided with pretightening force.
Preferably, the lengths of the left transition section and the right transition section are such that the outer member does not touch the outer sleeve to cause damage when the inner core is pressed.
Left link and elastic segment A are connected respectively to left changeover portion, right changeover portion, and right link and elastic segment B must guarantee certain length and avoid external member touching outer tube, cause the damage to outer tube.
Preferably, the two ends of the large yielding section and the small yielding section in the core need to be chamfered, so that stress concentration is avoided.
Because the large yield section and the small yield section are main deformation energy consumption sections, chamfering treatment is carried out on the two ends of the large yield section and the small yield section, so that the damage of stress concentration phenomena on the yield sections can be effectively avoided, and the deformation capacity of the large yield section and the small yield section is influenced.
Preferably, friction plates are arranged on the upper side and the lower side of the outer sleeve, two ends of each friction plate are aligned with two ends of the right elastic section, and a round hole D is formed in each friction plate and is aligned with the center of the long round hole in the outer sleeve. When the small yield section deforms, the friction plate is driven to move relative to the outer sleeve, and friction energy consumption is generated. The friction force can be controlled by the pre-tightening force of the second bolt group.
Through the friction plate, two energy consumption means, namely friction energy consumption and tension and compression energy consumption, are realized in the damper, and the ratio of the friction energy consumption to the tension and compression energy consumption can be controlled through the pretightening force of the bolt, so that the damper is more favorable for the earthquake-resistant optimal design of the structure, and the safety redundancy of the structure is improved.
Preferably, the friction plate in the damper can be made of brass, NAO, carbon fiber or other suitable materials.
The invention has the following beneficial effects:
1. the damper inner core is formed by processing a round bar, the outer sleeve is made of a seamless steel pipe, and the damper is simple in structure, convenient to process and convenient for mass production.
2. Compared with other traditional dampers, the double-rigidity buckling restrained damper has the advantages that the secondary rigidity is realized, the interlayer deformation can be adjusted, the double-rigidity buckling restrained damper is more uniform, the deformation mode of the whole structure is controlled, and the weak layer is prevented from collapsing.
3. The length of the long circular hole of the outer sleeve of the double-rigidity buckling restrained damper can be adjusted according to the requirement of interlayer deformation, so that the starting displacement of the secondary rigidity is changed.
4. Compared with other traditional buckling restrained dampers, the double-rigidity buckling restrained damper has obviously different hysteresis curves. The double-rigidity buckling restrained damper solves the problem that the traditional damper is not changed in control under different dynamic responses, and provides rigidity for the structure.
5. The displacement of the small yield section of the double-rigidity buckling restrained damper is limited by the long round hole in the outer sleeve and the bolt, so that the working of the damper is prevented from being influenced due to the fact that the displacement of the small yield section is too large.
6. The dual-rigidity buckling restrained damper can realize two energy consumption means of friction energy consumption and tension and compression energy consumption by a method of adding the brass plate, the ratio of the friction energy consumption to the tension and compression energy consumption can be realized by changing the pretightening force of the bolt, the anti-seismic optimized design of the structure is facilitated, and the safety redundancy of the structure is improved.
Description of the drawings:
FIG. 1 is a front view of an inner core in a dual-stiffness buckling-restrained damper according to embodiment 1 of the invention;
FIG. 2 is a sectional view and a top view of an outer sleeve in the dual-stiffness buckling restrained damper according to embodiment 1 of the invention;
FIG. 3 is an assembled view of a dual-stiffness buckling restrained damper of embodiment 1 of the present invention;
FIG. 4 is a schematic view showing the operation of the dual-stiffness buckling restrained damper according to embodiment 1 of the present invention under pressure;
FIG. 5 is a plan view of a friction plate in the dual-stiffness buckling restrained damper according to embodiment 2 of the invention;
fig. 6 is an assembled view of a dual-stiffness buckling restrained damper of embodiment 2 of the present invention.
The specific implementation mode is as follows:
the invention is further described with reference to the following figures and detailed description.
Example one
As shown in the figure: a double-rigidity buckling restrained damper comprises an inner core 1, an outer sleeve 2, a first bolt group 3-1 and a second bolt group 3-2;
the inner core 1 is formed by processing a round bar and comprises a left connecting end 1-1, a left transition section 1-2, a large yield section 1-3, an elastic section A1-4, a small yield section 1-5, an elastic section B1-6, a right transition section 1-7 and a right connecting end 1-8; the cross-sectional areas of the left connecting end 1-1, the left transition section 1-2, the elastic section A1-4, the elastic section B1-6, the right transition section 1-7 and the right connecting end 1-8 are the same as those of a round bar, and the large yield section 1-3 and the small yield section 1-5 are formed by cutting the round bar; wherein, round holes A1-4-1 are arranged at equal intervals on the elastic section A1-4, and round holes B1-6-1 are arranged at equal intervals on the elastic section B1-6; the left connecting end 1-1 and the right connecting end 1-8 are provided with threads so as to be conveniently connected with an external structure; round holes C2-1 and long round holes 2-2 are formed in the outer sleeve 2 at equal intervals, wherein the round hole C2-1 in the outer sleeve 2 is aligned with the center of the round hole A1-4-1 in the elastic section A1-4, and the long round hole 2-2 in the outer sleeve 2 is aligned with the center of the round hole B1-6-1 in the elastic section B1-7; the large yield section 1-3, the elastic section A1-4, the small yield section 1-5 and the elastic section B1-6 are positioned in the outer sleeve 2, so that the buckling of the large and small yield sections can be effectively restrained by the outer sleeve 2; the first bolt group 3-1 penetrates through a round hole C2-1 and a round hole A1-4-1, the second bolt group 3-2 penetrates through a long round hole 2-2 and a round hole B1-6-1, and the inner core 1 and the outer sleeve 2 are assembled into a whole.
Taking compression as an example, the operation of the damper is divided into two phases. The first stage is as follows: when the damper is pressed, the small yield section 1-5 firstly deforms and consumes energy, and drives the second bolt group 3-2 to move leftwards in the long round hole 2-2 along the length direction, and the figure is shown in fig. 4 (b). And a second stage: when the second bolt group 3-2 contacts the left edge of the long round hole 2-2, the bolts stop moving, so that the deformation of the small yield section is restrained; as the displacement continues to increase, the deformation is concentrated in the large yield sections 1-3. Initially providing a second stiffness to the damper for elastic deformation, and then going to a plastic stage for dissipating energy, see fig. 4(c) for details.
The cross-sectional areas of the elastic section A1-4 and the elastic section B1-6 are more than 1.5 times of the cross-sectional area of the large yield section 1-3, so that the weakened section of the elastic section A1-4 and the elastic section B1-6 is still in an elastic state when the large yield section 1-3 reaches the ultimate stress.
The cross-sectional area of the large yielding segment 1-3 should be 1.5 times larger than that of the small yielding segment 1-5, so that the large yielding segment 1-3 is still in an elastic state when the displacement of the small yielding segment 1-5 is limited. The design of the large yield section 1-3 and the small yield section 1-5 provides dual rigidity for the damper.
Nuts in the first bolt group 3-1 and the second bolt group 3-2 are not screwed down to apply pretightening force, and only play a role in fixing the screw rod, so that the screw rod plays a role of a stop lever.
The lengths of the left transition section 1-2 and the right transition section 1-7 are such that an external member does not touch the outer sleeve 2 to cause damage when the inner core 1 is pressed.
The two ends of the large yield section 1-3 and the small yield section 1-5 in the inner core 1 need to be chamfered, so that stress concentration is avoided.
Example two
As shown in fig. 5 and 6: the embodiment is the same as the rest of the embodiment 1, except that the upper and lower sides of the outer sleeve 2 are provided with friction plates 4, two ends of each friction plate 4 are aligned with two ends of the right elastic section 1-6, and a round hole D4-1 is formed on each friction plate and is aligned with the center of the long round hole 2-2 on the outer sleeve 2. When the small yield section 1-5 deforms, the friction plate 4 is driven to move relative to the outer sleeve 2, and friction energy consumption is generated. The friction force can be controlled by the pre-tightening force of the second bolt group 3-2.
The friction plate 4 may be made of brass, NAO, carbon fibre or other suitable material.
It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be construed as the protection scope of the present invention. All the components not specified in the present embodiment can be realized by the prior art.
Claims (8)
1. A dual-rigidity buckling restrained damper is characterized by comprising an inner core (1), an outer sleeve (2), a first bolt group (3-1) and a second bolt group (3-2); the inner core (1) is formed by processing a round bar and comprises a left connecting end (1-1), a left transition section (1-2), a large yield section (1-3), an elastic section A (1-4), a small yield section (1-5), an elastic section B (1-6), a right transition section (1-7) and a right connecting end (1-8); the cross-sectional areas of the left connecting end (1-1), the left transition section (1-2), the elastic section A (1-4), the elastic section B (1-6), the right transition section (1-7) and the right connecting end (1-8) are the same as that of a round bar, and the large yield section (1-3) and the small yield section (1-5) are formed by cutting the round bar; wherein, the elastic section A (1-4) is provided with round holes A (1-4-1) at equal intervals, and the elastic section B (1-6) is provided with round holes B (1-6-1) at equal intervals; the left connecting end (1-1) and the right connecting end (1-8) are provided with threads so as to be conveniently connected with an external structure; round holes C (2-1) and long round holes (2-2) are formed in the outer sleeve (2) at equal intervals, wherein the round holes C (2-1) in the outer sleeve (2) are aligned with the centers of the round holes A (1-4-1) in the elastic section A (1-4), and the long round holes (2-2) in the outer sleeve (2) are aligned with the centers of the round holes B (1-6-1) in the elastic section B (1-7); the large yielding section (1-3), the elastic section A (1-4) and the small yielding section (1-5), and the elastic section B (1-6) are positioned in the outer sleeve (2), so that the buckling of the large and small yielding sections can be effectively restrained by the outer sleeve (2); the first bolt group (3-1) penetrates through the round hole C (2-1) and the round hole A (1-4-1), the second bolt group (3-2) penetrates through the long round hole (2-2) and the round hole B (1-6-1), and the inner core (1) and the outer sleeve (2) are assembled into a whole.
2. A dual rate buckling restrained damper as recited in claim 1, wherein: the sectional areas of the elastic sections A (1-4) and B (1-6) are 1.5 times larger than that of the large yield section (1-3), so that the weakened positions of the bolts of the elastic sections A (1-4) and B (1-6) are still in an elastic state when the large yield section (1-3) reaches the ultimate stress.
3. A dual rate buckling restrained damper as recited in claim 1, wherein: the cross-sectional area of the large yielding section (1-3) is 1.5 times larger than that of the small yielding section (1-5), so that the large yielding section (1-3) is still in an elastic state when the displacement of the small yielding section (1-5) is limited, and the design of the large yielding section (1-3) and the small yielding section (1-5) provides dual rigidity for the damper.
4. A dual rate buckling restrained damper as recited in claim 1, wherein: nuts in the first bolt group (3-1) and the second bolt group (3-2) are not screwed tightly to apply pretightening force, and only play a role in fixing the screw rod, so that the screw rod plays a role in serving as a stop lever.
5. A dual rate buckling restrained damper as recited in claim 1, wherein: the lengths of the left transition section (1-2) and the right transition section (1-7) are such that an external member cannot touch the outer sleeve (2) to cause damage when the inner core (1) is pressed.
6. A dual rate buckling restrained damper as recited in claim 1, wherein: the two ends of the large yield section (1-3) and the small yield section (1-5) in the inner core (1) need to be chamfered, so that stress concentration is avoided.
7. A dual rate buckling restrained damper as recited in claim 1, wherein: friction plates (4) are arranged on the upper side and the lower side of the outer sleeve (2), two ends of each friction plate (4) are aligned with two ends of the right elastic section (1-6), and a round hole D (4-1) is formed in each friction plate and is aligned with the center of the long round hole (2-2) in the outer sleeve (2); when the small yield section (1-5) deforms, the friction plate (4) is driven to move relative to the outer sleeve (2) to generate friction energy consumption, and the magnitude of the friction force is controlled by changing the pre-tightening force of the second bolt group (3-2).
8. A dual rate buckling restrained damper as recited in claim 7, wherein: the friction plate (4) is made of brass, NAO or carbon fiber.
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| CN202110510985.2A CN113175115B (en) | 2021-05-11 | 2021-05-11 | Double-rigidity buckling restrained damper |
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| CN202110510985.2A CN113175115B (en) | 2021-05-11 | 2021-05-11 | Double-rigidity buckling restrained damper |
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Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1136655A (en) * | 1997-07-14 | 1999-02-09 | Ohbayashi Corp | Damping structure using coned disc spring type friction damper |
| JP2003028235A (en) * | 2001-07-12 | 2003-01-29 | Takenaka Komuten Co Ltd | Axial force type vibration control device usable in both earthquake and wind |
| CN102116055A (en) * | 2009-12-31 | 2011-07-06 | 上海维固工程实业有限公司 | Energy dissipation and shock absorption mechanism |
| JP2012102829A (en) * | 2010-11-11 | 2012-05-31 | Tokai Rubber Ind Ltd | Vibration control damper |
| CN105714952A (en) * | 2016-03-03 | 2016-06-29 | 东南大学 | Bamboo-shaped buckling-restrained brace |
| WO2016167670A1 (en) * | 2015-04-17 | 2016-10-20 | University Of Canterbury | Energy dissipation device |
| CN106760854A (en) * | 2017-01-25 | 2017-05-31 | 东南大学 | Rectilinear laemodipodiform pole power consumption bar |
| CN106836927A (en) * | 2017-01-25 | 2017-06-13 | 东南大学 | Pole power consumption bar |
| CN206458146U (en) * | 2017-01-25 | 2017-09-01 | 东南大学 | Pole power consumption bar |
| CN107165275A (en) * | 2017-06-19 | 2017-09-15 | 四川大学 | A kind of combined anti-seismic bolt connection node |
| CN107842124A (en) * | 2017-11-14 | 2018-03-27 | 东南大学 | A kind of induced damage Observable ring power consumption bar |
| CN108374493A (en) * | 2018-03-06 | 2018-08-07 | 四川大学 | Novel low layer assembled wallboard structure energy dissipating steel plate welding node |
| CN109356298A (en) * | 2018-11-02 | 2019-02-19 | 江苏蓝科减震科技有限公司 | Single order friction-type buckling restrained brace |
| CN109457828A (en) * | 2018-11-16 | 2019-03-12 | 长安大学 | A kind of double constraint self reset curvature-prevention energy dissipation braces |
| CN110725598A (en) * | 2019-09-20 | 2020-01-24 | 云南震安减震科技股份有限公司 | Friction compound type buckling restrained energy dissipation brace |
| CN110792185A (en) * | 2019-10-24 | 2020-02-14 | 四川大学 | Intelligent damper capable of synchronously and automatically monitoring force and displacement |
| KR102125691B1 (en) * | 2020-04-06 | 2020-06-23 | 주식회사 브이테크 | Buckling restrained brace with enhanced damping performance |
| CN111691567A (en) * | 2020-07-15 | 2020-09-22 | 南通蓝科减震科技有限公司 | Novel double-order buckling restrained steel support |
-
2021
- 2021-05-11 CN CN202110510985.2A patent/CN113175115B/en active Active
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1136655A (en) * | 1997-07-14 | 1999-02-09 | Ohbayashi Corp | Damping structure using coned disc spring type friction damper |
| JP2003028235A (en) * | 2001-07-12 | 2003-01-29 | Takenaka Komuten Co Ltd | Axial force type vibration control device usable in both earthquake and wind |
| CN102116055A (en) * | 2009-12-31 | 2011-07-06 | 上海维固工程实业有限公司 | Energy dissipation and shock absorption mechanism |
| JP2012102829A (en) * | 2010-11-11 | 2012-05-31 | Tokai Rubber Ind Ltd | Vibration control damper |
| WO2016167670A1 (en) * | 2015-04-17 | 2016-10-20 | University Of Canterbury | Energy dissipation device |
| CN105714952A (en) * | 2016-03-03 | 2016-06-29 | 东南大学 | Bamboo-shaped buckling-restrained brace |
| CN206458146U (en) * | 2017-01-25 | 2017-09-01 | 东南大学 | Pole power consumption bar |
| CN106836927A (en) * | 2017-01-25 | 2017-06-13 | 东南大学 | Pole power consumption bar |
| CN106760854A (en) * | 2017-01-25 | 2017-05-31 | 东南大学 | Rectilinear laemodipodiform pole power consumption bar |
| CN107165275A (en) * | 2017-06-19 | 2017-09-15 | 四川大学 | A kind of combined anti-seismic bolt connection node |
| CN107842124A (en) * | 2017-11-14 | 2018-03-27 | 东南大学 | A kind of induced damage Observable ring power consumption bar |
| CN108374493A (en) * | 2018-03-06 | 2018-08-07 | 四川大学 | Novel low layer assembled wallboard structure energy dissipating steel plate welding node |
| CN109356298A (en) * | 2018-11-02 | 2019-02-19 | 江苏蓝科减震科技有限公司 | Single order friction-type buckling restrained brace |
| CN109457828A (en) * | 2018-11-16 | 2019-03-12 | 长安大学 | A kind of double constraint self reset curvature-prevention energy dissipation braces |
| CN110725598A (en) * | 2019-09-20 | 2020-01-24 | 云南震安减震科技股份有限公司 | Friction compound type buckling restrained energy dissipation brace |
| CN110792185A (en) * | 2019-10-24 | 2020-02-14 | 四川大学 | Intelligent damper capable of synchronously and automatically monitoring force and displacement |
| KR102125691B1 (en) * | 2020-04-06 | 2020-06-23 | 주식회사 브이테크 | Buckling restrained brace with enhanced damping performance |
| CN111691567A (en) * | 2020-07-15 | 2020-09-22 | 南通蓝科减震科技有限公司 | Novel double-order buckling restrained steel support |
Non-Patent Citations (1)
| Title |
|---|
| 吴清怡等: "长圆孔腹板耗能梁段抗侧刚度及极限承载力计算分析", 《钢结构》 * |
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