CN111945912A - Integral replacement type U-shaped damper with waveform energy dissipation part - Google Patents
Integral replacement type U-shaped damper with waveform energy dissipation part Download PDFInfo
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- CN111945912A CN111945912A CN202010700469.1A CN202010700469A CN111945912A CN 111945912 A CN111945912 A CN 111945912A CN 202010700469 A CN202010700469 A CN 202010700469A CN 111945912 A CN111945912 A CN 111945912A
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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
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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Abstract
The invention relates to an integrally-replaced U-shaped damper with a waveform energy dissipation part, and belongs to the technical field of energy dissipation and shock absorption of civil engineering. The metal damper consists of a plurality of U-shaped energy dissipation pieces, double-layer waveform energy dissipation pieces and two cover plates. The invention is provided based on the design concepts of multi-directional energy consumption, improvement of shear bearing capacity, inhibition of out-of-plane buckling, improvement of structural rigidity, cooperative work of multiple shear energy consumption mechanisms, double insurance mechanisms and the like, and breaks through the limitation of the traditional metal damper. The U-shaped energy consumption units are connected in parallel, so that the multi-directional energy consumption of the damper is effectively realized; through reasonable design, the problem that the damper is not easy to generate plastic energy consumption and needs a main body structure to consume energy during small earthquake is solved; all parts enter plasticity during a major earthquake, the U-shaped energy dissipation part and the double-layer waveform energy dissipation part jointly dissipate energy, a double-insurance mechanism is formed, the shearing-resistant bearing capacity is improved, the energy dissipation performance is stable, and the energy dissipation part only needs to be replaced after the earthquake to recover the function; the metal damper is simple and convenient to replace, has obvious economic benefit, can be effectively combined with the support, and provides lateral force for the support.
Description
Technical Field
The patent relates to an overall change formula U-shaped area wave form power consumption piece attenuator can be used to the earthquake reaction of control structure to improve major structure's anti-seismic performance, belong to civil engineering energy dissipation shock attenuation technical field.
Background
Earthquake is a natural disaster with sudden and destructive properties, and the occurrence of strong earthquake may cause huge economic loss and casualties. China is a frequently earthquake country, and most first-line cities are in earthquake areas. With the increase of the development speed of China, urban population and facilities are concentrated more and more, high-rise buildings are more and more, the traditional anti-seismic strategy is not applicable any more, and the research of novel energy dissipation damping dampers is imperative.
The traditional earthquake-resistant strategy is to realize the function of resisting earthquake action by improving the strength, rigidity, ductility and other properties of the structure, and the metal energy-consuming damper is to dissipate energy by utilizing different forms of plastic hysteresis deformation of metal. Since metal has good hysteresis properties after entering a plastic state and absorbs a large amount of energy during elastic-plastic hysteresis deformation, it is used to manufacture different types and configurations of dissipative dampers.
The traditional metal damper has a single structure, the damper is not yielding in an elastic deformation state under a small earthquake, the energy consumption of a main body structure is still needed, and the energy dissipation and shock absorption effects are poor; the damper enters a plastic energy consumption state under the condition of heavy shock, but only can consume energy by utilizing a single working mechanism.
The existing shear type metal damper is generally a shear type steel plate damper, can only consume energy in a plane, cannot consume energy in other directions under the action of an earthquake, but the earthquake direction is uncertain generally, so that the traditional metal damper cannot achieve an ideal energy consumption effect.
In order to solve the problems of the existing metal damper, the invention provides an integrally-replaced U-shaped damper with a waveform energy dissipation part based on design concepts of multi-directional energy dissipation, improvement of shear bearing capacity, inhibition of out-of-plane buckling, improvement of structural rigidity, cooperative work of multiple shear energy dissipation mechanisms, double insurance mechanisms and the like. The multi-direction energy consumption can be realized when the earthquake from different directions acts through the multi-direction parallel connection of the U-shaped energy consumption units; the combination of the U-shaped energy consumption piece and the double-layer waveform energy consumption piece effectively realizes the cooperative work of two shearing energy consumption mechanisms; by adopting the mode of adopting materials with different yield grades for different parts, a double-insurance mechanism can be realized under the action of different earthquake intensities, and the problem that the main body structure consumes energy under small earthquake and the damper does not participate in energy consumption basically is solved; the two wave-shaped energy dissipation parts are symmetrically arranged and connected by the self-tapping screw, can be mutually constrained and play a role in inhibiting out-of-plane buckling; the horizontal arrangement of the double-layer wave-shaped energy dissipation part can ensure that the damper basically does not bear vertical force, the energy dissipation performance is extremely stable, the adaptability to size errors and defects is strong, and the installation is convenient; the corrugated piece has high lateral stiffness, and the double-layer corrugated energy dissipation piece is arranged in the metal damper, so that the shearing energy dissipation capability and the bearing capacity of the damper can be better improved; the metal damper is simple and convenient to replace, has obvious economic benefit, can be effectively combined with the support, and provides lateral force for the support.
Disclosure of Invention
The invention provides an integrally-replaced U-shaped damper with a waveform energy dissipation part, and aims to solve the problems that an existing metal damper structure system is single in energy dissipation direction, concentrated in yield point, incapable of generating plastic energy dissipation due to small shock, integrally damaged due to large shock, single in energy dissipation mechanism, insufficient in out-of-plane stability and the like.
In order to achieve the purpose, the invention adopts the following technical means:
the utility model provides an energy-consuming piece attenuator of whole change formula U-shaped area wave form which characterized in that: the metal damper consists of a plurality of U-shaped energy dissipation pieces, wave-shaped energy dissipation pieces and two cover plates; wherein, the U-shaped energy dissipation part consists of two straight sections and an arc section; the width-thickness ratio of the U-shaped energy dissipation part is 4-20, the ratio of the thickness to the inner diameter of the arc section is 0.03-0.2, and the length-width ratio of the straight section is 2-8; the waveform energy dissipation part adopts a double-layer waveform energy dissipation part, and the U-shaped energy dissipation part and the double-layer waveform energy dissipation part are welded to form a U-shaped energy dissipation unit; the metal damper is provided based on design concepts such as multi-directional energy consumption, improvement of shear bearing capacity, inhibition of out-of-plane buckling, improvement of structural rigidity, cooperative work of multiple shear energy consumption mechanisms, double insurance mechanisms and the like; the plurality of groups of U-shaped energy consumption units are connected in parallel in multiple directions, so that seismic waves can be decomposed into seismic action in all directions, and the effect of multi-directional energy consumption is achieved under the condition that the seismic direction is random and cannot be determined; the metal damper has different material yield strengths of all parts, and aims to realize the yield of the parts with low yield points in the damper during small earthquakes, and the parts with high yield points are still in an elastic deformation state, so that the energy consumption of a main body structure is reduced, and the effect of the damper is effectively exerted; when the earthquake occurs, all parts in the damper enter a plastic deformation stage, and a U-shaped piece shearing energy dissipation mechanism and a double-layer corrugated piece shearing energy dissipation mechanism work in a cooperative mode to form a double-insurance mechanism.
The double-layer waveform energy dissipation part consists of two symmetrically arranged waveform energy dissipation parts which are connected into a whole through the tapping screw, can be mutually constrained when stressed, inhibits out-of-plane buckling deformation, and has good lateral resistance. The top and the bottom of the double-layer waveform energy dissipation part are welded on the straight section of the U-shaped energy dissipation part, the width-thickness ratio is 35-90, the width-height ratio is 0.6-1.35, and low-yield-point steel with the yield point strength of 100-235 MPa is adopted, so that the hysteresis energy dissipation capacity is good, and the ductility of the structure can be improved. The horizontal arrangement of the double-layer wave-shaped energy dissipation part can ensure that the damper basically does not bear vertical force, the energy dissipation performance is extremely stable, the adaptability to size errors and defects is strong, and the installation is convenient; the wave-shaped energy dissipation piece has good anti-shearing capacity, when the wave-shaped energy dissipation piece bears repeated earthquake action, the double-layer wave-shaped energy dissipation piece can effectively improve the anti-shearing bearing capacity of the metal damper, and the structure can fully utilize the anti-shearing performance of the double-layer wave-shaped energy dissipation piece to consume earthquake energy; in addition, the novel metal damper is used in the shock insulation support, so that the lateral stiffness of the support can be effectively improved, and the energy can be fully consumed.
The wave form of the wave energy dissipation part can be sine wave, triangular wave form, trapezoidal wave form or right-angle wave form; the number of layers of the wave energy dissipation part can be set to be a single layer or a double layer. The wave energy dissipation part can also adopt a single layer, and when the wave energy dissipation part is the single layer, the gravity center line of the wave energy dissipation part and two horizontal central axes of the straight section of the U-shaped energy dissipation part are positioned on the same plane.
The advantages of the patent are mainly shown in the following aspects:
(1) and energy is consumed in multiple directions. The metal damper is formed by connecting a plurality of groups of multi-direction U-shaped energy consumption units in parallel, can decompose seismic waves into seismic action in all directions, and effectively realizes multi-direction dissipation of seismic energy under the condition that the seismic direction is random and cannot be determined.
(2) Multiple shearing energy consumption mechanisms work in a coordinated mode. The U-shaped shearing energy consumption mechanism and the corrugated plate shearing energy consumption mechanism together dissipate seismic energy.
(3) The stress mechanism is clear and definite, pure shearing is taken as the main part, and the establishment and popularization of the design theory are facilitated.
(4) The double-layer waveform energy dissipation parts can be mutually constrained when stressed, and the out-of-plane buckling deformation is inhibited; the rigidity of the wave energy dissipation part is high, the structural rigidity can be improved, and the earthquake reaction of a building structure is reduced. The horizontal arrangement of the wave-shaped energy dissipation piece can ensure that the damper basically does not bear vertical force, and the energy dissipation performance is extremely stable.
(5) The welding of the double-layer waveform energy dissipation piece and the U-shaped energy dissipation piece is finished in a factory by a processing factory, so that the manufacture is convenient, and the precision and the quality of a welding seam can be ensured; due to the arrangement of the double-layer waveform energy dissipation part, the damper has strong adaptability to size errors and defects, and is convenient to install.
(6) Can be combined with other seismic isolation and reduction elements. The lateral stiffness of the support can be effectively improved when the shock insulation support is used in the shock insulation support, and the traditional shock insulation support is helped to bear lateral force.
Drawings
FIG. 1 is a three-dimensional view of an integrally replaceable U-shaped damper with corrugated dissipative members;
FIG. 2 is an exploded view of an integrally replaceable U-shaped damper with corrugated dissipative members;
FIG. 3 is a front view of an integrally replaceable U-shaped damper with corrugated dissipative members;
FIG. 4 is a top view of an integrally replaceable U-shaped damper with corrugated dissipative members;
FIG. 5 is an exploded view of an integrally replaceable U-shaped double-layered corrugated energy dissipating member with a corrugated energy dissipating member damper;
FIG. 6 is a schematic diagram of various types of wave energy dissipation members of an integrally replaceable U-shaped damper with wave energy dissipation members;
Detailed Description
Embodiments of the present invention will be described in detail below with reference to fig. 1 to 6.
As shown in fig. 1 to 6, an integrally replaceable U-shaped damper with a corrugated energy dissipation member comprises the following components:
1-U-shaped energy dissipation part;
2-arc segment;
3-straight section;
4-double-layer wave energy dissipation parts;
5-upper cover plate;
6-lower cover plate;
7-self-tapping screw;
as shown in figures 1-6, an integral replaceable U-shaped damper with a waveform energy dissipation part is characterized in that: the metal damper consists of a plurality of groups of U-shaped double-layer waveform energy consumption units (1) and (4) and two cover plates (5) and (6); the U-shaped double-layer waveform energy consumption units are tightly connected with the two cover plates through welding, and the U-shaped double-layer waveform energy consumption units are connected in parallel; the group of U-shaped double-layer waveform energy consumption units consists of U-shaped energy consumption pieces (1) and double-layer waveform energy consumption pieces (4); the U-shaped energy dissipation part (1) is composed of two straight sections (3) and an arc section (2); the double-layer waveform energy dissipation part is composed of two waveform plates which are connected through a self-tapping bolt (7) and symmetrically arranged, and is welded on the straight section of the U-shaped energy dissipation part, and the central axis of the double-layer waveform energy dissipation part and the central axis of the straight section of the U-shaped energy dissipation part are in the same plane.
Claims (4)
1. The utility model provides an energy-consuming piece attenuator of whole change formula U-shaped area wave form which characterized in that: the damper consists of a plurality of U-shaped energy dissipation pieces, wave-shaped energy dissipation pieces and two cover plates; the U-shaped energy dissipation part is composed of two straight sections and an arc section, the wave energy dissipation part adopts a double-layer wave energy dissipation part, the double-layer wave energy dissipation part is composed of two symmetrically arranged wave energy dissipation parts and is connected into a whole through a self-tapping screw, and the two wave energy dissipation parts can be mutually constrained when stressed to inhibit out-of-plane buckling deformation; the width-thickness ratio of the U-shaped energy dissipation part is 4-20, the ratio of the thickness to the inner diameter of the arc section is 0.03-0.2, and the length-width ratio of the straight section is 2-8; the double-layer waveform energy dissipation part and the U-shaped energy dissipation part are welded to form a U-shaped energy dissipation unit, so that the vertical central axis of the double-layer waveform energy dissipation part and the two horizontal central axes of the straight section of the U-shaped energy dissipation part are in the same plane; the U-shaped energy consumption units are connected in parallel along different directions and are connected with the upper cover plate and the lower cover plate into a whole through welding; the width-thickness ratio of the double-layer waveform energy dissipation part is 35-90, the width-height ratio is 0.6-1.35, and low-yield-point steel with yield point strength of 100-235 MPa is adopted.
2. The damper of claim 1, wherein the damper comprises: the damper is arranged in the shock insulation support.
3. The damper of claim 1, wherein the damper comprises: the wave form of the wave energy dissipation component is selected from sine wave, triangular wave form, trapezoidal wave form or right-angle wave form.
4. The damper of claim 1, wherein the damper comprises: the wave energy dissipation part can also adopt a single layer, and when the wave energy dissipation part is the single layer, the gravity center line of the wave energy dissipation part and two horizontal central axes of the straight section of the U-shaped energy dissipation part are positioned on the same plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010700469.1A CN111945912A (en) | 2020-07-20 | 2020-07-20 | Integral replacement type U-shaped damper with waveform energy dissipation part |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010700469.1A CN111945912A (en) | 2020-07-20 | 2020-07-20 | Integral replacement type U-shaped damper with waveform energy dissipation part |
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| CN111945912A true CN111945912A (en) | 2020-11-17 |
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| CN202010700469.1A Pending CN111945912A (en) | 2020-07-20 | 2020-07-20 | Integral replacement type U-shaped damper with waveform energy dissipation part |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114961037A (en) * | 2022-05-20 | 2022-08-30 | 江苏科技大学 | Vertical bearing-horizontal anti-side separable cold-formed thin-wall section steel combined wall and installation method |
| CN115929095A (en) * | 2022-12-26 | 2023-04-07 | 广州大学 | Metal laminated ring three-dimensional damper and manufacturing method thereof |
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| WO2018208307A1 (en) * | 2017-05-11 | 2018-11-15 | Portland State University | Energy dissipators with rotated members |
| CN208168023U (en) * | 2018-03-20 | 2018-11-30 | 西安建筑科技大学 | The replaceable combination energy consumption tension and compression type mild steel damper of one kind and steel plate shear force wall |
| CN110512764A (en) * | 2019-07-15 | 2019-11-29 | 清华大学 | A kind of double wave shape steel plate wall of make-up connection |
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2020
- 2020-07-20 CN CN202010700469.1A patent/CN111945912A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018208307A1 (en) * | 2017-05-11 | 2018-11-15 | Portland State University | Energy dissipators with rotated members |
| CN207453163U (en) * | 2017-07-24 | 2018-06-05 | 上海应用技术大学 | A kind of sublevel energy consumption metal damper |
| CN207646932U (en) * | 2017-12-19 | 2018-07-24 | 西安建筑科技大学 | A kind of arc panel, corrugated sheet steel and spring assembly consume energy mild steel damper |
| CN208168023U (en) * | 2018-03-20 | 2018-11-30 | 西安建筑科技大学 | The replaceable combination energy consumption tension and compression type mild steel damper of one kind and steel plate shear force wall |
| CN110512764A (en) * | 2019-07-15 | 2019-11-29 | 清华大学 | A kind of double wave shape steel plate wall of make-up connection |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114961037A (en) * | 2022-05-20 | 2022-08-30 | 江苏科技大学 | Vertical bearing-horizontal anti-side separable cold-formed thin-wall section steel combined wall and installation method |
| CN114961037B (en) * | 2022-05-20 | 2023-09-22 | 江苏科技大学 | Vertical bearing-horizontal side-resistant separable cold-formed thin-wall steel combined wall and installation method |
| CN115929095A (en) * | 2022-12-26 | 2023-04-07 | 广州大学 | Metal laminated ring three-dimensional damper and manufacturing method thereof |
| CN115929095B (en) * | 2022-12-26 | 2024-05-24 | 广州大学 | Metal stacked ring three-dimensional damper and manufacturing method thereof |
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