CN103132599B - Buckling proof shock insulation support for supporting rubber gasket - Google Patents
Buckling proof shock insulation support for supporting rubber gasket Download PDFInfo
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- CN103132599B CN103132599B CN201110391294.1A CN201110391294A CN103132599B CN 103132599 B CN103132599 B CN 103132599B CN 201110391294 A CN201110391294 A CN 201110391294A CN 103132599 B CN103132599 B CN 103132599B
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- buckling
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- shock insulation
- buckling support
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Abstract
The invention relates to a damping device, in particular to a damping device of buckling proof supporting. The buckling proof shock insulation support for a supporting rubber gasket comprises frames (1), a shock insulation layer is arranged between the frames (1), rubber shock insulation support bodies are arranged on the shock insulation layer, a buckling proof supporting rod (3) is arranged between the rubber shock insulation support bodies (2) and respectively connected with the frames (1). The frames are convenient to install and disassemble, strong in energy-consumption capacity, and can be widely applied to shockproof and anti-seismic fields.
Description
Technical field
The present invention relates to a kind of damping device, particularly relate to a kind of damping device of anti-buckling support.
Background technology
Passive energy dissipation technology, by arranging passive energy-dissipating device in the structure, consumes the seismic energy originally consumed by structural element (such as beam-column node), significantly reduces the deformation and damage of structure.Shock insulation is that one building flourish over nearly 30 years and engineering structures resist earthquake disaster comparatively effective method.It is by arranging Seismic Isolation of Isolation Layer to isolate and dissipation seismic energy between superstructure and basis, to reduce seismic energy to top structural transmission, the earthquake response of structure is alleviated, thus makes structure not damage in earthquake or not collapse.The flexible layer of the principle first shock isolation system of seismic isolation technology makes the vibration period of structure strengthen and the predominant period remotely shaken, its two damping being increased structural system.Basis is larger with the slippage of building, and seismic forces is less, and damping force is larger, and slippage is less.This is the theoretical basic point of departure of isolation structure.For the object enabling isolation structure device reach shock insulation vibration damping preferably, device need possess condition: 1) have larger vertical bearing capacity; 2) there is less horizontal rigidity; 3) there is the ability of automatically reseting; 4) provide larger damping, there is larger energy dissipation capacity.Conventional shock insulation mode mainly contains the mode of base-isolated structure, sliding isolation and other shock insulations as swung shock insulation, suspention shock insulation, helical steel springs shock insulation etc.Base Isolation Technology is simple, dependable performance, very promising.
Shock insulation is domestic and international investigation and application Passive Control mode the earliest, defined more complete system, many countries obtain application in the world: as seismic isolation technology is successfully applied in house, bridge, atomic energy nuclear power station by the states such as Japan, the U.S., New Zealand, Italy, Canada; Wherein Japan is the country adopting seismic isolation technology maximum, and existing house, hundreds of building adopts seismic isolation technology; The U.S. is built the Isolating Building of building more than 20 and more than 20 Isolated Bridges; China has nearly 200 houses, building and some bridges have employed seismic isolation technology.The house collapse that Japanese 311 violent earthquakes in 2011 cause is little, and its reason is just that Japan's great majority building have employed seismic isolation technology.
Common support can improve the anti-side rigidity of structure, be widely used in frame construction, but easily there is flexing phenomenon during common support pressurized, under geological process, supporting unstability makes its energy dissipation capacity and anti-side rigidity sharply decline, have a strong impact on the anti-seismic performance of structure, traditional method improves anti-seismic performance by strengthening the cross section supported, but still can not ensure flexing not to occur when being supported on large shake.In order to address this problem, some scholar proposes to arrange confinement element in support periphery and suppresses its flexing, is a kind of novel dissipative member.
Anti-buckling support is considered to up-and-coming a kind of energy dissipation brace, and anti-buckling support is a kind of a kind of energy-dissipating device that can prevent from supporting flexing.The research of anti-buckling support is then at the early-stage at home, this energy consumer has that tonnage is large, energy dissipation capacity by force, not by the advantage of frequency influence.Anti-buckling support is displacement relationship type energy consumer, and combine with seismic isolation technology the strong point that can give full play between the two, proposes anti-buckling support rubber shock isolating pedestal.
Summary of the invention
Technique effect of the present invention can overcome above-mentioned defect, and provide a kind of anti-buckling support rubber cushion shock isolating pedestal, it allows larger plastic strain under responsive to axial force, can be reached the object of power consumption by this distortion.
For achieving the above object, the present invention adopts following technical scheme: it comprises framework, is provided with Seismic Isolation of Isolation Layer between framework, and Seismic Isolation of Isolation Layer is provided with rubber earthquake isolation support, is provided with anti-buckling support bar between rubber earthquake isolation support, and anti-buckling support bar is connected with framework respectively.
The neoprene bearing of this system belongs to damping vibration attenuation category, be distinguishing with general base isolation, the mechanism of general basic vibration isolation by isolation mounting, is extended the natural vibration period of structure, avoids the predominant period of earthquake motion, increase the damping of structure, reduce the acceleration response of structure.Rubber vibration isolation seating is set between Platform Deck and jacket end cap as vibration insulation.Such distortion just mainly concentrates on vibration insulation.Anti-buckling support is set at identical absolute altitude place, jointly forms anti-buckling support vibration-isolating system with rubber vibration isolation seating.
Anti-buckling support bar comprises sleeve pipe and is arranged on the central layer in sleeve pipe.Buckling restrained brace is also known as undonded prestressed concrete, that a kind of new steel structure supports, also be a kind of energy dissipation brace, the center of buckling restrained brace is central layer, complete buckling during for avoiding central layer pressurized, namely can reach surrender when tension and pressurized, central layer is placed in a sleeve pipe, then perfusion mortar in sleeve pipe.In order to reduce or eliminate central layer by the power passing to mortar during axle power, and due to poisson effect, central layer can expand in pressurized situation, and therefore heap sand pulp layer between sleeve pipe and central layer, arranges air space or non-cohesive material layer between screed and central layer.Like this, also can reach when this is supported on pressurized and surrender completely, make support compression bearing suitable with tensile capacity, overcome the defect of traditional support compressive buckling, improve support bearing ability.
Central layer is plate shaped or cross or I-shaped or tubular or square-tube-shaped.
Common support framework is that support and post framework resist geological process jointly, and under large earthquake situations condition, support and beam, post all want damaged.Like this, after large shake, building recycling is impossible, and rehabilitation expense is very high.Buckling-restrained braces is then different, and it is under geological process, and only buckling restrained brace central layer enters plasticity and consumes energy, and other agent structure still keeps elastic stage.After geological process, only need change buckling-restrained central layer, greatly reduce the rear maintenance cost of shake like this.
The principle of anti-buckling support is: the responsive to axial force that braced structures is born under geological process is all born by the core of centre of support, core surrenders power consumption under pulling force and pressure effect, and concrete in peripheral steel pipe and sleeve pipe or the bending restriction of mortar lifting supply core, flexing when avoiding core pressurized.Due to poisson effect, core can expand when pressurized, between core and mortar, be therefore provided with one deck non-cohesive material or very narrow and small air layer, avoids core to contact with tied mechanism and the frictional force caused forces constraint mechanism to bear axial force.
Anti-buckling can reaching when being supported on tension and pressurized is surrendered and flexing is not occurred, more traditional is supported with more stable mechanical property, anti-buckling support through appropriate design has high rigidity and good hysteretic energy ability, therefore, buckling-restrained energy-dissipation has the advantage of common support and hysteresis type dissipative cell, has good using value.
Form anti-buckling support Seismic Isolation of Isolation Layer, the large deformation of Seismic Isolation of Isolation Layer can be made full use of, promote that anti-buckling support gives full play to power consumption effect, increase power consumption.Because anti-buckling support is displacement relationship type damper, only have increase displacement could increase power consumption, Seismic Isolation of Isolation Layer is that giving full play to of anti-buckling support is laid a good foundation.
This frame installation facilitates, be convenient to dismounting, and its energy dissipation capacity is strong, has shockproof, antidetonation application widely.
Accompanying drawing explanation
Fig. 1 is embodiments of the invention 1 contour structures schematic diagram;
Fig. 2 is the core plate structure schematic diagram of embodiments of the invention 1;
Fig. 3 is embodiments of the invention 1 core plate structure schematic diagram;
Fig. 4 is embodiments of the invention 2 core plate structure schematic diagram;
Fig. 5 is embodiments of the invention 3 core plate structure schematic diagram;
Fig. 6 is embodiments of the invention 4 core plate structure schematic diagram;
Fig. 7 is embodiments of the invention 5 core plate structure schematic diagram.
In figure: 1. framework; 2. rubber earthquake isolation support; 3. anti-buckling support bar; 4. sleeve pipe; 5. central layer; 6. screed; 7. air space; 8. non-cohesive material layer.
Detailed description of the invention
Embodiment 1
As shown in Figure 1 and Figure 2, device comprises framework 1, is provided with Seismic Isolation of Isolation Layer between framework 1, and Seismic Isolation of Isolation Layer is provided with rubber earthquake isolation support 2, is provided with anti-buckling support bar 3 between rubber earthquake isolation support 2, and anti-buckling support bar 3 is connected with framework 1 respectively.
Anti-buckling support bar 3 comprises sleeve pipe 4 and is arranged on the central layer 5 in sleeve pipe 4.As shown in Figure 3, central layer 5 is cross.Heap sand pulp layer 6 between sleeve pipe 4 and central layer 5, arranges air space 7 between screed 6 and central layer 5.
Embodiment 2
As shown in Figure 4, central layer 2 is I-shaped.
The other the same as in Example 1.
Embodiment 3
As shown in Figure 5, central layer 2 is plate shaped, arranges non-cohesive material layer 8 between screed 6 and central layer 5.
The other the same as in Example 1.
Embodiment 4
As shown in Figure 6, central layer 2 is tubular, arranges non-cohesive material layer 8 between screed 6 and central layer 5.
The other the same as in Example 1.
Embodiment 5
As shown in Figure 7, central layer 2 is square-tube-shaped.
The other the same as in Example 1.
Claims (5)
1. an anti-buckling support rubber cushion shock isolating pedestal, comprise framework (1), it is characterized in that, framework has Seismic Isolation of Isolation Layer between (1), Seismic Isolation of Isolation Layer is provided with rubber earthquake isolation support (2), be provided with anti-buckling support bar (3) between rubber earthquake isolation support (2), anti-buckling support bar (3) is connected with framework (1) respectively; Anti-buckling support bar (3) comprises sleeve pipe (4) and is arranged on the central layer (5) in sleeve pipe (4).
2. anti-buckling support rubber cushion shock isolating pedestal according to claim 1, is characterized in that, central layer (5) is plate shaped or cross or I-shaped or tubular or square-tube-shaped.
3. anti-buckling support rubber cushion shock isolating pedestal according to claim 2, is characterized in that, heap sand pulp layer (6) between sleeve pipe (4) and central layer (5).
4. anti-buckling support rubber cushion shock isolating pedestal according to claim 3, is characterized in that, arranges air space (7) between screed (6) and central layer (5).
5. anti-buckling support rubber cushion shock isolating pedestal according to claim 3, is characterized in that, arranges non-cohesive material layer (8) between screed (6) and central layer (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110391294.1A CN103132599B (en) | 2011-11-30 | 2011-11-30 | Buckling proof shock insulation support for supporting rubber gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110391294.1A CN103132599B (en) | 2011-11-30 | 2011-11-30 | Buckling proof shock insulation support for supporting rubber gasket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103132599A CN103132599A (en) | 2013-06-05 |
| CN103132599B true CN103132599B (en) | 2015-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110391294.1A Expired - Fee Related CN103132599B (en) | 2011-11-30 | 2011-11-30 | Buckling proof shock insulation support for supporting rubber gasket |
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| Country | Link |
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| CN (1) | CN103132599B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401209A (en) * | 2016-05-26 | 2017-02-15 | 南京长江都市建筑设计股份有限公司 | Assembling integral type framework buckling-prevention supporting structure |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6475750A (en) * | 1987-09-16 | 1989-03-22 | Toshiba Corp | Earthquakeproof device for structure |
| JP2984710B2 (en) * | 1990-02-23 | 1999-11-29 | 東急建設株式会社 | Seismic isolation / vibration isolation system for structures |
| CN1305044A (en) * | 2001-03-02 | 2001-07-25 | 陆建衡 | Combined anti-earthquake mechanism |
| CN101736909A (en) * | 2009-12-07 | 2010-06-16 | 广州大学 | Method for restoring building construction with bottom frame posts damaged by vibration |
| CN201560505U (en) * | 2009-12-11 | 2010-08-25 | 广州大学 | Elevator shaft structure of building with interlayer seismic isolation |
| CN201730214U (en) * | 2010-06-24 | 2011-02-02 | 青岛理工大学 | Self-reset anti-flexure support device |
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- 2011-11-30 CN CN201110391294.1A patent/CN103132599B/en not_active Expired - Fee Related
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| CN103132599A (en) | 2013-06-05 |
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