CN106285138A - A kind of self-centering system end connecting device - Google Patents
A kind of self-centering system end connecting device Download PDFInfo
- Publication number
- CN106285138A CN106285138A CN201610824234.7A CN201610824234A CN106285138A CN 106285138 A CN106285138 A CN 106285138A CN 201610824234 A CN201610824234 A CN 201610824234A CN 106285138 A CN106285138 A CN 106285138A
- Authority
- CN
- China
- Prior art keywords
- plate
- self
- friction
- centering system
- inner panel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a kind of self-centering system end connecting device, including two connecting plates, connect two connecting plates friction inner panel without restrained end, be connected to the friction outside plate of friction inner panel both sides, the laminated rubber end plate between two connecting plates.Laminated rubber end plate includes rubber blanket, is arranged on the rubber blanket end plate towards friction inner panel side, is arranged on the interior backing plate of rubber blanket opposite side and two pieces of outer backing plates.On friction inner panel, the longitudinal direction along connecting plate is provided with slotted eye so that friction inner panel and friction outside plate can be along slotted eye Relative sliding.Self-centering system end connects: the restrained end of two connecting plates is welded with the trocar sheath of self-centering system, outer backing plate contacts with the trocar sheath of self-centering system, interior backing plate contacts with the inner sleeve of self-centering system, and the pre-pull bar being arranged in inner sleeve is anchored on end plate after Shi Hanzhang.
Description
Technical field
The invention belongs to field of civil engineering, relate to a kind of self-centering system end for reducing engineering structure earthquake disaster
Connecting connection parts.
Background technology
Earthquake brings the most serious disaster to the mankind.Traditional Aseismic Design uses Ductility Design Method, i.e. exists
Under geological process, by surrender in advance and the destruction of structure division component (such as energy dissipation brace), but entirety is unlikely to lose merit
Can, rely on the plastic deformation of component to dissipate most seismic energy, thus reach to ensure the purpose of agent structure safety.But
Due to the appearance of plastic deformation, cause structure to be prone to produce bigger residual deformation after shake, thus structure is greatly improved
Repair difficulty and expense.
For the residual deformation of control structure, the self-centering system being made up of pre-pull bar, Double-sleeve and end plate can be introduced
In structure.During earthquake, self-centering system addresses is applied to the pretension in pre-pull bar and can effectively overcome the plasticity of energy-consuming parts to become
Shape, thus it is substantially reduced the residual deformation of structure so that it is reach self-centering effect.But tradition self-centering system initial stiffness is very
Greatly, when can cause earthquake, structure produces bigger base shear.In addition affected by casing length mismachining tolerance, tradition self-centering
The initial stiffness of system is difficult to determine so that the basic cycle of structure cannot accurately be estimated, thus affects the design of structure.Due to
Tradition pre-rod material extreme elastic strain is less, can cause expendable plastic strain, even after producing moderate finite deformation
There is the fracture of pre-pull bar, thus cause the loss of pretension, not only affect the self-centering effect of structure, also can form weak floor
Effect.
Summary of the invention
Technical problem: the present invention is directed to existing self-centering system initial stiffness big, affected by casing length mismachining tolerance
Notable and occur, during moderate finite deformation, the defect that pre-pull bar rupture easily occurs, it is provided that a kind of can to reduce the initial the most firm of self-centering system
Degree, reduces the impact of casing length mismachining tolerance, and the self-centering system end that can also be prevented effectively from the fracture of pre-pull bar connects dress
Put.
Technical scheme: the self-centering system end connecting device of the present invention, including two connecting plates being placed in parallel, connections
Described two connecting plates without restrained end friction inner panel, be connected to the friction outside plate of described friction inner panel both sides, be positioned at described two
The laminated rubber end plate being connected as a single entity between root connecting plate and by the two.Laminated rubber end plate include rubber blanket, be arranged on described
Rubber blanket is towards the friction end plate of inner panel side, the interior backing plate being arranged on described rubber blanket opposite side and two pieces of outer backing plates, described
Two pieces of outer backing plates are relatively arranged on the both sides of interior backing plate, described end plate, rubber blanket and interior backing plate are interfixed by bolt, logical
Cross steel card described end plate, rubber blanket and outer backing plate to be interfixed.Friction inner panel with the connected mode of friction outside plate is: described
It is provided with slotted eye on friction inner panel, friction outside plate is provided with bolt hole, slotted eye is laid along the longitudinal direction of connecting plate, bolt is worn
Cross bolt hole and slotted eye makes friction inner panel and friction outside plate be connected as a single entity.
Further, in end connecting device of the present invention, laminated rubber end plate is provided with and matches with two connecting plates
Breach, two connecting plates without restrained end through the breach of laminated rubber end plate.
The self-centering system end connecting device of the present invention with the connected mode of self-centering system is: the pact of two connecting plates
The trocar sheath of Shu Duanyu self-centering system welds, outer backing plate contacts with the trocar sheath of self-centering system, interior backing plate is felt concerned about with making by oneself
The inner sleeve contact united, the pre-pull bar being arranged in inner sleeve are anchored on end plate by anchorage after Shi Hanzhang.
Beneficial effect: the present invention compared with prior art, has the advantage that
(1) the technical program can effectively reduce the initial stiffness of self-centering system.Traditional self-centering system system initial stiffness etc.
In the axial rigidity sum of inside and outside sleeve pipe and pre-pull bar, for avoiding inside and outside sleeve pipe that overall or cripling occurs, sleeve pipe is usual
Having the biggest axial rigidity, the initial stiffness causing self-centering system is bigger.And the technical program have employed laminated rubber end
Plate so that the rubber blanket in end plate is linked togather with inside and outside bunch tube.Owing to the elastic modelling quantity of rubber is the lowest, it is thus possible to significantly
Reduce self-centering system initial stiffness, can effectively control structure earthquake time base shear, reduction expenditure of construction, can drop again
Maximum floor acceleration during low structural earthquake, reduces the non-structural element in building and equipment damage degree.
(2) the technical program can effectively reduce the impact on self-centering system initial stiffness of the casing length mismachining tolerance.?
In traditional self-centering system system, due to the existence of casing length mismachining tolerance, the sleeve pipe that length is shorter after applying pretension
Two ends cannot contact with both sides end plate simultaneously so that the initial stiffness of self-centering system differs relatively big with theoretical value, thus causes
The basic cycle of structure is difficult to determine, the design to structure impacts.And the technical program have employed laminated rubber end plate, and
And laminated rubber end plate is contacted with trocar sheath and inner sleeve with interior backing plate by outer backing plate respectively.Due to rubber elastic modelling quantity relatively
Low so that the shorter sleeve pipe of length also can contact with both sides end plate simultaneously, thus effectively reduces casing length mismachining tolerance pair
The impact of self-centering system initial stiffness.
(3) the technical program can be prevented effectively from the fracture of pre-pull bar.Compared with connecting with traditional self-centering system end, this
Technical scheme is due to friction safety, and when self-centering system axle power reaches its force of sliding friction, rub safety
Just start, and self-centering system body does not continues to deformation.Therefore when structure designs, when only need to calculate the fracture of pre-pull bar pair
The self-centering system axle power limit value answered, and take the force of sliding friction of friction safety less than this value, just can prevent pre-pull bar
Fracture, thus ensure while control structure residual deformation, it is to avoid the structural weak effect layer caused due to the fracture of pre-pull bar.
(4) the technical program can effectively control the greatest axis power of self-centering system.Due to tradition self-centering system end
Connect and only play connection self-centering system and agent structure the effect of transmission internal force, and self-centering system axle power can not be controlled.
Under big shake effect, owing to moderate finite deformation occurs in structure, and cause self-centering system axle power excessive, can be to adjacent node and component
Have a negative impact, even cause the local failure of structure.And the technical program is due to friction safety, when friction is protected
After danger device starts, the axle power of self-centering system is not further added by, thus avoids the destruction of adjacent members, advantageously ensures that big shake
The globality of lower structure.
Accompanying drawing explanation
Fig. 1 is the front view of apparatus of the present invention；
Fig. 2 is the organigram after apparatus of the present invention are connected with self-centering system；
Fig. 3 is the A-A profile of Fig. 2；
Fig. 4 is the B-B profile of Fig. 2；
Fig. 5 is the C-C profile of Fig. 2；
Fig. 6 is the front view of friction inner panel；
Fig. 7 is the side view of friction inner panel；
Fig. 8 is the front view of friction outside plate；
Fig. 9 is the side view of friction outside plate；
Figure 10 is laminated rubber end plate front view；
Figure 11 is laminated rubber end plate rearview；
Figure 12 is laminated rubber end plate side view；
Figure 13 is rubber blanket front view；
Figure 14 is rubber blanket side view；
Figure 15 is connecting plate front view；
Figure 16 is connecting plate side view；
Figure 17 is the in situ schematic view of the present invention；
Figure 18 is the operating diagram of apparatus of the present invention tension；
Figure 19 is the operating diagram of apparatus of the present invention pressurized.
Figure has: connecting plate 1, friction inner panel 2, slotted eye 21, friction outside plate 3, bolt hole 31, laminated rubber end plate 4, end plate
41, rubber blanket 42, interior backing plate 43, outer backing plate 44, steel card 45, breach 46, self-centering system garment pipe 5, self-centering system inner sleeve
Pipe 6, pre-pull bar 7, anchorage 8.
Detailed description of the invention
Below in conjunction with Figure of description, technical scheme is described in detail.
As shown in Fig. 1 ~ Fig. 5 and Figure 10 ~ Figure 16, the self-centering system end connecting device of the present invention, parallel including two
The connecting plate 1 placed, connects two connecting plates 1 friction inner panel 2 without restrained end, is connected to outside the friction of friction inner panel 2 both sides
Plate 3, the laminated rubber end plate 4 being connected as a single entity between two connecting plates 1 and by the two.Laminated rubber end plate 4 includes rubber
Pad 42, is arranged on the rubber blanket 42 end plate 41 towards friction inner panel 2 side, is arranged on interior backing plate 43 He of rubber blanket 42 opposite side
Two pieces of outer backing plates 44, two pieces of outer backing plates 44 are relatively arranged on the both sides of interior backing plate 43, and ensure two pieces of outer backing plates 44 and interior backing plate
There is gap between 43, by bolt, end plate 41, rubber blanket 42 and interior backing plate 43 are interfixed, by steel card 45 by end plate
41, rubber blanket 42 and outer backing plate 44 interfix.The breach matched with two connecting plates 1 it is provided with on laminated rubber end plate 4
46, to ensure the breach 46 that can pass laminated rubber end plate 4 without restrained end of connecting plate 1, and connecting plate 1 can be along self-centering system
Axially and laminated rubber end plate 4 Relative sliding.
As shown in Fig. 1 ~ Fig. 9, friction inner panel 2 with the connected mode of friction outside plate 3 is: be provided with slotted eye on friction inner panel 2
21, friction outside plate 3 is provided with bolt hole 31, slotted eye 21 is laid, by bolt passing through bolt hole 31 He along the longitudinal direction of connecting plate 1
Slotted eye 21 makes friction inner panel 2 and friction outside plate 3 be connected as a single entity.Bolt can slide in slotted eye 21, tightens after screw in friction
Frictional force can be produced between plate 2 and friction outside plate 3, rub when external force is quiet more than the maximum between friction inner panel 2 and friction outside plate 3
After wiping power, friction inner panel 2 and friction outside plate 3 can form friction safety along slotted eye 21 Relative sliding.Make by oneself based on support
Feel concerned about extreme elastic stress and the area of section of pre-pull bar in system, obtain the xial feed of self-centering system during the fracture of pre-pull bar,
Then the moment of torsion being applied on bolt by change makes the frictional force between friction inner panel 2 and friction outside plate 3 be less than this axle power, with
Avoid owing to internal force is excessive and cause the fracture of pre-pull bar.
As shown in Fig. 2 ~ Fig. 5, the self-centering system end connecting device of the present invention with the connected mode of self-centering system is:
The restrained end of two connecting plates 1 is welded with the trocar sheath 5 of self-centering system, and outer backing plate 44 connects with the trocar sheath 5 of self-centering system
Touching, interior backing plate 43 contacts with the inner sleeve 6 of self-centering system, and the pre-pull bar 7 being arranged in inner sleeve 6 is logical after Shi Hanzhang
Cross anchorage 8 to be anchored on end plate 41.The self-centering system other end both can use traditional self-centering system end connecting device, also
The self-centering system end connecting device of the present invention can be used, but the connecting plate of the self-centering system other end need to weld with inner sleeve 6
Connect, to ensure that, along with the deformation of structure, the connection of self-centering system two ends can drive trocar sheath 5 and inner sleeve 6 to produce mutually respectively
The changing of the relative positions, makes self-centering system start-up, provides rigidity and self-centering restoring force for structure.
The operation principle of the self-centering system end connecting device of the present invention is as shown in Figure 17 ~ Figure 19, when self-centering system
When not bearing external load (see Figure 17), owing to pre-pull bar 7 is applied with initial prestress, by the deformation of rubber blanket 42, can make
The trocar sheath 5 that there is casing length mismachining tolerance can contact with laminated rubber end plate 4 with inner sleeve 6.When self-centering system is subject to
(see Figure 18) when drawing, the self-centering system end connecting device of the present invention can drive trocar sheath 5 to move right and pushing tow interlayer rubber
Glue end plate 4, and the self-centering system end connecting device of the other end can drive inner sleeve 6 to be moved to the left and with laminated rubber end plate
4 depart from, and outer backing plate 44 can extrude the rubber blanket 42 of its underpart under the pushing tow of trocar sheath 5, and inner sleeve 6 departs from interior backing plate 43
After, the rubber blanket 42 of interior backing plate 43 bottom can relax.When self-centering system pressurized (see Figure 19), the self-centering system of the present invention
End connecting device can drive trocar sheath 5 to be moved to the left and depart from laminated rubber end plate 4, and the self-centering system end of the other end
Connecting connection parts can drive inner sleeve 6 to move right and pushing tow laminated rubber end plate 4, and interior backing plate 43 is under the pushing tow of inner sleeve 6
The rubber blanket 42 of its underpart can be extruded, and after trocar sheath 5 departs from outer backing plate 44, the rubber blanket 42 of outer backing plate 44 bottom can pine
Relax.No matter self-centering system is tension or in compression, and rubber blanket 42 all has local compression and relaxes, so that the rigidity of rubber blanket 42
Can be connected in series in self-centering system.Friction safety operation principle is: when under geological process, malformation is less, deformed
Entirely concentrate on self-centering system, and the safety that rub do not start；When under geological process, malformation is bigger, first deformation collects
In in self-centering system, after self-centering system axle power reaches to rub the maximum static friction force between inner panel 2 and friction outside plate 3,
Friction inner panel 2 and friction outside plate 3 just produce Relative sliding, and self-centering system axle power is not further added by, and deformation concentrates on friction insurance
Device, on the one hand avoids the fracture of pre-pull bar, on the other hand controls the greatest axis power of self-centering system, prevents adjacent segments
Point and component have adverse effect on.
Above-described embodiment is only the preferred embodiment of the present invention, it should be pointed out that: for those skilled in the art
For, under the premise without departing from the principles of the invention, it is also possible to make some improvement and equivalent, these are to right of the present invention
Require improve with equivalent after technical scheme, each fall within protection scope of the present invention.
Claims (2)
1. a self-centering system end connecting device, it is characterised in that this device includes two connecting plates being placed in parallel
(1), connect described two connecting plates (1) without restrained end friction inner panel (2), be connected to rubbing of described friction inner panel (2) both sides
The laminated rubber end plate (4) wipe outside plate (3), being positioned between described two connecting plates (1) and the two being connected as a single entity；
Described laminated rubber end plate (4) includes rubber blanket (42), is arranged on described rubber blanket (42) towards friction inner panel (2) side
End plate (41), the interior backing plate (43) being arranged on described rubber blanket (42) opposite side and two pieces of outer backing plates (44), outside described two pieces
Backing plate (44) is relatively arranged on the both sides of interior backing plate (43), by bolt by described end plate (41), rubber blanket (42) and interior backing plate
(43) interfix, by steel card (45), described end plate (41), rubber blanket (42) and outer backing plate (44) are interfixed；
Described friction inner panel (2) with the connected mode of friction outside plate (3) is: be provided with slotted eye on described friction inner panel (2)
(21), friction outside plate (3) is provided with bolt hole (31), slotted eye (21) is laid along the longitudinal direction of connecting plate (1), bolt is passed
Bolt hole (31) and slotted eye (21) make friction inner panel (2) and friction outside plate (3) be connected as a single entity.
Self-centering system end connecting device the most according to claim 1, it is characterised in that described laminated rubber end plate
(4) be provided with the breach (46) matched with two connecting plates (1) on, two connecting plates (1) without restrained end through interlayer rubber
The breach (46) of glue end plate (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610824234.7A CN106285138B (en) | 2016-09-14 | 2016-09-14 | A kind of self-centering system end connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610824234.7A CN106285138B (en) | 2016-09-14 | 2016-09-14 | A kind of self-centering system end connecting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106285138A true CN106285138A (en) | 2017-01-04 |
| CN106285138B CN106285138B (en) | 2018-12-28 |
Family
ID=57712535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610824234.7A Active CN106285138B (en) | 2016-09-14 | 2016-09-14 | A kind of self-centering system end connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106285138B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109610667A (en) * | 2018-12-13 | 2019-04-12 | 大连理工大学 | A kind of truss node plate type energy absorption brace |
| CN111733994A (en) * | 2020-06-11 | 2020-10-02 | 贵州理工学院 | Self-centering friction energy dissipation support for large-deformation pulley block |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2926358Y (en) * | 2006-05-10 | 2007-07-25 | 滕军 | Dissipative damping wafer for decreasing large-span or overhanging structure vibration |
| CN101761145A (en) * | 2009-12-21 | 2010-06-30 | 长沙理工大学 | Compound energy-consumption supporting member for automatically recovering axis centering function |
| KR20110090722A (en) * | 2010-02-03 | 2011-08-10 | 동일고무벨트주식회사 | Vibration damper using inter-story drift of rahmen frame |
| CN102808464A (en) * | 2012-07-31 | 2012-12-05 | 东南大学 | Fiber pre-stretched rod type self-centering steel buckling-restrained brace |
| CN104831826A (en) * | 2015-04-30 | 2015-08-12 | 东南大学 | Lap-jointed self-centering buckling-restrained brace |
| CN104947824A (en) * | 2015-04-30 | 2015-09-30 | 东南大学 | Overlapping self-centering frictional energy-dissipating brace |
-
2016
- 2016-09-14 CN CN201610824234.7A patent/CN106285138B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2926358Y (en) * | 2006-05-10 | 2007-07-25 | 滕军 | Dissipative damping wafer for decreasing large-span or overhanging structure vibration |
| CN101761145A (en) * | 2009-12-21 | 2010-06-30 | 长沙理工大学 | Compound energy-consumption supporting member for automatically recovering axis centering function |
| KR20110090722A (en) * | 2010-02-03 | 2011-08-10 | 동일고무벨트주식회사 | Vibration damper using inter-story drift of rahmen frame |
| CN102808464A (en) * | 2012-07-31 | 2012-12-05 | 东南大学 | Fiber pre-stretched rod type self-centering steel buckling-restrained brace |
| CN104831826A (en) * | 2015-04-30 | 2015-08-12 | 东南大学 | Lap-jointed self-centering buckling-restrained brace |
| CN104947824A (en) * | 2015-04-30 | 2015-09-30 | 东南大学 | Overlapping self-centering frictional energy-dissipating brace |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109610667A (en) * | 2018-12-13 | 2019-04-12 | 大连理工大学 | A kind of truss node plate type energy absorption brace |
| CN111733994A (en) * | 2020-06-11 | 2020-10-02 | 贵州理工学院 | Self-centering friction energy dissipation support for large-deformation pulley block |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106285138B (en) | 2018-12-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106284727B (en) | A kind of self-centering buckling restrained brace end connecting device | |
| CN104947824B (en) | A kind of bridging type self-centering friction damped braced | |
| CN106567324A (en) | All-steel self-restoring buckling-restrained brace based on disc spring | |
| CN102808464B (en) | Fiber pre-stretched rod type self-centering steel buckling-restrained brace | |
| CN105155710B (en) | A kind of Self-resetting mild steel energy dissipation support | |
| US20200011051A1 (en) | Buckling-restrained brace with flat energy dissipation element, building and assembly method | |
| CA2973546C (en) | Impact energy absorber | |
| CN106499081B (en) | A kind of coupling beam wind resistance antishock device | |
| CN104831826B (en) | Lap-jointed self-centering buckling-restrained brace | |
| CN106285138A (en) | A kind of self-centering system end connecting device | |
| CN107366373A (en) | A kind of steel plate shear force wall with Self-resetting energy dissipation brace | |
| CN102852245A (en) | Fiber pre-drawing-rod type self-centering round tube buckling restrained support | |
| KR101541845B1 (en) | Brace damper for energy dissipation | |
| CN109723159B (en) | Full-length constraint weldless buckling constraint support | |
| JP7017879B2 (en) | A bridge equipped with a function-separated shock absorber and a function-separated shock absorber | |
| CN106400997B (en) | A kind of self-centering buckling restrained brace end connecting device of round tube | |
| CN210712520U (en) | Assembled buckling-restrained brace device for improving anti-seismic performance of bridge | |
| CN205573859U (en) | Anti -collision beam structure that possesses buffer function | |
| CN103711224B (en) | A kind of four steel pipe external application batten plate formula cross variable-cross-sectisteel steel core displacement-limited with dissipation curvature-prevention support components | |
| CN205677328U (en) | The diamond-shaped cross-section two-stage surrenders anti-buckling support | |
| CN105040852A (en) | Prestress viscoelastic damper | |
| CN110685484A (en) | Viscoelastic self-resetting support | |
| CN105927019A (en) | Square-section buckling-preventing support with two-stage yielding | |
| CN114250881A (en) | '5 + 4' orthogonal viscoelastic damping device | |
| JP2018017249A (en) | Vibration control device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |