CN107558614A - A kind of frictional slip device for underground subway station center pillar - Google Patents
A kind of frictional slip device for underground subway station center pillar Download PDFInfo
- Publication number
- CN107558614A CN107558614A CN201710808633.9A CN201710808633A CN107558614A CN 107558614 A CN107558614 A CN 107558614A CN 201710808633 A CN201710808633 A CN 201710808633A CN 107558614 A CN107558614 A CN 107558614A
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- star
- plate
- strip
- center pillar
- strip connected
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Abstract
The invention discloses a kind of frictional slip device for underground subway station center pillar, including sliding board component and contact board component, sliding board component includes lower connecting plate and infrabasal plate, the upper surface of infrabasal plate is provided with strip connected in star, annular sealing strip and oil filler point, infrabasal plate is internally provided with interface channel, interface channel connects the oil filler point with the strip connected in star, and strip inside grooves are provided with sliding pearl, are provided at both ends with sealing block；Contact board component includes mirror face stainless steel plate, upper substrate and upper junction plate, mirror face stainless steel plate is fixedly mounted on the lower surface of the upper substrate, the minute surface of mirror face stainless steel plate is contacted towards the sliding pearl and with the sliding pearl and the annular sealing strip, and upper junction plate is fixed on the upper surface of the upper substrate.Underground subway station beam column can be reduced the horizontal distortion for acting on center pillar, mitigate the destruction that underground structure is likely to occur in earthquake significantly by frictional slip device slidably under geological process.
Description
Technical field
The present invention relates to the construction field of construction of underground structure, more particularly, to a kind of for underground subway station center pillar
Frictional slip device.
Background technology
In recent years, with the continuous propulsion of countries in the world urbanization process, domestic and foreign scholars are gradually recognized to develop
The underground space is by as important developing direction.Underground structure is in urban construction, communications and transportation, defence engineering, hydraulic engineering etc.
Every field has obtained more and more extensive application, such as railway tunnel, subway engineering, market place builet below the ground, air defence work etc..Put into practice table
Bright, 21 century is the century of underground space development, and the exploitation of the underground space at present and the construction of underground structure are
Worldwide enter the peak period of fast development.
For field of urban traffic, the mass rapid transit system using subway engineering as backbone is solving city friendship
Indispensable effect is played in logical transportation problem.Although the development of underground engineering is increasingly flourishing, underground engineering also face
Face and challenge --- the effect of earthquake.Particularly in 7.2 grades of Japanese Osaka-Kobe earthquakes of nineteen ninety-five, Kobe city underground structure there occurs
A large amount of underground engineerings such as the destruction of most serious since the dawn of human civilization, subway, underground parking, subterranean tunnel and subterranean commercial area occur
Heavy damage.The most interestingly destruction of subway station, 5 subway stations and about 3km Subway Tunnel are shared in earthquake
Tunnel destroys, wherein the destruction for opening subway station greatly is the most serious, the center pillar of more than half caves in completely, causes top plate to collapse
As many as collapse destruction and the sedimentation of upper overburden layer, largest settlement is up to 2.5m.Correlative study shows that vertical seismic motion is likely to be and drawn
The key factor that underground structure destroys is played, particularly, for Shallow-buried Underground Structure situation, the overlying soil body may be at the beginning of geological process
Failure by shear occurs for stage beginning, now, it with underground structure around other soil bodys be not one it is continuous integrally, follow-up
Earthquake response in, its effect be only be stacked on underground structure top board with surrounding soil occur Weak link cumulose soil (class
It is similar to backfill soil body situation) effect, effect of contraction and earthquake response on underground structure influence to be also differ completely from the continuous soil body
Corresponding situation.Vertical applied force evaluation of the vertical inertia force effect of the overlying soil body to the critical support component of underground structure can produce
Extreme influence, the axial compression ratio of support column is actually changed, so as to change the shear strength of support column and deformation performance.
For the structural seismic response stress of underground, the shear strength of support column improve and ultimate deformation ability reduce be it is unfavorable,
This means support column will share more due to soil layer deform and act on underground structure level to shearing, meanwhile, its
The reduction of ultimate deformation ability causes it to be destroyed prior to side wall, and then causes the whole of top plate and underground structure system
Body damages.
The failure mechanism of seismic calamity and underground structure of the present invention based on underground structure, propose one kind with being used for underground
The frictional slip device of iron station center pillar, to substitute the common bean column node integrally consolidated in traditional underground structure.Pass through ring
Shape sealing joint strip surrounds the gap between upper and lower substrate, to prevent the grease in infrabasal plate from leaking and prevent that dust from entering,
Ensure the service behaviour of frictional slip device.The upper and lower substrate of the device can be by sliding pearl slidably under geological process so that
The interlayer relative deformation of underground subway station structure is not directly applied to center pillar, i.e., center pillar is while vertical bearing capacity is constant
Horizontal distortion effectively reduces, and so as to ensure that the security performance of underground structure critical support component in seismic process, subtracts significantly
The destruction that light underground structure is likely to occur in earthquake.
The content of the invention
Underground structure eaerthquake damage mechanism shows that the center pillar of traditional underground structure undertakes under geological process with failure mode
Too high vertical load, cause it to be destroyed because of horizontal deformation deficiency, and then cause the overall disrepair of structure.Mitigate underground
One important measures of the earthquake disaster of structure are to reduce the horizontal distortion that structural key supporting member is reached in seismic process.
In order to solve the above technical problems, the technical solution adopted by the present invention is a kind of rubbing for underground subway station center pillar
Wipe smooth moving device, it is characterised in that including sliding board component and contact board component, wherein,
The slip board component includes lower connecting plate and infrabasal plate, and the infrabasal plate is fixed on the upper end of the lower connecting plate
On face；The upper surface of the infrabasal plate is provided with strip connected in star, annular sealing strip and oil filler point, and the inside of the infrabasal plate is set
Interface channel is equipped with, the interface channel connects the oil filler point with the strip connected in star；The strip inside grooves
It is provided with sliding pearl, strip connected in star is provided at both ends with sealing block, the upper table of the upper surface of the sliding pearl than the infrabasal plate
Face is high, and the strip connected in star is located at the annular sealing strip and enclosed in region, for preventing grease from leaking and preventing ash
Dirt enters.
The contact board component includes mirror face stainless steel plate, upper substrate and upper junction plate, and the mirror face stainless steel plate is fixed
On the lower surface of the upper substrate；The minute surface of the mirror face stainless steel plate towards the sliding pearl and with the sliding pearl and institute
Annular sealing strip contact is stated, the upper junction plate is fixed on the upper surface of the upper substrate.
The strip channel section is circular arc, and arc radius is slightly larger than the sliding pearl radius, and the strip
Groove is along the horizontally-parallel setting in subway station.
The sliding pearl is embedded in from the strip connected in star both ends, and the sealing block is set at the strip connected in star both ends
Blocked, prevent the sliding pearl from being skidded off from the strip connected in star both ends.
The interface channel connects the oil filler point with the strip connected in star, and lubricant passes through the oil filler point and institute
State interface channel and inject the strip connected in star, ensure the sliding pearl in the strip connected in star slidably.
The mirror face stainless steel plate weld is on the upper substrate.
The infrabasal plate is welded on the lower connecting plate.
The upper substrate is welded on the upper junction plate.
The present invention working mechanism be：The above-mentioned frictional slip device for underground subway station center pillar passes through upper connection
Plate, lower connecting plate are installed between the crossbeam of Metro Station Structure and center pillar., will by ring packing adhesive tape under normal operating condition
Gap between upper substrate, infrabasal plate surrounds, to prevent the grease in infrabasal plate from leaking and prevent dust enters from blocking strip
Groove and interface channel.When geological process, the earthquake load that surrounding soil puts on Metro Station Structure includes horizontal direction
Relative deformation and vertical inertia load, the crossbeam of Metro Station Structure make upper substrate is horizontal on sliding pearl to slide by upper junction plate
Dynamic, glide direction is consistent with the setting direction of strip connected in star, and the frictional slip device after slip, which still is able to play, to be undertaken vertically
The effect of load.Compared with traditional subway station, beam column entirety consolidation structure is changed to set frictional slip structure, ensures overall
While vertical bearing capacity is constant, also effectively reduce the horizontal distortion of center pillar in seismic process, and then with protecting underground
Critical support component in iron station structure seismic process.
Compared with prior art, the advantage of the invention is that：By ring packing adhesive tape by between upper and lower substrate
Gap is surrounded, and to prevent the grease in infrabasal plate from leaking and prevent that dust from entering, ensures the service behaviour of frictional slip device.Ground
The upper and lower substrate of the lower device of shake effect can be by sliding pearl slidably so that the interlayer of underground subway station structure is relative to be become
Shape is not directly applied to center pillar, i.e. center pillar horizontal distortion while vertical bearing capacity is constant effectively reduces, so as to ensure
The security performance of underground structure critical support component in seismic process, mitigate what underground structure was likely to occur in earthquake significantly
Destroy.Clear concept of the present invention, definite principle, is readily produced, and is easy to repair.
Brief description of the drawings
Fig. 1 is the frictional slip schematic device for underground subway station center pillar.
Fig. 2 is the top view of infrabasal plate.
Fig. 3 is the A-A profiles of infrabasal plate.
In figure：1st, upper junction plate, 2, upper substrate, 3, infrabasal plate, 4, lower connecting plate, 5, mirror face stainless steel plate, 6, strip
Groove, 7, sliding pearl, 8, sealing block, 9, annular sealing strip, 10, oil filler point, 11, interface channel.
Embodiment
In order that the object, technical solution and advantage of patent of the present invention are more clearly understood, below in conjunction with accompanying drawing, to this hair
Bright patent is further elaborated.It should be appreciated that specific embodiment described herein is only used for explaining patent of the present invention,
It is not intended to limit the present invention patent.In addition, skill involved in each embodiment of invention described below patent
As long as art feature does not form conflict each other, can is mutually combined.
Reference picture 1, a kind of frictional slip device for underground subway station center pillar, it is characterised in that including sliding panel
Component and contact board component, wherein,
The slip board component includes lower connecting plate (4) and infrabasal plate (3), and the infrabasal plate (3) is fixed on the lower company
On the upper surface of fishplate bar (4)；The upper surface of the infrabasal plate (3) is provided with strip connected in star (6), annular sealing strip (9) and note
Oilhole (10), the infrabasal plate are internally provided with interface channel (11), and the interface channel (11) is by the oil filler point (10)
Being connected with the strip connected in star (6), the strip connected in star (6) is internally provided with sliding pearl (7), and the two of strip connected in star (6)
End is provided with sealing block (8)；The upper surface of the sliding pearl (7) is higher than the upper surface of the infrabasal plate (3), and the strip
Connected in star (6) is located at the annular sealing strip (9) and enclosed in region, for preventing grease from leaking and preventing dust from entering.
It is stainless that the contact board component includes mirror face stainless steel plate (5), upper substrate (2) and upper junction plate (1), the minute surface
Steel plate (5) is fixedly mounted on the lower surface of the upper substrate (2), and the minute surface of the mirror face stainless steel plate (5) is towards the cunning
Pearl (7) simultaneously contacts with the sliding pearl (7) and the annular sealing strip (9), and the upper junction plate (1) is fixed on the upper substrate
(2) on upper surface.
In this example, strip connected in star (6) section is circular arc, and arc radius is slightly larger than sliding pearl (7) radius,
And the strip connected in star (6) is along the horizontally-parallel setting in subway station.
In this example, the sliding pearl (7) is embedded in from strip connected in star (6) both ends, in the strip connected in star (6) two
End sets the sealing block (8) to be blocked, and prevents the sliding pearl (7) from being skidded off from strip connected in star (6) both ends.
In this example, the interface channel (11) connects the oil filler point (10) with the strip connected in star (6), lubrication
Agent injects the strip connected in star (6) by the oil filler point (10) and the interface channel (11), ensures that the sliding pearl (7) exists
In the strip connected in star (6) slidably.
In this example, the mirror face stainless steel plate (5) is welded on the upper substrate (2).
In this example, the infrabasal plate (3) is welded on the lower connecting plate (4).
In this example, the upper substrate (2) is welded on the upper junction plate (1).
Claims (8)
1. a kind of frictional slip device for underground subway station center pillar, it is characterised in that including sliding board component and contact
Board component, wherein,
The slip board component includes lower connecting plate and infrabasal plate, and the infrabasal plate is fixed on the upper surface of the lower connecting plate
On；The upper surface of the infrabasal plate is provided with strip connected in star, annular sealing strip and oil filler point, and the inside of the infrabasal plate is set
There is interface channel, the interface channel connects the oil filler point with the strip connected in star；The strip inside grooves are set
It is equipped with sliding pearl, strip connected in star is provided at both ends with sealing block, the upper surface of the upper surface of the sliding pearl than the infrabasal plate
Height, and the strip connected in star is located at the annular sealing strip and enclosed in region, for preventing grease from leaking and preventing dust
Into；
The contact board component includes mirror face stainless steel plate, upper substrate and upper junction plate, and the mirror face stainless steel plate is fixedly mounted
On the lower surface of the upper substrate；The minute surface of the mirror face stainless steel plate towards the sliding pearl and with the sliding pearl and the ring
Shape sealing strip is contacted, and the upper junction plate is fixed on the upper surface of the upper substrate.
A kind of 2. frictional slip device for underground subway station center pillar according to claim 1, it is characterised in that institute
It is circular arc to state strip channel section, and arc radius is slightly larger than the sliding pearl radius, and the strip connected in star is along subway
The horizontally-parallel setting in station.
A kind of 3. frictional slip device for underground subway station center pillar according to claim 1, it is characterised in that institute
State sliding pearl to be embedded in from the strip connected in star both ends, set the sealing block to be blocked at the strip connected in star both ends,
Prevent the sliding pearl from being skidded off from the strip connected in star both ends.
A kind of 4. frictional slip device for underground subway station center pillar according to claim 1, it is characterised in that institute
State interface channel to connect the oil filler point with the strip connected in star, lubricant passes through the oil filler point and the interface channel
The strip connected in star is injected, ensures the sliding pearl in the strip connected in star slidably.
A kind of 5. frictional slip device for underground subway station center pillar according to claim 1, it is characterised in that institute
Mirror face stainless steel plate weld is stated on the upper substrate.
A kind of 6. frictional slip device for underground subway station center pillar according to claim 1, it is characterised in that institute
Infrabasal plate is stated to be welded on the lower connecting plate.
A kind of 7. frictional slip device for underground subway station center pillar according to claim 1, it is characterised in that institute
Upper substrate is stated to be welded on the upper junction plate.
8. a kind of frictional slip device for underground subway station center pillar according to claim 1, it is characterised in that should
Device is installed between the crossbeam of Metro Station Structure and center pillar by upper junction plate, lower connecting plate；Under normal operating condition, by
Ring packing adhesive tape surrounds the gap between upper substrate, infrabasal plate, to prevent the grease in infrabasal plate from leaking and prevent dust
Into blocking strip connected in star and interface channel；When geological process, surrounding soil puts on the earthquake lotus of Metro Station Structure
Load includes horizontal direction relative deformation and vertical inertia load, and the crossbeam of Metro Station Structure makes upper substrate by upper junction plate
Horizontal on sliding pearl to slide, glide direction is consistent with the setting direction of strip connected in star, and the frictional slip device after slip remains to
Enough play a part of undertaking vertical load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710808633.9A CN107558614A (en) | 2017-09-09 | 2017-09-09 | A kind of frictional slip device for underground subway station center pillar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710808633.9A CN107558614A (en) | 2017-09-09 | 2017-09-09 | A kind of frictional slip device for underground subway station center pillar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107558614A true CN107558614A (en) | 2018-01-09 |
Family
ID=60980386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710808633.9A Pending CN107558614A (en) | 2017-09-09 | 2017-09-09 | A kind of frictional slip device for underground subway station center pillar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107558614A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109668827A (en) * | 2019-01-23 | 2019-04-23 | 扬州市江都永坚有限公司 | A kind of antifriction apparatus and friction coefficient measurement method for testing friction power |
| CN112302186A (en) * | 2020-09-16 | 2021-02-02 | 北京工业大学 | Circular arc groove roller friction support for support column of underground subway station |
| CN112302187A (en) * | 2020-09-16 | 2021-02-02 | 北京工业大学 | Rolling friction support for underground subway station support column |
| CN114370069A (en) * | 2022-03-09 | 2022-04-19 | 华东交通大学 | Bidirectional sliding device for center column of underground structure and application |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109668827A (en) * | 2019-01-23 | 2019-04-23 | 扬州市江都永坚有限公司 | A kind of antifriction apparatus and friction coefficient measurement method for testing friction power |
| CN112302186A (en) * | 2020-09-16 | 2021-02-02 | 北京工业大学 | Circular arc groove roller friction support for support column of underground subway station |
| CN112302187A (en) * | 2020-09-16 | 2021-02-02 | 北京工业大学 | Rolling friction support for underground subway station support column |
| CN114370069A (en) * | 2022-03-09 | 2022-04-19 | 华东交通大学 | Bidirectional sliding device for center column of underground structure and application |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20180109 |