CN106436616A - Multi-stage anti-collision device for circular-section pier or pillar - Google Patents
Multi-stage anti-collision device for circular-section pier or pillar Download PDFInfo
- Publication number
- CN106436616A CN106436616A CN201610840156.XA CN201610840156A CN106436616A CN 106436616 A CN106436616 A CN 106436616A CN 201610840156 A CN201610840156 A CN 201610840156A CN 106436616 A CN106436616 A CN 106436616A
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- CN
- China
- Prior art keywords
- casing
- pier
- post
- pillar
- collision device
- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/14—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact specially adapted for local protection, e.g. for bridge piers, for traffic islands
- E01F15/141—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact specially adapted for local protection, e.g. for bridge piers, for traffic islands for column or post protection
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/20—Equipment for shipping on coasts, in harbours or on other fixed marine structures, e.g. bollards
- E02B3/26—Fenders
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Abstract
The invention discloses a multi-stage anti-collision device for a circular-section pier or pillar. The device comprises a main pile casing, reserved gaps, viscous fluid, a secondary pile casing, bolts and a baffle. According to the multi-stage anti-collision device for the circular-section pier or pillar, by installing a novel energy dissipation device on the pier (pillar), when the pier (pillar) is under the effect of a strong impact load, the main pile casing bears the impact load firstly, and meanwhile, impact energy is dissipated through deformation, so that first-stage energy dissipation is achieved; for avoiding that the impact load is too large and thus beyond the resistance limit of the main pile casing, the main pile casing can rotate around the central axis of the pier (pillar), and the overlarge impact load can be transferred, so that second-stage energy dissipation is achieved; and while the main pile casing rotates, through energy dissipation of the viscous fluid between the main pile casing and secondary pile casing, third-stage energy dissipation is achieved, and the phenomenon that the concrete pillar is broken due to impacting is avoided. The multi-stage anti-collision device for the circular-section pier or pillar is used for preventing structural collapse caused when the pier (pillar) fails under the effect of the strong load; and the defects such as poor impact load resistance, low ductility, high building cost and large occupied space of a traditionally-used pier (pillar) strengthened with steel tubular shell are overcome.
Description
Technical field
The present invention relates to the multistage of a kind of circular cross-section pier (post) utilizing advanced composite material (ACM) and viscous flow body fluid to prepare
Anti-collision device, is particularly suited for circular cross-section bridge pier, aquatic building (drilling platforms), building on land, hypogee (subway station
The pillars of a house).
Background technology
Constantly perfect with China's infrastructure construction, overlength super-span bridge, long span building structure, high-speed railway
And subterranean railway scale constantly expands, ensure that structure safety is particularly important.Ship collision accident, train derailing shock accident are sent out again and again
Raw, cause life, the property loss being difficult to bear.It turns out that, bridge, building because of clash into the main cause that has an accident by
The inefficacy of substructure component causes.Pier (post) is as the main vertical applied force component of civil structure, to the safety ensureing structure
Using most important, it subjects quiet, the dynamic load function from superstructure.Under impact load effect, pier (post) is pacified
It is entirely to ensure that the premise of superstructure safety.If pier (post) is impacted, load action produces to damage and even ruptures, then can affect
The normal use of structure, will result in huge life or property loss under severe situation.
At present, Chinese scholars has done much research with regard to anticollision device, collision-prevention device, it is proposed that many anti-collision devices, and existing is anti-
Based on collision device is mostly to improve structural elements rigidity and to strengthen shaping structural parts ability.As steel truss and composite form
Bridge pier mixing CAS, utilize steel truss and composite self-floating anti-collision ring power consumption, strengthen bridge pier anti-collision performance,
This anticollision device, collision-prevention device form is single, is difficult to meet design object under strong impact load action；Use solid interlayer steel tube concrete
Or interior distribution type steel-reinforced concrete post replaces traditional reinforced column, still there is ductility low, non-deformability difference, make
Valency is high, take up room big shortcoming, and strong impact load action lower member easily lost efficacy；Rigid material is used to replace with flexible material
, can only still there is anti-collision performance under strong impact load action not enough by there is certain deformation consumed energy in anticollision device, collision-prevention device
Problem.With causing the Frequent Accidents of structural deterioration because clashing into, increasing structure all takes reinforcement measure, but mainly
It is the single reinforcing mode using new material on the basis of using traditional material reinforcing mode.
Viscoplasticity high damping composite material is had new work(by what two or more material of different nature formed
The material of energy, makes up for each other's deficiencies and learn from each other in performance, produces cooperative effect so that it is have the incomparable superiority of homogenous material
Can, the plurality of advantages such as there is specific strength height, light weight, specific modulus height, anti-fatigue performance is good and damping property is good.Meanwhile, it is being subject to
During to external loads, the viscoplasticity of material self is utilized to carry out damping energy dissipation, will outward by friction in the viscosity between strand
Portion's energy is converted into heat energy, consumes external energy, and such as viscoplasticity high-damping rubber material, this material is widely used in bridge, builds
Build field.
Glued joint (bonding, bonding, cementing, gluing) and refer to that homogeneity or heterogeneous body surface stick with glue the skill that agent links together
The features such as art, has stress distribution continuous, lightweight, or seals, and most technological temperatures are low.Conventional sqtructural adhesive has epoxy
The hot setting adhesives such as resinae, polyurethanes, silicone, polyimide, polyacrylate, polymethacrylates
The thermoplastic adhesives such as class.Wherein, polyurethane adhesive possesses excellent shear strength and impact property, it is adaptable to various
Structural bonding field, and possess excellent flexible nature, adapt to the bonding of different heat expansion coefficient base material, not only bonding force
By force, also there is excellent buffering, shock-absorbing function simultaneously.The low temperature of polyurethane adhesive and ultralow temperature performance exceed every other class
The adhesive of type.
In order to ensure integrally-built safety, the performance safety of structural base primary structure member is most important.Some build
Bridge, building structure Anticollision Measures is taken to bridge pier, bottom post, the anticollision of pier (post) become civil engineering neck
The study hotspot in territory, but, for feature and the existing single reinforcing mode of circular cross-section pier (post), need to study novel
Circular cross-section pier (post) multistage protection device.
Content of the invention
It is an object of the invention to high for existing pier (post) single type anticollision device, collision-prevention device cost, take up room big, ductility is low,
The low deficiency of corrosion resistance, provides the multistage anticollision device, collision-prevention device of a kind of circular cross-section pier (post), and deformability is strong, corrosion resistance
By force, energy-dissipating property is good, can realize multistage power consumption, can be used for circular cross-section bridge pier, the anticollision of building structure bottom column.
The technical solution used in the present invention is：A kind of circular cross-section pier or the multistage anti-collision device of post, including time casing,
Preset clearance, viscous flow body fluid, main casing, bolt, baffle plate, described casing outsourcing is adhesively fixed on pier or post, described master
Being enclosed within outside casing outside time casing, having certain preset clearance between main casing and secondary casing, main casing top is provided with preformed hole,
Fill viscous liquid liquid by preformed hole in preset clearance, and utilize bolt to close, described main casing and reserved between
The bottom surface of gap is provided with baffle plate, baffle plate and time casing bottom sides welding, described main casing, secondary casing, viscous liquid liquid, bolt
Collectively constitute multistage anti-collision device with baffle plate, and be fixed on pier or post, it is achieved the disposition of pier or post.
As preferably, framework of steel reinforcement and the concrete of described pier or post carry out cast-in-place with time casing, it is achieved fixing bonding.
As preferably, described main casing is the composite of viscoplasticity high-damping, such as viscoplasticity high-damping rubber material, has
Certain thickness and severe deformation ability；The cemented side seam of main casing is bondd by adhesive；Adhesive used possesses excellent resisting
Shear strength and impact property, for waterproof, anticorrosion, weathering resistance, low temperature material, such as polyurethane adhesive.
As preferably, described casing is the steel pipe of steel composition, and material is low-carbon steel material.Described viscous liquid liquid
For viscosity material, there is certain viscosity and mobility.
As preferably, described main casing and time casing height are the 1/2～2/3 of pier or post height, and cross section is cylindrical shape.
As preferably, described main casing barrel thickness is preferably set to 200mm-300mm, and described time casing wall thickness is preferably
5mm-8mm, the gap between described main casing and secondary casing is preferably 10mm-20mm.
As preferably, described baffle plate thickness of slab is preferably set to about 10mm.
Above-mentioned circular cross-section pier or the construction method of the multistage anti-collision device of post：
A. use steel pipe prepared by carbon steel material as secondary casing, the steel reinforcement cage made is inserted time casing, on-the-spot
Casting concrete；
B. prepare a set of main casing mould, mould is reserved good end recesses, projection and hole, uses viscoplasticity high-damping
Main casing prepared by composite.
C. the main casing preparing, secondary casing, binding agent being transported to job site, point two parts are installed, and cemented side seam is adopted
Stick with glue agent bonding.
D. injecting viscous liquid from main casing reserving hole, aperture uses bolt to close, is assembled into a circle and cuts
Face pier or the multistage anti-collision device of post.
The design philosophy of the present invention is for realizing multistage power consumption, at the multistage anti-collision device of the upper installation of circular cross-section pier (post).
Operation principle：First main casing is born impact load, simultaneously by deformation to consume Impact energy, it is achieved one-level consumes energy；For
Preventing from resisting the limit owing to impact load is too big beyond main casing, main casing can rotate around pier (post) axis, shifts excessive
Impact load, it is achieved two grades of power consumptions；Main casing is while rotating, by the viscous fluid consumption between main casing and secondary casing
Can, it is achieved three grades of power consumptions, it is to avoid concrete column is severed to be split.
Beneficial effect：1st, the deformation performance of main casing of the present invention is good, when the impact load bearing is at allowable load model
When enclosing interior, self recovery after deformation.
2nd, main casing of the present invention can rotate around pier (post) axis, and the strong impact load bearing when main casing exceedes opposing
When clashing into ultimate load, main casing is by around the rotation of pier (post) axis, transferable part strong impact load.
3rd, main casing of the present invention can rotate around pier (post) axis, in rotation process, by main casing and time casing
Between fill viscous liquid liquid power consumption.
4th, described anti-collision device is compared with single anti-collision device, and pier (post) will not be hit because impact load is too big
Bad, and can make any direction impact load change direction, install, change simplicity, take up room little.
5th, the present invention uses the advanced composite material (ACM) that strong viscoplasticity, corrosion resistance are strong to prepare, and has strong weathering resistance, resistance to
The performance of hot, freeze proof and anti-solar irradiation.
6th, the present invention takes up room little, simple in construction and is applicable to circular cross-section pier (post) anticollision, is particularly well-suited to highway
Bridge pier, close on railway, highway building bottom column, the anticollision etc. of the train station pillars of a house.
Brief description
Fig. 1 is the top view of the multistage anti-collision device of this one circular cross-section pier (post)；
Fig. 2 is the profile at I-I place in Fig. 1；
Fig. 3 is the profile at II-II place in Fig. 2；
Fig. 4 is the top view that in Fig. 3, time casing is connected thin portion with baffle plate；
Fig. 5 is the profile that in Fig. 2, time casing is connected thin portion with baffle plate；
Fig. 6 a is the top view of preformed hole in Fig. 2；
Fig. 6 b is the profile of preformed hole in Fig. 2；
Fig. 7 is the top view that in Fig. 1, bond line connects thin portion；
Figure has：Pier or post 1；Secondary casing 2；Interspace 3 in advance；Viscous flow body fluid 4；Main casing 5；Bond line 6；Bolt 7；In advance
Box out 8；Baffle plate 9.
Detailed description of the invention
The present invention is described in further detail below in conjunction with the accompanying drawings：
A kind of circular cross-section pier of the present invention or the multistage anti-collision device of post, mainly include that the 2nd, time casing interspaces in advance
3rd, viscous flow body fluid the 4th, main casing the 5th, bolt 7 and baffle plate 9.As shown in Figure 1, 2.
Steel reinforcement cage is hung in time casing 2, is cast as one by cast-in-place concrete, as shown in Figure 1 by described casing 2.Secondary
Casing 2 is made up of mild steel steel.
Described main casing 5 is made for viscoplasticity high damping composite material, is enclosed within time casing 2 periphery, with baffle plate 9 for vertical
Support so that main casing 5 can rotate around pier or post 1 axis, and the cemented side seam 6 of main casing 5 uses cementing seam, main casing 5 with
Leave between secondary casing 2 and certain pre-interspace 3, such as Fig. 3.
Described pre-interspace 3 through the inner boundary of whole main casing 5 and time casing 2 contact surface.Such as Fig. 3.
Described viscous flow body fluid 4, is filled in the preset clearance 3 between main casing 5 and secondary casing 2 by preformed hole 8, fills up
Rear employing threaded bolt 7 closes reserved aperture, such as Fig. 2.
Described bolt 7 is threaded rubber bolt, can use hexagonal in hexagon-headed bolt, round end hexagon socket head cap screw, countersunk head
Bolt.
Described baffle plate 9 is arranged on time casing 2 and locates bottom pier or post 1, is connected baffle plate 9 with time casing 2, uses welding
Connect, such as Figure 4 and 5.
Described preformed hole 8 is with threaded hole, supports the use with bolt 7, such as Fig. 6.
Described bond line 6 stitches for tooth mouth, such as Fig. 7.
It should be pointed out that, for those skilled in the art, under the premise without departing from the principles of the invention,
Can also make some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.In the present embodiment not
Clear and definite each part all can use prior art to be realized.
Claims (7)
1. the multistage anti-collision device of a circular cross-section pier or post, it is characterised in that：Including time casing, preset clearance, viscous
Fluid liquid, main casing, bolt, baffle plate, described casing outsourcing is adhesively fixed on pier or post, is enclosed within secondary protecting outside described main casing
Outside Tong, having preset clearance between main casing and secondary casing, main casing top is provided with preformed hole, by preformed hole to preset clearance
Middle filling viscous liquid liquid, and utilize bolt to close, the bottom surface of described main casing and preset clearance is provided with baffle plate, baffle plate
With the welding of secondary casing bottom sides, described main casing, secondary casing, viscous liquid liquid, bolt and baffle plate collectively constitute multistage anti-
Percussion device.
2. the multistage anti-collision device of a kind of circular cross-section pier according to claim 1 or post, it is characterised in that：Described pier
Or framework of steel reinforcement and the concrete of post carry out cast-in-place fixing bonding with time casing.
3. the multistage anti-collision device of a kind of circular cross-section pier according to claim 1 or post, it is characterised in that：Described master
Casing is the composite of viscoplasticity high-damping, and the cemented side seam of main casing is bondd by adhesive.
4. the multistage anti-collision device of a kind of circular cross-section pier according to claim 1 or post, it is characterised in that：Described time
Casing is the steel pipe of steel composition, and material is low-carbon steel material.
5. the multistage anti-collision device of a kind of circular cross-section pier according to claim 1 or post, it is characterised in that：Described master
Casing and time casing height are the 1/2～2/3 of pier or post height, and cross section is cylindrical shape.
6. the multistage anti-collision device of a kind of circular cross-section pier according to claim 1 or post, it is characterised in that：Described master
Casing barrel thickness is set to 200mm-300mm, and described time casing wall thickness is 5mm-8mm, described main casing and time casing it
Between gap be 10mm-20mm.
7. the multistage anti-collision device of a kind of circular cross-section pier according to claim 1 or post, it is characterised in that：Described gear
Plate thickness of slab is set to about 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610840156.XA CN106436616B (en) | 2016-09-21 | 2016-09-21 | A kind of multistage anti-collision device of circular cross-section pier or column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610840156.XA CN106436616B (en) | 2016-09-21 | 2016-09-21 | A kind of multistage anti-collision device of circular cross-section pier or column |
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| CN106436616A true CN106436616A (en) | 2017-02-22 |
| CN106436616B CN106436616B (en) | 2018-10-02 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107780693A (en) * | 2017-10-20 | 2018-03-09 | 南京城镇建筑设计咨询有限公司 | Pillar net mechanical parking storehouse |
| CN107938537A (en) * | 2017-11-30 | 2018-04-20 | 国家电网公司 | A kind of non-newtonian fluid collision prevention girders |
| CN110485277A (en) * | 2019-08-22 | 2019-11-22 | 浙江工业大学 | A kind of detachable anticollision device, collision-prevention device of viaduct pier based on non-newtonian fluid |
| CN112211135A (en) * | 2020-09-06 | 2021-01-12 | 秋晨阳 | Energy-absorbing impact-resistant road guardrail for smart city |
| CN112921869A (en) * | 2021-01-29 | 2021-06-08 | 石凯 | Anti-collision device for traffic engineering |
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| CN102966060A (en) * | 2012-11-28 | 2013-03-13 | 华南理工大学 | Integrally curved surface-shaped pier anti-collision floating type casing box |
| CN103031817A (en) * | 2013-01-10 | 2013-04-10 | 江苏博泓新材料科技有限公司 | Honeycomb lattice enhanced type composite material double-cylinder structure and anti-collision system using same |
| CN204919489U (en) * | 2015-09-16 | 2015-12-30 | 湖南科技大学 | Elasticity is from pressure regulating power consumption buffer that restores to throne |
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| GB1482634A (en) * | 1974-09-30 | 1977-08-10 | Harrison N | Crash barrier |
| CN101555683A (en) * | 2009-05-13 | 2009-10-14 | 中交第一公路勘察设计研究院有限公司 | Efficient low-cost flexible energy dissipation type pier anti-collision safety device |
| CN202369916U (en) * | 2011-11-10 | 2012-08-08 | 宁波大学 | Pouring jacket-combined flexible ship collision preventing device for bridge pier |
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| CN102966060A (en) * | 2012-11-28 | 2013-03-13 | 华南理工大学 | Integrally curved surface-shaped pier anti-collision floating type casing box |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107780693A (en) * | 2017-10-20 | 2018-03-09 | 南京城镇建筑设计咨询有限公司 | Pillar net mechanical parking storehouse |
| CN107938537A (en) * | 2017-11-30 | 2018-04-20 | 国家电网公司 | A kind of non-newtonian fluid collision prevention girders |
| CN110485277A (en) * | 2019-08-22 | 2019-11-22 | 浙江工业大学 | A kind of detachable anticollision device, collision-prevention device of viaduct pier based on non-newtonian fluid |
| CN112211135A (en) * | 2020-09-06 | 2021-01-12 | 秋晨阳 | Energy-absorbing impact-resistant road guardrail for smart city |
| CN112921869A (en) * | 2021-01-29 | 2021-06-08 | 石凯 | Anti-collision device for traffic engineering |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106436616B (en) | 2018-10-02 |
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