CN106351116A - Compound multilayer explosion-proof device used for viaduct pier - Google Patents
Compound multilayer explosion-proof device used for viaduct pier Download PDFInfo
- Publication number
- CN106351116A CN106351116A CN201610939240.7A CN201610939240A CN106351116A CN 106351116 A CN106351116 A CN 106351116A CN 201610939240 A CN201610939240 A CN 201610939240A CN 106351116 A CN106351116 A CN 106351116A
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- China
- Prior art keywords
- steel plate
- pier
- steel pipe
- explosion
- viaduct
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- 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
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
-
- 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
-
- 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
- E01F15/145—Means for vehicle stopping using impact energy absorbers
- E01F15/146—Means for vehicle stopping using impact energy absorbers fixed arrangements
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a compound multilayer explosion-proof device used for a viaduct pier. The compound multilayer explosion-proof device used for the viaduct pier comprises a macromolecular elastomer, a round steel pipe and a void space which are sequentially arranged outside the pier from inside to outside, wherein the macromolecular elastomer is bonded with the pier and a steel plate by virtue of glue, the round steel pipe is connected with the steel plate and the void space in a welding manner, and the void space is composed of an inner steel plate and an outer steel plate. The compound multilayer explosion-proof device used for the viaduct pier has the advantages that an energy conservation principle is utilized, devices, namely the macromolecular elastomer, the round steel pipe and the void space, are arranged at the periphery of the viaduct pier, dynamic response such as acceleration and displacement of the pier under the action of explosion in the air can be effectively reduced, pressure of shock wave is relieved, action of the pressure of the shock wave on the pier is alleviated, energy, acting on the pier, of the shock wave is absorbed by virtue of plastic deformation of the steel pipe and elastic deformation of the macromolecular elastomer, and damage of the viaduct pier under non-contact explosion and contact explosion load is reduced, so that the aim of protecting the viaduct pier is achieved.
Description
Technical field
The invention belongs to the field of preventing and reducing natural disasters of civil engineering jackshaft girder construction, it is related specifically to bridge pier in bridge structure
Security fields, more particularly, it relates to a kind of device of the explosion-proof protection for elevated bridge bridge pier.
Background technology
In the last few years, the terrorist bombings attacked and again and again occurred, and had implemented the explosive damage to science of bridge building by car bomb
Reach one of Main Means of its attack of terrorism purpose through becoming terrorist；Additionally, occasionality explosion accident, such as fireworks are quick-fried
The accidental explosion that fried, oil gas etc. occurs in transportation, also can not be ignored to the harm caused by science of bridge building；Even more important
: in the face of international environment complicated and changeable, the conventional war winning local in the high-tech has become as China's defense
The strategic directing thought of defense policy.Bridge is the important component part of transportation lifeline engineering, and science of bridge building is once feared
Fear explosive attack or hightech conventional weapon hit, the paralysis of life line traffic engineering, regional economic interaction will be caused to interrupt etc.
A series of calamity chain effects.
Bridge pier column is one of crucial primary structure member of bridge structure, and the destruction of bridge pier column is that each component of bridge structure breaks
The most catastrophic in bad, serious will lead to the continuous collapse of whole bridge structure and loss of function, therefore carry out bridge pier column
Antiknock protection become the problem of important research.
With the development of urban economy, urban population increase drastically makes vehicle also increasing, and plane traffic main artery meets with
To serious blocking and crowded, accordingly, it would be desirable to build elevated bridge to alleviate urban traffic blocking；In order to ensure various traffic roads
Line does not interfere with each other, and builds overpass in road, railway crossing part yet；It is widely used in the friendship in highway and urban road
Lead to busy location.Viaduct pier height higher, generally armored concrete pillar bridge pier, columnar pier is thicker, typically in
Single-columned pier, there are circle, rectangle, ellipse or the polygon with Pedicellus et Pericarpium Trapae in its section.
At present, the pier stud antiknock preventer below existing deep water, but the antiknock protection of pier stud and pier stud waterborne under water
Antiknock preventing principle is different, and the antiknock that therefore can not be carried out pier stud waterborne using the antiknock preventer of pier stud under water is protected.
And viaduct pier is normally at more than road surface (more than the water surface), it is easier to suffer explosion accident compared with the following bridge pier of the water surface, one
Denier pier stud is blown up, and overpass total Collapse will certainly be caused to destroy, and destroys compared with only bridge floor and is more difficult to repair.Therefore, urgently
Viaduct pier need to be carried out with antiknock protection, and the antiknock preventer of not yet setting viaduct pier is it is difficult to overhead at present
Bridge bridge pier carries out antiknock protection.
Viaduct pier, in the case of not protected, can directly be subject to the straight of blast air-shock wave and explosion product
Connect effect, bridge pier is typically built using armored concrete, its integral rigidity is larger, and crack-resistant performance of concrete is poor, quick-fried
Fried noncontact close together, that explosive equivalent is larger is exploded and in the contact explositions on pier stud surface, and pier stud can produce seriously
Damage, or even caving in of pier stud can be caused, so that bridge integrally destroys.Lack antiknock during Bridge Design now to set
Meter specification, does not account for the effect of explosive load, does not more have antiknock safeguard procedures, substantial amounts of bridge pier column is firm in conventional design
Degree, intensity or ductility etc. no longer meet antiknock requirement.
Content of the invention
It is an object of the invention to provide a kind of composite multi-layer explosion-protection equipment for viaduct pier, dress is protected by antiknock
The energy expenditure principle put, the shock wave that blast is produced is dissipated, and explosion product is intercepted, and effectively reduces
Explosion wave and explosion product are applied directly to pier stud surface, serve, to pier stud, the effect of being effectively protected, to setting up one
Completely effective antiknock guard system has great importance set.
The technical solution used in the present invention is: a kind of composite multi-layer explosion-protection equipment for viaduct pier, this explosion-proof dress
Put the periphery being arranged on bridge pier, including macromolecular elastomer, round steel pipe and empty cabin；
The inwall of described macromolecular elastomer is bonded at bridge pier surface by colloid, and the outer wall of macromolecular elastomer passes through colloid
It is bonded with steel plate, steel plate outer wall is welded with round steel pipe, welding outside round steel pipe is free cabin；
Described sky cabin includes interior steel plate and outer steel plate, is connected by dividing plate between interior steel plate and outer steel plate.
Described round steel pipe is thin-walled hollow steel pipe, is discontinuously evenly distributed on surface of steel plate, and is welded to connect with steel plate,
Connected by transverse connection between round steel pipe, be welded on outside round steel pipe on the interior steel plate in sky cabin.
Preferably, described macromolecular elastomer is polyurethane material.
Preferably, described steel plate is stainless thin steel sheet.
Preferably, described macromolecular elastomer is connected with bridge pier, steel plate by waterproof adhesive.
Preferably, the transverse connection of described round steel pipe is Circular Thin hollow steel pipe, vertically it is interrupted along bridge pier
Distribution.
Preferably, the dividing plate in described sky cabin is discontinuously welded between interior steel plate and outer steel plate, intermittently-arranged on dividing plate
Dividing plate perforate.
Preferably, arranging relief hole on the outer surface of steel plate in described sky cabin, relief hole is by certain thickness special steel
System lid is constituted.
Beneficial effect:
(1) apparatus of the present invention utilize conservation of energy principle, by setting macromolecular elastomer, circle around viaduct pier
The devices such as steel pipe, empty cabin, can effectively reduce the dynamic responses such as acceleration, the displacement of the lower bridge pier of mid-air explosion effect, to impact
Ripple pressure release simultaneously mitigates the effect to pier stud for the shock wave pressure, by the elastic deformation of the plastic deformation of steel pipe and macromolecular elastomer
To absorb the energy to pier stud for the shock wave, to reduce damage under noncontact blast with contact explositions load for the viaduct pier
Wound, reaches the purpose of protection viaduct pier.
(2) present invention can be additionally used in reducing the damages to viaduct pier for the high-speed impact such as vehicle, reaches multiple-protection
Effect.
(3) in apparatus of the present invention, relief hole plays the effect releasing shock wave pressure, the special steel of relief hole in explosion time
Piece can conveniently be installed after explosion wave and change.
Brief description
Fig. 1 is used for the structural representation of the composite multi-layer explosion-protection equipment of viaduct pier for the present invention；
Fig. 2 is used for the profile of the composite multi-layer explosion-protection equipment of viaduct pier for the present invention.
In figure: 1, bridge pier, the joint face of 2, bridge pier and macromolecular elastomer, 3, macromolecular elastomer, 4, steel plate, 5, circular
Steel pipe, 6, interior steel plate, 7, dividing plate, 8, outer steel plate, 9, relief hole, 10, transverse connection, 11, dividing plate perforate.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings:
As shown in figure 1, the present invention's includes macromolecular elastomer 3, circle for viaduct pier composite multi-layer explosion-protection equipment
Shape steel pipe 5 and empty cabin.
Macromolecular elastomer 3, round steel pipe 5 and empty cabin are successively set on outside bridge pier 1 from inside to outside, wherein, high score
Bullet gonosome 3 is welded to connect with empty cabin with bridge pier 1 and steel plate 4 colloid bonding, round steel pipe 5, and empty cabin is by interior steel plate 6 and outer steel plate
8 compositions.
Waterproof adhesive is uniformly coated after polishing is coarse in bridge pier 1 surface, and macromolecular elastomer 3 is bonded at bridge pier 1 table
Face, can not have bubble to produce between macromolecular elastomer 3 and bridge pier 1.Macromolecular elastomer 3 surface is uniformly coated with waterproof adhesive,
Steel plate 4 is close to macromolecular elastomer 3 surface, bubble between macromolecular elastomer 3 and steel plate 4, can not be had to produce.Steel plate 4 is
Stainless thin steel sheet.Round steel pipe 5 adopts slim round steel pipe, and keep at a certain distance away is distributed in around steel plate 4, passes through
Round steel pipe 5 is connected by welding with the interior steel plate 6 of steel plate 4 and empty cabin, keeps at a certain distance away and both facilitates the welding procedure of steel pipe, and
Interior steel plate 6 deformation can be allowed to play the effect of energy absorption.Connected by transverse connection 10 between round steel pipe 5, laterally connect
Vertically spaced apart, transverse connection 10 can make the slim steel pipe of squarely or circle to fitting 10, by being welded on
On each round steel pipe 5 it is also possible to euphroe by steel chain colligation outside steel pipe to fix round steel pipe 5
Effect.Dividing plate 7 in empty cabin has been only the effect of fixing outer steel plate 8, and the therefore quantity of dividing plate 7 can relatively small number of be distributed
In empty cabin, by welding be connected with interior steel plate 6 and outer steel plate 8, due to keep entirely sky cabin full through, as shown in Fig. 2
All dividing plates 7 are provided with dividing plate perforate 11, dividing plate perforate 11 can be for circular, square or oval it might even be possible to by dividing plate
It is made as lattice it is therefore an objective to will entirely connect in empty cabin, keep shock wave can propagate in empty cabin.The outside setting of outer steel plate 8
Relief hole 9, the making of relief hole 9 is to install certain thickness special steel lid in outer steel plate 8 outside, when explosion wave makes sky
During the intrinsic pressure increase in cabin, steel lid can come off, and so that the air of SHOCK COMPRESSION is released, and reduces the pressure in cabin, and relief hole is permissible
It is designed as circular, square etc..Macromolecular elastomer 3, round steel pipe 5 and empty cabin will be evenly distributed on around bridge pier 1 it is ensured that not
Equidirectional explosion wave and explosion product produce to bridge pier 1 and destroy.
When blast air-shock wave and explosion product are applied on preventer, preventer shock wave and explosion product
The energy carrying plays the effect of decay.Empty cabin as first antiknock defence line damping capacity, when shock wave is arrived with explosion product
When coming, have an effect with outer steel plate 8 first, when energy is less, be insufficient to allow outer steel plate 8 that petal type cracking occurs, outer steel plate 8
Give birth to plastic deformation to absorb the energy of shock wave；Be enough to when energy is larger make outer steel plate 8 entirety ftracture, empty cabin can meet
Inwardly there is the space of craze and transfiguration in outer steel plate 8, once outer steel plate 8 ftractures, shock wave can enter the diffusion of empty cabin, and pressure increases
When, the steel disc of relief hole 9 drops, and reaches pressure release effect, and the energy of shock wave passes through the cracking of outer steel plate 8 and letting out of relief hole 9
Pressure reduces the energy of shock wave and explosion product.
Round steel pipe 5 as second antiknock defence line damping capacity, through the first line of defence shock wave and explosion product
Energy weakened, continue to be applied on round steel pipe 5, the energy of shock wave and explosion product has been largely converted into circle
The kinetic energy of steel pipe 5, round steel pipe 5 is overall to be moved, and when the energy of shock wave and explosion product is larger, portion of energy is passed through
The plastic deformation of round steel pipe 5 carrys out energy absorption.
, as the 3rd road antiknock defence line damping capacity, behind front twice defence line, explosion product is basic for macromolecular elastomer 3
It is blocked in outside, the energy of shock wave continues to propagate toward three lines of defence, the thermal insulation of macromolecular elastomer 3, impact resistance
Property and other effects preferably, can by blast produce heat energy completely isolated outside bridge pier 1, the energy of shock wave dissipated more,
Macromolecular elastomer 3 only needs to by its elastic deformation energy absorption, also can by its rapid recover deformation by elastic potential energy to
Outer release, and macromolecular elastomer 3, also as padded coaming, prevents the preventer of external rigidity from producing destruction to bridge pier 1.
It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention,
Some improvements and modifications can also be made, these improvements and modifications also should be regarded as protection scope of the present invention.In the present embodiment not
The all available prior art of clearly each ingredient is realized.
Claims (7)
1. a kind of composite multi-layer explosion-protection equipment for viaduct pier it is characterised in that: this explosion-protection equipment is arranged on bridge pier
Periphery, including macromolecular elastomer, round steel pipe and empty cabin；
The inwall of described macromolecular elastomer is bonded at bridge pier surface by colloid, and the outer wall of macromolecular elastomer is bondd by colloid
There is steel plate, steel plate outer wall is welded with round steel pipe, welding outside round steel pipe is free cabin；
Described sky cabin includes interior steel plate and outer steel plate, is connected by dividing plate between interior steel plate and outer steel plate.
Described round steel pipe is thin-walled hollow steel pipe, is discontinuously evenly distributed on surface of steel plate, and is welded to connect with steel plate, circular
Connected by transverse connection between steel pipe, be welded on outside round steel pipe on the interior steel plate in sky cabin.
2. a kind of composite multi-layer explosion-protection equipment for viaduct pier according to claim 1 it is characterised in that: described
Macromolecular elastomer is polyurethane material.
3. a kind of composite multi-layer explosion-protection equipment for viaduct pier according to claim 1 it is characterised in that: described
Steel plate is stainless thin steel sheet.
4. a kind of composite multi-layer explosion-protection equipment for viaduct pier according to claim 1 it is characterised in that: described
Macromolecular elastomer is connected with bridge pier, steel plate by waterproof adhesive.
5. a kind of composite multi-layer explosion-protection equipment for viaduct pier according to claim 1 it is characterised in that: described
The transverse connection of round steel pipe is Circular Thin hollow steel pipe, along the vertical Disjunct distribution of bridge pier.
6. a kind of composite multi-layer explosion-protection equipment for viaduct pier according to claim 1 it is characterised in that: described
The dividing plate in empty cabin is discontinuously welded between interior steel plate and outer steel plate, intermittently-arranged dividing plate perforate on dividing plate.
7. a kind of composite multi-layer explosion-protection equipment for viaduct pier according to claim 1 it is characterised in that: described
Relief hole is arranged, relief hole is made up of extraordinary steel lid on the outer surface of steel plate in empty cabin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610939240.7A CN106351116B (en) | 2016-10-25 | 2016-10-25 | A kind of composite multi-layer explosion-protection equipment for viaduct pier |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610939240.7A CN106351116B (en) | 2016-10-25 | 2016-10-25 | A kind of composite multi-layer explosion-protection equipment for viaduct pier |
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| CN106351116A true CN106351116A (en) | 2017-01-25 |
| CN106351116B CN106351116B (en) | 2018-01-16 |
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| CN201610939240.7A Active CN106351116B (en) | 2016-10-25 | 2016-10-25 | A kind of composite multi-layer explosion-protection equipment for viaduct pier |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894371A (en) * | 2017-04-11 | 2017-06-27 | 沈阳鑫东大照明电器有限公司 | A kind of buffer unit |
| CN106894330A (en) * | 2017-02-10 | 2017-06-27 | 合肥学院 | Pier rolling stone impact resisting device based on waste tires and construction method thereof |
| CN107695886A (en) * | 2017-10-31 | 2018-02-16 | 山西太钢不锈钢股份有限公司 | A kind of protector of quick-fried of large-scale grinding wheel of sharpening machine for copper |
| CN108004912A (en) * | 2017-12-25 | 2018-05-08 | 中北大学 | Protective device for circular-sectioned pier explosion-and-knock resistant |
| CN109854055A (en) * | 2018-12-20 | 2019-06-07 | 中国人民解放军军事科学院国防工程研究院 | It is a kind of can manual assembly multinode off-load energy-absorbing combined frame |
| CN110184897A (en) * | 2019-05-21 | 2019-08-30 | 龙彬 | A kind of corrugated steel tube self-floating pier anticollision structure |
| CN111472265A (en) * | 2020-04-14 | 2020-07-31 | 南京理工大学 | Pier protection device with assembled explosion impact resistance and installation method |
| CN113308985A (en) * | 2021-05-21 | 2021-08-27 | 招商局重庆交通科研设计院有限公司 | Wave impact device is prevented to bridge pier |
| CN114086683A (en) * | 2021-11-24 | 2022-02-25 | 天津大学 | Antiknock protective structure based on shock wave steering energy dissipation principle |
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| KR20100006225A (en) * | 2008-07-09 | 2010-01-19 | 윤병원 | Apparatus absorbing of shock between bridge and vessel |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894330A (en) * | 2017-02-10 | 2017-06-27 | 合肥学院 | Pier rolling stone impact resisting device based on waste tires and construction method thereof |
| CN106894330B (en) * | 2017-02-10 | 2018-07-24 | 合肥学院 | Pier rolling stone impact resisting device based on waste tires and construction method thereof |
| CN106894371A (en) * | 2017-04-11 | 2017-06-27 | 沈阳鑫东大照明电器有限公司 | A kind of buffer unit |
| CN107695886A (en) * | 2017-10-31 | 2018-02-16 | 山西太钢不锈钢股份有限公司 | A kind of protector of quick-fried of large-scale grinding wheel of sharpening machine for copper |
| CN107695886B (en) * | 2017-10-31 | 2019-05-03 | 山西太钢不锈钢股份有限公司 | A kind of protective device of quick-fried of grinding wheel of sharpening machine for copper of large size |
| CN108004912B (en) * | 2017-12-25 | 2023-08-15 | 中北大学 | A protector that is used for circular pier stud antiknock to shock |
| CN108004912A (en) * | 2017-12-25 | 2018-05-08 | 中北大学 | Protective device for circular-sectioned pier explosion-and-knock resistant |
| CN109854055A (en) * | 2018-12-20 | 2019-06-07 | 中国人民解放军军事科学院国防工程研究院 | It is a kind of can manual assembly multinode off-load energy-absorbing combined frame |
| CN110184897A (en) * | 2019-05-21 | 2019-08-30 | 龙彬 | A kind of corrugated steel tube self-floating pier anticollision structure |
| CN111472265A (en) * | 2020-04-14 | 2020-07-31 | 南京理工大学 | Pier protection device with assembled explosion impact resistance and installation method |
| CN111472265B (en) * | 2020-04-14 | 2021-09-10 | 南京理工大学 | Pier protection device with assembled explosion impact resistance and installation method |
| CN113308985A (en) * | 2021-05-21 | 2021-08-27 | 招商局重庆交通科研设计院有限公司 | Wave impact device is prevented to bridge pier |
| CN113308985B (en) * | 2021-05-21 | 2022-05-10 | 招商局重庆交通科研设计院有限公司 | Wave impact device is prevented to bridge pier |
| CN114086683A (en) * | 2021-11-24 | 2022-02-25 | 天津大学 | Antiknock protective structure based on shock wave steering energy dissipation principle |
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| Publication number | Publication date |
|---|---|
| CN106351116B (en) | 2018-01-16 |
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