CN107513967B - Flexible anti-collision device - Google Patents
Flexible anti-collision device Download PDFInfo
- Publication number
- CN107513967B CN107513967B CN201710875852.9A CN201710875852A CN107513967B CN 107513967 B CN107513967 B CN 107513967B CN 201710875852 A CN201710875852 A CN 201710875852A CN 107513967 B CN107513967 B CN 107513967B
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- CN
- China
- Prior art keywords
- sleeve
- elastic
- damping
- cross beams
- pier
- 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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- 238000013016 damping Methods 0.000 claims abstract description 44
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 10
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 230000006378 damage Effects 0.000 abstract description 17
- 238000007790 scraping Methods 0.000 abstract description 15
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000005381 potential energy Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 210000003850 cellular structure Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 210000000709 aorta Anatomy 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- 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
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- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention belongs to the technical field of pier anti-collision devices. The flexible anti-collision device comprises an inner damping sleeve in contact with the inner part of a bridge pier, a plate girder damping structure arranged on the outer surface of the damping sleeve, and an outer damping sleeve arranged outside the plate girder damping structure in a sleeved mode, wherein the plate girder structure comprises a buffer plate attached to the inner damping sleeve, a plurality of cross beams in the vertical direction are arranged on the buffer plate, the cross beams are parallel to each other, reinforcing ribs are arranged between the cross beams and the buffer plate, and the reinforcing ribs are arranged on two sides of the cross beams at equal intervals. The invention has the beneficial effects that: can effectually protect the pier, take place three kinds of collisions of different degree to hull and pier and protect, guarantee that slight scraping is bumped recoverable, and moderate scraping does not harm the hull, and severe scraping does not harm the pier.
Description
Technical Field
The invention belongs to the technical field of pier anti-collision devices.
Background
It is well known that bridge-strike accidents occur continuously around the world, with the frequency of the bridge-strike accidents being much higher than i imagine. Casualties, property damage and environmental damage caused by a ship's bridge collision accident are alarming. Many ships lose tens of thousands of yuan when they strike a bridge, and casualties and losses are in the form of millions, tens of millions or even billions of dollars, so that a large number of indirect losses are more difficult to calculate. It is therefore particularly necessary to take anti-collision measures for bridges, the fundamental purpose of which is: the bridge is prevented from being damaged due to the fact that the impact force of the ship exceeds the design bearing force of the bridge pier, the ship is protected as much as possible, and the loss is reduced to the minimum. The anti-collision facilities have different types, and the working mechanisms are different, or the impact force of the ship is prevented from being transmitted to the bridge pier, or the impact time of the ship is prolonged and the impact force of the ship is reduced through buffering and energy dissipation, so that the purpose of protecting the bridge is finally achieved. The existing navigation bridge anti-collision device is mostly sleeved with a steel structure sleeve box around a bearing platform or a bridge pier, the energy dissipation facility utilizes plastic deformation and damage of steel to dissipate energy, when a ship impacts the steel sleeve box anti-collision device, an outer discontinuous (intermittent) structural steel plate of an anti-collision structure is greatly deformed, part of collision energy is absorbed, the contact time is prolonged, the impact force peak value is reduced, and meanwhile, the ship is stirred in the direction of the ship head due to structural deformation and interaction, so that energy exchange between the ship and the structure is reduced. However, the steel sleeve box is usually subjected to single impact, and is difficult to maintain after impact damage; at the same time, the hull is easy to be damaged during collision; in addition, steel is easy to rust in water throughout the year, and the maintenance cost is high, so the design of a novel anti-collision system by adopting a new material is urgent.
In recent years, a joint bridge is collided with a ship many times, and 6 of 2013 to 2016 have serious collision events. Through detection, 9T beams of the joint bridge are damaged, and the bridge is subjected to semi-enclosed maintenance and reinforcement to ensure the safety of the bridge.
The flood season is entered in this year, and the storm frequency in the south is reduced. Extremely rare strong rainfall attacks increase the risk of ship impact for wide-depth high-speed bridges. The wide-deep expressway is an important channel for connecting Guangzhou, shenzhen special region and hong Kong, and is also an important road section from the same river of the national road trunk line to the Guangdong province of the three-way highway. As the busiest traffic aorta, the traffic flow exceeds 10 ten thousand vehicles/day in the wide-deep high-speed peak period, and once accidents occur, the consequences are not considered.
Disclosure of Invention
The present invention solves the above problems by providing a flexible anti-collision device
The technical scheme of the invention is as follows: the flexible anti-collision device comprises an inner damping sleeve in contact with the inner part of a bridge pier, a plate girder damping structure arranged on the outer surface of the damping sleeve, and an outer damping sleeve arranged outside the plate girder damping structure in a sleeved mode, wherein the plate girder structure comprises a buffer plate attached to the inner damping sleeve, a plurality of cross beams in the vertical direction are arranged on the buffer plate, the cross beams are parallel to each other, reinforcing ribs are arranged between the cross beams and the buffer plate, and the reinforcing ribs are arranged on two sides of the cross beams at equal intervals.
Further, the outer damping sleeve comprises an elastic outer sleeve, an elastic inner sleeve and a hinged support piece arranged between the elastic outer sleeve and the elastic inner sleeve, wherein the hinged support piece comprises a hinged shaft arranged in the middle and two side plates hinged on the hinged shaft.
Further, the elastic outer sleeve and the elastic inner sleeve are made of elastic rubber.
Further, the inner damping sleeve is made of PPZC composite material, and the inner damping sleeve is made of honeycomb material.
The invention is a flexible anti-collision device, the damping effect of the device is divided into three layers, the first layer is buffered in an elastic outer sleeve, the elastic outer sleeve and the elastic inner sleeve are made of elastic rubber, as the ship is generally free from direct collision on the front in the collision process, the damage of the scraping is mainly divided into slight, moderate and severe, the slight scraping has smaller damage to the bridge pier, the elastic outer sleeve is impacted on the side edges of the side plates when facing the scraping, the two side plates rotate around the hinge shaft, the elastic outer sleeve and the elastic inner sleeve are elongated, elastic potential energy is accumulated to pop up the ship body, the elastic outer sleeve and the elastic inner sleeve restore the elastic potential energy when popping up the ship body, the second layer is in a plate girder structure, for the moderate scraping, the two side plates rotate around the hinge shaft to be closed after the two side plates are closed, the ship body is buffered to a certain extent, in order to facilitate the understanding of the scraping and collision process, the stress of the flexible anti-collision device in the collision process is divided into the stress vertical to the flexible anti-collision device and the tangential force along the surface of the flexible anti-collision device, the tangential force along the surface of the flexible anti-collision device is buffered by the outer damping sleeve, the stress vertical to the flexible anti-collision device is supported by the cross beam, the shearing stress in the collision process is stronger, under the condition that the tangential force along the surface of the flexible anti-collision device is difficult to cut down, the cross beam breaks, the tangential force is relieved, the steel bar grids in the cross beam generate plastic deformation, the cross beam is firstly bent when the stress vertical to the flexible anti-collision device exceeds the supporting load, then the steel bar network in the reinforcing rib is bent, the kinetic energy of the ship body is consumed, the protection of the ship body and the bridge pier is achieved, the third layer is in interior shock attenuation cover, when facing severe scratch, first layer and second layer have been destroyed, adopt cellular structure to interior shock attenuation cover, when the hull destroyed the buffer plate, when entering interior shock attenuation cover, the hull destroyed the kinetic energy to the hull that can be quick to the cellular structure and consume, lighten the hull to the harm of pier.
The invention has the beneficial effects that: can effectually protect the pier, take place three kinds of collisions of different degree to hull and pier and protect, guarantee that slight scraping is bumped recoverable, and moderate scraping does not harm the hull, and severe scraping does not harm the pier.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment.
Fig. 2 is a schematic view in the direction A-A in fig. 1.
FIG. 3 is a physical diagram of the outer damping sleeve according to an embodiment.
FIG. 4 is a schematic view of the structure of the inner damping sleeve in an embodiment.
Fig. 5 is a schematic view of a plate beam structure in an embodiment.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings.
The flexible anti-collision device comprises an inner damping sleeve 5 in contact with the inside of a pier, a plate girder damping structure arranged on the outer surface of the inner damping sleeve 5, an outer damping sleeve 2 sleeved outside the plate girder damping structure, the outer damping sleeve 2 comprises an elastic outer sleeve 21, an elastic inner sleeve 23 and a hinged support piece arranged between the elastic outer sleeve and the elastic inner sleeve, the elastic outer sleeve 21 and the elastic inner sleeve 23 are made of elastic rubber, the hinged support piece comprises a hinged shaft 24 arranged in the middle and two side plates 22 hinged to the hinged shaft 24, the inner damping sleeve 5 is made of a PPZC composite material, the inner damping sleeve 5 is made of a honeycomb-shaped material, the plate girder structure comprises a buffer plate 6 attached to the inner damping sleeve 5, a plurality of cross beams 1 in the vertical direction are arranged on the buffer plate 6 at equal intervals, the cross beams 1 are parallel to each other, reinforcing ribs 3 are arranged between the cross beams 1 and the buffer plate 6, and the reinforcing ribs 3 are arranged on two sides of the cross beams 1 at equal intervals.
The invention is a flexible anti-collision device, the damping effect of the device is divided into three layers, the first layer of buffering is that the elastic outer sleeve 21, the elastic outer sleeve 21 and the elastic inner sleeve 23 are made of elastic rubber, as the ship is not directly collided with the front in the collision process, most of the damage caused by the collision is mainly the collision, the damage caused by the collision is also divided into slight, moderate and serious, the damage caused by the slight collision to the bridge pier is smaller, the elastic outer sleeve 21 is impacted on the side edges of the side plates 22 when the elastic outer sleeve 21 faces the collision, the two side plates 22 rotate around the hinge shaft 24, the elastic outer sleeve 21 and the elastic inner sleeve 23 are elongated, elastic potential energy is accumulated to pop up the ship body, the elastic outer sleeve 21 and the elastic inner sleeve 23 return to the elastic potential energy when the ship body is popped up, the second layer is in a plate girder structure, as shown in figure 5 is a structural schematic diagram of the plate girder structure, in the collision process, the two side plates 22 rotate around the hinge shaft 24 until the two side plates 22 are closed, after the two side plates 22 are closed, the ship body is buffered to a certain extent, in order to facilitate the understanding of the collision process, the stress of the flexible anti-collision device in the collision process is divided into the stress vertical to the flexible anti-collision device and the tangential force along the surface of the flexible anti-collision device, the tangential force along the surface of the flexible anti-collision device is buffered by the outer damping sleeve 2, the stress vertical to the flexible anti-collision device is supported by the cross beam 1, the shear stress in the collision process is stronger, under the condition that the tangential force along the surface of the flexible anti-collision device is difficult to cut down, the tangential force is relieved in a manner that the cross beam 1 breaks, wherein the reinforcing steel bar grid 7 in the cross beam 1 generates plastic deformation, and the cross beam is firstly bent when the stress vertical to the flexible anti-collision device exceeds the supporting load, secondly, the reinforcing steel bar network 7 in the reinforcing rib is bent to consume the kinetic energy of the ship body, so that the ship body and the bridge pier are protected, the third layer is an inner damping sleeve, a honeycomb structure schematic diagram of the inner damping sleeve is shown in fig. 4, when the ship body is in heavy scraping, the first layer and the second layer are destroyed, the inner damping sleeve is in a honeycomb structure, when the ship body breaks the buffer plate 6 and enters the inner damping sleeve 5, the ship body breaks the honeycomb structure to quickly consume the kinetic energy of the ship body, and damage of the ship body to the bridge pier is reduced.
The invention has the beneficial effects that: can effectually protect the pier, take place three kinds of collisions of different degree to hull and pier and protect, guarantee that slight scraping is bumped recoverable, and moderate scraping does not harm the hull, and severe scraping does not harm the pier.
Claims (1)
1. Flexible buffer stop, its characterized in that: the bridge pier comprises an inner damping sleeve in contact with the inside of a bridge pier, a plate girder damping structure arranged on the outer surface of the inner damping sleeve, and an outer damping sleeve sleeved outside the plate girder damping structure, wherein the plate girder damping structure comprises a buffer plate attached to the inner damping sleeve, a plurality of cross beams in the vertical direction are arranged on the buffer plate, the cross beams are parallel to each other, reinforcing ribs are arranged between the cross beams and the buffer plate, and the reinforcing ribs are arranged on two sides of the cross beams at equal intervals;
the outer damping sleeve comprises an elastic outer sleeve, an elastic inner sleeve and a hinged support piece arranged between the elastic outer sleeve and the elastic inner sleeve, wherein the hinged support piece comprises a hinged shaft arranged in the middle and two side plates hinged on the hinged shaft; the elastic outer sleeve and the elastic inner sleeve are made of elastic rubber;
the inner damping sleeve is made of PPZC composite material; the inner structure of the inner damping sleeve is honeycomb;
and a reinforcing steel bar network is arranged in the cross beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710875852.9A CN107513967B (en) | 2017-09-25 | 2017-09-25 | Flexible anti-collision device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710875852.9A CN107513967B (en) | 2017-09-25 | 2017-09-25 | Flexible anti-collision device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107513967A CN107513967A (en) | 2017-12-26 |
| CN107513967B true CN107513967B (en) | 2024-01-26 |
Family
ID=60726611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710875852.9A Active CN107513967B (en) | 2017-09-25 | 2017-09-25 | Flexible anti-collision device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107513967B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111472305B (en) * | 2018-12-07 | 2022-04-01 | 杭州江润科技有限公司 | Middle pier anti-collision system and construction method |
| CN114542854A (en) * | 2022-02-18 | 2022-05-27 | 中铁建港航局集团勘察设计院有限公司 | Damping device for engineering machinery supporting leg |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201280216Y (en) * | 2008-08-27 | 2009-07-29 | 刘庆斌 | Automatic collision-prevention device for watercraft |
| CN101949138A (en) * | 2010-08-16 | 2011-01-19 | 中交第一公路勘察设计研究院有限公司 | Elastic-plastic steel-structured safety protection device |
| CN204266167U (en) * | 2014-11-21 | 2015-04-15 | 郭义浩 | Anticollision device of pier |
| CN105178253A (en) * | 2014-05-26 | 2015-12-23 | 衡水健达工程橡胶有限公司 | Damping safe structure anti-collision device |
| CN205220579U (en) * | 2015-11-17 | 2016-05-11 | 重庆电子工程职业学院 | Car bumper energy absorption and shock absorption device |
| CN205711885U (en) * | 2016-05-12 | 2016-11-23 | 江苏宏远科技工程有限公司 | Bursting can anti-collision structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101042487B1 (en) * | 2008-07-09 | 2011-06-16 | 윤성철 | Apparatus absorbing of shock between bridge and vessel |
-
2017
- 2017-09-25 CN CN201710875852.9A patent/CN107513967B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201280216Y (en) * | 2008-08-27 | 2009-07-29 | 刘庆斌 | Automatic collision-prevention device for watercraft |
| CN101949138A (en) * | 2010-08-16 | 2011-01-19 | 中交第一公路勘察设计研究院有限公司 | Elastic-plastic steel-structured safety protection device |
| CN105178253A (en) * | 2014-05-26 | 2015-12-23 | 衡水健达工程橡胶有限公司 | Damping safe structure anti-collision device |
| CN204266167U (en) * | 2014-11-21 | 2015-04-15 | 郭义浩 | Anticollision device of pier |
| CN205220579U (en) * | 2015-11-17 | 2016-05-11 | 重庆电子工程职业学院 | Car bumper energy absorption and shock absorption device |
| CN205711885U (en) * | 2016-05-12 | 2016-11-23 | 江苏宏远科技工程有限公司 | Bursting can anti-collision structure |
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| Publication number | Publication date |
|---|---|
| CN107513967A (en) | 2017-12-26 |
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