CN207739193U - Flexible protection device - Google Patents

Abstract

The utility model belongs to anticollision device of pier technical field.The technical solution of the utility model is as follows：Flexible protection device, it include the internal damping set with bridge pier interior contact, plate-girder shock-damping structure in shock-absorbing sleeve outer surface is set, the outer shock-absorbing sleeve being set in outside plate-girder shock-damping structure, the slab and girder includes covering the buffer board that be bonded with internal damping, crossbeam of the buffer board equipped with several vertical directions, parallel to each other between the crossbeam, ribs is equipped between the crossbeam and buffer board, the ribs is arranged at equal intervals in the both sides of crossbeam.The beneficial effects of the utility model are：Effectively bridge pier can be protected, three kinds of different degrees of collisions, which occur, with bridge pier for hull is protected, and ensures that slight scraping collision can restore, moderate scraping collision does not damage hull, and severe scraping collision does not damage bridge pier.

Description

Flexible protection device

Technical field

The utility model belongs to anticollision device of pier technical field.

Background technology

It is well known that vessel bump bridge accident is being constantly occurring always all over the world, the frequency of vessel bump bridge accident is more than me The higher imagined.Casualties, property loss and environmental disruption caused by vessel bump bridge accident are surprising.Many ships It hits bridge accident and gently then loses tens thousand of members, heavy then casualties, loss are in terms of millions of, tens million of or even multi-million dollar, largely Indirect loss be even more be difficult to calculate.Therefore take Anticollision Measures particularly necessary on bridge, basic goal is：Prevent bridge Because ship impact force is more than the design bearing capacity of bridge pier, and structural failure is caused, while protecting ship as much as possible, will lost It is minimized by.The pattern of anti-collision facility is different, and working mechanism is just different, or ship impact force is prevented to pass to bridge pier, Or extend the ship collision time by buffering energy dissipating, reduce ship impact force, it is finally reached the purpose of protection bridge security.It is existing Some navigation bridge anti-collision devices are mostly used covers upper steel construction casing around cushion cap or bridge pier, which utilizes steel The damaged energy dissipating of plastic deformation, when ship collision steel jacket box anticollision device, collision-prevention device, discontinuous (intermittent) knot of anti-collision structure outer layer Big deformation occurs for structure steel plate, absorbs local collision energy, and extend time of contact, and impact force peak value is enable to drop It is low, simultaneously because malformation and interaction reduce ship and interstructural energy exchange to stir fore direction. But steel jacket box is typically subjected to single impact, is repaired after damage more difficult；Hull subject to damage when colliding simultaneously；In addition steel Long-term easy-to-rust in water, maintenance cost is higher, therefore it is extremely urgent to design and develop Novel crashproof system using new material.

In recent years since, river raft bridge has 6 more serious collisions 2013 in April, 2016 repeatedly by ship collision Event.After testing, raft bridge in river has 9 T beams impaired, to ensure bridge security, has carried out partly enclosing maintenance and reinforcement to the bridge.

Enter flood season this year, Heavy Rainfall in Southern frequency drops.The attack of extremely rare heavy showers increases wide deep highway bridge and suffers ship The risk that oceangoing ship is hit.Shenzhen-Guangzhou superhighway is that contact Guangzhou, Shenzhen Special District, the important channel in Hong Kong and trunk lines of national expressways are same The Important Sections in river to Sanya national highway Guangdong Province.As most busy main artey of communications, wide depth high speed peak period vehicle flowrate is more than 100000/day, once accident occurs, consequence is hardly imaginable.

Utility model content

The utility model solves the above problems, and provides a kind of flexible protection device

The technical solution of the utility model is as follows：Flexible protection device includes the internal damping set with bridge pier interior contact, if The plate-girder shock-damping structure in shock-absorbing sleeve outer surface is set, the outer shock-absorbing sleeve being set in outside plate-girder shock-damping structure, the slab and girder Include covering the buffer board that be bonded with internal damping, crossbeam of the buffer board equipped with several vertical directions, the crossbeam it Between it is parallel to each other, ribs is equipped between the crossbeam and buffer board, the ribs is arranged at equal intervals in crossbeam Both sides.

Further, the outer shock-absorbing sleeve includes elastic overcoat, elastic inner sleeve and is arranged in elastic overcoat and elasticity Articulated support between inner sleeve, the articulated support include the articulated shaft that middle part is equipped with and be hinged on articulated shaft two Strip side plate.

Further, the material of the elastic overcoat and elastic inner sleeve is elastic rubber.

Further, the described internal damping set material is PPZC composite materials, the internal damping cover internal structure be in Cellular material.

The utility model is flexible protection device, and the damping effect of the device is divided into three levels, and first layer buffering is The material of elastic overcoat, elastic overcoat and elastic inner sleeve is elastic rubber, since ship is during collision, generally there is no Positive direct collision is based on scraping collision in most cases, and the harm of scraping collision is also classified into slight, moderate, severe, slight scraping collision It is smaller to the harmfulness of bridge pier, ordinary circumstance elastic overcoat face scraping collision when, impinge upon on the side of side plate, two strip side plates then around Articulated shaft rotates, and elastic overcoat and elastic inner sleeve are all elongated, and has gathered elastic potential energy pop-up hull, in elastic overcoat and elasticity When set pops up hull, elasticity recovery potential energy, the second layer is slab and girder, for moderate scraping collision, exists in collision process, Two strip side plates are rotated around articulated shaft to both sides plate closing, and after the plate closing of both sides, hull has obtained certain buffering, for the ease of reason The stress of flexible protection device during collision, is divided into stress and the edge perpendicular to flexible protection device by the process for solving scraping collision The tangential force of flexible protection apparatus surface, along flexible protection apparatus surface tangential force by outer shock-absorbing sleeve into row buffering, for hanging down Directly in the stress of flexible protection device by crossbeam as support, due to collision during shear stress it is stronger, be difficult to cut down edge In the case of the tangential force of flexible protection apparatus surface, crossbeam carries out the mode to fracture and carries out alleviation tangential force, wherein horizontal In beam steel grid generate plastic deformation, for the stress perpendicular to flexible protection device be more than support load when crossbeam first into Row bending, and then the reinforcing bar network in ribs is bent, is consumed to the kinetic energy of hull, have reached to hull and The protection of bridge pier, third layer are internal damping set, face to face to severe scraping collision when, first layer and the second layer are destroyed, internally Shock-absorbing sleeve uses honeycomb structure, and when hull destroys buffer board, when being covered into internal damping, hull destroys honeycomb structure Quickly the kinetic energy of hull can be consumed, mitigate damage of the hull to bridge pier.

The beneficial effects of the utility model are：Effectively bridge pier can be protected, occur three for hull and bridge pier The different degrees of collision of kind is protected, and ensures that slight scraping collision can restore, moderate scraping collision does not damage hull, and severe scraping collision does not damage Bridge pier.

Description of the drawings

Fig. 1 is the structural schematic diagram of specific embodiment.

Fig. 2 is schematic diagram in A-A direction in Fig. 1.

Fig. 3 is the structural solid figure of specific embodiment China and foreign countries shock-absorbing sleeve.

Fig. 4 is the structural schematic diagram that internal damping covers in specific embodiment.

Fig. 5 is the schematic diagram of slab and girder in specific embodiment.

Specific implementation mode

Specific embodiment of the present utility model is further described below in conjunction with the accompanying drawings.

Flexible protection device includes covering 5 with the internal damping of bridge pier interior contact, the plate in 5 outer surface of interior shock-absorbing sleeve is arranged Beam shock-damping structure, the outer shock-absorbing sleeve 2 being set in outside plate-girder shock-damping structure, the outer shock-absorbing sleeve 2 include elastic overcoat 21, elasticity Inner sleeve is with 23 and the articulated support that is arranged between elastic overcoat and elastic inner sleeve, the elastic overcoat 21 and elastic inner sleeve 23 material is elastic rubber, and the articulated support includes the articulated shaft 24 and be hinged on articulated shaft 24 that middle part is equipped with Two strip side plates 22, it is PPZC composite materials that the internal damping, which covers 5 materials, and it is in honeycomb that the internal damping, which covers 5 internal structures, Shape material, the slab and girder includes the buffer board 6 being bonded with internal damping set 5, if being equidistantly equipped on the buffer board 6 The crossbeam 1 of dry vertical direction, it is parallel to each other between the crossbeam 1, ribs is equipped between the crossbeam 1 and buffer board 6 3, the ribs 3 is arranged in the both sides of crossbeam 1 at equal intervals.

The utility model is flexible protection device, and the damping effect of the device is divided into three levels, and first layer buffering is The material of elastic overcoat 21, elastic overcoat 21 and elastic inner sleeve 23 is elastic rubber, since ship is during collision, generally not There can be positive direct collision, be based on scraping collision in most cases, the harm of scraping collision is also classified into slight, moderate, severe, gently It is smaller to the harmfulness of bridge pier to spend scraping collision, when ordinary circumstance elastic overcoat 21 faces scraping collision, on the side that impinges upon side plate 22, two Strip side plate 22 is then rotated around articulated shaft 24, and elastic overcoat 21 and elastic inner sleeve 23 are all elongated, and has gathered elastic potential energy pop-up ship When body, elastic overcoat 21 and elastic inner sleeve 23 pop up hull, elasticity recovery potential energy, the second layer is slab and girder, such as Fig. 5 institutes It is shown as the structural schematic diagram of slab and girder, for moderate scraping collision, is existed in collision process, two strip side plates 22 are revolved around articulated shaft 24 The closure of both side plate 22 is gone to, after both side plate 22 is closed, hull has obtained certain buffering, for the ease of understanding the process of scraping collision, The stress of flexible protection device during collision is divided into perpendicular to the stress of flexible protection device and along flexible protection device The tangential force on surface, along flexible protection apparatus surface tangential force by outer shock-absorbing sleeve 2 into row buffering, for perpendicular to flexible protection The stress of device by crossbeam 1 as support, due to collision during shear stress it is stronger, be difficult to cut down along flexible protection device In the case of the tangential force on surface, crossbeam 1 carries out the mode to fracture and carries out alleviation tangential force, bar-mat reinforcement in middle cross beam 1 Lattice 7 generate plastic deformation, and crossbeam is bent first when being more than support load for the stress perpendicular to flexible protection device, It is secondary again to bend the reinforcing bar network 7 in ribs, the kinetic energy of hull is consumed, the guarantor to hull and bridge pier is had reached Shield, third layer is internal damping set, is illustrated in figure 4 the honeycomb structure schematic diagram of internal damping set, face to face to severe scraping collision when, First layer and the second layer are destroyed, and internal shock-absorbing sleeve uses honeycomb structure, when hull destruction buffer board 6, are subtracted into interior When shake set 5, hull carries out energy of rupture to honeycomb structure and is quickly consumed to the kinetic energy of hull, mitigates hull to bridge pier Damage.

The beneficial effects of the utility model are：Effectively bridge pier can be protected, occur three for hull and bridge pier The different degrees of collision of kind is protected, and ensures that slight scraping collision can restore, moderate scraping collision does not damage hull, and severe scraping collision does not damage Bridge pier.

Claims (5)

1. flexible protection device, it is characterised in that including：It is characterized by comprising the internal damping set with bridge pier interior contact, settings Plate-girder shock-damping structure in interior shock-absorbing sleeve outer surface, the outer shock-absorbing sleeve being set in outside plate-girder shock-damping structure, the plate-girder damping Structure includes covering the buffer board being bonded with internal damping, and the buffer board is equipped with the crossbeam of several vertical directions, the cross It is parallel to each other between beam, ribs is equipped between the crossbeam and buffer board, the ribs is arranged in cross at equal intervals The both sides of beam.

2. flexible protection device according to claim 1, it is characterised in that：The outer shock-absorbing sleeve include elastic overcoat, Elastic inner sleeve and the articulated support being arranged between elastic overcoat and elastic inner sleeve, the articulated support includes middle part The articulated shaft being equipped with and two strip side plates being hinged on articulated shaft.

3. flexible protection device according to claim 2, it is characterised in that：The material of the elastic overcoat and elastic inner sleeve Matter is elastic rubber.

4. flexible protection device according to claim 3, it is characterised in that：The internal damping set internal structure is in bee Nest shape material.

5. flexible protection device according to claim 3, it is characterised in that：Reinforcing bar network is equipped in the crossbeam.